Audi A6 2012–2015 — technical service bulletin
Bulletin A8719932044717_9 · NHTSA communication 10163122 · issued Jul 12, 2019
Technical service bulletin
communication type
Equipment
component
2012–2015
model years
8
vehicle entries
Official summary
This bulletin provides instructions on correcting a high-pitched buzzing noise in the cabin when the fan speed is no higher than 2.
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.