Home · 2011 Mercedes-benz C-class Hybrid · Complaints

What 516 owners told NHTSA about the 2011 Mercedes-benz C-class Hybrid

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (516)Crash / fire / injury (25)Airbags (269)Suspension (62)Fuel system (51)Body & structure (50)Electrical system (46)Steering (35)Lights (21)Brakes (13)Engine (11)Transmission & drivetrain (10)

51 of 516 complaints match · Fuel system · clear filters · page 3 of 3

Sep 9, 2015Fuel system

I FILLED MY GAS TANK UP FRIDAY EVENING, WENT HOME AND PARKED MY VEHICLE IN THE GARAGE. THE NEXT MORNING THERE WAS A STRONG SMELL OF GASOLINE COMING FROM THE CAR. I TOOK IT TO THE MERCEDES DEALER AND THEY SAID THE SEAL AND CAP UNDER THE PASSENGER BACK SEAT NEEDED TO BE REPLACED. THEY WANTED TO CHARGE $434. NOT ONLY IS THIS DANGEROUS IT SHOULD NOT BE THE CONSUMERS RESPONSIBILITY WHEN THE MANUFACTURER PROVIDED FAULTY MATERIAL.

NHTSA ODI 10762669

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Working with the data? Download all 516 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2011 Mercedes-benz C-class Hybrid verdict →