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What 66 owners told NHTSA about the 2018 Mercedes-benz E-class Cabrio

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 (66)Crash / fire / injury (7)Electrical system (13)Engine (13)Wheels (8)Steering (7)Transmission & drivetrain (6)Driver assistance (5)Body & structure (4)Brakes (4)Seat belts (4)Speed control (4)

1 of 66 complaints match · Body & structure · crash/fire/injury only · clear filters

Jul 30, 2018Body & structure1 injury

WHEN THE VEHICLE IS PARKED AND EITHER OF THE FRONT DOORS ARE OPENED, IT IS VERY DIFFICULT TO KEEP THE DOOR FROM SLAMMING ONTO SOMEONE ATTEMPTING TO EXIT THE VEHICLE. THIS OCCURS UNLESS THE VEHICLE ON A SLOPE DOWNHILL OR TOWARDS THE SIDE OF THE DOOR THAT IS OPENED. THIS HAS BRUISED MY LEGS AND MY TEEN-AGED DAUGHTER'S LEGS. I WILL NOT ALLOW MY 85 YEAR OLD FATHER TO EXIT WITHOUT SOMEONE ELSE TO HOLD HIS DOOR OPEN. MERCEDES-BENZ HAS REPLACED THE HINGES ONCE UNDER WARRANTY BUT SAYS NOW THAT THEY ARE "OPERATING AS DESIGNED." I GUESS THE DESIGN IS THE PROBLEM.

NHTSA ODI 11114582

Working with the data? Download all 66 complaints as CSV · fetched from NHTSA July 26, 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 2018 Mercedes-benz E-class Cabrio verdict →