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What 76 owners told NHTSA about the 2015 BMW 428i

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 (76)Crash / fire / injury (14)Electrical system (35)Engine & cooling (26)Engine (10)Airbags (7)Brakes (6)Fuel system (5)Body & structure (4)Transmission & drivetrain (4)Speed control (3)Tires (3)

Newest first · 76 complaints · page 4 of 4

Sep 1, 2014BrakesBody & structureCrash

1.TRAVELING ABOUT 20-30MPH ON THE FREEWAY UNDER SLOW TRAFFIC CONDITION 2.THE CAR WAS CRUISING ABUT 20-25MPH AT THE POINT OF ACCIDENT. I NEEDED TO REDUCE SPEED AS TRAFFIC GET SLOWER, BUT BRAKE DID NOT FUNCTION PROPERLY. PRESSED BRAKE HARD BUT THE CAR WAS STILL ROLLING AND REAR ENDED THE CAR FRONT OF ME TWICE, BECAUSE MY CAR COULD NOT STOP UNTIL HIT REAR END TWICE I STRONGLY BELIEVE THIS INCIDENT RELATED TO PREVIOUS NHTSA CAMPAIGN NUMBER: 13V454000. *TR

NHTSA ODI 10629894

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Working with the data? Download all 76 complaints as CSV · fetched from NHTSA July 28, 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 BMW 428i verdict →