AI Damage2008 Mercedes-Benz C350: common problems
Owners of the 2008 Mercedes-Benz C350 filed 144 complaints with NHTSA, most often about electrical system and air bags. Details by component below, with sources.
Key figures
- Owner complaints
- 144
- involving a crash
- 3
What fails most often
- 1 Electrical system 37% of all complaints
- 2 Air bags 36% of all complaints
- 3 Steering 22% of all complaints
- 4 Exterior lighting 22% of all complaints
- 5 Engine 5% of all complaints
- 6 Visibility 2% of all complaints
- 7 Fuel/propulsion system 1% of all complaints
- 8 Powertrain 1% of all complaints
- Electrical system: 53 complaints (37% of all).
- Air bags: 52 complaints (36% of all), 2 of them with a crash reported by the owner.
- Steering: 32 complaints (22% of all), 1 of them with a crash reported by the owner.
- Exterior lighting: 31 complaints (22% of all).
- Engine: 7 complaints (5% of all).
Symptoms owners describe
How many of the 144 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) |
|---|---|---|---|
| Electrical system | 53 | 0 | 0 |
| Air bags | 52 | 2 | 0 |
| Steering | 32 | 1 | 0 |
| Exterior lighting | 31 | 0 | 0 |
| Engine | 7 | 0 | 0 |
| Visibility | 3 | 0 | 0 |
| Fuel/propulsion system | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Structure | 2 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Forward collision avoidance | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Tires | 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 air bags failed to deploy. A police report was filed. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was made aware of the failure. The failure mileage was approximately 22,000. The vin was not available.
In my 2008 mercedes c350 my airbags failed to deploy in a head on crash at 50 miles per hour, the car had 18,000 in damage and no airbags went off.
The ESL system malfunction causes either steering lock or ignition switch to fail resulting in a failure to start the vehicle creating safety issues and a failure to reach safe destination. This problem is reported to be an extremely common issue in the Mercedes Benz W204 C-Class models.
All of a sudden, the car would not start and inserting the key and turning doesn't do anything. Turns out that like many other folks, the Electronic Steering Lock module is faulty and preventing the car from starting. Found out that only the dealer can fix it and mercedes provides the replacement part.
-The rear subframe rusted through and broke. This made the vehicle extremely unsafe to drive. Braking caused the vehicle to veer right and was unsafe to stop. -Both a Mercedes dealership service center and an independent service center confirmed and verified the issue.
The contact stated that after the vehicle was turned off, she attempted to restart the vehicle, but the engine failed to turn over. The contact stated that the next day the vehicle started; however, while driving at an undisclosed speed, the vehicle stalled.
The contact attempted to start the vehicle however, the vehicle failed to start-up. There were no warning lights illuminated. The vehicle was towed to the dealer. The dealer diagnosed the vehicle Electronic Steering Lock failure. The vehicle was currently being repaired. The manufacturer was notified of the failure.
The rear subframe is corroded, the rear subframe is a structural part of the car that Mercedes refuses to cover under warranty or issue a recall for even though it is issued under recall in Canada
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 2,726 of 36,656 model years in the NHTSA data (top 7% most complained about).
On average one model year of the C350 has 28 complaints (13 years in the data). This year has 144, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Other years of this model
Questions and answers
What are the most common problems with the 2008 Mercedes-Benz C350?
Owner complaints to NHTSA most often mention: electrical system, air bags, steering. Total complaints: 144. The most frequent symptoms in complaint texts: won't start (19%), steering or power steering problems (17%), headlights and tail lights (16%).
How many service bulletins (TSB) were issued for the 2008 Mercedes-Benz C350?
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 2008 Mercedes-Benz C350 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 2008 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.