BMW 330I 2019–2020 — technical service bulletin
Bulletin B541519 · NHTSA communication 10170583 · issued Dec 1, 2019
Technical service bulletin
communication type
Visibility
component
2019–2020
model years
3
vehicle entries
Official summary
GROANING NOISE FROM SUNROOF: A groaning noise is present from the sunroof glass panel while driving over rough road surfaces or during body flex. The noise may also be present while the sunroof is opening into the vented position. Interference between the sunroof glass panel perimeter seal and the vehicle roof.
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.