BMW 330E 2018–2021 — technical service bulletin
Bulletin B511318 · NHTSA communication 10188944 · issued Feb 1, 2021
Technical service bulletin
communication type
Visibility
component
2018–2021
model years
13
vehicle entries
Official summary
LIN BUS FAULTS WITH EXTERIOR REARVIEW MIRROR GLASS DAMAGE: Faulty exterior rearview mirror electronics have created a short on the LIN bus, damaging the mirror glass and causing functional errors in power window and exterior mirror operation.
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.