Mercedes-Benz C63: problems, complaints, bulletins
Summary for the Mercedes-Benz C63 across 4 model years: 22 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Air bags 32% of all complaints
- 2 Electrical system 32% of all complaints
- 3 Exterior lighting 23% of all complaints
- 4 Engine 14% of all complaints
- 5 Engine and cooling 5% of all complaints
- 6 Fuel/propulsion system 5% of all complaints
- 7 Service brakes 5% of all complaints
- 8 Steering 5% of all complaints
- Air bags: 7 complaints (32% of all).
- Electrical system: 7 complaints (32% of all).
- Exterior lighting: 5 complaints (23% of all).
- Engine: 3 complaints (14% of all).
- Engine and cooling: 1 complaints (5% of all).
Symptoms owners describe
How many of the 22 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) |
|---|---|---|---|
| Air bags | 7 | 0 | 0 |
| Electrical system | 7 | 0 | 0 |
| Exterior lighting | 5 | 0 | 0 |
| Engine | 3 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Other | 4 | 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.
Glass sunroof While driving, heard a loud bang/pop, glass sunroof began to shatter, and fall onto me, creating a unsafe conditions. Pulled over immediately and closed plastic sunshade to prevent entire glass window from collapsing on top of me. Particles of glass and finite glass dust covered interior, and my person.
Tl* takata recall. The contact owns a 2010 mercedes-benz c63. The contact received notification of nhtsa campaign number: 16v363000 (air bags). The dealer (mercedes-benz of sacramento, [address], sacramento, [ZIP], [phone]) was contacted and confirmed that the parts were not available for the recall remedy.
Tl* takata recall. The contact owns a 2009 mercedes-benz c63. The contact received notification of nhtsa campaign number: 16v081000 (air bags). The dealer (mercedes-benz of calabasas, [address], calabasas, [ZIP], [phone]) was contacted and confirmed that parts were not available. The manufacturer was not notified.
Tl* takata recall. The contact owns a 2011 mercedes-benz c63. The contact received notification of nhtsa campaign numbers: 16v081000 (air bags) and 16v363000 (air bags). The part was not available within a reasonable time frame to schedule the recall repair.
Takata recall- nhtsa recall #16v363 and manufacturer recall # [phone] active recall since may 25, 2016. No remedy yet available. Unsafe to operate vehicle. Manufacturer has not addressed this in a timely manner.
Basically, security system in the car that lets the key communicate with the ignition system goes out and the car will not start. It's a $1200 fix minimum..
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Other models of this make
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.