What breaks most · 2006 to 2017 model years
Mercedes-Benz C350 problems by year
Owners have filed 300 safety complaints with NHTSA about the Mercedes-Benz C350 across model years 2006 to 2017. One year stands out: 2008 for air bags complaints. The quietest years are 2014, 2007 and 2013.
- Years to check closely: 2008
- Fewest complaints: 2014, 2007, 2013
- Complaints on file
- 3002006 to 2017, all trims
- Worst year
- 2008135 complaints
- Crashes reported
- 65 fires · 9 injuries · 0 deaths
- Typical failure mileage
- 68kMedian where owners gave mileage
- Recall campaigns
- 50Across 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 |
|---|---|---|---|---|
| 21 | 0 | 5 | Fuel system (7) | |
| 6 | 0 | 5 | Fuel system (3) | |
| 135 | 3 | 6 | Air bags (52) | |
| 61 | 1 | 7 | Air bags (25) | |
| 14 | 1 | 4 | Air bags (8) | |
| 22 | 0 | 4 | Air bags (14) | |
| 20 | 0 | 5 | Air bags (19) | |
| 11 | 0 | 6 | Air bags (11) | |
| 5 | 1 | 4 | Air bags (4) | |
| 4 | 0 | 4 | Air bags (2) | |
| 1 | 0 | 0 | Electrical system (1) |
What fails on the 2008 Mercedes-Benz C350
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Air bags | 39% |
52 | 2 | Check recalls for air bags on NHTSA.gov |
| Electrical systemAlternators, starters and ignition | 36% |
48 | 0 | Shop electrical system parts for the 2008 Mercedes-Benz C350 |
| Exterior lightingHeadlights, tail lights and bulbs | 22% |
30 | 0 | Shop exterior lighting parts for the 2008 Mercedes-Benz C350 |
| SteeringPower steering pumps, racks and hoses | 21% |
29 | 1 | Shop steering parts for the 2008 Mercedes-Benz C350 |
| EngineEngine gaskets and seals | 4% |
6 | 0 | Shop engine parts for the 2008 Mercedes-Benz C350 |
| Unknown or other | 2% |
3 | 0 | — |
| Fuel systemFuel pumps and injectors | 1% |
2 | 0 | Shop fuel system parts for the 2008 Mercedes-Benz C350 |
| Powertrain and transmissionTransmission parts | 1% |
2 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
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.
-
Front lamps and headlight keep randomly not functioning at start or when driving. Warning light that bulb is out comes on but then goes away and the lights come back on after a little of time and a restart of engine.
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 C350 years have the most problems?
By NHTSA complaint volume, 2008 carries the most filings on the Mercedes-Benz C350. The 2008 alone has 135 complaints, led by air bags.
What is the most common Mercedes-Benz C350 problem?
On the 2008 model year, the most-reported component is air bags with 52 complaints. The table above lists the top components for every year.
At what mileage do Mercedes-Benz C350 problems start?
The median mileage at failure across all Mercedes-Benz C350 complaints that include mileage is about 68,000 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.