BMW 228I 2014–2017 — technical service bulletin
Bulletin B652615 · NHTSA communication 10151201 · issued Mar 1, 2016
Technical service bulletin
communication type
Equipment
component
2014–2017
model years
18
vehicle entries
Official summary
Hissing Noise from Speakers when Radio Volume is Turned Down. There is an audible hissing noise from the speakers when there is no active audio source. This noise is most apparent with the engine and climate system fan turned off. Software in the HK HiFi amplifier.
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.