BMW 428I 2014–2017 — technical service bulletin
Bulletin B540216 · NHTSA communication 10147547 · issued Jul 1, 2016
Technical service bulletin
communication type
Structure
component
2014–2017
model years
11
vehicle entries
Official summary
GAP VISIBLE BETWEEN UPPER A-PILLAR COWL PANEL SEAL AND CONVERTIBLE TOP SEAL.. When the Retractable Hard Top (RHT) is closed, a gap is visible between the upper A-pillar seal and the cowl panel seal. This concern does not result in water or air leaks, it is only an appearance issue. Photo at left shows gap between Apillar seal and cowl panel seal (inside view). Photo at left shows gap between Apillar seal and cowl panel seal (outside view). Design of upper A-pillar cowl panel seal to convertible top seal.
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.