BMW 528I 2007–2015 — technical service bulletin
Bulletin 121712 · NHTSA communication 10148256 · issued Apr 1, 2014
Technical service bulletin
communication type
Power Train
component
2007–2015
model years
40
vehicle entries
Official summary
N52T / N55 with 8HP45: Delay in Engine Response. A customer may complain of a delay in engine response after decelerating at low road speeds and then reaccelerating. This can occur when the transmission remains in a high gear due to a delay in the transmission downshifting. This situation can be more noticeable while driving on roads with slight turns or with an increasing gradient. Unfavorable EGS and DME software
Vehicles covered
- 2011 BMW 528I
- 2011 BMW 535I
- 2012 BMW 535I
- 2013 BMW 535I
- 2014 BMW 535I
- 2015 BMW 535I
- 2010 BMW 535I Gran Turismo
- 2011 BMW 535I Gran Turismo
- 2012 BMW 535I Gran Turismo
- 2011 BMW 535I US
- 2013 BMW 550I
- 2014 BMW 550I
- 2015 BMW 550I
- 2010 BMW 550I Gran Turismo
- 2011 BMW 550I Gran Turismo
- 2012 BMW 550I Gran Turismo
- 2012 BMW Activehybrid 5
- 2013 BMW Activehybrid 5
- 2011 BMW X3
- 2012 BMW X3
- 2007 BMW X5
- 2008 BMW X5
- 2009 BMW X5
- 2010 BMW X5
- 2011 BMW X5
- 2012 BMW X5
- 2013 BMW X5
- 2010 BMW X5 M
- 2011 BMW X5 M
- 2012 BMW X5 M
- 2008 BMW X6
- 2009 BMW X6
- 2010 BMW X6
- 2011 BMW X6
- 2012 BMW X6
- 2013 BMW X6
- 2014 BMW X6
- 2010 BMW X6 M
- 2011 BMW X6 M
- 2012 BMW X6 M
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.