BMW 528I 2011–2012 — technical service bulletin
Bulletin 121213 · NHTSA communication 10149585 · issued May 1, 2013
Technical service bulletin
communication type
Electrical System
component
2011–2012
model years
3
vehicle entries
Official summary
N52T Alternator-Related Malfunctions: Overcharging or Undercharging. Many different complaints may arise from alternator-related malfunctions, due to charging sporadically or not charging at all.
Vehicles covered
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.