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#BS-2004-MERSCL-73C5

2004 Mercedes Benz S Class

Based on reports from 17 owners and 4 recalls for this exact model.

Complaints
17
Crashes
1
Fires
1
Recalls
4
TSBs
19
🟢

Preliminary Verdict

Proceed with Caution

Based on 17 complaints, 1 crashes, 1 fires, and 4 recalls.

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

3 owners reported electrical issues — failures commonly reported around 64K miles.

!Inspect the Power Train:automatic TransmissionMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

4
0–30K
3
30–60K
6
60–90K
1
90–120K
120–150K
150K+

Peak failure range: 60–90K miles (6 reports) • Median: 64K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Electrical (3 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Electrical3 (18%)
Power Train:automatic Transmission3 (18%)
Air Bags:frontal1 (6%)
Suspension:front1 (6%)
Wheels & Tires1 (6%)
Steering1 (6%)
Visibility1 (6%)
Airbags1 (6%)

2004 Mercedes Benz S Class: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 18% of all reports filed for the 2004 Mercedes Benz S Class, with 3 owners filing complaints with NHTSA. The median mileage at time of complaint is 64,000 miles, suggesting issues tend to surface around the 64K-mile mark.

Power Train:automatic Transmission Issues

Power Train:automatic Transmission complaints account for 18% of all reports filed for the 2004 Mercedes Benz S Class, with 3 owners filing complaints with NHTSA. Owners should pay attention to power train:automatic transmission-related symptoms during test drives and pre-purchase inspections.

Air Bags:frontal Issues

Air Bags:frontal complaints account for 6% of all reports filed for the 2004 Mercedes Benz S Class, with 1 owners filing complaints with NHTSA. Owners should pay attention to air bags:frontal-related symptoms during test drives and pre-purchase inspections.

Suspension:front Issues

Suspension:front complaints account for 6% of all reports filed for the 2004 Mercedes Benz S Class, with 1 owners filing complaints with NHTSA. Owners should pay attention to suspension:front-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

2
04
4
05
1
08
3
09
3
10
2
11
1
12
1
14

Complaints filed with NHTSA by year for the 2004 Mercedes Benz S Class. Recent trend: stable.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (4 recalls)

04V285000Aug 2004

LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK

ON CERTAIN VEHICLES, THE TRUNK LID SPRINGS COULD FAIL IN THE CLOSED TRUNK LID POSITION.

06V028000Sep 2006

INTERIOR LIGHTING

ON CERTAIN VEHICLES, THE INSTRUMENT CLUSTER IS EXPERIENCING ELECTRICAL MALFUNCTIONS. THE INSTRUMENT CLUSTER CONTAINS GAUGES AND INDICATORS THAT MUST BE ILLUMINATED WHENEVER THE VEHICLE IS IN OPERATION.

07V263000Jul 2007

ENGINE AND ENGINE COOLING

ON CERTAIN VEHICLES, CORROSION MAY OCCUR IN THE INNER STEEL PORTIONS OF THE ACTIVE BODY CONTROL'S (ABC) HIGH PRESSURE DISTRIBUTION HOSE DUE TO EXTENSIVE EXPOSURE TO HUMIDITY CAUSING DETERIORATION OF THE HOSE.

08V303000Aug 2008

ELECTRICAL SYSTEM

MERCEDES-BENZ IS RECALLING MY 2006-2008 M-CLASS, R-CLASS, MY 2005-2009 SLK-CLASS, MY 2005-2008 C-CLASS, MY 2003-2004 AND 2006-2008 CLK-CLASS, MY 2003-2008 E-CLASS, MY 2004 AND 2008 CL-CLASS, MY 2008 CLS-CLASS, MY 2004 AND 2007-2008 S-CLASS, MY 2003 G-CLASS, AND MY 2003-2004, 2006 AND 2009 SL-CLASS VEHICLES. A SOFTWARE CALIBRATION NUMBER (SCN) CODING RECEIVED ON THE AFFECTED VEHICLES DURING A RECENT WORKSHOP VISIT WAS INCORRECT. DEPENDING ON THE MODEL YEAR AND MODEL AFFECTED, THE RESULTS OF AN INCORRECT SCN CODING CAN AFFECT A NUMBER OF VEHICLE SAFETY AND EMISSION FUNCTIONS INCLUDING THE FOLLOWING TYPES OF FUNCTIONS: (1) THE FUEL GAUGE READINGS MAY BE INCORRECT; (2) A STUCK FUEL-LEVEL SENSOR MAY NOT BE DISPLAYED IN THE INSTRUMENT CLUSTER; (3) THE OBD SYSTEM MAY CAUSE THE CHECK ENGINE LIGHT TO ILLUMINATE INCORRECTLY; AND, (4) THE SPEEDOMETER MAY BE OUT OF TOLERANCE.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 17 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 4 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

2004 Mercedes Benz S Class: Frequently Asked Questions

What is the most common problem with the 2004 Mercedes Benz S Class?
The most commonly reported issue with the 2004 Mercedes Benz S Class is related to the electrical, with 3 complaints filed with NHTSA.
Is the 2004 Mercedes Benz S Class reliable?
The 2004 Mercedes Benz S Class has 17 complaints, 1 crash reports, and 1 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.
How much does it cost to fix 2004 Mercedes Benz S Class problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2004 Mercedes Benz S Class have any recalls?
Yes, the 2004 Mercedes Benz S Class has 4 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Mercedes Benz S Class problems start?
Based on 14 complaints with mileage data, the median mileage at time of complaint is 64,000 miles. The highest concentration of reported issues occurs in the 60–90K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 17 owner reports. Know before you buy.

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