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2021 Mercedes-Benz C-Class

Problems, recalls and owner-reported issues

Engine is the leading concern among 15 owner complaints filed for this model year. This is the 23rd highest complaint count among 23 C-Class model years with reports.

Complaints by model year
  20. 15
Primary concernEngine8 reports · 53% of complaints
Owner complaints15Filed with NHTSA
Recall relationshipNo recalls on fileNHTSA campaign records

What owners report most often

  1. Engine8
  2. Air bags2
  3. Fuel/propulsion system2
  4. Power train2
  5. Back over prevention1
  6. Electrical system1
  7. Fuel system1
  8. Gasoline1

Recalls and investigations

No safety recalls on file.

Representative owner complaints: fuel system

1 report, newest first. Show all

  1. Fuel system, Gasoline, May 19, 2026

    The contact owns a 2021 Mercedes Benz C. The contact stated that while driving on the highway, the vehicle began to lose power, riding rough. The check engine light illuminated. The vehicle was towed to the dealer where it was diagnosed with a fuel injection failure. The vehicle read diagnostic code P1CEF85. The manufacturer was made aware of the issue. The approximate failure mileage was 60,000.