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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 · Suspension · clear filters

Feb 15, 2024SuspensionService Brakes, Air

The contact owns a 2023 Mercedes-Benz C43 AMG. While driving into a parking lot at a very slow speed, the braking system suddenly activated, and the vehicle shut off. After restarting the vehicle, the messages "Rear Axle Malfunction", "Active Braking System Limited" and "Inoperative" were displayed. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 5,600.

NHTSA ODI 11572056

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 →