BMW X7 2019–2020 — technical service bulletin
Bulletin B511520 · NHTSA communication 10175278 · issued Apr 1, 2020
Technical service bulletin
communication type
Engine
component
2019–2020
model years
2
vehicle entries
Official summary
WIND NOISE FROM ENGINE BULKHEAD: A wind noise can be heard when driving at highway speeds from the area around the lower windshield. Improper sealing of the engine bulkhead trim.
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.