Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
36,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 BMW 550 engine problems

engine problem

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2012 BMW 550 Owner Comments

problem #3

Aug 122016


  • 58,700 miles


I was driving at about 65 mph on a highway uphill, engine completely stalled, no power, got a message "drive-train malfunction, no maximum output, drive moderately". I was surrounded by cars/semi trucks, very dangerous situation. Managed to pull over on the should. Could not restart car, got a message "automatic start/stop deactivated: Engine will not start automatically. Press the start/stop button to start the engine." About 30 mins after engine stalled, I finally restarted the car. Continued to drive on the highway for about 10 miles @ 60-65 mph. At a local street, as I slowed down to approach a traffic light, engine stalled again, no power, car stopped in the middle of road, got the two same messages, could not start car. About 30 mins after engine stalled, I finally started the car.

- Blacksburg, VA, USA

problem #2

Dec 222014

550 8-cyl

  • 40,800 miles
The car threw a drive train malfunction code which happens weekly on these engines and the car jumped a lane as it misfired and went into limp driving mode. If there was cars next to me there would have been a crash. Since then BMW has issued a customer campaign on the N63 engine effecting thoughts of cars. They are changing tons of parts from injectors to fuel rails. It should be a full blown recall and the NHTSA should get involved on this. My car has been in the shop since 12/23 and still has not been repaired correctly. I have a feeling you are going to be getting thousands of these complaints against BMW. They need to be held accountable for these failures.

- Hopewell Junction , NY, USA

problem #1

Sep 112014


  • 8,500 miles
The contact owns a 2012 BMW 550I. The vehicle stated that while driving at 30 mph, the vehicle stalled as all the warning lights illuminated. The vehicle failed to restart after numerous attempts. The vehicle was taken to a dealer where it was diagnosed that the vehicle was hydro-locked. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 8,500. The VIN was not available.

- Parker, AZ, USA

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