BMW 528I 2012–2014 — technical service bulletin
Bulletin 650613 · NHTSA communication 10149489 · issued Apr 1, 2013
Technical service bulletin
communication type
Electrical System
component
2012–2014
model years
17
vehicle entries
Official summary
CHAMP2: Integrated Cooling Fan Is Noisy Intermittently. Intermittently, the cooling fan integrated in the CHAMP2 head unit (Radio Professional) is noisy. * More noticeable after the ignition is turned off * The cooling fan runs for approx. 6 minutes (until CHAMP2 enters sleep mode), depending on the ambient temperature Settings of the fan characteristics: the fan keeps running after the ignition is turned off
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.