BMW 328I 2013–2016 — technical service bulletin
Bulletin B513215 · NHTSA communication 10147774 · issued Oct 1, 2015
Technical service bulletin
communication type
Structure
component
2013–2016
model years
8
vehicle entries
Official summary
Water Ingress into the Luggage Compartment after opening the Tailgate. A small quantity of water may enter the luggage compartment after opening the tailgate CAUSE The water drain hose(s) on the rear spoiler is blocked.
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.