Audi A6 2013–2016 — technical service bulletin
Bulletin A171779 2040644- · NHTSA communication 10119365 · issued Jan 19, 2017
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2013–2016
model years
12
vehicle entries
Official summary
This bulletin provides repair instructions on diagnosing and replacing a leak in the crankcase breather module.
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.