2012 BMW 328I engine and engine cooling problems
16 owner complaints filed with NHTSA name the engine and engine cooling on the 2012 BMW 328I — 12% of all complaints for this model year.
What owners report
“The contact owns a 2012 BMW 328I. The contact stated that while starting the vehicle, the engine overheated, with a message that the engine was overheating displayed. The contact stated that while driving at an undisclosed speed, the vehicle stalled with the same message displayed. The vehicle was…”
filed May 5, 2025
“The contact owns a 2012 BMW 328I. The contact stated that while driving at an undisclosed speed, the temperature gauge started to indicate that the engine was overheating, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was not…”
filed Apr 29, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
B170121 · Service Bulletin/Repair Instructions · issued Apr 1, 2022
Engine and Engine Cooling problems in other 328I years
| Year | Reports | Share |
|---|---|---|
| 2016 328I | 13 | 23% |
| 2015 328I | 42 | 34% |
| 2014 328I | 29 | 19% |
| 2013 328I | 44 | 17% |
| 2011 328I | 175 | 31% |
| 2010 328I | 39 | 25% |
| 2009 328I | 21 | 11% |
| 2008 328I | 33 | 14% |
| 2007 328I | 35 | 9% |
| 2000 328I | 5 | 4% |
| 1999 328I | 1 | 1% |
| 1998 328I | 2 | 8% |
Other reported problem areas on the 2012 BMW 328I
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.