BMW X3 2018–2020 — technical service bulletin
Bulletin B510920 · NHTSA communication 10174013 · issued Apr 1, 2020
Technical service bulletin
communication type
Back Over Prevention
component
2018–2020
model years
3
vehicle entries
Official summary
G01 WIND NOISE DIAGNOSIS: Customer complaint of hissing or wind noise present in the interior of the vehicle at speeds above 60 mph. CAUSE The following areas and defects may cause this complaint: 1. A pillar gutter trim not correctly installed. 2. Door seal not correctly installed or a gap exists between the seal and the body. 3. Side view mirror cover deformity. 4. Improper door adjustment. 5. Side view mirror assembly to door alignment and triangle seal deformity.
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.