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What 24 owners told NHTSA about the 2023 Mercedes-benz C-class Cabriolet

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 (24)Crash / fire / injury (2)Driver assistance (11)Brakes (6)Electrical system (5)Engine (2)Tires (2)Body & structure (1)Fuel system (1)Service Brakes, Air (1)Suspension (1)Transmission & drivetrain (1)

1 of 24 complaints match · Transmission & drivetrain · crash/fire/injury only · clear filters

Mar 15, 2024Transmission & drivetrainBrakesCrash

On 2/17/24 the vehicle was parked in front of my house. There is a slight grade. The vehicle had been parked for approximately 1 hour when my neighbor called me to tell me that the vehicle had rolled down the hill and into his storage building. The vehicle rolled on its own. I have video evidence that no one was in or around the car at the time of this occurrence. I also, have 2 eyewitnesses who can corroborate this story. Due to safety concerns, I immediately returned the vehicle to Mercedes. I have .MOV files and pictures JPEG that will not upload for some reason.

NHTSA ODI 11577612

Working with the data? Download all 24 complaints as CSV · fetched from NHTSA July 14, 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 2023 Mercedes-benz C-class Cabriolet verdict →