AI Damage2003 Mercedes-Benz S55: common problems
Owners of the 2003 Mercedes-Benz S55 filed 4 complaints with NHTSA, most often about electrical system and powertrain. Details by component below, with sources.
Key figures
- Owner complaints
- 4
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Powertrain 50% of all complaints
- 3 Suspension 50% of all complaints
- 4 Electronic stability control 25% of all complaints
- 5 Seat belts 25% of all complaints
- 6 Structure 25% of all complaints
- Electrical system: 2 complaints (50% of all).
- Powertrain: 2 complaints (50% of all).
- Suspension: 2 complaints (50% of all).
- Electronic stability control: 1 complaints (25% of all).
- Seat belts: 1 complaints (25% of all).
Symptoms owners describe
How many of the 4 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) |
|---|---|---|---|
| Electrical system | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Suspension | 2 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Structure | 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 the vehicle was idling, the contact was informed of flames underneath the vehicle. The fire department was able to extinguish the fire. There were no injuries. A police report was not filed. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The failure mileage was unknown.
I have been experiencing problems with my vehicle getting stuck in "park" after multiple tries (sometimes in excess of 30 minutes) it will release allowing me to shift into reverse or drive.
It is probably left over from the audi "unintended acceleration" days, but it is here in my mercedes benz. Adding to the complication is the fact that the shifter is supposed to remain locked in park unless the proper key is in the ignition. I am having a hard time getting my car out of park from time.
In addition, the front and rear suspension would drop numerous times, causing the tires to wear prematurely and the seat belt retractor to fail. The vehicle was taken to the dealer for the suspension failure several times; however, the contact did not know what part the dealer replaced for the suspension failure.
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 15,524 of 36,659 model years in the NHTSA data (top 42% most complained about).
On average one model year of the S55 has 3 complaints (4 years in the data). This year has 4, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Mercedes-Benz S55?
Owner complaints to NHTSA most often mention: electrical system, powertrain, suspension. Total complaints: 4. The most frequent symptoms in complaint texts: seat belts (25%), smoke, burning smell, fire (25%), unintended acceleration (25%).
How many service bulletins (TSB) were issued for the 2003 Mercedes-Benz S55?
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 S55 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 2026-11-06.