BMW 320I 2015–2016 — technical service bulletin
Bulletin B513415 · NHTSA communication 10146895 · issued Oct 1, 2016
Technical service bulletin
communication type
Structure
component
2015–2016
model years
11
vehicle entries
Official summary
SERVICE ACTION: CHECK RIGHT SIDE REAR DOOR FOR WATER LEAK TIGHTNESS. The sound insulation on the right side rear door may not have been bonded properly. The right rear door sound insulation may not have been applied correctly and can cause water leaks.
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.