BMW 320I 2012–2013 — technical service bulletin
Bulletin 610713 · NHTSA communication 10150040 · issued Jul 1, 2013
Technical service bulletin
communication type
Electrical System
component
2012–2013
model years
6
vehicle entries
Official summary
Service Action: Repair Corrosion Protection on the Trunk B+ Connector. The corrosion protection on the outside of the trunk (back of rear right-hand wheel arch) around the battery positive connector is insufficient, and leads to corrosion on the body.
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.