AI Damage2007 Mercedes-Benz CLK550: common problems
Owners of the 2007 Mercedes-Benz CLK550 filed 5 complaints with NHTSA, most often about fuel/propulsion system and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 5
What fails most often
- 1 Fuel/propulsion system 40% of all complaints
- 2 Engine 20% of all complaints
- 3 Engine and cooling 20% of all complaints
- 4 Fuel system 20% of all complaints
- Fuel/propulsion system: 2 complaints (40% of all).
- Engine: 1 complaints (20% of all).
- Engine and cooling: 1 complaints (20% of all).
- Fuel system: 1 complaints (20% of all).
Symptoms owners describe
How many of the 5 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 | 2 | 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…
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.
Comparison
By complaint count this model year ranks 14,283 of 36,659 model years in the NHTSA data (top 39% most complained about).
On average one model year of the CLK550 has 3 complaints (2 years in the data). This year has 5, above average.
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 years of this model
Questions and answers
What are the most common problems with the 2007 Mercedes-Benz CLK550?
Owner complaints to NHTSA most often mention: fuel/propulsion system, engine, engine and cooling. Total complaints: 5. The most frequent symptoms in complaint texts: engine failure or replacement (40%), fuel system, fuel smell (40%), stalls while driving (40%).
How many service bulletins (TSB) were issued for the 2007 Mercedes-Benz CLK550?
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 2007 Mercedes-Benz CLK550 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 2007 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.