AI Damage2005 Mercedes-Benz SL500: common problems
Owners of the 2005 Mercedes-Benz SL500 filed 19 complaints with NHTSA, most often about service brakes and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 19
- involving a crash
- 1
What fails most often
- 1 Service brakes 37% of all complaints
- 2 Electrical system 21% of all complaints
- 3 Powertrain 16% of all complaints
- 4 Suspension 11% of all complaints
- 5 Air bags 5% of all complaints
- 6 Engine 5% of all complaints
- 7 Fuel/propulsion system 5% of all complaints
- 8 Latches, locks, linkages 5% of all complaints
- Service brakes: 7 complaints (37% of all).
- Electrical system: 4 complaints (21% of all).
- Powertrain: 3 complaints (16% of all).
- Suspension: 2 complaints (11% of all).
- Air bags: 1 complaints (5% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 19 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) |
|---|---|---|---|
| Service brakes | 7 | 0 | 0 |
| Electrical system | 4 | 0 | 0 |
| Powertrain | 3 | 0 | 0 |
| Suspension | 2 | 0 | 0 |
| Air bags | 1 | 1 | 0 |
| Engine | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Latches, locks, linkages | 1 | 0 | 0 |
| Visibility | 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.
The contact's vehicle proceeded to flip over,however the air bags did not deploy. The contact sustained severe arm and shoulder injuries. The two vehicles he crashed into were totaled as well as the contacts vehicle. A police report was filed. The failure and current mileages were 7,800.
This issue almost cause an accident on the freeway, Transmission went from drive to neutral and then reverse. This is cause by the range sensor. Conductor plate for transmission is very common for this type of vehicles. Please investigate. This can cause a fatal injury or death.
The contact stated that while driving from a complete stop, the brake warning light and other unknown warning lights illuminated. The contact stated that he lost control of the vehicle but did not provide further information.
The contact stated that the whole right side of the vehicle trunk caught on fire while the vehicle was parked. The contact stated that the fire started in the upper right front area of the trunk where they were wires and saw sparks. The contact stated that the fire went out on its own because there was no oxygen.
While driving 75 mph, the vehicle went into limp mode and the speed decreased to 35 mph. In addition, the abs and esp warning indicators illuminated. The vehicle was taken to mercedes-benz of palm beach ([address], west palm beach, [ZIP], [phone]), but was not diagnosed or repaired.
After parking the vehicle, the contact heard a noise coming from the engine compartment and flames appeared. The fire department extinguished the fire. A police report was not filed. There were no injuries. The vehicle was destroyed and towed to a towing yard. The dealer was not contacted.
Once I stopped the car at the side of the road the transmission engaged and the car regained power the the rear wheels and I was able to drive the car off the road to safety with some minimal slipping of the transmission. Once I got the car home I checked for error codes even though there was no check engine light on.
Tl* the contact owns a 2005 mercedes-benz sl500. While driving 40 mph, "car too low stop driving" message appeared on the display panel. The contact coasted the vehicle into a fuel station, looked under the vehicle, and noticed that the frame was resting on top of the front driver and passenger wheels.
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 8,437 of 36,656 model years in the NHTSA data (top 23% most complained about).
On average one model year of the SL500 has 14 complaints (16 years in the data). This year has 19, above average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- 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.
Other years of this model
Questions and answers
What are the most common problems with the 2005 Mercedes-Benz SL500?
Owner complaints to NHTSA most often mention: service brakes, electrical system, powertrain. Total complaints: 19. The most frequent symptoms in complaint texts: warning lights, check engine (26%), brake failure (16%), smoke, burning smell, fire (11%).
How many service bulletins (TSB) were issued for the 2005 Mercedes-Benz SL500?
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 2005 Mercedes-Benz SL500 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 2005 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.