BMW i3 2014–2018 — technical service bulletin
Bulletin B540219 · NHTSA communication 10159132 · issued Mar 1, 2019
Technical service bulletin
communication type
Visibility
component
2014–2018
model years
5
vehicle entries
Official summary
RATTLE NOISE IN SUNROOF AT HIGH TEMPERATURES. A rattle noise may be heard from the sunroof area with ambient temperatures above 80°F with the sunroof glass in the vented position.
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.