BMW 428I 2015–2017 — technical service bulletin
Bulletin B513616 · NHTSA communication 10146833 · issued Sep 1, 2016
Technical service bulletin
communication type
Wheels
component
2015–2017
model years
7
vehicle entries
Official summary
REWORKING THE PVC SEAM SEAL ON THE RIGHT REAR WHEEL ARCH. PVC Seam Sealer on the right rear inner wheel arch may not have been properly applied. Ineffective manufacturing procedure.
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.