AI DamageMercedes-Benz CLK550: problems, complaints, bulletins
Summary for the Mercedes-Benz CLK550 across 2 model years: 6 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
| Year | Owner complaints | involving a crash | Technical service bulletins (TSB) | YouTube repair videos |
|---|---|---|---|---|
| 2008 | 1 | 0 | 0 | 0 |
| 2007 | 5 | 0 | 0 | 0 |
What fails most often
- 1 Fuel/propulsion system 50% of all complaints
- 2 Engine 17% of all complaints
- 3 Engine and cooling 17% of all complaints
- 4 Fuel system 17% of all complaints
- Fuel/propulsion system: 3 complaints (50% of all).
- Engine: 1 complaints (17% of all).
- Engine and cooling: 1 complaints (17% of all).
- Fuel system: 1 complaints (17% of all).
Symptoms owners describe
How many of the 6 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/propulsion system | 3 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Other | 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.
Parked my car in my garage for the night, next morning my garage had a strong smell of gas. When I got in the car it was even stronger. Has been 3 days now and you can even smell the gas outside of the car when it's been parked.the overwhelming smell of gasoline inside cabin of my car is nauseating and I'm afraid it's…
A mercedes dealer confirmed through diagnostics and a smoke test that both sending units and seals were defective, and needed to be replaced.
The vehicle stalled, engine quit, on a busy side street. The driver pulled over on the dirt side of the street. Restarts were attempted to no avail. The engine will idle for a couple of seconds then shutdown. It sounded like fuel starvation. The fuel indicator showed 4 bars or a little under half tank.
When the gas tank is filled up fuel is leaking from the top of the tank and there is a strong odor of gasoline in the garage. After the car is driven and a few gallons of fuel are burned, the smell is no longer noticeable. The repair facility said the fuel sending unit and seals need to be replaced.
The contact stated that while driving 30 mph, the coolant light illuminated as the vehicle stalled. The contact was not able to restart the vehicle and the vehicle was towed to a dealer.
While driving 10 mph, the engine failed and the steering locked. The failure occurred without warning. The vehicle was towed to a mercedes benz dealer. The vin, purchase date, engine size, powertrain, and mileage information were unknown.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
Other models of this make
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.