2026 Mercedes-Benz S 580 4Matic TSBs

Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: 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 doubleclicking on the button instead. This reduces the likelihood of the button being activated accidentally or unintentionally. The recoding can be carried out as follows: 1. Add SA Code O19 into VeDoc (O for Oscar, not "zero") an XSS ticket may be necessary to add the SA code 2. Perform SCN coding of EIS N73 control unit 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 in the storage compartment on the key symbol and turn on the ignition. IMPORTANT: all other vehicle keys must be outside the recognition range 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 the "Lock button" As of modification year 22/1, by press and holding the Lock button", then doubleclick the Unlock button" at the same time. On model series 167, the storage compartment with the key symbol is located in the armrest. The SCN coding from the EZS is only transferred correctly to the vehicle key under the following conditions: Only one vehicle key is located in the vehicle, this key has been deactivated and it is positioned on the marking in the storage compartment for the data transfer. The costs for this adaptation are to be borne by the customer. For the newer BR 174, 178, 244, 248, 520, and 540, a software update must be initiated, as there is no way to perform SCN coding.

CarPlay over Wi-Fi Audio cuts out Device not recognized No operation possible Cause There are multiple possible causes for an iPhone disconnecting from a vehicles head unit while using Apple CarPlay. These include hardware, software, and environmental factors: Environmental Interference External Sources: Passing under toll bridges, driving near airports, or areas with heavy electronic interference (e.g., as described in LI82.85-P-076157) can cause connection drops. Cellular Networks: Interference from nearby cell towers operating on similar frequencies (usually 2.4GHz or 5GHz) can disrupt the signal. Storage Location: Keeping your phone in a handbag or surrounded by other objects inside the vehicle can create physical or electronic interference. Device and Software Issues Head Unit Software/Hardware: Outdated firmware, bugs, or hardware faults in the vehicles head unit can prevent a stable connection. iPhone Software/Hardware: Similar issues in the iPhone, including buggy iOS updates or hardware problems, may affect performance. Reset or Reboot: Automatic rebooting or resetting of either the head unit or the iPhone will temporarily disrupt CarPlay. Connection and Settings Wired Connections: Faulty Cable: A damaged or poor-quality USB cable can cause intermittent or total loss of connection. USB Port Issues: Dust, debris, or physical damage in the USB port of either the head unit or the iPhone can also lead to disconnects. Wireless Connections: Intermittent Bluetooth/Wi-Fi: Unstable wireless communication (Bluetooth/Wi-Fi) can frequently break the Car- Play connection. Power Management: Battery Saver Mode: Enabling low power mode may restrict background processes, affecting CarPlay. Vehicles Electrical System: Unstable power delivery from the cars battery or electrical interruptions can cause the head unit to malfunction. Phone & App Configuration Phone Settings: Incorrect or conflicting settings (especially Bluetooth or Wi-Fi) on your iPhone can interfere with the CarPlay link. Third-Party Apps/Profiles: Installed apps or configuration profiles may conflict with CarPlays operation. Native apps are apple maps, apple music, audio books, apple news, podcasts, messages and phone. All other apps are considered third party apps. App Conflicts: Running conflicting apps that require similar system resources as CarPlay can cause instability. Mobile Data Plan: Streaming from online sources without sufficient mobile data can result in lost connectivity. Other Factors Heat & Overheating: If either the phone or the head unit overheats, they may disable certain functions to prevent damage, leading to disconnection. User Actions: Accidentally disconnecting the device in settings, or physically moving or bumping the phone or cable, may disrupt the connection. Remedy FUP6 (E605.8) software has been released for the following chassis: 118, 177, 243,247,206,254,167,294,295,296,223, 297. Flash available software for the head unit and test for function. The LI will be updated once available for the remaining chassis. If the complaint remains after the SW update please continue with the steps below. Guided Diagnostic Path for Apple CarPlay Connection Issues: Please follow the steps below to systematically diagnose and resolve CarPlay concerns:Update Devices: Ensure the iPhone is updated to the latest available iOS version. Ensure the vehicles head unit is updated to the latest software version available. Isolate the Issue: Check whether the symptom persists with another iPhone running the latest iOS version. Test both wireless and wired CarPlay connections: Does the issue only occur with wireless CarPlay? Does the wired connection to the phone function correctly? Further Troubleshooting Steps: Reboot the iPhone. See attachment for further instructions.

One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics. Cause Various root causes Remedy See attached diagnostic guide.

implausible (>365 days) for the following conditions: for the date of the vehicle handover or the last conducted and confirmed Service A/B Cause Case 1: Observe the following on vehicles with a disconnected on-board electrical system battery (12V/48V): The period in which the on-board electrical system battery is disconnected cannot be counted by the maintenance computer. As soon as the on-board electrical system battery is connected again, the maintenance computer automatically starts counting without making a correction to the remaining time (days until the next service). Case 2: If a disconnected on-board electrical system battery (12V/48V) can be ruled out as the cause, it is possible that: The daily turnover counter inside the electronic ignition lock (EIS) has experienced memory loss. This anomaly was detected in the EIS software from modification year 2022 onward. To do this, please check the plausibility of the daily turnover counter as follows: If "TUSZ Assyst Plus" < the actual days since "Handover Date/DAY/Month/Year," then proceed to remedy for case 2. Information: A variation of 2-3 days is still considered plausible. If "TUSZ Assyst Plus" is plausible, or if a remaining time of 365 days is permanently displayed, check whether the vehicle has been handed over. These types of cases have different causes. (The respective values are included in the maintenance data in the control unit log of the instrument cluster). Remedy For case 1: When the on-board electrical system battery is disconnected, this period must always be taken into account for these vehicles, and the following condition must be met for a correct calculation to be made: (A): The number of days from the "date of vehicle handover or last service A/B" to the "date on which the vehicle arrived at the workshop." (B): Remaining time (days until the next service, as shown in the instrument cluster). (C): Days on which the on-board electrical system battery was disconnected. The formula requires the following condition to be complied with. 365 - (A) [days] = (B) - (C) [days] For case 2: If the on-board electrical system battery (12 V/48 V) was not disconnected and the remaining time shown in the customer or workshop menu on the instrument cluster (days until the next service) is implausible in terms of the date of the vehicle handover or the last performed and confirmed service A/B, or the condition in the formula was not met, the service can still be performed and confirmed. For vehicles arriving more than 90 days after the service due date, the DSB service history can only be corrected by re-entering "Vehicle regularly serviced." A software fix for the EIS (electronic ignition lock) is currently in planning. The objective is to have a remedy available for 2026. Until the remedy is available, it is advisable to inform the customer that the next service is due again after 365 days at the latest.

- 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 NOTE: Occasionally to verify complaint, the steering column/vehicle needs to be in direct sunlight or hot conditions for a few hours. If noise only occurs when adjusting the steering column via electric actuation, please perform: 1. Disassemble bellows of steering column tube module. 2. Move steering column entirely out and entirely down. 3. Grease steering column on all pivot points including, but not limited to, green-marked positions with a suitable brush (find pictures in attachment). 4. Move column up 1/4 of the way and grease again. 5. Continue until upper limit stop is reached. 6. Then move steering column adjustment in all directions from limit stop to limit stop several times to work in the grease. 7. If noise does not resolve, wipe excess grease off and perform greasing and movement to limit stops in all directions again. For all other noises or if the above does not resolve, create a TIPS case Body, Chassis, and Entertainment inbox. Attach a detailed description of the noise complaint, images, and a recording of the noise. Include detailed items of the following: Position of height and longitudinal adjustment when the noise occurs If possible, locate affected component part on steering column State any change in the noise when steering column component parts are touched (e.g. spring, etc.)

87 32) may trigger a fault message ("48 V Service Required" with fault codes P0ADA91, P0ADE91, P0AA100, P0ADD00 or P0AA000) in the instrument cluster. This fault message may prevent the 48 V battery contactors from opening automatically if the 12 V power supply is interrupted. In this case, the 48 V on-board electrical system, including connected components, remain energized. Cause The contactors of the 48 V battery do not open, resulting in residual voltage (> 3V) even when the 12 V battery is disconnected. Remedy When working on the 48 V on-board electrical system or connected components, ensure the component being repaired is de-energized in the 48 V system after disconnecting the 12 V ground line. Use a DVOM and ensure that there is less than 3V across the 48V terminals. If the voltage is less than 3V, the repair can be continued in accordance with the WIS documentation. If the voltage is greater than 3V, disconnect the ground line from the 48 V on-board electrical system battery and secure from contacting any ground points of the vehicle before continuing the repair. Once the work has been completed, follow the procedure for clearing the 48 V battery fault message as specified.

Not possible to adjust front seats to memory preset. Head restraints of front seats cannot be adjusted. Cannot move to chauffeur mode/reclining seat position. Fault identification: Create log of seat control unit (both conditions must be met) 1. Fault B1F7E54 "Head restraint inclination adjustment not normalized. No calibration." stored in fault memory. 2. Value "0C" present in seat control unit log service 0X220239 (see attachment "seat control unit log"). If fault B1FBB15 "Malfunction in 'Head restraint inclination' switch. There is a short circuit to positive or an open circuit." is also stored in the fault memory, the cause might also be due to the wiring or terminal contacts. Cause Faulty head restraints Remedy Replace the affected head restraint

This may include: Seat memory Automatic seat adjustment Easy Entry/Exit Head restraint presetting Collision avoidance with bench seat at rear Actuation by other vehicle systems Seat normalization is missing, and fault code B228678 The control unit calibration has been lost or was not performed. Adaptation or adjustment is not correct. is stored in the seat control unit. Additional fault codes may also be present. Cause The condition is currently under investigation. Remedy Process any additional faults first. If a clear cause is found (for example, a failed component, wiring issue, or connector concern), repair that issue as required. If no root cause can be determined: Do NOT perform Initial Start-up, Software Update, or Normalization of the Control Unit Create a control unit log for the affected seat control unit. Open a TIPS case to the Body/Chassis/Entertainment inboxand attach the control unit log for further analysis.

One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics Cause Various root causes Remedy See attached diagnostic guide.

Remedy Check surrounding area of the steering column for possible noises. Instrument panel support Steering column switch module If noise only occurs when adjusting the steering column via electric actuation please perform: 1. Disassemble bellows of steering column tube module. 2. Move steering column entirely out and entirely down. 3. Grease steering column on green-marked positions with a suitable brush (find pictures in attachment). 4. Move column up 1/4 of the way and grease again. 5. Continue until upper limit stop is reached. 6. Then move steering column adjustment in all directions from limit stop to limit stop several times to work in the grease. 7. If noise does not resolve, perform above procedure again and anywhere there are movement or friction points that the noise seems to be emanating from. 8. Then move steering column adjustment in all directions from limit stop to limit stop several times to work in the grease. 9. If noise still does not resolve, please open a TIPS case. For all other noises or if the above does not resolve, create a TIPS case Body, Chassis, and Entertainment inbox. Attach a detailed description of the noise complaint, images, and a recording of the noise. A detailed description includes: Position of height and longitudinal adjustment when the noise occurs If possible, locate affected component part on steering column State any change in the noise when steering column component parts are touched (e.g. spring, etc.)

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!

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. NOTE: Verify that the concern falls under one of the attachment videos. If not, then it is outside of the scope of this LI. This also does not cover "Traffic Sign Inoperative" messages on the instrument cluster. Cause There are two identified reasons for this concern: 1. Country code information stored incorrectly at a particular geographic latitude range. 2. Incorrect reference data when the vehicle is started and a GPS signal is not immediately available. Remedy Update head unit software to latest version and the recheck function in the same location. NOTE: Updated head unit software for AMG's has NOT been released yet. ETA 12/2026. If vehicle is still exhibiting one of the symptoms as described exactly as in the complaint section or as shown in the video attachments, open a TIPS case to the Body/Chassis/Entertainment inbox with the following: Video of the concern. Exact location (latitude and longitude is best)

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. NOTE: Verify that the concern falls under one of the attachment videos. If not, then it is outside of the scope of this LI. This also does not cover "Traffic Sign Inoperative" messages on the instrument cluster. Cause There are two identified reasons for this concern: 1. Country code information stored incorrectly at a particular geographic latitude range. 2. Incorrect reference data when the vehicle is started and a GPS signal is not immediately available. Remedy Update head unit software to latest version and the recheck function in the same location. If vehicle is still exhibiting one of the symptoms as described exactly as in the complaint section or as shown in the video attachments, open a TIPS case to the Body/Chassis/Entertainment inbox with the following: Video of the concern. Exact location (latitude and longitude is best)

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!

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. NOTE: Verify that the concern falls under one of the attachment videos. If not, then it is outside of the scope of this LI. This also does not cover "Traffic Sign Inoperative" messages on the instrument cluster. Cause There are two identified reasons for this concern: 1. Country code information stored incorrectly at a particular geographic latitude range. 2. Incorrect reference data when the vehicle is started and a GPS signal is not immediately available. Remedy Do not replace parts. Please open a TIPS case to the Body/Chassis/Entertainment inbox but read the below carefully: The vehicle must be exhibiting the concern as shown in the attachment videos. The vehicle DOES NOT need to be at the dealer, nor does it need to be brought into the dealership. If the geographic location is known, it is very important that it is provided. Provide any pictures or videos, if available. A new software for the head unit is scheduled for tentative release in Q3 2026.

2. Service confirmation is not possible because "Perform vehicle handover" is displayed. This cannot be carried out. 3. The service display in the instrument cluster permanently displays 365 days (remaining time) and does not change. Cause Routine change in the software in N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)). Vehicle handover was not performed. Remedy For model series 290 AMG up to and including AEJ 22 and model series 167 up to and including AEJ 21/2, the following applies: Manually commission already-installed instrument cluster control unit N133/1 and then perform special procedure to re-initialize ASSYST data in N127 powertrain control unit. The following applies to model series 167 from AEJ 22/1 onward, 192 AMG, 206, 214, 223, 232 AMG, 236, 254, 290 AMG from AEJ 23 onward, 294, 295, 296, 297 and 465: Reinitialize ASSYST Plus under Adaptations Teach-in processes ASSYST PLUS in control unit N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)), and then perform the special procedure for reinitializing the ASSYST data in powertrain control unit N127.

2. Service confirmation is not possible because "Perform vehicle handover" is displayed. This cannot be carried out. 3. The service display in the instrument cluster permanently displays 365 days (remaining time) and does not change. Cause Routine change in the software in N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)). Vehicle handover was not performed. Remedy For model series 290 AMG up to and including AEJ 22 and model series 167 up to and including AEJ 21/2, the following applies: Manually commission already-installed instrument cluster control unit N133/1 and then perform special procedure to re-initialize ASSYST data in N127 powertrain control unit. For model series 167 as of AEJ 22/1, 192 AMG, 206, 214, 232 AMG, 236, 254, 290 AMG as of AEJ 23, 294, 295, 296, 297 and 465, the following applies: Reinitialize ASSYST Plus under Adaptations Teach-in processes ASSYST PLUS in control unit N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)), and then perform the special procedure for reinitializing the ASSYST data in powertrain control unit N127.

2. Service confirmation is not possible because "Perform vehicle handover" is displayed. This cannot be carried out. 3. The service display in the instrument cluster permanently displays 365 days (remaining time) and does not change. Cause Routine change in the software in N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)). Vehicle handover was not performed. Remedy For model series 290 AMG up to and including AEJ 22 and model series 167 up to and including AEJ 21/2, the following applies: Manually commission already-installed instrument cluster control unit N133/1 and then perform special procedure to re-initialize ASSYST data in N127 powertrain control unit. For model series 167 as of AEJ 22/1, 192 AMG, 206, 214, 232 AMG, 236, 254, 290 AMG as of AEJ 23, 294, 295, 296, 297 and 465, the following applies: Reinitialize ASSYST Plus under Adaptations Teach-in processes ASSYST PLUS in control unit N133/1 (instrument cluster) or A26/17 (MBUX multimedia system and instrument cluster (head unit)), and then perform the special procedure for reinitializing the ASSYST data in powertrain control unit N127.

Fault codes U019F00 or U019F87 current/stored in MRG1 control unit. Cause Various causes Remedy Perform guided test for fault code U019F with XENTRY diagnosis. Verify the following connections are clean and tight. Correct any problems and retest pump actuation: 12V plug at M75/11 48V plug at M75/11 48V connector X192/4 Connections at 48V fuse box F153/2 Sockets 1,2, and 5 at connector 2 of MRG1 control unit M75/11 circuit 41 ground If actuation and above connections are OK, but resistance between M75/11 and engine block is less than 2 ohms or heat shield touching coolant pump, proceed with below steps. 1Modify engine insulation per attached instructions. 2Remove engine control module and measure continuity within control unit between connector 2 pin 1 and connector 6 pin 2. 2aIf open circuit is found, replace engine control unit (MRG1) and perform initial startup. Refer to XENTRY parts information group 54/054 item 300. 3Clear faults and verify M75/11 operating normally.

(figure 1) On the abovementioned vehicles with a mileage up to 15,000 km (about 9,300 mi), noises can occur from the rear axle differential. Cause Drivetrain resonance caused by the gear mesh of the ring and pinion in the rear axle differential in combination with installed damper elements on the axle shafts. Remedy For precise noise analysis and localization, use the chassis ear/NVH kit and the following driving procedure: 1. Drive the vehicle in a tight circle with the steering at full lock in both clockwise and counter clockwise directions. Vary engine load during the maneuvers If a foghornlike noise occurs comparable to the reference video, the vehicle exhibits the condition If the noise is present: 1. Add 15 ml of additive (Friction Modifier) into the rear axle differential via the filler plug IMPORTANT NOTE: Do NOT use Friction Modifier in vehicles equipped with an electronically controlled locking differential (Code 467). 2. Tighten the filler plug 3. Drive the vehicle until the rear axle differential reaches operating temperature Note: Proper activation of the additive requires elevated oil temperatures After the test drive to operating temperature, evaluate the noise when the rear axle is cold and when warm. If the noise is no longer present: The issue is resolved and the vehicle can be released. If there is noticeable improvement: The vehicle can be released with the explanation that the noise will gradually disappear over an extended driving distance. If the noise is still present and remains unchanged: Replace the rear axle differential.

Remedy Check the compressor's index and part number Figure 1 against Table 1. If listed please perform the following: 1. Replace the compressor, drier, and expansion valve using the applicable WIS instructions. 2. Flush the system using the applicable WIS instructions.

investigation) Remedy If oil leaks are found at left or right cylinder head cover area please collect the following information and open TIPS case. 1. Collect photos of the leak 2. Include close up and wide view photos to accurately represent the location 3. Include if the vehicle has a "check oil level" Light on in the cluster or fault codes 4. Check oil level as per WIS to verify level and calculate possible oil loss from the leak 5. Identify and communicate the severity of the leak and provide supporting documentation 6. Open a TIPS case with the above information and submit to the Powertrain team for processing

coupling flange nut at drive pinion (Figures 3-4) Cause Damage to sealing ring during production process or insufficient use of lubricating paste during assembly of collar nut on coupling flange Remedy If any of the above-mentioned customer complaints are present, or if oil leakage or seepage is found at the front axle differential during a workshop visit, the following steps must be performed: If oil leakage is found at drive pinion sealing ring (input shaft): Remove coupling flange from differential, AR33.30-P-0550WT Replace drive pinion sealing ring New collar nut (for coupling flange), part number A 221 353 03 72, on contact surface and coat the 1st thread (from contact side to coupling flange) with lubricating paste (Figures 5-6) Install coupling flange. If oil leakage or slight seepage is found at coupling flange nut to drive pinion: Remove coupling flange from differential, AR33.30-P-0550WT Clean threads on input shaft new collar nut (for coupling flange), part number A 221 353 03 72, on contact surface and coat the 1st thread (from contact side to coupling flange) with lubricating paste (Figures 5-6) Install coupling flange.

There are no drivability concerns related to this complaint. Cause Root cause varies Remedy Prior to performing any repairs for this complaint: With a cold engine, pressurize the high temp coolant circuit and while it's under pressure, release the cap on the low temp coolant circuit and check if the pressure drops right away or not. If the pressure drops, the lower coolant hoses are swapped. Correct this, fill, bleed and test drive the vehicle. If the complaint returns, then continue with the steps below. IMPORTANT: Use VMI to check for the following emission extended warranty > Engine Thermostat (incl. software update) MY19-23, Various Models and Platforms (167, 190, 205, 213, 217, 222, 223, 232, 253, 290, 463) If the vehicle is covered under the above emission extended warranty, please perform steps outlined in the accompanying NCU prior to those outlined in this document. If vehicle is not covered under the above emission extended warranty or the complaint continues to occur, then proceed as follows: Check for available software updates to the ME (N3/10). If updated software is available, perform the update, clear the DTC and the perform each of the "WARM START" and "COLD START" test drives listed below twice. If the code does not re-appear then release the vehicle. If there is no new software available OR the DTC returns after the test drives then perform the following steps: Drain the coolant through a fine mesh sieve and check for signs of debris. Additionally, inspect the coolant reservoir for debris. If any debris is found take pictures of the reservoir and the mesh filter and "flush" the system at least 2-3 times to clear as much of the debris as possible Replace the thermostat and bleed the system as outlined in AR20.00-P-1142-04A, evacuate the system for 20-30 minutes instead of the 5 minutes specified in step 22 NOTE: Please use all the tools specified in the AR document. The DTC will continue to populate if the circuit is not properly bled NOTE: There are two valid thermostats to choose from in the parts section of this LI. Please verify which PN is applicable for the vehicle being worked on via XENTRY Parts Information After bleeding the system clear the DTC and perform each of the "WARM START" and "COLD START" test drives listed below twice. If the DTC does not reappear after the tests, release the vehicle If the ME (N3/10) software is up to date, the thermostat has already been replaced, and the complaint persists open a TIPS case and attach the following documents: Initial quick test ME (N3/10) control unit log The results of an R48 test from a yes response and from a no response Pictures of the coolant reservoir and mesh sieve (mentioned above) WARM START Begin with the engine coolant temperature at approximately 50 degrees C Activate the AC system, if defrost is not in use open the windows Drive the car normally until a coolant temperature of 75 degrees C is achieved Depress the accelerator pedal 50% for ~5 seconds (partial acceleration) Let off the accelerator pedal and let the car coast for ~10 seconds Continue to drive the car normally COLD START Drive for ~7 miles (normal driving) Shut off the engine in a parking lot (or similar), wait 30 seconds, then restart and continue driving Depress the accelerator pedal 50% for ~5 seconds (partial acceleration) Let off the accelerator pedal and let the car coast for ~10 seconds Continue to drive the car normally

pre-collision occupant protection system. The task of the system is to provide additional protection to vehicle occupants when there is a risk of a side impact. It is not a restraint system component in the conventional sense and does not contain an detonator. A potential side-impact situation is detected by radar sensors. If the system detects an existing likelihood of a side impact, a reversible air cushion in the outer seat side bolster is briefly inflated by opening a valve. The resulting pulse preemptively increases the distance between the door and the occupant in order to move the occupant out of the danger zone. If the system has been activated, the following message appears on the instrument cluster: PRE-SAFE Side Impulse inoperative. See Operator's Manual. Note: After system activation, diagnostic entry B1B3713 or B1B3813 is marked as active and stored in the ORC223 (N2/5) control unit. Cause After activation of the PRE-SAFE Side Impulse system, the function is no longer available. Remedy Please check the tight seating and possible damage of the radar sensors B29/11 or B29/12. Then replace the gas generator on the affected side (R12/65 or R12/66). After replacing the gas generator (R12/65 or R12/66), please perform commissioning and SCN coding of the radar sensors B29/11 or B29/12 to ensure they are up to date. Note: In principle, it is not necessary to replace the air cushion in the "PRE-SAFE Side Impulse" system, as it is designed for multiple activations (up to 10). Exception: After deployment of the sidebag (e.g., following a crash), exchange (air cushion with gas generator) of the "PRE-SAFE Impulse Side" is required in all cases.

The system function is restricted." active and/or stored in the ME (N3/10). There are no drivability concerns related to the complaint. Cause ME (N3/10) software Remedy Updated ME (N3/10) software is available for affected models. Below are the remedy software object numbers for each affected variant: MY24 - A1769037801 MY25 - A1769037901 MY26 - A1769038001 Once the ME software is updated: clear all DTCs, reset self adaptation of mixture, and perform an AMG adaptation drive.

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.

generated by a micromovement on the contact surface between the rim and the brake disk (wheel bolt group) and may be intensified by potential soiling. The more lightweight rim (AMG forged rim) transmits the noise louder; in the case of cast rims, the noise is generally not perceptible. This is not a technical defect, but rather a complaint concerning comfort. Safe operation of the vehicle is ensured at all times. Remedy Important note: The operations described below do not represent a permanent remedy in every case. The noise may reoccur again after an indefinite period of time; sanding the rims with abrasive media multiple times is not permissible. Only cleaning using the Hazet tool 4960-160 (recommendation) can be performed without any concerns each time the wheel is changed or if the complaint reoccurs. Replacing the parts (rim, wheel bolts, wheel bearings, wheel hub, brake disk) is not expedient in the event of this complaint. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Clean the components of the wheel bolt connection according to the WIS instructions Sand down the rim and brake disk bowl by performing the following steps: Manually sand rim (old design only) in area of water drain bores (Figure 1; item A), approx. 1.5 cm left and right of water drain bore (Figure 2) Note: Use abrasive paper with grit size 80. The grooving in this area should no longer be visible (sand down approx. 0.1-0.2mm) Also sand brake disk bowl using emery cloth or abrasive paper with a grain size of 120 For vehicles equipped with the AMG ceramic brake system (B07), abrasive paper may not be used for cleaning on the brake disk side Note: Do not use any cleaning agent when cleaning on the rim side. Cleaning using abrasive paper with a grain size of 80 will suffice. Do not apply any grease, lubricant or paste after cleaning The brake disk bowl should be "bare metal" in the area of the imprints made by the hole (Figure 3)

Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Throttle Lift-Off Noise - Rear) LI33.30-P-056665 (Throttle Lift-Off Noise - Front) LI40.10-P-059248 (Wheel cracking noise when cornering) Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present after re-testing: If 192/232 chassis, verify FIN is in the listed range below in "Operation B" and perform. If not 192/232 chassis or vehicle is a 192/232 not in the listed FIN range, additional verifications of where the noise is coming from are needed. Use multiple channel NVH method to narrow down location. Verify the LI's listed above were completed or if there are other similar noises associated with the chassis (Example: 192/232 also has under panel noises and an associated LI). Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner as seen in the attached pictures. NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing, steering knuckle, and axle mating face with Molykote (annular joint grease). See the attached steering knuckle and wheel hub pictures for reference. NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range): Only affects vehicles up to FIN end number: Model series 192: xxx xxx xx 002 876 Model series 232: xxx xxx xx 022 312 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Throttle Lift-Off Noise - Rear) LI33.30-P-056665 (Throttle Lift-Off Noise - Front) LI40.10-P-059248 (Wheel cracking noise when cornering) Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present after re-testing: If 192/232 chassis, verify FIN is in the listed range below in "Operation B" and perform. If not 192/232 chassis or vehicle is a 192/232 not in the listed FIN range, additional verifications of where the noise is coming from are needed. Use multiple channel NVH method to narrow down location. Verify the LI's listed above were completed or if there are other similar noises associated with the chassis (Example: 192/232 also has under panel noises and an associated LI). Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing, steering knuckle, and axle mating face with Molykote (annular joint grease) (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range): Only affects vehicles up to FIN end number: Model series 192: xxx xxx xx 002 876 Model series 232: xxx xxx xx 022 312 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle. See also: LI35.30-P-058566 (Throttle Lift-Off Noise - Rear) LI33.30-P-056665 (Throttle Lift-Off Noise - Front) LI40.10-P-059248 (Wheel cracking noise when cornering) Remedy 1. Perform Operation A and evaluate by testing vehicle. 2. If noise is still present after re-testing: If 192/232 chassis, verify FIN is in the listed range below in "Operation B" and perform. If not 192/232 chassis or vehicle is a 192/232 not in the listed FIN range, additional verifications of where the noise is coming from are needed. Use multiple channel NVH method to narrow down location. Verify the LI's listed above were completed or if there are other similar noises associated with the chassis (Example: 192/232 also has under panel noises and an associated LI). Operation A: 1. Clean contact surfaces of wheel bearing and steering knuckle with brake cleaner (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: The front area of the wheel bearing and the seals must not come into contact with the cleaner, otherwise, the sealing rings will be damaged. 2. Clean threads of wheel bearing mounting. 3. Thinly coat contact surfaces of wheel bearing, steering knuckle, and axle mating face with Molykote (annular joint grease) (see areas marked blue in pictures "2.jpg" and "3.jpg"). NOTE: Axle mating face greasing is also covered in LI35.30-P-058566 and LI33.30-P-056665. Operation B (Only applies to 192 and 232 in listed FIN range): Only affects vehicles up to FIN end number: Model series 192: xxx xxx xx 002 876 Model series 232: xxx xxx xx 022 312 1. Replace steering knuckle. 2. Wheel bearings do not need to be replaced.

OR Rattling, humming, dry sliding/gravel noise from the electric steering system when steering (see attachment). Complaint does not impact the ability to safely steer or control the vehicle. Cause Ball screw drive (KGT) of electric steering damaged by: 1. External force due to: Hitting the curb/posts with the front wheels. Driving over obstacles (e.g. pothole/ threshold/ speed bump/ gully) at an inappropriate speed. 2. Corrosion/ water ingress through a damaged boot (see attachment). Cracks (1) High pressure cleaner (2) Animal bite (3) See various examples listed in the attachments for examples of outside influence. Remedy Remove boot clamps closest to steering gear housing on both left and right (as seen in "Steering Rack Boot Clamp Location"). Pull back boot and inspect for rust, broken end stops, water, or any other anomalies. Replace electric steering. Note: Steering gears replaced due to outside influence or damage must not be claimed under warranty!

specifications in the vehicles of the above-mentioned model series delivered to you. It is possible that the polarities of the magnets in the transmission control unit (VGS) have been swapped. This could in turn result in shift quality issues and gear lockouts. Remedy MBUSA will conduct a service campaign. We therefore request that you replace the electrohydraulic controller unit (EHS) of the automatic transmission in the affected vehicles. Please refer to the attached work description for details on the operations required.

Your vehicle must be brought to a dealership to complete the update.

specifications in the vehicles of the above-mentioned model series delivered to you. It is possible that the polarities of the magnets in the transmission control unit (VGS) have been swapped. This could in turn result in shift quality issues and gear lockouts. MBUSA will conduct a service campaign. We therefore request that you replace the electrohydraulic controller unit (EHS) of the automatic transmission in the affected vehicles. Please refer to the attached work description for details on the operations required.

Remedy Short-term measure: Note: All stepsincluding resetting the learned values and performing the stationary adaptationmust be completed to resolve the concern. 1. Perform IPR and follow the provided instructions. 2. Perform software update if available (IPR will automatically check for status of software availability) 3. Perform Special Function "Resetting of learned values 'Deceleration Mode'" (VGS > Special Procedures > Special procedure > Resetting learned values Deceleration mode) 4. Complete the standstill adaptation Long-term measure: A software resolution has been released for several model years with software levels 22A.3 (n3g222aa03ub) and 22A.4 (n3g222aa04ub). - Check VGS control unit log or eeprom .txt file for "Program Status" to determine your vehicle. Software is in the approval process for MY23 with 22A.3. Once the software is released, an update on availability will be added in IPR and in this LI document. As of 6/8, software released for the following model years: MY26 with 22A.4 A001 902 25 21 >> A001 902 96 21 MY24+MY25 with 22A.3 A000 902 26 99 >> A001 902 97 21 If the vehicle software level is not 22A.3 or 22A.4: A software resolution will not be created for these vehicles, please follow the short term solution to alleviate the concern.

must be returned to your facing PDC. The deadline for all dealer returns is Thursday, October 8th, 2026. After October 8th, we will no longer accept returns of these parts. 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. We will replace all returned parts in accordance with the chart below.

existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, July 23rd, 2026. After July 23rd, 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.

existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, July 9, 2026. After July 9th, 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.

existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, June 25, 2026. After June 25th, 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.

E61.0 Remedy In the IC Control Unit Log, please check the following information: Verify whether DTCs B228229, B228287, and B226656 are present in either A or A+S. Verify that Status SchlsselID = "ID is not valid" and Anlernstatus = "IC is initialized", as shown in the attached image (image_2). Please run the XENTRY guided test for the listed DTCs and provide the results.

in VMI as OPEN under campaign 2026060005 in Netstar-VMI on July 10, 2026. Unrepaired affected vehicles will no longer have an entry listed for this campaign in VMI as of September 11, 2026. Instructions for remaining unrepaired vehicles will be published in a future measure. Please note that all customer inquiries should be directed to the Customer Care Center at 1-800-FOR-MERCEDES (1-800-367-6372).

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).

squeaking, chattering, shuddering B: The windshield is not wiped completely (streaking) C: During the downward movement water is pulled back onto the windshield from the A-pillar (Figure 1) D: After windshield cleaning, water keeps spraying onto the windshield for several wipe cycles (Figure 2) A1: The windshield and wiper blades are contaminated with residues from car washing facilities, identifiable by the water beading. The resulting differences in the friction values between the wiper blades and the windshield can excite the wiper blades to vibrate. Note: It is mostly wax residue from the washer system, but also water-repellent nano-particle coating for paint and/or silicone-based washer fluid, that could cause this problem. A partially dry windshield also has different friction values, which can likewise result in squeaking of the wiper blades A2: The wiper blades are worn by mechanical damage (wiper lip damaged by ice or insect debris, or deformed by long periods of disuse). A3: Incorrect angle of incidence of the wiper arms to the windshield. Because of this, the rubber lip of the wiper blade may not flip over at the reversal point. Cause B: B1: Wax/ dirt residues on the windshield B2: Wiper blades deformed or worn B3: Downforce of wiper arm not OK (Figure 3) Cause C: Water is pulled back onto the windshield by the differential pressure created as the wiper arm moves downwards. Cause D: Washer water collects in the fastening of the wiper blade and is blown onto the windshield by the airstream over several wipe cycles. Note and supporting information: Wiper blades are wear parts which, even when "not used" for long periods (kept in park position), may become permanently deformed and damaged. Further stresses on the rubber wiper blade arise due to various environmental influences which progressively change the effectiveness of the rubber wiper blade and accelerate the aging process. Due to the natural aging process and wear, the wiper blades should be replaced twice a year, preferably in Spring and Fall (see operator's manual). Remedy Remedy A: A1: Cleaning entire windshield with A 000 986 40 71. A2: Checking water's flow behavior after windshield has been cleaned (see Video 1). If, after cleaning, there are still areas with water beading, then the cleaning process must be carried out again until a rejection reaction is no longer present. Note: On the vehicle in the video (Video 1), water still beads on the bottom left of the windshield. The windshield is still not properly clean, even though it appears to be clean. The windshield is only properly clean when there are no more areas on the windshield where water beads. A3: Replace wiper blades with genuine wiper blades. Important: Only exchange wiper blades if windshield no longer has water-repellent areas Note: Replacement of wiper blades is not covered under warranty and can be replaced at the expense of the customer. Remedy B: B1: Clean windshield with intensive cleaner A 000 986 40 71. Important: Do not clean the wiper blades otherwise the graphite coating will be damaged. B2: Replace wiper blades with genuine wiper blades Note: Replacement of wiper blades is not covered under warranty and can be replaced at the expense of the customer. B3: Check the wiper arm for excessive resistance in the bearing. Restore mobility or replace wiper arm if necessary. Remedy C: Problem inherent in design for which there is no technical remedy. Exception: X204 up to 02/2014. In these vehicles, it is possible to install the design configuration of vehicles as of 02/2014. This includes wiper arms (styled arms) with improved behavior in this respect. It is also necessary to replace the wiper blades because the styled arms feature a Top Lock connection (previously Side Lock).

Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.

Cause Potentially relevance to hardware and/or software Remedy Scenario 1: 1. If the AC does not blow cold air, replace compressor (if compressor's index and part number Figure 1 match against Table 1). a. If the compressor does not fall within Table 1, please open a TIPS case. b. Flush procedure must be followed as per WIS. Scenario 2: 1. If AC does blow cold. a. Follow the following procedure: i. Have the air conditioning system recharged. ii. Clear the fault codes afterward. iii. Let the vehicle stand for 8 hours (OBD reset condition). iv. Check whether the fault is still present. b. Open TIPS case with your findings and answers the following questions, send to the HV/LV inbox. i. When exactly did the MIL appeared (immediately at startup or while driving). ii. What was the ambient temperature, any special driving maneuvers, and whether the vehicle had just come out of a climatecontrolled garage.

The discoloration is typically visible along the upper surface of the handle. Cause Insufficient surface treatment of the black chrome from the supplier Remedy 1.) Clean door handles. 2.) Inspect the handle after cleaning. Confirm that the discoloration remains clearly visible across the upper portion of the handle. Compare the condition to the LI reference photos 3.) If the discoloration matches the fault profile shown in the reference photos replace the affected retractable door handle.

Thank you for your patience while we find a solution.