BMW X3 2011–2013 — technical service bulletin
Bulletin 611312 · NHTSA communication 10150121 · issued Mar 1, 2013
Technical service bulletin
communication type
Electrical System
component
2011–2013
model years
3
vehicle entries
Official summary
?100A Fuse in Rear Power Distribution Box Failed, Causing Electrical System Failure. Various functions of the electrical system fail. In rare cases, the vehicle cranks but may not start. The 100-amp fuse (F502) in the rear power distribution box (Z3), mounted on the battery, has failed.
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.