Audi A6 2005 — technical service bulletin
Bulletin 870503 · NHTSA communication 10017654 · issued Oct 20, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2005
model years
1
vehicle entries
Official summary
Whining, howling noises from engine compartment. *tt
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.