Bmw M550i Engine Problems
4 owner complaints filed with NHTSA across 3 model years.
Complaints by Year
Worst year: 2018. Best year: 2022.
Owner Reports
A representative sample of complaints filed with NHTSA.
ON 4/10/2018 VEHICLE WAS PARKED CAUGHT FIRE TOTTAL LOSE
TL* THE CONTACT OWNS A 2020 BMW M550I. THE CONTACT STATED THAT WHILE SLOWING DOWN TO STOP, THE AUTO STOP FUEL SAVING SYSTEM SUDDENLY ACTIVATED CAUSING THE VEHICLE TO ABRUPTLY STOP. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER WEST HERR BMW ...
On most modern BMW models (with Hot V V8 engines like the N/S 63) the coolant tank that is supposed to last at least the lifetime of the vehicle, only lasts about 40,000 Miles before cracking. The main issue is that the tank sits over th...
Throughout my ownership, I have adhered to BMW’s recommended maintenance schedule, including routine oil changes and inspections. At no point was I advised of any engine issues, oil leaks, or conditions that could potentially lead to c...