BMW 640I 2012–2016 — technical service bulletin
Bulletin B612215 · NHTSA communication 10147827 · issued Nov 1, 2015
Technical service bulletin
communication type
Visibility
component
2012–2016
model years
14
vehicle entries
Official summary
Rear Window Defroster is Inoperative. The rear window defroster no longer works. Fuse 203 (30A) in the rear power distribution box is blown and the power distribution box may show signs of overheating. Excessive power consumption of the rear window defroster overloads the circuit.
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.