What breaks most · 2006 to 2010 model years
Mercedes-Benz CLK350 problems by year
Owners have filed 77 safety complaints with NHTSA about the Mercedes-Benz CLK350 across model years 2006 to 2010. Three years stand out: 2006 for fuel system complaints, 2007 for fuel system complaints and 2008 for fuel system complaints.
- Years to check closely: 2006, 2007, 2008
- Complaints on file
- 772006 to 2010, all trims
- Worst year
- 200632 complaints
- Crashes reported
- 21 fires · 1 injuries · 0 deaths
- Typical failure mileage
- 66kMedian where owners gave mileage
- Recall campaigns
- 14Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 32 | 1 | 4 | Fuel system (9) | |
| 28 | 0 | 4 | Fuel system (10) | |
| 12 | 0 | 3 | Fuel system (6) | |
| 4 | 1 | 3 | Fuel system (2) | |
| 1 | 0 | 0 | Brakes (hydraulic) (1) |
What fails on the 2006 Mercedes-Benz CLK350
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Fuel systemFuel pumps and injectors | 28% |
9 | 0 | Shop fuel system parts for the 2006 Mercedes-Benz CLK350 |
| Engine and coolingRadiators, thermostats and cooling | 16% |
5 | 0 | Shop engine and cooling parts for the 2006 Mercedes-Benz CLK350 |
| Electrical systemAlternators, starters and ignition | 13% |
4 | 0 | Shop electrical system parts for the 2006 Mercedes-Benz CLK350 |
| EngineEngine gaskets and seals | 13% |
4 | 0 | Shop engine parts for the 2006 Mercedes-Benz CLK350 |
| Fuel systemFuel pumps and injectors | 9% |
3 | 0 | Shop fuel system parts for the 2006 Mercedes-Benz CLK350 |
| Powertrain and transmissionTransmission parts | 9% |
3 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Air bags | 6% |
2 | 0 | Check recalls for air bags on NHTSA.gov |
| Wheels | 3% |
1 | 0 | — |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
Fuel pump failed at 35,000 miles. Dealer and manufacturer refused to replace. Wanted to charge $2000 to replace after complaining reduced charge to $1400.
-
After filling gas tank strong gas smell around car specially in the garage no visible fuel leak.no fuel smell in the car only outside by rear wheels.not in motion ,
-
Takata recall - the car is stationary in my garage and is emittng a strong order of gas fumes and i am afraid these gas fumes could cause an explosion or fire
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 30, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Mercedes-Benz CLK350 years have the most problems?
By NHTSA complaint volume, 2006, 2007, 2008 carry the most filings on the Mercedes-Benz CLK350. The 2006 alone has 32 complaints, led by fuel system.
What is the most common Mercedes-Benz CLK350 problem?
On the 2006 model year, the most-reported component is fuel system with 9 complaints. The table above lists the top components for every year.
At what mileage do Mercedes-Benz CLK350 problems start?
The median mileage at failure across all Mercedes-Benz CLK350 complaints that include mileage is about 66,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.