2021 Mercedes-Benz GLE 350 E TSBs

and 725.1 (NAG3 facelift/9GTRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Cause As part of the ongoing quality monitoring process and associated quality and damaged part appraisals, a high number of ineffective repairs have been discovered. Such ineffective repairs have a negative impact on all those involved. For the customer, it means high costs and long repair times and for the dealer, it may result in the warranty claim being rejected. Remedy General note: IPR is available for: NAG3 Classic (automatic transmission 725.0) NAG3 Classic AMG sport model (AMG 43 and AMG 53 with converter, automatic transmission 725.0) NAG3 Classic Hybrid (automatic transmission 725.0) NAG3 Classic AMG 63 (automatic transmission 725.0) NAG3 MOPF ISG2 (automatic transmission 725.1) NAG3 MOPF Hybrid (automatic transmission 725.1) NAG3 MOPF AMG sport model (AMG 53/AMG 53e with ISG48V2 & converter /hybrid, automatic transmission 725.1) NAG3 MOPF AMG 43/63 with engine 139/177 (automatic transmission 725.1) Steps for the Service Advisor: Important: The more information and detail that can be given to the workshop about the complaint, then the more effective the subsequent diagnosis with IPR can be. To this end, a detailed service reception questionnaire has been provided to help the Service Advisor ask the right questions about the complaint. Ask precise details about the customer complaint and the conditions and context. Fill out the service reception questionnaire (please see WIS document: OF27.00P300005A) for customer complaints in detail and forward it to the workshop. Operation steps for the workshop employee: 1. Perform quick test 2. Access the transmission control unit via XENTRY Diagnosis 3. Select "A customer complaint has been received" and carry out all subsequent operation steps (IPR diagnosis path). 4. The IPR repair instructions are displayed, Carry out the IPR repair instructions without performing any further diagnostic or repair steps. Important: The IPR repair instructions are binding and must be carried out. Differing repairs are possible; such repairs must be documented in XENTRY in free text. Please observe the information regarding the IPR diagnosis process in XENTRY. Conventional diagnosis and subsequent appropriate repairs are only permitted if IPR does not specify any repair instructions. Invoicing for the guided IPR steps: Operation item 270640 and 0.1 hours Notice regarding warranty: The use of IPR in association with warranty claims is mandatory! If the IPR repair instructions are disregarded without justification, the warranty claims may be rejected and/or are subject to debit. IPR will provide a measure to repair the vehicle based on various data sources (EEPROM, fault codes, etc). Please consider the vehicle maintenance record of the vehicle. For warranty and goodwill repairs, the transmission ECU test log and/or IPR test result must be uploaded into Paperless XENTRY Diagnosis (pXD) . If repair is being determined based of oil pan condition pictures of oil pan MUST be provided to warranty as justification. Tamperproof documentation: The IPR repair instructions are stored in the control unit log. Please file this document in a tamperproof manner either in digital form or as a hardcopy printout and also enclose a printout with the damaged part. In this regard, please comply with the countryspecific warranty requirements of the MPC/general distributor.

This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil quality of the transfer case over time Remedy 1. Check initial quick test for faults in the following control units. N45 or N15/7 Allwheel drive (ARS) N127 'Drivetrain' (PTCU) control unit Y3/8 Transmission control for 9gear transmission (VGS) N3/10 Engine electronics for combustion engine If faults are present: Process them as per the guided test in Xentry. If no faults are present: 2. Check the transmission oil level If the oil level is correct: 3. Unplug the connector for the transfer cases control unit and reassess the vehicle on a subsequent test drive If the complaint no longer occurs with the control unit disconnected: 4. Perform an oil change of the transfer case according to WIS specifications Collect an oil sample of the original fluid 5. Complete all transfer case Techin processes located under VG Control Unit > Adaptations Resetting the oil service data Calibration of N15/7 5. Perform road test of vehicle to bring transmission to operating temperature (>60C ) 6. Operate vehicle in full circle with steering at full lock 5x to the left 5x to the right Return the vehicle to the client and request they drive the vehicle for at least 200 miles and return if the concern is not resolved. The extended drive will ensure the clutches are properly conditioned with the new oil and should resolve the concern. If this LI has already been applied to the vehicle, please submit a TIPS case to the Powertrain inbox with the following information: Initial quick test with fault freeze frame data Initial transmission EEPROM data VGS and Transfer Case Control Unit Log (N45 or N15/7) Special Acquisition Data .txt file (Transfer Case Control Unit > Special Procedures > Procedures for support queries to market support > Special Data Acquisition) Photo of the original oil condition What color was the fluid drained from the transfer case before the oil change? Was an oil sample collected, and can you provide a photo of the original fluid? What color and part number fluid was used during the oil change? How far was the vehicle driven after?

and 725.1 (NAG3 facelift/9GTRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Cause As part of the ongoing quality monitoring process and associated quality and damaged part appraisals, a high number of ineffective repairs have been discovered. Such ineffective repairs have a negative impact on all those involved. For the customer, it means high costs and long repair times and for the dealer, it may result in the warranty claim being rejected. Remedy General note: IPR is available for: NAG3 Classic (automatic transmission 725.0) NAG3 AMG sports models (AMG 43 and AMG 53 with converter) NAG3 AMG 63 NAG3 Hybrid NAG3 Facelift (automatic transmission 725.1) NAG3 facelift (725.1) with engine 139/177 (AMG 43/63) Steps for the Service Advisor: Important: The more information and detail that can be given to the workshop about the complaint, then the more effective the subsequent diagnosis with IPR can be. To this end, a detailed service reception questionnaire has been provided to help the Service Advisor ask the right questions about the complaint. Ask precise details about the customer complaint and the conditions and context. Fill out the service reception questionnaire (please see WIS document: OF27. 00P300005A) for customer complaints in detail and forward it to the workshop. Operation steps for the workshop employee: Perform quick test Access the transmission control unit via XENTRY Diagnosis Select "A customer complaint has been received" and carry out all subsequent operation steps (IPR diagnosis path). The IPR repair instructions are displayed. Carry out the IPR repair instructions without performing any further diagnostic or repair steps. Important: The IPR repair instructions are binding and must be carried out. Differing repairs are possible; such repairs must be documented in XENTRY in free text. Please observe the information regarding the IPR diagnosis process in XENTRY. Conventional diagnosis and subsequent appropriate repairs are only permitted if IPR does not specify any repair instructions. Invoicing for the guided IPR steps: Operation item 270640 and 0.1 hours !!!!! Notice regarding warranty: !!!!! The use of IPR in association with warranty claims is mandatory! If the IPR repair instructions are disregarded without justification, the warranty claims may be rejected and/or are subject to debit. IPR will provide a measure to repair the vehicle based on various data sources (EEPROM, fault codes, etc). Please consider the vehicle maintenance record of the vehicle. For warranty and goodwill repairs, the transmission ECU test log and/or IPR test result must be uploaded into Paperless XENTRY Diagnosis (pXD) . If repair is being determined based of oil pan condition pictures of oil pan MUST be provided to warranty as justification. Tamperproof documentation: The IPR repair instructions are stored in the control unit log. Please file this document in a tamperproof manner either in digital form or as a hardcopy printout and also enclose a printout with the damaged part. In this regard, please comply with the countryspecific warranty requirements of the MPC/general distributor.

It will also ensure that if a case is necessary, all supporting documentation is available. This should not be used on its own as justification for creating a TIPS case. Cause The root cause will vary depending on the complaint. The goal of this document is to provide diagnostic checks and procedures that may help resolve customer complaints without opening a TIPS case. Remedy Before opening a transmission-related TIPS case, the following steps must be performed to ensure all relevant data has been collected and possible remedies (when applicable) have been performed. Please Note: At minimum, the documents below must be collected before proceeding to ensure the data in its original state when the vehicle arrived is captured. - Initial Quick Test w/ Freeze frame data - VGS Control Unit Log - Initial EEPROM data (.txt format) - IPR Result (if applicable. See LI27.00-P-073124 - Transmission diagnosis using the Intelligent Predictive Repair (IPR) tool) - Transmission Heath Page If the vehicle has previously been repaired for the same concern, note the date, mileage, and TIPS case or RO number, along with a brief description of the prior work performed. IPR Guidance: The IPR recommended repair should be completed prior to following any steps in this LI and prior to case creation. IPR repairs do not require additional warranty approvals or a TIPS case to validate/confirm the results. To ensure efficient case handling, please avoid opening TIPS cases for this reason. For further information regarding IPR please see the following documents: LI27.00-P-073124 - Transmission diagnosis using the Intelligent Predictive Repair (IPR) tool Oil Pan Condition Evaluation: In some situations, IPR will advise checking the oil pan condition and determining a repair based on the evaluation. Example photos in Xentry can be found in two ways: Use the blue hyperlink in the IPR result, and it will take you to the Condition check of transmission oil Navigate to Xentry Bluebook > Help for control unit > Condition check of transmission oil If a different repair that what is recommended by IPR is performed, attaching photo documentation of the complaint vehicle oil pan and the IPR example to the claim is required. Reproducing the Concern: Proper evaluation of transmission concerns generally requires the condition to be reproducible. It is recommended to compare the vehicle to a similar model, if available, to help determine whether the shift behavior is characteristic of the drivetrain or uncharacteristic for the vehicle. If the concern cannot be duplicated: A test drive with the customer may assist in understanding and reproducing the complaint. The vehicle shift quality should be compared to a known-good vehicle with identical drivetrain and model year. Check Shift Quality History (VGS Control Unit > Adaptations > Shift Quality History) Shift Quality History will show the last 5 noticeable harsh shifts and some of the parameters in which it occurred. You can use this to attempt recreation of the operating conditions and increase likelihood of reproducing the complaint. Complaint A: Shift Quality Note: Certain AMG variants may exhibit more firm and noticeable shift behavior as a normal characteristic. Refer to LI27.60P075147 for additional information. 1. Perform Valve flushing procedure 2. Perform 5 Torque Converter adaptions in a row - Allow the vehicle to warm up naturally, DO NOT power brake as it will increase the temperature in the torque converter. - After the 5th adaptation, collect a screen shot showing all 5 on one page 3. Perform a standstill adaption - collect a screen shot Recheck vehicle operation. If the concern has not improved, driving adaptations should be performed to target specific gear shifts.

Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps: 1. Drive vehicle into workshop (temperature higher than +18 C/+64.4 F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing of fogged/condensed LED headlamps and LED rear lamps on electric vehicles: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). 2. Connect battery backup via a charger. 3. Open the front-end flap and ensure sufficient ventilation. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in condensation, check the headlamp for malfunctions. (see Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Note: Only implement Remedy 1 for model series 463 (from model year 2018) and model series 465. Remedy 2 A defective headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness according to LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. Note: With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system LI82.10-P-078302 Closed ventilation system LI82.10-P-078304

'A' has a short circuit to positive stored in VGS control unit. Cause Electrical failure of oil pressure sensor integrated into VGS Control Unit Remedy Intelligent Predictive Repair (IPR) recognizes this fault pattern and will provide the necessary repair suggestion. 1. Perform IPR and follow the recommended procedures 2. Replace complete EHS valve body, fill to near max fluid level, & complete initial start-up - Ensure all oil guide pipes are installed in the new valve body to prevent a new concern after replacement.

This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil quality of the transfer case over time Remedy 1. Check initial quick test for faults in the following control units. N45 or N15/7 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present: Process them as per the guided test in Xentry. If no faults are present: 2. Check the transmission oil level If the oil level is correct: 3. Unplug the connector for the transfer cases control unit and reassess the vehicle on a subsequent test drive If the complaint no longer occurs with the control unit disconnected: 4. Perform an oil change of the transfer case according to WIS specifications - Collect an oil sample of the original fluid 5. Complete all transfer case Tech-in processes located under VG Control Unit > Adaptations - Resetting the oil service data - Calibration of N15/7 5. Perform road test of vehicle to bring transmission to operating temperature ( >60C ) 6. Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right Return the vehicle to the client and request they drive the vehicle for at least 200 miles and return if the concern is not resolved. The extended drive will ensure the clutches are properly conditioned with the new oil and should resolve the concern. If the concern continues to occur with the control unit disconnected or after the above steps have been performed, please submit a TIPS case to the Powertrain inbox with the following information: - Initial quick test with fault freeze frame data - Initial transmission EEPROM data - VGS and Transfer Case Control Unit Log (N45 or N15/7) - Photo of the original oil condition - What color was the fluid drained from the transfer case before the oil change? - Was an oil sample collected, and can you provide a photo of the original fluid? - What color and part number fluid was used during the oil change? - How far was the vehicle driven after?

the vehicle is stationary and ECO Start/Stop is active (combustion engine is off). The noise is more noticeable outside the vehicle and in acoustically shielded areas such as closed rooms or garages. Cause The noise in the valve body (EHS) is caused by superimposed pressure peaks acting on the valves. This phenomenon occurs only after a certain running-in period due to the influence of micro-contamination in the valve bores. Remedy A hardware modification of the electro-hydraulic control unit (EHS) is currently being implemented (no change to the part number). This will be incorporated into series production and as a spare part starting from 12/2025. This is only a comfort-related complaint and has no impact on the functionality or service life of the transmission. For sensitive customers, the following measures can be performed: 1. Replace the electro-hydraulic control unit (EHS), the oil pan, and the transmission fluid. - Ensure all oil guide pipes are installed in the new valve body to prevent a new concern after replacement. (See attached location guide)

EEPROM or Transmission Health system following the replacement of the below components: - The electrohydraulic control unit (EHS valve body) in transmission 725.0/725.1 - The repair kit for the control unit (VGS) in transmission 725.0 Cause Missing, incorrectly installed, or damaged guide tubes on the EHS valve body. Remedy Check for the correct installation of the guide tubes (refer to attachments under Cause), correct installation if necessary. Parts Catalog References: NAG3M 725.1 AND NAG3C 725.0 (AMG only): Part numbers 100, 120, 150, 160 NAG3C 725.0 (Non AMG): Part numbers 280, 290, 330, 340 NOTE: If any of these guide tubes are not installed and the vehicle is driven, it will create several rinse and slipping events in the EEPROM data. These values caused by incorrect installation need to be erased to prevent future misdiagnosis. Submit a TIPS case to the Powertrain inbox with the following to receive the necessary reset password: - Initial Quick Test w/ Freeze frame data - VGS Control Unit Log - IPR Result - Initial EEPROM data (before repairs) - Latest EEPROM data - Photo of oil level ultrasonic measurement next to XENTRY specifications Please provide detail regarding the reasoning for the initial replacement in your workshop findings and measures performed. (This topic was covered in the July 2022 and July 2024 Passenger Car Tech Topics)

This can be identified through control unit N45 or N15/7 in the quick test. When accelerating with light load, vibrations or jolting sensation may come from the drivetrain. It may be mistaken for a harsh shift. Cause Modified oil quality of the transfer case over time Remedy 1. Check initial quick test for faults in the following control units. N45 or N15/7 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present: Process them as per the guided test in Xentry. If no faults are present: 2. Check the transmission oil level If the oil level is correct: 3. Unplug the connector for the transfer cases control unit and reassess the vehicle on a subsequent test drive If the complaint no longer occurs with the control unit disconnected: 4. Perform an oil change of the transfer case according to WIS specifications - Collect an oil sample of the original fluid 5. Complete all transfer case Tech-in processes located under VG Control Unit > Adaptations - Resetting the oil service data - Calibration of N15/7 5. Perform road test of vehicle to bring transmission to operating temperature ( >60C ) 6. Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right 7. Perform an extended 200mi road test to ensure the clutches are properly conditioned with the new oil. 8. Reassess the concern and release the vehicle if no longer present. If the concern continues to occur with the control unit disconnected or after the above steps have been performed, please submit a TIPS case to the Powertrain inbox with the following information: - Initial quick test with fault freeze frame data - Initial transmission EEPROM data - VGS and Transfer Case Control Unit Log (N45 or N15/7) - Photo of the original oil condition - What color was the fluid drained from the transfer case before the oil change? - Was an oil sample collected, and can you provide a photo of the original fluid? - What color and part number fluid was used during the oil change? - How far was the vehicle driven after?

engine control unit software does not correspond to current production specifications. As a consequence, the functionality of the post-catalyst oxygen sensor may be impaired due to increased thermal loading. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.

our customers, Mercedes-Benz USA, LLC (MBUSA) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection (DMTL) in certain Model Year (MY) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles (vehicles certified as LEV II) and 15 years/150,000 miles (vehicles certified as LEV III), whichever occurs first, for the following condition: Under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code (DTC) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp (MIL).

In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy Check for external damage: You can identify a damaged headlamp in the following way: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent, then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: External damage to the headlamp does not present a warranty or goodwill case. 1. Clear fogged/condensed LED headlamps and LED rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). 7. If the condensation has disappeared, nothing else has to be done. Note: If defrosting has been performed, you can skip the first step. 2. Leak test of headlamp with overpressure: Connect test adapter to pressure tester. (Figure 1) Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. All vents have to be sealed with sealing compound and the existing diaphragm with the stamp (picture 3 [3]). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged (picture 6). If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is tight and there is natural physical condensation. If a higher pressure drop than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. If the pressure test is not passed, the headlamp is leaky. If the cause cannot be rectified, the headlamp must be replaced. Note: If the headlamp is replaced, no dry packs may be installed on the new replacement headlamp. AR82.10-P-5455WT was created for the pressure test. This AR can be used as a reference manual for all closed headlamps. In the event of an open headlamp system, the vent ducts must be sealed before the pressure test.

occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 C/+64.4 F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for damage. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078896 The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions.

Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Do NOT remove the expansion valve from the evaporator prior to being advised to in a TIPS case. 2. Initial Quick Test 3. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 4. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 5. OBS recording of XENTRY AC actual values of compressor request to be on and current value (Instructions in Attachments) 6. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 7. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 8. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 9. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments.

parking See video for example Cause Noise originates within the transmission valvebody Remedy Take a video from underneath vehicle recording the noise Pull EEPROM data, Inital Quick Test, and Control Unit Log Please open a TIPs case providing all data to assess next steps.

- Current and saved fault code in DCCU and powertrain control unit (PTCU): P2E9873 The position sensor of the external socket flap of the vehicle socket (direct current) indicates an electrical fault. The actuator does not open. - The vehicle starts or charges normally and without any problems. Cause Software in the control unit "N116/5 - DC charge-connection unit (DCCU)". Remedy For model series 167 (Only for USA): Remedy is available: Update software for N116/5 (DC charging control unit box) and perform SCN coding of N116/5. Once the SCN coding has been updated, the engine diagnosis indicator lamp (MIL) is no longer actuated with this fault code. For other model series: Work on the SW remedy for N116/5 (DC charging control unit box) is in progress. Once the software is available, update the software for N116/5 and perform SCN coding of N116/5. If this problem occurs, the vehicle start or charging functions are normally not affected; therefore do not replace any parts. Replacing parts does not solve this problem.

and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy It is important that LI54.15-P-057373 is processed before replacing any component parts (transmission 722.9). After processing and complying with the above documents, perform a reset on the transmission control unit Y3/8n4 (VGS) (ignition reset), check that the transmission connector is seated correctly and inspect the PINs for concerns. If communication with the VGS cannot be established afterwards, the component part 'electrohydraulic controller unit (EHS)' must be replaced, as it is not possible to transfer the valve characteristics under the above-mentioned conditions. Installation of a VGS repair kit is not permitted in this case.

Can be identified through control unit N45 or N15/7 in the quick test When accelerating with light load, vibrations or jolting sensation may come from the drivetrain Cause Modified oil quality of the transfer case over time Remedy Check initial quick test for faults in the following control units N45 - All-wheel drive (ARS) N127 - 'Drivetrain' (PTCU) control unit Y3/8 - Transmission control for 9-gear transmission (VGS) N3/10 - Engine electronics for combustion engine If faults are present, process them as per the guided test in Xentry If no faults are present: Check the oil level of the transmission If the oil level is correct: Unplug the connector for the transfer cases control unit Reassess the vehicle on a subsequent test drive If the complaint no longer occurs: Perform an oil change of the transfer case according to WIS specifications After please complete all transfer case Tech-in processes located under VG control unit Adaptations tab - Resetting the oil service data - Calibration of N15/7 Perform road test of vehicle to bring transmission to operating temperature ( >60C ) Operate vehicle in full circle with steering at full lock - 5x to the left - 5x to the right Reassess the vehicle following the oil change and teach in If the problem continues to occur with the plug removed or after the oil change has been carried out: Create a TIPS case with the following data Initial quick test with fault freeze frame data EEPROM data from Y3/8 Transmission control unit EEPROM data from N45 All-wheel drive Injector performance data

Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : Remedy 1 (Only applies to vehicles produced during or prior to June 2023) 1. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 2. Clear picture of VIN on B-pillar. 3. Ensure that the rest of the AC system has been thoroughly checked for leaks before condemning the evaporator. Remedy 2 (Applies to all 167's produced after June 2023) 1. Do NOT remove the expansion valve from the evaporator prior to being advised to in a TIPS case. 2. Initial Quick Test 3. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 4. Picture of the forming gas check being performed with RO that shows the VIN clearly in view. 5. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 6. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 7. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 8. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 9. Open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments.

One of the below fault codes is current in the engine control module (N3/10). P04DB29, P04DB31, P04DB79 Cause Open circuit or high resistance to crankcase vent line contact Remedy 1. Check the electrical connector for the relevant vent line contact switch noted below. Refer to attached photos of connection locations. 2. Ensure the bolted connection is secure and bolt can be torqued (9Nm). 3. Check continuity from vent line connection to ME control unit. Repair wire if damage is found. The circuit from ME provides 5V and is pulled to 0V when the ground connection is intact. M260 P04DB31- S88/15 P04DB79- S88/16 M264 P04DB31- S88/15 P04DB79- S88/16 P04DB29- S88/17 M270/M274 P04DB79- S88/5 Note: This repair is not warrantable if the connection was left loose during previous repair/maintenance.

platform), E-Class (213 and 238 platform), GLE (167 platform), and AMG GT 4-Door (290 platform) vehicles, the engine control unit software does not correspond to current production specifications. As a consequence, the functionality of the post-catalyst oxygen sensor may be impaired due to increased thermal loading. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software.

occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Headlamps comply with all applicable standards. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear lamps: 1. Drive vehicle into workshop (temperature higher than +18 C/+64.4 F) and connect the exhaust extraction. Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the hood or trunk. 4. Switch on the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Clearing fogged/condensed halogen/xenon headlamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4F). Note: Do not perform an engine wash before the defogging test. 2. Switch off the engine. 3. Open the hood. 4. Switch off the lights. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation, a significant reduction in the formation of condensation must be clearly recognizable (thawing progress). Note: If there is no visible reduction in the formation of condensation, check the headlamp for a defect. (See Remedy 2) It is not physically possible to defog the headlamps completely. Fogging does not impair the operation or the service life of the headlamp. Remedy 2 A Damaged headlamp can be identified as follows: 1. Check the headlamp for external damage and that the cover caps and the diaphragm are correctly seated. 2. Check the electrical connectors of the plugs and pins. 3. Check for leak tightness in accordance with LI82.10-P-078307. The test can only be conducted on headlamps. 4. If the headlamp or the rear lamp has any external damage, replace the component part in accordance with the WIS instructions. Note: External damage to the headlamp/rear lamp or faulty seating of the cover caps does not present a warranty or goodwill case. With headlamps, it is possible to install desiccant packs if the problem occurs repeatedly. Open ventilation system: LI82.10-P-064766. Closed ventilation system LI82.10-P-078304

escalated, as well as assist technicians with checks that may help lead in resolving issue without case creation. THIS LI IS NOT TO BE USED AS A REASON FOR CASE CREATION BUT AS A GUIDE IF A CASE IS NEEDED Cause There are, at times, additional steps workshops can do to help diagnose and rectify transmission complaints. Remedy When opening a case for transmissions a EEPROM, Quick Test, and VGS CUL are absolutely necessary Please also check for any relevant LIs before opening case. Also, recommend having customer fill out Transmission Drivability Diagnostic Worksheet especially if complaint is hard to reproduce or intermittent (Work sheet Location: Xentry Portal >> Local Contents >> Diagnostic Info>> Diagnostic Worksheets ) If a previous repair attempt or visit was made for the same concern please include the date, mileage, and case number if applicable of that repair/visit with a short description of what was done. Follow IPR: ( LI27.00-P-073124 ) All IPR suggestions are covered by warranty and there is no need for cases to confirm IPR. Complete IPR suggestions and close out IPR process. If complaint is not fixed and IPR still suggests the same repair once closed out and run again, then a case may be needed. Transmission Health page is a good indicator of issues within transmission if clutch or brake pack stays NOK after adaptions and unable to be made to a green OK then an internal fault is present. Proceed with replacing affected clutch pack. IF more than 3 are red and NOK replace transmission (include printout with warranty claims) **** FOR 167 chassis with M264 engine B08 may be red and NOK, IGNORE this, B08 is still okay **** Shift complaints: Note: AMG variants are known to have a harsher shift see LI27.60-P-075147 It is always worth comparing to a like vehicle if possible to see if shift is uncharacteristic Perform Valve flushing procedure Perform 5 Torque Converter adaptions in a row (Save the results page) Perform standstill adaptions (Save the results page) Drive adaptions if necessary: Drive C mode keep RPM between 2000-2200rpm and lightly let off pedal to force shift wait 2-3 sec then roll on throttle to rpm back up to 2000-2300 rpm repeat for gears 1-3 *For gears 4-8 allow rpm up to 2700 and let off slightly to force upshift = repeat x 10 *For downshift - highest gear possible 8 or 9 - allow decel with light brake drag (allow at least 5s between downshifts for trans to adapt. Go down to 2nd and repeat x10 *Change to sport mode and repeat process again *Lock car to allow sleep at least 10min and restart and road test for quality. After adaptions a new EEPROM should be recorded and included with the original if opening a case Understand shift complaints need to be reproducible to address. If needed drive with client to reproduce the complaint. If shift complaint is intermittent a CAN trace of the issue occurring will be useful (see attached instructions) Shudder: If there is a shudder monitor torque convertor actual values to see if it occurs during slipping, Additionally can lock up convertor and drive to see if issue is resolved Jolting/Shudder: If the vehicle is AWD: unplug AWD control unit or drive vehicle in dyno mode to see if transfer case is causing the jolt/ harsh shift If located from transfer case check fluid and perform a flush if needed to try to rectify the issue. Vibrations: NVH trace is needed, what level vibration is being experienced and where is it located? Is the Vibration felt in neutral? Dyno mode? Does it change with speed? Etc. Noise complaint: Isolate the noise location using chassis ear. MUST attach a sound recording or video of the noise. Describe when the noise is present: Does it change with gear or speed? Does it occur with vehicle in neutral or in glide mode? Does operating temperature effect noise? Does incline/decline or steering angel effect noise?

Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. If the vehicle is produced AFTER June 2023, a TIPS case is required for replacement. Please open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. 9. For vehicles produced during or prior to June 2023, a TIPS is not necessary. However, parts from repairs on such vehicles may be requested back for analysis at the QEC. Therefore, please follow parts disposition in NetStar. Repairs where parts are not returned per parts disposition instructions, or parts found to be NTF (no trouble found) are subject to debit. NOTE: Please see the list of WIS documents for forming gas leak check and recharging of the system. All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. Ensure that a full vacuum is pulled on the system for at least 30 minutes after replacement Condenser replacement is NOT authorized as a suitable repair in lieu of the dryer not being available.

Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy If other fault codes related to engine fan are present, process these first. Replace engine fan with part as specified in XENTRY parts information. Group 50/015. Note: Do not install a lower wattage fan than what was originally installed in vehicle.

Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing fogged/condensed rear lamps: 1. Drive the vehicle into the workshop (temperature higher than +18 C/+64.4 F) Note: Do not wash the vehicle or subject it to high-pressure cleaning before the defogging test. 2. Switch off the engine and connect battery support via a charger. 3. Open the trunk. 4. Switch on the exterior lighting. 5. Leave the vehicle in this state for 60 minutes. 6. Check for formation of condensation -> a significant reduction in the formation of condensation must be clearly recognizable (defogging progress).

Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures : 1. Initial Quick Test 2. Create a short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (Instructions in Attachments) 5. Video recording of the leak being found via sniffer at the R/F AC drain after removing the under dash panel. (see attached videos) 6. If the evaporator is found to be leaking via sniffer, another video needs to be uploaded (or a continuation if only making the video after checks), showing the expansion valve being checked for leaks. 7. If no leaks are found with the sniffer at the expansion valve, spray soapy water mix on the expansion valve and check for leaks. Upload a video showing the spray test and VIN. 8. If the vehicle is produced AFTER June 2023, a TIPS case is required for replacement. Please open a TIPS case in the HV/LV inbox labeled "167 Evaporator Suspected of Leaking" with all attachments. 9. For vehicles produced during or prior to June 2023, a TIPS is not necessary. However, parts from repairs on such vehicles may be requested back for analysis at the QEC. Therefore, please follow parts disposition in NetStar. Repairs where parts are not returned per parts disposition instructions, or parts found to be NTF (no trouble found) are subject to debit. NOTE: Please see the list of WIS documents for forming gas leak check, AC flushing and recharging of the system. All documents, with the exception of videos need to be uploaded for the warranty claim. Videos are only needed if a TIPS case is opened. The dryer must be replaced when there is a leak in the AC system.

Normalization cannot be performed in its entirety using XENTRY Cause Various Remedy *Make sure a battery charger is connected to vehicle while performing all testing* Please perform the following checks that help to resolve most concerns: #1 - Make sure seat control units have latest software installed on them. #2 - For seat folding concerns, pay careful attention to the lock mechanism and ensure it is fully releasing. If the locking mechanism is short-stroking, please replace associated Bowden cables. #2a - Seat folding concerns can also be related to binding of the seat frame. To remedy, loosen torque off bolts holding seat frame to car. Shift seat frame and ensure there is no binding. Re-torque bolts securing seat frame to car and re-test. #2b - For 3rd row seats, you can remove the backrest cushion to expose the folding latch motor/mechanism. If the springs are loose/not-captured, then you must replace this assembly. If the assembly is not available by itself, the seat frame must be replaced (as the assembly is included in new one). #3 - For seats showing unlocked in the IC when fully locked, please check seat frame carefully for small microswitches that can be damaged. #4 - For seats moving forward but not folding upward (2nd row), please ensure the 4 small clips are still located on the inner and outer rails of the seat. If they are broken (example being passenger kicking them), the seat will not fold up.

Cause Possible refrigerant leak at the evaporator. Remedy Perform the following measures and open a TIPS case labeled "167 Evaporator Suspected of Leaking" In the case, please include the following: 1. Attach the Initial Quick Test 2. Short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (s 5. Video recording of the leak being found via sniffer and location. Note - Please see the list of WIS documents for forming gas leak check, AC flushing and recharging of the system. The dryer must be replaced when there is a leak in the AC system.

Possible refrigerant leak at the evaporator. Perform the following measures and open a TIPS case labeled "167 Evaporator Suspected of Leaking" In the case, please include the following: 1. Attach the Initial Quick Test 2. Short video of the actual pressures via AC machine, showing the engine running, and hold a copy of the VIN/RO in view as well. 3. Picture of the forming gas check being performed with VIN/RO in view. 4. OBS recording of XENTRY AC actual values of compressor request to be on and current value. (s 5. Video recording of the leak being found via sniffer and location. Note - Please see the list of WIS documents for forming gas leak check, AC flushing and recharging of the system.

software update in control unit HU6 in the head unit (A26/17) to version E871.1 (A 247 904 53 00).

can also be felt at the steering wheel. Particularly when braking or accelerating Stick/slip effect in sliding piece of steering coupling. Replace steering coupling.

Check engine light may be activated. Various causes Up to Model year 2018 Fault code P06DA00 can be disregarded if not activating the check engine light, unless otherwise specified in the guided test. The vehicle continues to operate as designed. Further causes should be investigated if complaint of check engine light is received. If fault code P06DA00 is activating the check engine light, update software of the ME control unit. No further repairs needed if the code no longer activates check engine light after 2 drive cycles. Model year 2019 and later Fault code P06DA00 will activate check engine light as of model year 2019. No driveability concerns will be observed, only illumination of the CEL. This fault code indicates high resistance or open in the circuit to Y130 oil pump control valve. Perform guided test for component Y130 under list of tests in ME. Diagnose location of high resistance or open in Y130 circuit and repair as necessary. Warranty claims submitted without supporting guided test results may be subject to debit.

C-Class (205 platform), CLA (118 platform), G-Class (463 platform), GLC (253 platform), GLA (247 platform) and GLE/GLS (167 platform) vehicles, the installed ignition coils may not correspond to current specifications. As a result, a misfire could occur, followed by potentially reduced engine output, and illumination of the check engine Malfunction Indicator Lamp (MIL). This may also cause exhaust emissions to increase. MBUSA will conduct a voluntary Emissions Recall Campaign in which an authorized Mercedes- Benz dealer will replace the ignition coils.

Cause - Remedy Please create a TIPS case with informative videos and send this to the responsible MPC.

Fault code P063500: "The electric power steering has a malfunction. _" in control unit N68 "Electric power steering" The fault code details show for "Root_Cause_ErrorID": 60015 - ECU reset occurred - No assist start-up was executed Cause Software error when starting the electric power steering control unit (N68). Remedy Perform software update of electric power steering, control unit N68. Please also observe the guided check in XENTRY Diagnosis!

or retrieving the position of the curb detection automatic system. Left outside mirror: Left/right actuation swapped around Right outside mirror: Up/down actuation swapped around Example: When retrieving from the curb detection automatic system (engaging drive mode R), the mirror moves upward instead of downward. When engaging drive mode D, the mirror moves downward instead of upward. Note: The directions for glass adjustment are correctly actuated through use of the mirror glass adjustment switch. Cause Glass adjustment motor installed with incorrect setting. Remedy Exchange glass adjustment motor.

connection of the NVH struts in the engine compartment (see picture in the attachment), noises may be perceived in the area of the instrument panel. Remedy Replacement of the 8 screws of the NVH struts in the engine compartment.

Fault code P048392 or P048397 present in N127 Powertrain Control Unit. Cause Faulty communication between fan and control unit N127-PTCU. Remedy Replace engine fan with part as specified in XENTRY parts information. Group 50/015 part 400. Note: Do not install a lower wattage fan than what was originally installed in vehicle.

Cause Cleaning instructions in WIS are not being sufficiently observed. This can result in dirt entering the hydraulic system of the vehicle or the filling unit. In subsequent filling/emptying procedures, the dirt is then transferred to another vehicle. Remedy Before removing/replacing an electrohydraulic pump unit or the associated hydraulic lines, as well as when removing the electrohydraulic suspension struts, it is essential to thoroughly wash the underbody. If the dust cap is missing/defective and if the filling valve in the interior is contaminated, the surrounding area must be cleaned thoroughly.

(118 platform), GLE/GLS (167 platform), C-Class (205 platform), E-Class (213 platform), GLA (247 platform), GLC (253 platform), AMG GT (290 platform) and G-Class (463 platform) model series vehicles, the installed ignition coils may not correspond to current specifications. This may result in misfire, reduced engine output, and illumination of the Malfunction Indicator Lamp (MIL). What Were Doing MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes- Benz dealership will replace the ignition coils.

(RES) command from the Mercedes me app. The customer may receive the following message in the Mercedes me app: "Your vehicle's engine has been switched off because the engine control unit or the engine itself was switched off permanently." Cause Engine running status signal causes Electronic Ignition Switch (EZS) to switch off the engine. Remedy Check the software of the EZS for two possible scenarios. Update EZS Software or Replace EZS as necessary.

shown in red on vehicles with low mileage. Cause Directional control valve may stick. Remedy 1- Read off oil level in instrument cluster and correct if necessary. 2- Perform approx. 10-15 engine starts, then clear fault codes. 3- Perform road test with vehicle. If fault code reoccurs during road test: Install new directional control valve.

This only occurs if the first Remote Start via the Mercedes me App was canceled and then started again. If the first attempt was stopped by unlocking the doors or if the engine ran for more than 10 minutes, then the second attempt is also successful

audible humming noise may emit from the speakers. New sound amp (N40/3) software is currently in development. This document will be updated once it is released. Meanwhile, avoid toggling the drive program or the exhaust flap with 10 seconds of an engine start to avoid the possibility of the complaint occurring. Note: Do not replace any parts as this will not remedy the complaint

P0CFE00 is stored in control unit "N83 - AC charger for high-voltage battery (SG-LG)". The fault message and the fault memory entry can also appear at the beginning of the charging pause during delayed charging. Both only occur in combination with active pre-entry climate control. Cause Software in control unit "N83 - AC charger for high-voltage battery (SG-LG)". Remedy For plug-in Model Series167, 206, 214, 223, 247, 254: Carry out software update and SCN coding for the control unit "N83 AC charger for high-voltage battery (SG-LG)". For model series 243: Carry out software update and SCN coding for the control units "N116/5 DC charge-connection unit (DCCU)" and "N83/11 AC charger for high-voltage battery (SG-LG)"

P0CFE00 is stored in control unit "N83 - AC charger for high-voltage battery (SG-LG)". The fault message and the fault memory entry can also appear at the beginning of the charging pause during delayed charging. Both only occur in combination with active pre-entry climate control. Cause Software in control unit "N83 - AC charger for high-voltage battery (SG-LG)". Remedy For the plug-in hybrid model series 118, 167, 206, 214, 223, 247, 254: Carry out software update and SCN coding for the control unit "N83 AC charger for high-voltage battery (SG-LG)". For model series 243: Carry out software update and SCN coding for the control units "N116/5 DC charge-connection unit (DCCU)" and "N83/11 AC charger for high-voltage battery (SG-LG)"

electrical system The following fault codes related to stuck contactor can be found in the High Voltage Control units : PTCU - N127 (Powertrain control unit) P154900 - There is a warning due to overcurrent in the charging system of the high-voltage electric circuit. P154A00 - There is a warning due to a detected crash event at standstill. P154B00 - There is a warning due to a stuck contactor. DCB223 - N116/5 (Direct current charge connection unit) P0E8929 - The input current of the on-board DC charging connection unit is too high. There is an invalid signal. P2BC500 - The contact ''Positive terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed P2BCC00 - The contact ''Negative terminal'' of the contactor in the on-board DC current charge-connection unit is jammed closed. Cause Current ripple due to EVSE (Electric Vehicle Supply Equipment) Overcurrent or Overvoltage due to EVSE (Electric Vehicle Supply Equipment) DCB contactors did not open immediately due to welding time at the end of DC charging Remedy Check for a new software availability for DCCU (N116/5 - Direct Current Charge connection Unit). If a new software is available, update the software first. Reset contactor fault through special procedure without password. ( N116/5 >> Special Procedure >> Resetting of contactor fault.) Important Note : Do not replace component DCB (N116/5) If fault codes are not erasable, please raise a TIPS case and send it to HQ.

complaints may be noted: - One or more menu selections (navigation, AMG, etc.) are missing from the instrument cluster display - The menu icons are present but the functionality does not appear in instrument cluster display after it is selected Cause - Communication between the instrument cluster control unit (N133/1) and the multifunction display (A40/16) - Incorrect instrument cluster control unit (N133/1) SCN coding Note: Some instrument cluster menu options are dependent on option code (i.e. the navigation menu option will only be present on vehicles equipped with navigation, code 365). Before Before beginning diagnosis, ensure that the vehicle is equipped with the accompanying option code Remedy If the first complaint is noted: - Perform a circuit 30 reset of the MBUX multimedia system (A26/17), the instrument cluster control unit (N133/1), and the multifunction display (A40/16). I.e. disconnect the control units from power simultaneously for 1 hour, or disconnect the ground cable for the 12V battery for 1 hour - If the above step does not remedy the complaint, perform initial start-up of the instrument cluster control unit (N133/1) with Xentry diagnosis software release 12/2019 and addon 14970 or newer - If the above steps do not remedy the complaint, perform initial start-up of the MBUX multimedia system (A26/17). Then perform a factory reset of the head unit (Settings -> System -> Reset) If the second complaint is noted: - SCN code the instrument cluster control unit (N133/1)

our customers, Mercedes-Benz USA is extending the warranty coverage for the Diagnostic Module for Tank Leakage detection (DMTL) on your vehicle from the original New Vehicle Limited Warranty of 4 years / 50,000 miles to 15 years/150,000 miles (whichever occurs first). This applies to the vehicle regardless of ownership.

Fault code in N10/8 - rear signal acquisition and actuation module in the quick test: B164B49 The rear right turn signal lamp has malfunctioned. There is an internal electrical fault. and/or B164A49 The rear left turn signal lamp has malfunctioned. There is an internal electrical fault. Cause Sensitive fault detection in N10/8 - rear signal acquisition and actuation module (BC_R) Remedy 1. Check rear lamp for failure of the individual LEDs In the event that an LED fails, the rear lamp must be replaced 2. Check the software release of the Rear SAM (BC_R) and update if necessary 3. Add AO code "o70" via VeDoc 4. Perform SCN coding of Rear SAM (BC_R). 5. If concern occurred on left, use damage code 82C20 73 6. If concern occurred on right, use damage code 82R20 73

communication software does not correspond with the latest series production configuration. The communication module will receive an OTA update which includes quality-enhancing optimizations and improves the system stability and accessibility of Mercedes me services. The update is downloaded and installed in the background. During installation, the system can be used without restrictions. The new software will become active after the vehicle has been restarted. Remedy MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit.

control units FSCM_GEN4/5/6 For these fault codes, the tests contained in XENTRY must be carried out P046109 / P206609 / P13E600 For these fault codes, the connector couplings/wiring harness routing must be checked for damage P206600 / P046100 Cause Various Remedy Carry out XENTRY tests for the listed fault codes in the FSCM (N118) and document the monitor graphics for the primary/ secondary lever-type sensors.

Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap before replacing the central locking actuator. For gasoline hybrid vehicles where the fuel filler flap fails to open or does so but slowly, observe the document "Fuel filler flap fails to open or does so but slowly on plug-in HYBRID gasoline vehicles"! Cause Central locking actuator may have an electrical fault and may not open. Remedy 1. Car locked: To rule out incorrect operation, operate the fuel filler flap in the area shown in Fig. 1 and listen out for the clicking noise of the microswitch in the central locking actuator. If no clicking can be heard, continue with point 4. 2. Car unlocked: Press area on flap to start the microswitch clicking. Flap opens - show the customer the area to press. 3. Car unlocked: Flap cannot be opened regardless of which area you press. Open the flap by operating the emergency release for the CL actuator (through trunk, fender gap cover, etc, depending on specific vehicle) 4. Central locking actuator pressed directly, no clicking of microswitch, no electrical release of central locking actuator => Clicking of microswitch, electrical release of central locking actuator => Tank filler recess/charging recess not OK; report results via a TIPS case to B/C/E Inbox. 5. Replace central locking actuator; check function of new part before installing it: Do not dispose of damaged part. New central locking actuator does not release: More detailed examination of connector coupling, wiring harness, electrics required.

control units FSCM_GEN4/5/6 For these fault codes, the tests contained in XENTRY must be carried out P046109 / P206609 / P13E600 For these fault codes, the connector couplings/wiring harness routing must be checked for damage P206600 / P046100 Cause Various Remedy Carry out XENTRY tests for the listed fault codes in the FSCM (N118) and document the monitor graphics for the primary/ secondary lever-type sensors.

This complaint only occurs when "voice amplification" is active. Coupling noise of microphone signal in voice amplification. Intermediate remedy: The interference noise can be remedied by deactivating voice amplification: "Home" -> "Settings" -> "System" -> "Audio" and de-select "Voice amplification to rear" to switch off the function (see attachment). Note: To activate or deactivate the function, the ignition must be switched on, seat belts (at rear and front) must be fitted and the doors, windows and roof must be closed. Permanent solution: Perform software update of MBUX multimedia system (A26/17) to E419.5 (available from 06/19) or greater. Deactivate the voice amplification feature. Inform customer of function and effects of additional sounds caused by driving over bumps or uneven road surfaces.

2. Update left rear seat control unit software. - To do this, select menu item "Quick test view N32/5 Left rear electrical seat adjustment Adaptations Update of control unit software". - Then follow the user guidance in XENTRY Diagnosis. 3. Update right rear seat control unit software. - To do this, select menu item "Quick test view N32/6 Right rear electrical seat adjustment Adaptations Update of control unit software". - Then follow the user guidance in XENTRY Diagnosis. 4. Disconnect XENTRY Diagnosis.

Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead. The recoding can be carried out as follows: 1. Add AO code O19 in VeDoc (O as in the letter "O" for Oscar, not the number "0"/zero) 2. EZS N73: Perform SCN coding 3. Deactivate the vehicle key (a successful deactivation is indicated by the LED lighting up 2x briefly and then 1x for a long period). 4. Place the vehicle key on the key symbol in the storage compartment and then switch on the ignition. All other vehicle keys must be outside of the vehicle when doing this! Perform steps 3 and 4 successively for all vehicle keys. Notes: 6th, 7th and 8th generation keys can be deactivated as follows: Up to modification year 22/1, by double-clicking on the locking button

CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253, 166/292, 190/290,217/222, 231, 172) vehicles, the software of the communication module does not correspond with the latest series production configuration. This free of charge update includes quality-enhancing optimizations for the communication module to improve the system stability and better availability of the Mercedes me services. The update is downloaded and installed in the background. This process takes approx. 15 minutes. During the installation, the system can be used without restrictions. The new software will be active after the vehicle has been switched off. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge without an additional workshop visit via the data link of the communication module. All customers will be mailed a letter informing them of this software update.

A-Class, CLA, E-Class, G-Class, GLA, GLB, GLC, GLE, GLS, and S-Class (177, 118, 238, 463, 247, 253, 167, and 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration. The communication module system will receive an OTA update to improve system stability and availability of Mercedes me services. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. A letter will be mailed to all customers informing them of this OTA software update.

and/or when entering the vehicle. All MFA2 and 167 derivates with code 882 may be affected. This is caused by a sporadic loss of communication to the anti-theft alarm system [N26/6]. In many instances there are one or more FCs U110D87, U001988, U016787 stored in the control units anti-theft alarm system [N26/6] and/or signal acquisition and actuation module [N10] / [N10/6]. The alarm system memory may contain several alarm sources. Please process all following points in succession: 1. Check - Power supply of the overhead control panel [N70] - Ground points of the overhead control panel [N70] Model series 118, 177, 247: W78 Model series 167: W15/2 Model series 243: W78/2 - LIN lines between overhead control panel [N70] and alarm siren [H3/1] - CAN lines between overhead control panel [N70] and signal acquisition and actuation module [N10] or [N10/6] 2. Open TIPS case - Open a TIPS case for vehicles: As of manufacturing date 01.02.2022, except production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa As of manufacturing date 01.08.2022 and production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa - Attach photo of overhead control panel label (see example images) - Add control unit log of anti-theft alarm system [N26/6] 3. Remedy for vehicles prior to manufacturing date 01.02.2022 (except production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa) or 01.08.2022 (production plant 4831 Aguascalientes Mexico or 1380 Tuscaloosa) - If the problem cannot be reproduced, the overhead control panel [N70] (anti-theft alarm system [N26/6] is integrated) must be replaced.

Under analysis. Check which area of the steering column the noises occur in. Do the noises tend to occur at the bottom in the driver footwell or do they tend to occur in the area of the steering column switch module (MRSM/SCCM)? If the noises occur in the area of the MRSM/SCCM, work through the following points: - Loosen screws of the MRSM/SCCM and steering wheel, re-align the MRSM/SCCM, and re-fasten the screws (see WIS). Sometimes there is stress at the MRSM/SCCM and noises occur. - If noises continue to occur, swap the MRSM/SCCM into a vehicle without any (noise) complaints. - If the noises occur with the MRSM/SCCM complained about when it is in the vehicle without a complaint (donor vehicle), the MRSM/SCCM can be replaced. - If noises also occur in the customer vehicle with the MRSM/SCCM from the reference vehicle, the MRSM/SCCM is not the cause and must not be replaced. Notes: - When installing the MRSM/SCCM, make sure that no damage occurs! - Only disassemble and mount all component parts in the "straight-ahead position" (see also WIS). - Please refer to this LI in the "Notes" section of the warranty claim!

steering maneuvers See example file in the attachments area: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises.mp4 The plastic cover on the back of the steering wheel is not positioned correctly and may therefore rub against the steering column switch module Please use the following noise files for the damaged part analysis: 1. Grinding noise | pot. cause: steering wheel | see attachment: Lenkrad-Schleifgerusch_SteeringWheel-GrindingNoises. mp4 2. Creaking/cracking noise | pot. cause: steering column switch module | see attachment: MRSM-Schleifgerusch_ SCCM-GrindingNoises.MOV If the noise is due to the steering column switch module, please use LI46.10-P-077314. Check for grinding areas on the steering wheel: Please check the covers on the rear for protrusion and, if necessary, remount. 1. Mask off openings on back of steering wheel with adhesive tape 1. Mark the back of the steering wheel with colored chalk (see Picture 1) 2. Mount steering wheel on steering column switch module and turn the steering wheel from left lock to right lock ten times. 3. The chalk will now have disappeared in the areas where there is rubbing (see Picture 2) Warning: Ensure that no cables and visible areas of the steering wheel are damaged. The abrasive excess material on the back of the steering wheel must be carefully removed with a Dremel tool. Tip: You will need to remove approx. 0.1 mm to 0.3 mm of material (example: Picture 3) Make sure that none of the ground-off material gets into the steering wheel. After removing the material, clean the entire back of the steering wheel with a 1% soap solution.

C-Class, CLA, CLS, E-Class, EQB, G-Class, GLA, GLB, GLC, GLE, GLS, AMG GT, S-Class (177, 205, 118, 257, 213, 238, 243, 463, 247, 253, 167, 290, 217, 222 platform) vehicles, the communication module system software does not correspond with the latest series production configuration. The communication module will receive an OTA update to improve the system stability and allow for better accessibility of Mercedes me services. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.

C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) vehicles, the communication module software does not correspond with the latest series production configuration. The update is free of charge and will be carried out in the background. The installation will eliminate software errors for a better entertainment experience. The update will show after the ignition has been cycled. MBUSA will conduct an OTA service campaign. A workshop visit for the customer is not required since remote software updates are automatically downloaded and installed in the customers vehicle. The OTA may be validated as successful on the customers Mercedes Me connect app under Over-the-Air Vehicle Updates as Update for the communication module. If the OTA is successful it will show a green installed and date of installation in the Over-the-Air update section.

The instrument cluster display will remain operational. - No audio is present from the sound system - MBUX multimedia system (A26/17) may not be shown on the initial quick test - Various other MBUX multimedia system (A26/17) related complaints Water ingress through the air vent under the front passenger seat (see attached, note that the vents are facing the rear of the vehicle). As a result, the head unit (A26/17) may become damaged. Inspect the MBUX multimedia system (A16/17) hardware, including all attached wiring and connectors, for traces of water and/or corrosion.

After the next ignition cycle, the ambient lighting functions again correctly. Cause Software in coupling elements (EKE) faulty. The coupling element software cannot be updated in After-Sales. Remedy In a complaint case, replace the respective wiring harness (coupling elements are installed on the wiring harness) for ambient lighting.

- Creaking - Squeaking - Chattering - Humming - Grinding Cause At present, there are no known noise problems with the steering column. Remedy Check surrounding area of the steering column for possible noises. - Instrument panel support - Steering column switch module If the cause of the noise can be narrowed down to the steering column, create a PTSS case

CLA-Class, GLA-Class, GLE-Class, GLS-Class, A-Class, C-Class, E-Class, GLB-Class, CLS-Class, and AMG GT 4-doors/Coupe (118, 167, 177, 190, 213, 238, 247, 257, and 290 platform). The possibility exists that the information regarding radar sensor MMRV1 may be incorrect, and therefore the printed operators manual may not align with the internal vehicle specifications. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check and replace the printed operators manual, if necessary.

Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM cannot record the data if the battery is discharged. Note: A discharged battery does not necessarily need to be replaced. A discharged battery may be recovered with no permanent damage. Remedy Follow guided tests as described.

- ESP - Service Required"

the steering column switch module cover, at the join with the bellows extension.

Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary, create a TIPS case with an informative video as an attachment. Note: Please refer to this document in the warranty claim and, once diagnosis is completed, select the damage code depending on the component part that is causing the issue. If the noise stops when the door trim is removed, please proceed in accordance with LI72.10P067691. Information: In this case, do not use a damage code for the speakers in the warranty claim!

Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary, create a TIPS case with an informative video as an attachment. Information: Please refer to this document in the warranty claim and, after completing diagnosis, select the damage code corresponding to the component part that caused the problem. If the noise stops when the door trim is removed, please proceed in accordance with LI72.10-P-067691. Information: In this case, do not use a damage code for the speakers in the warranty claim!

attachment) Head-up display permanently or sporadically unavailable - without warning message in driver display Display permanently or sporadically discolored and out of focus (see attachment) Cause Software for the A40/12 - Head-up display and N133/1 - Instrument cluster (IC) Remedy Software for the A40/12 - Head-up display and N133/1 - Instrument cluster (IC) is now available. Please update both control units. TIPS cases are no longer needed. Note that issues may still occur even after the software updates. Please do not replace any parts. We will inform you as soon as a solution is available. Note: Please do not replace any parts for this complaint. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.

REAR COMFORT PACKAGE (P08), the rear seat heating cannot be activated via voice control. However, the voice control erroneously provides feedback that the seat heating has been activated. Cause A26/17 - MBUX multimedia system (Head unit) software Remedy Software E604 (FUP6) corrects the erroneous feedback from the head unit regarding the activation of the seat heating. Important note: The feature "Activation of seat heating via voice control" is only available in vehicles with codes REAR SEAT ENTERTAINMENT (854/447/864) and 903 REAR COMFORT SEAT HEATING (903) or REAR COMFORT PACKAGE (P08) Availability: Software FUP6 is planned to be released in Q4 2025. Note: Please do not replace any parts for this concern.

ONLY for vehicles with SA code (549+21U) or (549+U19). Cause Head unit software variant. Remedy For all chassis use Xentry to update head unit (A26/17). Target boot software number should be either: 247 904 6600 (E905.4) OR 247 904 7500 (E906.1) If vehicle fits all criteria and either target software is not available via Xentry, please open an XSS ticket. Damage code 5424x-01 may be used with a repair start date after June 2nd, 2025.

REAR COMFORT PACKAGE (P08), the rear seat heating cannot be activated via voice control. However, the voice control erroneously provides feedback that the seat heating has been activated. Cause A26/17 - MBUX multimedia system (Head unit) software Remedy Software E604 (FUP6) corrects the erroneous feedback from the head unit regarding the activation of the seat heating. Important note: The feature "Activation of seat heating via voice control" is only available in vehicles with codes REAR SEAT ENTERTAINMENT (854/447/864) and 903 REAR COMFORT SEAT HEATING (903) or REAR COMFORT PACKAGE (P08)

multifunction display of the instrument cluster while driving (see picture in attachment). Cause On vehicles with HERMES 3.0 currently, A2389015700 A2389015800 A2389018400 A2389018900 A2389019000 A2389019800 A2579011200 A2579012100 The above-mentioned message is sporadically displayed in the instrument cluster once Remedy Please manually commission the control unit N112/9 (HERMES) using XENTRY: XENTRY "N112/9 - Control unit for telematics services (HERMES)" -> "Adaptations" -> "Control unit commissioning" -> "Commissioning of previously installed control unit" Invoice the required work using damage code 8251M/01 (damage location/damage type).

attachment) Head-up display permanently or sporadically unavailable - without warning message in driver display Display permanently or sporadically discolored and out of focus (see attachment) Cause Software for the A40/12 - Head-up display and N133/1 - Instrument cluster (IC) Remedy control units. If symptoms persist after the software update, please fill out the attached questionnaire and open a TIPS case. Note: Please do not replace any parts for this complaint.

Cause MBUX FUP5 software: E504.3 (A 297 904 97 00) E504.4 (A 297 904 03 01) Remedy Update of head unit A26/17 to the new software: FUP5 opt. E505.4 (A 297 904 05 01)

AMG GT, EQE, EQS, G-CLASS, GLB, GLC, GLE, GLS, S-CLASS, AMG SL (206, 118, 243, 290, 192, 294, 295, 296, 297, 465, 247, 254, 167, 223, and 232 platform) vehicles, the MBUX multimedia system does not correspond with the latest series production configuration. The MBUX multimedia system control unit will receive an OTA software update. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.

control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is active or active+saved. In vehicles with "N112/9 - control unit for telematics services (HERMES)": The message "SOS - service not activated" permanently lights up in the instrument cluster AND the actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/9 - control unit for telematics services (HERMES)", the registration error "CEP Invalid VIN/UniqueID combination" is displayed. In vehicles with "N112/2 - control unit for telematics services (RAMSES)": The actual value "Error when replacing certificate (CEP.36)" is displayed in the actual values for the activation status under "Registration status" (see picture 1). In the control unit log of the "N112/2 - control unit for telematics services (RAMSES)", the registration error "CEP_ VIN_UNIQUEID_INVALID" is displayed. The emergency call is not impaired. Cause In the event of a control unit replacement, sporadic problems in the back end could result in data from the new control unit not being updated in the back end system. Remedy Please create a TIPS case. In some cases, the problem rectifies itself on its own after a little while.

Cause MBUX FUP5 software: E504.3 (A 297 904 97 00) E504.4 (A 297 904 03 01) Remedy The remedy is currently being developed.

display permanently or sporadically unavailable - without warning message in driver display Display permanently or sporadically discolored and out of focus Cause Previous N133/1 - Instrument cluster (IC) control unit software. Remedy Update the N133/1 - Instrument cluster (IC) software.

"Perform vehicle handover" in the workshop menu to start the maintenance computer for service A/B cannot be carried out. 2. Service confirmation is not possible because "Perform vehicle handover" is displayed. This cannot be carried out. Routine change in software in instrument cluster N133/1. Vehicle handover has not taken place. First manually commission the already installed instrument cluster control unit N133/1 and then perform the special procedure to re-initialize ASSYST data in powertrain control unit N127. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.

E-Class, EQB, GLA, GLB, GLC, GLE, GLS, AMG GT (177, 118, 257, 213, 238, 243, 247, 253,167, 290 platform) vehicles, the head unit software does not correspond to the current series production configuration. The head unit will receive an OTA update to optimize the "Live Traffic Information" service for the navigation system. Additional product improvements including infotainment system robustness will be implemented. The software update will be downloaded in the background. The subsequent installation takes roughly 45 minutes and requires the customer's consent in the vehicle. During installation, the system can be used without restriction. The new software will be active after the vehicle has been switched off. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.

The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an extended period of time; the message then disappears of its own accord after a few minutes. No functional limitation to the emergency call system is to be expected. Software error in N112/9 control unit for telematics services (HERMES). Software update for control unit N112/9 - Control unit for telematics services (HERMES) to software release E522.8. If, against expectations, the erroneous display of the message in the instrument cluster continues to occur following the update, please create a TIPS case.

C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and 223 platform) vehicles, the head unit software does not correspond with the latest series production configuration. The update is free of charge and will be carried out in the background. The installation will eliminate software errors for a better entertainment experience. MBUSA will conduct an OTA service campaign. A workshop visit for the customer is not required since remote software updates are automatically downloaded and installed in the customers vehicle. The OTA may be validated as successful on the customers Mercedes Me connect app under Over-the-Air Vehicle Updates as either Software Update MBUX 2.4 or Software Update Hermes 1.5 E522.8. If the OTA is successful it will show a green installed and date of installation in the Over-the-Air update section.

Temperature setting in Mmc mobile application settings incorrect Remedy Adjust the setting in the Mercedes me connect app via mobile phone (settings -> units)

Stations" or a different category. Sometimes, the "My Favorites" category will be unavailable for the entire drive cycle. Cause Current MBUX Multimedia System (A26/17) software release Remedy Software update of MBUX Multimedia System (A26/17) to E905.4 (in development). This document will be updated once the software is released.

show the following message: "Map data does not match with your system. Please insert a medium containing the corresponding map data". the navigation menu cannot be opened "Activating..." is displayed beneath the navigation icon in the main menu or above the map display "Traffic Sign Assist Inoperative" message in the instrument cluster display The map data update cannot be carried out (on vehicles with code 2U0 car2go) Cause Navigation database was not successfully activated Remedy Perform the proposed measure in order to remedy the complaint: Ensure the MBUX multimedia system (A26/17) software is up-to-date (E870.9 or newer) Perform a user data reset ("Settings" -> "System" -> "Reset" in the MBUX display). Check functionality. If the complaint remains then continue with next steps Open the Dealer menu by pressing and holding down the "Home" and "Radio/Media" buttons simultaneously for approximately 8 seconds When in the Dealer menu, select "Navigation" - Then select "Delete MapData" Close the Dealer menu and reinstall the currently available NTG6 map data version from Download Manager COMAND/Hard-Disk navigation via USB Perform SCN coding of the MBUX multimedia system (A26/17) Check navigation functionality

(177 platform), CLA-Class (118 platform), CLS-Class (257 platform), E-Class (213 and 238 platform), GLA-Class, GLBClass (247 platform), GLC-Class (253 platform), GLE-Class, GLS-Class (167 platform), and GT-Class (290 platform) vehicles, the software for the MBUX control unit does not correspond with the latest series production configuration, and subsequently, navigation may not be available. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the MBUX control unit software.

Please insert a medium containing the corresponding map data". the navigation menu cannot be opened.

while attempting to communicate with the MBUX multimedia system (A26/17)

Cause Under analysis. Remedy Neither of the two event codes is relevant for the functioning of control unit IDC213 - N62/4 (Intelligent Drive control unit) and can be ignored.

microfiber - black (601A)" the material of the seat side bolster can tear. Both the seat cushion cover and the backrest cover on the front seat can be affected here. Cause The material may tear because the material in the side bolster is not suitable. Remedy Optimized seat covers are now available for ordering with new part numbers. Some supply constraints may exist during initial roll out.

customer from the Mercedes me Portal

ordered.

For vehicles equipped with "ARTICO man-made leather upholstery/DINAMICA microfiber - black (601A)", please create a PTSS case straight away.

Only occurs if the seat backrest of the second seat row is folded over (video point 1). 2. Front seat backrest adjusts to the vertical position when the front seat is adjusted backwards (fore/aft adjustment). Only occurs if the seat backrest of the second seat row is folded over (video point 2). 3. Front seat moves forwards (fore/aft adjustment) when the seat backrest of the second seat row is folded over or the Easy Entry and exit feature is activated for the third seat row (videos point 3). 4. Front seat can no longer be adjusted backwards (fore/aft adjustment) when the second seat row is folded over.

The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened. See also LI33.20-P-078406 Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove side shafts 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") with Molykote and leave to dry for "one hour" in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened. See also LI33.20-P-078406 Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove side shafts 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") with Molykote and leave to dry for "one hour" in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

50 mph in instrument cluster. "i" - Fault code "ERR_INF2_CORE2CORE_COMM_FAILURE" = true is stored in the quick test and/or current. Cause Communication fault between electrohydraulic suspension component parts through out-of-date software (application software and bootloader software). Remedy With the latest hardware item number for the electrohydraulic pump units A167 901 62 03, the new application software A167 902 31 12 and the new bootloader software A167 904 18 01 have to be flashed.

software and bootloader software). Remedy With the latest hardware item number for the electrohydraulic pump units A167 901 62 03, the new application software A167 902 31 12 and the new bootloader software A167 904 18 01 have to be flashed. With older hardware item numbers, please open a PTSS case.

GLS-Class (167 platform) vehicles, the electrohydraulic suspension may not meet current specifications. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform a leak test on the electrohydraulic suspension and replace the hydraulic pumps, if necessary.

80 km/h

GLE-Class and GLS-Class (167 platform), the front and rear stabilizers do not correspond to the current series production configuration. If the plastic on the stabilizer housing were to tear, a fault message would appear in the instrument cluster and the dampers would be set to the hard setting. In addition, related noises may be perceived while driving. What We?re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check the front and rear active roll stabilizers on the affected vehicles and replace them if necessary.

existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, June 11, 2026. After June 11th, returns of these parts will no longer be accepted. These parts should be returned via ZSR Special Return, using item category SCM Authorized Part Return. Please include a copy of this NCU as your authorization to return these parts. This procedure will not affect your return allowance. All returned parts will be replaced in accordance with the chart provided below.

The deadline for all dealer returns is no later than Thursday, June 4, 2026. After June 4th, returns of these parts will no longer be accepted. These parts should be returned via ZSR Special Return, using item category SCM Authorized Part Return. Please include a copy of this NCU as your authorization to return these parts. This procedure will not affect your return allowance. All returned parts will be replaced in accordance with the chart provided below.

interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: It is recommended to replace the cover caps. The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.

interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21) in the headliner. C. Dirt inside the microphone housing Remedy 1. Press finger on rear of microphone (on adhesive tape) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones (B25/20 and B25/21) Note: It is recommended to replace the cover caps. The non-woven cloth in the cover cap protects the microphone from soiling and must not be removed. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicles warranty in any way.

EQE, EQS, GLA, GLB, GLC, GLE, GLS, GT, S-Class, and SL (118, 167, 192, 206, 223, 232, 243, 247, 254, 290, 294, 295, 296 and 297 platform) vehicles, the MBUX system software does not correspond with the latest series production configuration. The MBUX system will receive an OTA update that includes general product improvements and robustness enhancements for a better entertainment experience. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customers vehicle free of charge and do not require a dealer visit. No customer letter will be mailed for this OTA software update.

CLS-Class, E-Class, GLA-Class, GLB-Class, GLC-Class, GLEClass, GLS-Class, and AMG GT (177, 118, 257, 213, 247, 253, 167 and 290 platform) vehicles without the augmented reality camera (ARC), as disclosed at the time of sale to the vehicle purchaser. As a result, the ARC and "Dash-cam" functions are currently not enabled. What Were Doing MBUSA will conduct a Service Campaign where an authorized Mercedes-Benz dealer will retrofit the ARC to the vehicle and enable the ARC and Dash-cam functions on applicable vehicles.

E-Class, GLA-Class, GLB-Class, GLE-Class, GLS-Class, and GT-Class (167, 177, 213, 247, 257, and 290 platform) vehicles without the augmented reality camera (ARC), as disclosed at the time of sale to the vehicle purchaser. As a result, the ARC and "Dash-cam" functions are currently not enabled. What Were Doing MBUSA will conduct a Service Campaign where an authorized Mercedes-Benz dealer will retrofit the augmented reality camera to the vehicle and enable the ARC and Dash-cam functions on applicable vehicles.

E-Class, GLA-Class, GLB-Class, GLE-Class, GLS-Class, and GT-Class (167, 177, 213, 247, 257, and 290 platform) vehicles without the augmented reality camera (ARC), as disclosed at the time of sale to the vehicle purchaser. As a result, the ARC and "Dash-cam" functions are currently not enabled. What Were Doing MBUSA will conduct a Service Campaign where an authorized Mercedes-Benz dealer will retrofit the augmented reality camera to the vehicle and enable the ARC and Dash-cam functions on applicable vehicles.

Cause An internal control unit fault led to the specified fault codes. Remedy Replacement of CAIRS unit 51/8 does not remedy the problem. Perform AIRMATIC software update on R24.

In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy In advance, observe LI82.10-P-078301 "Headlamp/front fog lamp leaky or fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. If the headlamp exhibits any external damage, replace the headlamp. Note: A headlamp with external damage is not a warranty or goodwill case. 2. Leak test of headlamp with overpressure: Connect test adapter to pressure tester. (Figure 1) Check test adapter for leak tightness. To do so, connect plug and coupling (Figure 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (Figure 3). (Figure 4) Make allowance for the different headlamp variants here (there are different outlet openings). Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. Plug the adapter onto the diagnostic socket on the headlamp housing. (Figure 5). Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged. If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is tight and there is natural physical condensation If a higher pressure drop than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. Replace any leaky headlamps. Desiccant packs can be installed for headlamps that are not leaky. Observe the following documents for installation of desiccant packs: LI82.10-P-078302 Fogged headlamp, desiccant pack installed - open ventilation system LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system

Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose cannot be snapped into place on pump fitting. 3.4. Washer fluid hose will not stay on pump fitting, although connector OK. 4. Washer fluid line. 4.1 Connector will not stay on pump fitting because it is broken. 4.2 Sealing ring in connector missing. 4.3 Sealing ring in connector fitted, but deformed and therefore leaks. 4.4 Damage to washer line by animal. 5. Seal on heating washer fluid reservoir/washer fluid reservoir. Remedy Replace defective component parts only. Do not replace any adjacent component parts that are intact. Note: Repair kits for washer line hoses do exist to allow patches for line damage.

In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy In advance, observe LI82.10-P-078301 "Headlamps or Front Fog Lamps Leaking or Fogged". 1. Prepare headlamp/check for external damage: For headlamps with a closed system 1. Check the headlamps for any external damage and check also for correct seating of the Gore-diaphragm/correct latching of the cover caps. 2. If the headlamp exhibits any external damage, replace the headlamp. For headlamps with an open system 1. Check the headlamps for any external damage and seal off the vent then make sure the cover caps are latched correctly into place. 2. If the headlamp exhibits any external damage, replace the headlamp. Note: A headlamp with external damage is not a warranty or goodwill case. 2. Leak test of headlamp with overpressure: Connect test adapter to pressure tester. (Figure 1) Check test adapter for leak tightness. To do so, connect plug and coupling (picture 2) and apply a maximum overpressure of 30 mbar. The pressure must remain constant. If the pressure does not remain constant, use a new adapter. Seal all the outlet openings using sealing compound and the given diaphragm with the plunger (picture 3). (Picture 4) Make allowance for the different headlamp variants here (there are different outlet openings). Check if the headlamp needs to be removed to gain access to the diagnostic socket on the headlamp housing. Plug the adapter onto the diagnostic socket on the headlamp housing. (Picture 5). Apply a maximum of 30 mbar overpressure to the headlamp housing. Note: If the maximum overpressure of 50 mbar is exceeded the headlamp seal will be damaged. If a pressure drop of less than 10 mbar is measured within 30 seconds, the headlamp is not leaky and the problem is down to natural physical fogging. If a pressure drop of more than 10 mbar is measured within 30 seconds, the headlamp is leaky. Note: The leaky position can be localized with the aid of soap suds. Replace any leaky headlamps. Note: Desiccant packs can be installed for headlamps that are not leaky. See: LI82.10-P-064766 Fogged headlamp, desiccant pack installed - open ventilation system LI82.10-P-078304 Fogged headlamp, desiccant pack installed - closed ventilation system

Cause Gesture recognition system control unit software N168 Remedy For vehicles before modification year 23/2: A remedy is currently being developed. Replacing parts will have no effect. For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be possible in future.

Sealing lip of inner sealing rail, see Picture 1 and Picture 2, pos. 90, folds down while side windows are being lowered (opened). When the side windows are raised (closed), the sealing lip is pulled back up again. Replace inner sealing rail. Then perform normalization of the window lifter system in the relevant door control unit. Note: For this complaint, no other surrounding component parts, such as outer sealing rails, Picture 1 and Picture 2, pos. 70, window lifter components or door control units, must be replaced or flashed. Please note the following: If the problem on a vehicle occurs outside the valid production date, please create a TIPS case with the following contents: 1. Make a video of the problem of the inside of the door in the area of the inner sealing rail, and pull the upper lip of the inner sealing rail to one side while doing so and check to see if the lower lip is folded over, for example, see picture 1. 2. Details on environmental conditions in a problem case (temperature, dry or wet) 3. Pictures of inner sealing rail when removed: Both mounting face lips towards the glass Any visible damage on the inner sealing rail

Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead.

236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (PNs: A002989060312 and A002989060313) bottles are out of stock or in limited supply at Zep. This LI has been created with the following intention: - Provide dealers with additional workshop-focused guidance regarding the current ATF 236.17 supply constraint and the planned introduction of ATF 236.18. - Supplement existing communications and address common workshop questions related to maintenance, repairs, and fluid applicability. - Provide technical clarification and practical workshop guidance during the temporary supply constraint period. Dealers should continue to reference the latest News Channel Updates (NCUs) for the most current information regarding availability, ordering processes, supply status, and other related updates. Cause Damage to the Shell production facility has resulted in 236.17 oil supply being reduced to 50% of normal output until the end of 2026. Remedy Please first check Latest NCU updates for latest detailed information. Please continue placing orders through Paragon as normal. Supply is expected to remain reduced and allocation measures are currently in place. We ask for your patience through this restricted supply period. Most orders will be filled in the order in which they were received, as supply is replenished. Those dealers with zero inventory, and pending orders, will receive priority. We expect supply to be stabilized in September 2026. Approved Fluids: Only use transmission fluid from the approved list found on the Mercedes-Benz Operating Fluids website. Non-approved fluid will result in mechanical damage to the transmission and must be avoided. https://operatingfluids.mercedes-benz.com/sheet/236.17 Approved fluids can be claimed as follows if there is no Mercedes-Benz part number: Part # ATFSUB1L - TRANSMISSION FLUID 1 LITER ATFSUB5L - TRANSMISSION FLUID 5 LITER Dealerships with Zero Inventory AND Grounded Vehicles: If a vehicle is currently grounded for repair at your dealer due to no 236.17 inventory, we may be able to expedite your order. Please open a StarSupport ticket including the following information: (Parts Related Inquiry>National Accounts>Zep) LI document number Short explanation of repair needed for grounded vehicle Current days down of RO Maintenance and Service Interval Guidance Published maintenance intervals remain unchanged. Vehicles should continue to be maintained in accordance with the applicable maintenance schedule. This LI does not revise or extend any published maintenance interval requirements. If all required parts and materials are not available prior to scheduling or beginning a transmission service, dealers should consider postponing routine preventative transmission maintenance until the necessary parts become available. For vehicles that have not yet reached the applicable maintenance interval and do not exhibit transmission-related concerns, there is no need to recommend preventative transmission services prior to the scheduled maintenance interval. When evaluating whether routine transmission maintenance can be deferred until parts become available, dealers should consider: Overall vehicle condition Vehicle usage and operating conditions Presence of transmission-related symptoms or customer complaints Customer expectations and vehicle operating requirements Availability of required parts and materials Introduction of New Fluid Specification 236.18 Mercedes-Benz is currently preparing the introduction of ATF 236.18 as an additional approved transmission fluid solution for applicable NAG3 transmissions. At the time of publication of this LI, ATF 236.18 is not yet available for dealer ordering or workshop use in the U.S. market. See attachment for further details.

The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts

No camera image is displayed in the head unit. The reversing camera or the 360 system functions normally when activated manually or by engaging drive range "R". Cause This is not a malfunction, but an intended system behavior. Calibration of the reversing camera is in progress. The calibration is completed by: Opening the camera cover for a maximum of 5 cumulative minutes. If the vehicle speed is < 35 km/h (<22 MPH). The steering wheel angle is < 10. If calibration is aborted by exceeding one of the above conditions, the camera retracts and the calibration will re-attempt once the conditions are achieved and the speed returns to the range of 18 km/h (~11 MPH). Remedy SCN code PARK213M on MFA2 facelift vehicles produced after 09/2024 (A-Class, CLA, GLA, etc...) so the complete calibration speed window is available. For vehicles with PARK213M or PARK223 a calibration is completed successfully by: Driving forward (typically less than 1 minute). Vehicle speed is < 35 km/h (<22 MPH). The steering wheel angle is < 10. During daylight. Without a vehicle following too closely (camera must be able to see asphalt). When calibration has completed successfully, the camera door closes automatically for the rest of the driving cycle. The camera will now only open if the customer requests (Example: Engaging reverse gear). The calibration of the camera will re-initiate every drive cycle (ignition change). The customer can generally perform calibration at the first attempt while briefly maintaining a speed range of 15 km/ h (~9 MPH) and 35 km/h (~22 MPH). The customer can therefore play a significant role in reducing the camera door noise and actuation frequency.

The clunk is heard once when changing from forward to reverse (and vice versa). Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the side shaft. Note: The collar nut must always be replaced after being loosened and must be tightened to the specified torque. Remedy Coat contact surface of side shaft with wheel bearing with Molykote paint. To do this, proceed as follows: 1. Remove outboard side shafts (extract outer joint gearing from wheel hub) 2. Clean contact surface A (see image file in attachment "Outer joint housing before") before coating with Molykote, using "spirit" (free of dust and grease) 3. Coat contact surface A (see image file in attachment "Outer joint housing after") using Molykote and leave to dry for one hour in removed condition 4. Reinstall side shafts Note: Before using the antifriction coating (Molykote), stir it or shake it thoroughly for (at least 1 minute).

and 725.1 (NAG3 facelift/9G-TRONIC automatic transmission facelift) For faster, more effective and more targeted diagnosis, Intelligent Predictive Repair (IPR) has been developed and integrated into XENTRY Diagnosis. This ensures an automated diagnosis process. Cause As part of the on-going quality monitoring process and associated quality and damaged part appraisals, a high number of ineffective repairs have been discovered. Such ineffective repairs have a negative impact on all those involved. For the customer, it means high costs and long repair times and for the dealer, it may result in the warranty claim being rejected. Remedy General note: IPR is available for: NAG3 Classic (automatic transmission 725.0) NAG3 - AMG sports models (AMG 43 and AMG 53 with converter) NAG3 - AMG 63 NAG3 - Hybrid

with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Steering column height adjustment transmission 2. Seat control unit software Remedy There are 2 repair procedures to follow depending on vehicle (differentiated according to model and vehicle manufacturing date) 1. Replace repair kit for steering column height adjustment 2. Perform software update of driver's seat control unit

Normalization cannot be performed in its entirety using XENTRY Cause Under analysis Remedy *Make sure a battery charger is connected to vehicle while performing all testing* Please perform the following checks that help to resolve most concerns: #1 - Make sure seat control units have latest software installed on them. #2 - For seat folding concerns, pay careful attention to the lock mechanism and ensure it is fully releasing. If the locking mechanism is short-stroking, please replace associated Bowden cables. #2a - Seat folding concerns can also be related to binding of the seat frame. To remedy, loosen torque off bolts holding seat frame to car. Shift seat frame and ensure there is no binding. Re-torque bolts securing seat frame to car and re-test. #3 - For seats showing unlocked in the IC when fully locked, please check seat frame carefully for small microswitches that can be damaged. #4 - For seats moving forward but not folding upward (2nd row), please ensure the 4 small clips are still located on the inner and outer rails of the seat. If they are broken (example being passenger kicking them), the seat will not fold up. If seat concerns are still not resolved, please create seat control unit logs N32/5 and N32/6 and submit them along with information of initial checks via a PTSS case.

NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration is most likely due to excessive lateral runout on the rotor or hub/wheel bearing, the system as a whole needs to be checked for other possible contributors. 1. Prior collision damage. 2. Excessive vehicle sitting times without rotating components. 3. Wheel bearing/hub lateral runout. 4. Wheel mating interface has been overtightened (did not follow WIS torque procedures). 5. Mating interfaces have been excessively modified (painted, gouged, bent, etc...). Remedy Read through the entire attached worksheet prior to performing. After performing, please review the final page and perform work accordingly. NOTE: This document is not preauthorization or otherwise dealing with warranty. This is intended for diagnostic purposes only. If there are any questions on how to proceed OR The work sheet has been performed and the vehicle has returned with the same concern. Please perform the measurements as seen in the worksheet again and open a TIPS case to the Body, Chassis, and Entertainment team.

or a message in the instrument cluster "ESP, ABS failed". Cause Anti-cracking disk at the external joint of the side shaft at the rear axle is broken. Remedy Customer complaint due to noises: A test drive must be performed. For a precise noise analysis (localization of the noise), make use of the NVH/PICO. If the joint of the side shaft can be clearly identified as the cause (source of the noise), the following work must be performed: 1. Remove the side shaft, check the anti-cracking disk, and remove the anti-cracking disk if it is broken, 2. then process the external joint as per LI35.30-P-058566 and reinstall the side shaft. After the processing is complete, an anti-cracking disk is no longer required. Customer complaint due to display message "ESP, ABS failed" in the instrument cluster: Read out the fault memory; if a rotational speed sensor of the rear axle is stored in the fault memory, the following work must be performed: 1. Check the rotational speed sensor of the affected side for damage and replace if necessary. 2. Remove the side shaft, check the anti-cracking disk, and remove the anti-cracking disk if it is broken, 3. then process the external joint as per LI35.30-P-058566 and reinstall the side shaft. After the processing is complete, an anti-cracking disk is no longer required. Note: It is not necessary to replace the side shaft.

The driver assistance systems are temporarily unavailable. Note: Please note the listed fault code! Cause Rarely, it may be the case that communication is interrupted due to a brief interruption in the power supply to the LRR (B92/12) or A108 (Active Brake Assist). Remedy Perform new SCN coding at BC_R (N10/8).

Cause A setting on the iPhone may prevent control via the touchpad Remedy To remedy on the affected iPhone, navigate to "Settings" -> "Accessibility" -> "Touch" and turn the "BackTap" option OFF.

mode and drive vehicle for approx 6mi. The DTC then switches to passive and the sensor can be calibrated

cluster messages along with Tire Pressure Light on in Instrument Cluster. Cause Both systems are temporarily unavailable due to low tire pressures. An active tire pressure monitor light may result in some assistance features being temporarily unavailable until tire pressures are corrected. Remedy Check/adjust tire pressures and reset monitoring through the instrument cluster.

with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams.

with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. Remedy There are 2 repair procedures to follow depending on vehicle (differentiated according to model and vehicle manufacturing date) 1. Replace repair kit for steering column height adjustment 2. Perform software update of driver's seat control unit

Remedy: Update software for steering wheel electronics control unit ("N 135 - Steering wheel electronics (LRE)"). Should the quick test carried out after the software update still show DTCs with the steering wheel heater and/or Distronic, replace the steering wheel control panels

Noises when driving in a straight line on rough terrain 3. Noises when cornering and performing alternate steering movements 4. Non-assignable noises

GLE-Class (167 platform) vehicles, the SCN coding of the ESP control unit may not correspond to the current production specification. It is possible that no live data of the ESP control unit is sent to the OBD. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will perform SCN coding in the electronic stability program control unit.

with one of the following scenarios: Flashing without a speed limit ("- -"). Flashing when current vehicle speed is under speed limit. Flashing between US speed limit symbol and European speed limit symbol. Cause Under Investigation Remedy Under investigation. One option is to turn off Traffic Sign Assist until the investigation is completed. Once completed this LI will be updated. No TIPS case is necessary. Do not replace parts.

If not exactly as listed below, there is no need to create a TIPS case referencing this LI unless further assistance is needed outside of this document. Conditions Instrument Cluster Message: "Park Assist Inoperative" and Hardware part numbers: A0009019716 or A0009016022 B223263 with Bosch-ID C259; A+S (Active and Stored) and B223255 with Bosch-ID 1B5D; A+S (Active and Stored) Notes: Other DTC's are permitted but the above three conditions must be met. If they are not met, this LI is not applicable. See attachment "LI Criteria" for an example. Attachment portrays a quick test with non-matching criteria and therefore does not require a TIPS case. Cause Under analysis. Remedy Please do not make any attempts to repair the park control unit. Do not flash or SCN code. Open a TIPS case.

periods of time (pressure marks). Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). Light initial creases due to vehicle handling. Light creases in the outer covers originating from the production process (missing finish). Heat treatment of the seat covers using heat gun and plastic wedge. Be very careful to not overheat the seat material!

Cause Sheet metal sections in the area of the roof frame, C-pillar (inner) could cause noises due to tension or contact of the sheet metal. Remedy 1. Remove the headliner and detach the head airbag in the working area. 2. Park vehicle in the sun/heat and allow it to warm up. 3. Then perform a test drive; the noise complaints must be reproducible. 4. Insert a flat head screwdriver through the body-in-white opening in the upper area of the roof frame at a flat angle to the side wall until resistance is met. 5. Check that the correct position has been reached, i.e. that the screwdriver has made contact at the two sections of sheet metal causing the noise in front of the caulking. 6. Work on the noise-causing sheet metal sections through the seam in order to separate them. 7. Perform a test drive and check the effectiveness. 8. Perform the anticorrosion protection in the working area according to manufacturer specifications. 9. Install remaining parts.

GLE-Class and GLS-Class (167 Platform) vehicles, the supplementantal restraint system ("SRS") control unit software does not correspond to the current production specification. All regulatory specifications are nevertheless met and a potential safety relevance can be be ruled out.

2020-2021 CLA-Class (118 platform), GLE/GLS-Class (167 platform) vehicles, the Vehicle Emission Control Information Label may not correspond to the certified classification. What Were Doing MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will replace the Vehicle Emission Control Information Label on the affected vehicles.

Cause 1. The integrated garage door opener (GDO) is not compatible with the opening system installed in the garage. 2. The garage door drive uses a rolling code system. In contrast to the fixed code system, the LED in the mirror in this case flashes green after programming. 3. When the handheld remote control is initialized with the integrated GDO, the distance between the handheld remote control and the GDO is too long or too short. 4. The maximum programming time of the hand transmitter was exceeded. The hand transmitter switches itself off after 10s to 20s. However, the garage door opener needs up to 30s to learn the code. 5. The maximum programming time of the integrated GDO was exceeded. The integrated GDO has aborted programming unsuccessfully. 6. The GDO cannot be programmed after replacement (See #9). 7. The batteries of the hand transmitter are too weak. 8. A part of the signal was not registered correctly. 9. The GDO is not programmed to US standards. 10. Errors with Chamberlin MyQ, Liftmaster MyQ, or Craftsman AssureLink systems causing loss of synchronization. Remedy Note: The numbering of the remedies refers to the numbering of the causes. 1. Installation of a universal receiver. Order via the Homelink Hotline. 2. In the case of garage door drives with rolling code system, synchronization of the garage door drive must also be performed. 3. Keep the correct distance when initializing! This can vary between 5 and 20 cm depending on the system. If the initialization attempt is unsuccessful, repeat the initialization process, changing the distance between the hand transmitter and the mirror.

2020-2022 A-Class, C-Class, CLAClass, GLA-Class, GLB-Class, GLC-Class, GLE-Class, and GLS-Class (118, 167, 177, 205, 247, and 253 platform) vehicles, the mobile phone cradle control unit software does not correspond to the current series production specifications. It is therefore possible that the inductive charging function may not work as intended. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the mobile phone cradle control unit software.

GLE-Class and GLS-Class (167 platform) vehicles equipped with Michelin-branded tires, the maximum tire pressure shown on the B-pillar vehicle placard, may be higher than what is permitted by the manufacturer. Michelin states a maximum tire pressure of 300 kPa (44 PSI) for the originally supplied rear tires. The vehicle placard may list tire pressure at 320 kPA (47 psi), however, operation of the tires with a tire pressure as specified has no effect and will not lead to any impairment of the handling characteristics. What Were Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will check and replace the B-Pillar vehicle placard, if necessary.