BMW X3 2017 — technical service bulletin
Bulletin B640117 · NHTSA communication 10146556 · issued Feb 1, 2017
Technical service bulletin
communication type
Equipment
component
2017
model years
2
vehicle entries
Official summary
DELIVERY STOP SERVICE ACTION: CHECK REAR VENTS . Rear vents may not have been installed properly. Improper installation may result in water leakage into the luggage compartment. Manufacturing error.
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.