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What 302 owners told NHTSA about the 2014 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 (302)Crash / fire / injury (27)Airbags (58)Brakes (53)Electrical system (41)Fuel system (37)Suspension (30)Steering (29)Body & structure (26)Engine (23)Transmission & drivetrain (16)Wheels (11)

Newest first · 302 complaints · page 13 of 13

Dec 3, 2013WheelsBrakes

THE VEHICLE WAS SERVICED ON 11/27/13. ON 12/2/13 PULLING AWAY FROM A STOP SIGN THERE WAS A LOUD POP AND SUDDEN DROP TO THE CAR. AFTER GETTING OUT OF THE VEHICLE AND LOOKING TO SEE WHAT HAD HAPPENED WE NOTICED THAT THE WHEEL HAD DETACHED FROM THE CAR. POLICE WERE NOTIFIED RIGHT AWAY BECAUSE THE VEHICLE WAS STILL IN THE ROAD. MERCEDES BENZ EMBRACE WAS NOTIFIED DIRECTLY AFTERWARDS AND INFORMED AS TO WHAT HAD HAPPENED. THE TOW TRUCK DRIVER HAD TO TAKE A BOLT OUT OF EACH REMAINING WHEEL TO RE-ATTACH THE ONE THAT CAME OFF TO LOAD THE VEHICLE ONTO THE FLAT BED. FOUR LUG BOLTS WERE MISSING. WE DID FIND A PIECE OF A BROKEN BOLT LAYING ON THE GROUND NOT FAR FROM THE CAR. THE CAR WAS TOWED TO THE MERCEDES BENZ IN MEMPHIS. I THINK THIS IS A SERIOUS DEFECT AND SHOULD BE THOROUGHLY INVESTIGATED TO SAVE THE LIFE OF OTHER DRIVERS, HAD THIS HAPPENED TO ME ON THE INTERSTATE WERE I WOULD HAVE BEEN DRIVING AT THE SPEED OF 70 MPH ALL OF US SITTING IN THE CAR WOULD HAVE BEEN DEAD AND NO ONE WOULD HAVE BEEN ABLE TO FIND THE CAUSE. I HOPE YOU WILL TAKE IMMEDIATE ACTION. THANKS *TR

NHTSA ODI 10554630

Nov 6, 2013Body & structureEquipment Adaptive/mobility

MY HUSBAND AND I JUST PURCHASED A 2014 MERCEDES E 350 CONVERTIBLE AND THE FIRST TIME I PLACED A STANDARD SIZE WATER BOTTLE IN THE CUP HOLDER IT FELL UNDER THE PEDALS ON THE FIRST TURN. THE CUP HOLDER ARE NOT SAFE TO USE FOR ANY CUPS OR BOTTLES. *TR

NHTSA ODI 10551134

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Working with the data? Download all 302 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 2014 Mercedes-benz E-class Cabrio verdict →