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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

YearOwner complaintsinvolving a crashTechnical service bulletins (TSB)YouTube repair videos
20112000
20103000
200912000
20085000

What fails most often

87654321
  1. 1 Air bags 32% of all complaints
  2. 2 Electrical system 32% of all complaints
  3. 3 Exterior lighting 23% of all complaints
  4. 4 Engine 14% of all complaints
  5. 5 Engine and cooling 5% of all complaints
  6. 6 Fuel/propulsion system 5% of all complaints
  7. 7 Service brakes 5% of all complaints
  8. 8 Steering 5% of all complaints
Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

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

ComponentOwner complaintsinvolving a crashTechnical service bulletins (TSB)
Air bags700
Electrical system700
Exterior lighting500
Engine300
Engine and cooling100
Fuel/propulsion system100
Service brakes100
Steering100
Visibility100
Other400

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

What to check before buying

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.