BMW 535I 2010–2014 — technical service bulletin
Bulletin 120412 · NHTSA communication 10150032 · issued Jul 1, 2013
Technical service bulletin
communication type
Engine
component
2010–2014
model years
23
vehicle entries
Official summary
N55: Idle Fluctuates Briefly After a Cold Engine Start. Under certain engine cold starts, the engine idle may fluctuate during the first 10-20 seconds of operation before becoming stable. No faults will be stored in this situation, which will usually only occur at specific engine temperatures, making it difficult to reproduce in the workshop. Unfavorable DME software calibration
Vehicles covered
- 2011 BMW 535I
- 2012 BMW 535I
- 2013 BMW 535I
- 2014 BMW 535I
- 2010 BMW 535I Gran Turismo
- 2011 BMW 535I Gran Turismo
- 2012 BMW 535I Gran Turismo
- 2011 BMW 535I US
- 2012 BMW 640I
- 2013 BMW 640I
- 2014 BMW 640I
- 2012 BMW Activehybrid 5
- 2013 BMW Activehybrid 5
- 2011 BMW X3
- 2012 BMW X3
- 2013 BMW X3
- 2011 BMW X5
- 2012 BMW X5
- 2013 BMW X5
- 2011 BMW X6
- 2012 BMW X6
- 2013 BMW X6
- 2014 BMW X6
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.