BMW i3 2014–2021 — technical service bulletin
Bulletin B512420 · NHTSA communication 10181227 · issued Sep 1, 2020
Technical service bulletin
communication type
Visibility
component
2014–2021
model years
10
vehicle entries
Official summary
SERVICE ACTION - RENEW INTERIOR MIRROR HOLDER: The bonding of the interior mirror holder was not performed correctly. Incorrect bonding during production.
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.