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What 33 owners told NHTSA about the 2012 BMW 335i

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 (33)Crash / fire / injury (2)Airbags (17)Engine (8)Seats (4)Steering (3)Electrical system (2)Fuel system (2)Body & structure (1)Brakes (1)Speed control (1)Visibility & wipers (1)

1 of 33 complaints match · Engine · crash/fire/injury only · clear filters

Aug 10, 2015EngineCrash

ON SATURDAY 8/8/15, I WAS PARKING MY BMW 335I CAR TO GET GROCERIES, AND WHILE ENTERING THE PARKING SPOT, THE ENGINE BEGAN RACING OUT OF CONTROL. I HIT THE BRAKES HARD, BUT THE CAR WOULD NOT STOP. I TRIED TO SHIFT INTO NEUTRAL, BUT THE SHIFT CONTROL WAS LOCKED IN DRIVE AND WOULD NOT MOVE. LASTLY I FINALLY HIT THE STOP ENGINE BUTTON, AND THE CAR FINALLY STOPPED, BUT NOT AFTER I HAD BUMPED INTO THE CAR IN FRONT OF ME IN MY PARKING SPACE. AS I WAS RESTING AGAINST THE BUMPER OF THE CAR IN FRONT OF ME, I HAD BEEN ABLE TO MOVE THE SHIFTER AFTER STOPPING THE CAR'S ENGINE INTO PARK, AND RE-STARTED THE CAR. THE ENGINE IDLED AT 7000 RPM, TOTALLY RACING AGAIN. I TURNED THE ENGINE OFF AND SAT THERE FOR ABOUT TWO MINUTES. I TURNED THE ENGINE ON AGAIN, AND IT FINALLY IDLED NORMALLY AT 800-1000 RPM, PUT IT IN REVERSE, AND BACKED OFF THE BUMPER OF THE CAR IN FRONT OF ME. I GOT OUT, AND SAW NO DAMAGE THANKFULLY, BUT WAS VERY AFRAID OF THIS OUT OF CONTROL CAR BEHAVIOR THAT I EXPERIENCED. I NOW KNOW TO HIT THE STOP BUTTON IF THE BRAKES JUST DON'T WORK WELL ENOUGH IF THIS UNINTENDED ACCELERATION ISSUE HAPPENS AGAIN. I AM CONTACTING MY DEALERSHIP TO SEE IF THEY ARE AWARE OF THIS ISSUE IN THE 335I, AND SEE IF THEY CAN EFFECT A REPAIR.

NHTSA ODI 10747397

Working with the data? Download all 33 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 2012 BMW 335i verdict →