AI Damage2003 Mercedes-Benz 500: common problems
Owners of the 2003 Mercedes-Benz 500 filed 11 complaints with NHTSA, most often about fuel system and suspension. Details by component below, with sources.
Key figures
- Owner complaints
- 11
- involving a crash
- 1
What fails most often
- 1 Fuel system 27% of all complaints
- 2 Suspension 27% of all complaints
- 3 Electrical system 9% of all complaints
- 4 Fuel/propulsion system 9% of all complaints
- 5 Seat belts 9% of all complaints
- 6 Service brakes 9% of all complaints
- 7 Tires 9% of all complaints
- Fuel system: 3 complaints (27% of all).
- Suspension: 3 complaints (27% of all), 1 of them with a crash reported by the owner.
- Electrical system: 1 complaints (9% of all).
- Fuel/propulsion system: 1 complaints (9% of all).
- Seat belts: 1 complaints (9% of all).
Symptoms owners describe
How many of the 11 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel system | 3 | 0 | 0 |
| Suspension | 3 | 1 | 0 |
| Electrical system | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While driving the lower ball joints on the passenger side snapped in half, causing a collision. Consumer complained to the dealer that the front end felt loose while driving. Vehicle was taken to the dealership three times. There were no injuries.
Since then we have had a strong fuel smell when the gas tank is filled completely. If we only fill the gas tank about 3/4 or less, there is no gas smell. We recently had the car serviced and the mechanic told us the gas cap needed to be replaced and a seal/cap in an overfill tank under the rear seat was loose.
The front passenger seat belt does not extend out and does not work properly during hot weather.
Was going down road and front strut bottomed out because of air bellow failure in air leveling system .many people have had same problem!
I was driving my 2003 mercedes e500 down a hill when the brakes completely failed. This occurred suddenly and simultaneously by dashboard lit up with warnings and admonishing to pull over and not drive.
While parked the battery died. As a result, the vehicle would not unlock. The vehicle had multiple electrical system problems.
When applying the brakes vehicle stalled inadvertently. Consumer contacted the manufacturer, who told consumer that this vehicle had recall repairs done. Currently, stalling problems recurred.
On 2/13/04 my wife who is 8 months pregnant was going home after a doctors appointment when she experienced a flat tire in her 2003 mercedes c240 on I 75 going south near arvida parkway exit, she immediately pulled off to the side of the rode and proceded to call roadside assistance from mercedes, they advised her not…
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 10,520 of 36,656 model years in the NHTSA data (top 29% most complained about).
On average one model year of the 500 has 7 complaints (14 years in the data). This year has 11, above average.
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Mercedes-Benz 500?
Owner complaints to NHTSA most often mention: fuel system, suspension, electrical system. Total complaints: 11. The most frequent symptoms in complaint texts: battery drain (9%), fuel system, fuel smell (9%), seat belts (9%).
How many service bulletins (TSB) were issued for the 2003 Mercedes-Benz 500?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2003 Mercedes-Benz 500 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2003 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.