Home · 2023 Mercedes-benz C-class Cabriolet · Complaints

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 · Body & structure · clear filters

May 23, 2025Body & structure

While driving at 60mph my panoramic sunroof completely shattered. Nothing at all hit the sunroof to cause it to shatter. If my sunshade cover had not been on, the glass would have fallen on me while operating my vehicle. This is not only dangerous but unacceptable. It was also a distraction that could have caused an accident. Mercedes did not make me aware of the class action lawsuit they have with the panoramic sunroofs, and I feel that was neglectful on their part. Upon inspection from a service advisor at a Mercedes Benz dealership, they told me something must have hit it (nothing hit it) and want to charge me $4,000 to fix it.

NHTSA ODI 11662742

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 →