AI Damage2007 Mercedes-Benz CLK350: common problems
Owners of the 2007 Mercedes-Benz CLK350 filed 42 complaints with NHTSA, most often about fuel/propulsion system and air bags. Details by component below, with sources.
Key figures
- Owner complaints
- 42
What fails most often
- 1 Fuel/propulsion system 31% of all complaints
- 2 Air bags 17% of all complaints
- 3 Powertrain 14% of all complaints
- 4 Electrical system 10% of all complaints
- 5 Engine 10% of all complaints
- 6 Vehicle speed control 10% of all complaints
- 7 Visibility 7% of all complaints
- 8 Structure 5% of all complaints
- Fuel/propulsion system: 13 complaints (31% of all).
- Air bags: 7 complaints (17% of all).
- Powertrain: 6 complaints (14% of all).
- Electrical system: 4 complaints (10% of all).
- Engine: 4 complaints (10% of all).
Symptoms owners describe
How many of the 42 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 | 13 | 0 | 0 |
| Air bags | 7 | 0 | 0 |
| Powertrain | 6 | 0 | 0 |
| Electrical system | 4 | 0 | 0 |
| Engine | 4 | 0 | 0 |
| Vehicle speed control | 4 | 0 | 0 |
| Visibility | 3 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Tires | 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.
The contact inspected the tire and noticed a blowout of the sidewall. The vehicle was towed to Costco, where the tire was replaced. The manufacturer was notified of the failure and referred the contact to the dealer for diagnostic testing. The vehicle was taken to the dealer.
The glued seam on the convertible top has come unglued above the back window. The car has been garage kept and only has 66,000 miles. When riding down the road, I am afraid the top may continue to peel back and try to come loose. This isn't only a safety concern, it is a security concern, and protection from weather.
The contact stated that while operating the vehicle, the rear taillights became inoperable and would not illuminate as designed. The cause of the failure was not yet determined. The local dealer and manufacturer were made aware of the failure, but no assistance was offered. The failure mileage was 49,000.
Srs light comes on. Had vehicle scanned and appears to be the passenger side air bag but doesn't say which one. After deleting the code, the light stays off until someone rides with me. Once they get out the light comes on.
Tl* the contact owns a 2007 mercedes benz clk350. The contact stated the bonding between the glass panel and the sliding roof frame deteriorated which resulted in the two parts separating.
The contact stated that while driving at an undisclosed speed, the check engine sensor light illuminated and remained illuminated. The vehicle was taken to an independent mechanic who replaced the intake manifold, cam shaft sensor and valves however, the check engine warning light remained illuminated.
Tire separated from outer wall on major highway. I was lucky to be able to pull over and stop .when I did tire rolled off of car in front of me down the road.
I am worried that the gas smell in the garage made some fumes into my house and this is a safety issue. I see some models of mercedes have been recalled for this reason. I would like mercedes to recall and repair this at no charge to me.
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 5,819 of 36,656 model years in the NHTSA data (top 16% most complained about).
On average one model year of the CLK350 has 21 complaints (5 years in the data). This year has 42, above average.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2007 Mercedes-Benz CLK350?
Owner complaints to NHTSA most often mention: fuel/propulsion system, air bags, powertrain. Total complaints: 42. The most frequent symptoms in complaint texts: fuel system, fuel smell (14%), warning lights, check engine (10%), windows, sunroof (10%).
How many service bulletins (TSB) were issued for the 2007 Mercedes-Benz CLK350?
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 CLK350 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 2026-11-05.