AI Damage2003 Mercedes-Benz SL: common problems
Owners of the 2003 Mercedes-Benz SL filed 3 complaints with NHTSA, most often about suspension and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Suspension 67% of all complaints
- 2 Electrical system 33% of all complaints
- 3 Electronic stability control 33% of all complaints
- 4 Service brakes 33% of all complaints
- 5 Steering 33% of all complaints
- 6 Wheels 33% of all complaints
- Suspension: 2 complaints (67% of all).
- Electrical system: 1 complaints (33% of all).
- Electronic stability control: 1 complaints (33% of all).
- Service brakes: 1 complaints (33% of all).
- Steering: 1 complaints (33% of all).
Symptoms owners describe
How many of the 3 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) |
|---|---|---|---|
| Suspension | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Wheels | 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.
Ignition shut off multiple times over days while driving cutting off all electrical radio, brakes steering etc has had electrical problems since 2004 or 2005 with battery suddenly being dead both accessory battery in trunk and starting battery and has had many thousands of dollars spent on various parts and computers…
I was driving home from work and my abc light visit workshop light came on. Ok, that's fine I'll take it to the shop tomorrow. While on my way home my car suddenly drops in height and a warning sign came on saying "stop driving, car too low." I pulled to the side of the road and noticed that my car had maybe an inch…
Failure of active body control hydraulic suspension system; pump and wheel valve failures resulting in loss of hydraulic fluid and resulting loss of ability of car to maintain safe vehicle height and safe drivable.
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 17,152 of 36,659 model years in the NHTSA data (top 47% most complained about).
On average one model year of the SL has 3 complaints (12 years in the data). This year has 3, about average.
What to check before buying
- 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.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Mercedes-Benz SL?
Owner complaints to NHTSA most often mention: suspension, electrical system, electronic stability control. Total complaints: 3. The most frequent symptoms in complaint texts: infotainment or screen glitches (33%), warning lights, check engine (33%).
How many service bulletins (TSB) were issued for the 2003 Mercedes-Benz SL?
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 SL 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.