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What 157 owners told NHTSA about the 2015 Mercedes-benz CLA

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 (157)Crash / fire / injury (11)Engine (42)Airbags (21)Transmission & drivetrain (20)Body & structure (19)Electrical system (18)Fuel system (14)Visibility & wipers (12)Brakes (9)Speed control (6)Driver assistance (5)

1 of 157 complaints match · Visibility & wipers · crash/fire/injury only · clear filters

Apr 27, 2018Visibility & wipers1 injury

WHILE DRIVING TO WORK ON A FREEWAY I SUDDENLY HEARD A BLASTING SOUND AND NEXT THING WHAT I SAW WAS THERE WERE GLASS PIECES EVERYWHERE ON MY BODY AND IN THE CAR. THE PANORAMIC MOON ROOF OF MY CAR EXPLODED OUT OF NO REASON. I AM VERY SURE THAT NOTHING HIT THE ROOF OR FALL ON THE ROOF. THE FREEWAY WAS WIDE OPEN AND FORTUNATELY I WAS WEARING SUNGLASSES SO MY EYES DIDN'T HURT BY THE EXPLOSION. HOWEVER, AFTER TAKING A MEDICAL LEAVE FROM WORK AND HAVING CHECKED UP AT THE HOSPITAL I DECIDED TO TAKE THE CAR TO MBENZ DEALERSHIP TO REPORT WHAT HAPPENED TO THE CAR AND KNOW WHY IT HAPPENED. SURPRISINGLY INSTEAD OF LOOKING INTO THE INCIDENT THEY DECIDED TO AVOID THE ISSUE AND INDIRECTLY ACCUSED ME OF CAUSING IT BY MYSELF. I WAS VERY SHOCKED AND DISAPPOINTED BY THE WAY A SITUATION AND THE CUSTOMER WAS HANDLED. I'D URGE NHTSA TO TAKE FURTHER ACTION TO MAKE SURE SUCH INCIDENTS DO NOT HAPPEN TO OTHER MBENZ CAR OWNERS. WHILE DOING RESEARCH ON INTERNET I FOUND OUT THAT MY INCIDENT IS NOT THE ONLY INCIDENT , THERE ARE MANY OTHER MBENZ OWNERS REPORTED THE SAME COMPLAINT ABOUT SUDDEN SHATTERING OF THEIR GLASS ROOF.

NHTSA ODI 11090493

Working with the data? Download all 157 complaints as CSV · fetched from NHTSA July 19, 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 2015 Mercedes-benz CLA verdict →