BMW 328D 2014–2015 — technical service bulletin
Bulletin 640115 · NHTSA communication 10147088 · issued Feb 1, 2015
Technical service bulletin
communication type
Visibility
component
2014–2015
model years
2
vehicle entries
Official summary
SI B64 01 15February 2015 Heating and Air Conditioning Technical Service This Service Information bulletin supersedes SI B64 01 15 dated January 2015. designates changes to this revision SUBJECT Whirring/Buzzing Noise Coming from Heating and Air Conditioning System. The customer may complain of a whirring/buzzing noise coming from the heating and air conditioning and/or the instrument cluster. Vibrations from the air conditioning low-pressure line
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.