BMW TSB #B652615
2015 BMW M235i
Affected Component: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
- 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.