BMW 320I 2012–2013 — technical service bulletin
Bulletin 510814 · NHTSA communication 10148268 · issued Apr 1, 2014
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
6
vehicle entries
Official summary
Service Action: Repair Corrosion Protection in Engine Compartment. Various engine compartment battery cable mounting points are not sufficiently protected against corrosion. Lack of corrosion protection can lead to improper battery cable connections.
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.