Home · 2015 BMW 428i · Complaints

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)

4 of 76 complaints match · Body & structure · clear filters

Nov 7, 2024Electrical systemBody & structure

Water accumulation in the rear passenger side when it rains. Can hear slushing water when driving. It accumulated all the way to the luggage compartment and caused the Control unit rear electrical and the ASD module to fail causing $2564.61 in repairs. Was wondering if this is the case of the issue [XXX] . When I read online there Is a lot of complaints about this. Has BMW ever acknowledged the issue? [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11624085

Mar 12, 2023Body & structure

I saw a similar NHTSA report for this car, so I will just repeat it here: <start of similar NHTSA REPORT>--------------------------------------------------------------------------------------------- NHTSA ID Number: 11440588 The door locks have become ‘sticky’. This means that when pulling on the interior door release handle, the lock is moving to a stuck position that is not permitting egress. While the solution of pushing the central unlock button is currently viable, it would not work in a total electrical failure, or a situation of a vehicle submersion in water. This is a dangerous situation, potentially leading to passenger entrapment if the motors or lock mechanism fail. <end of similar NHTSA REPORT>--------------------------------------------------------------------------------------------- Back to me: I have owned the car for roughly 2 years. The car has 72,000 miles on it. At first the problem was intermittent - less than 5% of the time. Recently, it is up to over 50% of time. A quick look at the BMW message boards shows that this is a widespread problem. There should be a recall on this extremely dangerous defect.

NHTSA ODI 11511436

Nov 16, 2021Body & structure

The door locks have become ‘sticky’. This means that when pulling on the interior door release handle, the lock is moving to a stuck position that is not permitting egress. While the solution of pushing the central unlock button is currently viable, it would not work in a total electrical failure, or a situation of a vehicle submersion in water. This is a dangerous situation, potentially leading to passenger entrapment if the motors or lock mechanism fail. A manual unlock MUST be possible, but as this vehicle has aged, has become problematic. I experience this most on days with significant temperature swings, and will note that I experienced the exact same problem in my 2005 BMW 3 series, which was reported and repaired at cost to me, Basic passenger safety should not require this repair or cost. The mechanism in question is flawed and deserves investigation.

NHTSA ODI 11440588

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

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 →