BMW 525D Xdrive 2009–2014 — technical service bulletin
Bulletin B121016 · NHTSA communication 10151254 · issued Apr 1, 2016
Technical service bulletin
communication type
Engine and Engine Cooling
component
2009–2014
model years
21
vehicle entries
Official summary
"N63T Drivetrain Malfunction Message after Driving for Several Hours. F01, F02, F07 Target integration level: F001-16-07-501 or higher ""Drivetrain Malfunction"" message displayed with reduced engine power. Erroneous misfire faults may be stored for cylinders 3 and 6. The situation is most likely to occur after driving for several hours at constant highway speeds with light throttle (low load and low engine speed). Cycling ignition off and back on again clears the ""Drivetrain Malfunction"" warning DME software (plausibility check error)"
Vehicles covered
- 2014 BMW 525D Xdrive
- 2013 BMW 550I
- 2014 BMW 550I
- 2010 BMW 550I Gran Turismo
- 2011 BMW 550I Gran Turismo
- 2012 BMW 550I Gran Turismo
- 2012 BMW 650I
- 2013 BMW 650I
- 2014 BMW 650I
- 2009 BMW 750I
- 2010 BMW 750I
- 2011 BMW 750I
- 2012 BMW 750I
- 2013 BMW 750I
- 2014 BMW 750I
- 2009 BMW 750LI
- 2010 BMW 750LI
- 2011 BMW 750LI
- 2012 BMW 750LI
- 2013 BMW 750LI
- 2014 BMW 750LI
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.