BMW 428I 2014–2016 — technical service bulletin
Bulletin B652015 · NHTSA communication 10147834 · issued Nov 1, 2015
Technical service bulletin
communication type
Equipment
component
2014–2016
model years
8
vehicle entries
Official summary
Noise from speaker grills/ surrounds. There may be interference noises (rattles, squeaks, clicking) from the front or rear speaker grill/surrounds when the audio is on. CAUSE ? Contact between front door panel or speaker grill/surround with the speaker cone. ? Contact between the front door panel armrest support and trim for the folding compartment. ? Contact between the rear speaker grill/surround with the speaker cone.
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.