AI Damage2005 Mercedes-Benz SL55: common problems
Owners of the 2005 Mercedes-Benz SL55 filed 3 complaints with NHTSA, most often about electrical system and fuel system. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Electrical system 33% of all complaints
- 2 Fuel system 33% of all complaints
- 3 Service brakes 33% of all complaints
- Electrical system: 1 complaints (33% of all).
- Fuel system: 1 complaints (33% of all).
- Service brakes: 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) |
|---|---|---|---|
| Electrical system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Service brakes | 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.
It catches fire and burns down vehicles in MANY instances. Mercedes is not selling a replacement part because they want to save money. THIS VEHICLE HAS AN ELECTRONIC ASSISTED BRAKING SYSTEM!!! The BCM balances battery loads in the vehicle.
The vehicle was taken to the local dealer who diagnosed that the fuel tank was cracked and needed to be replaced. The vehicle was not yet repaired. The cause of the crack was not yet determined. The manufacturer was notified of the failure. The approximate failure mileage was 53,000.
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 SL55 has 4 complaints (5 years in the data). This year has 3, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- 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 2005 Mercedes-Benz SL55?
Owner complaints to NHTSA most often mention: electrical system, fuel system, service brakes. Total complaints: 3. The most frequent symptoms in complaint texts: brake failure (33%), smoke, burning smell, fire (33%).
How many service bulletins (TSB) were issued for the 2005 Mercedes-Benz SL55?
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 SL55 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 2026-11-06.