Audi A6 2013–2016 — technical service bulletin
Bulletin AWA 19-03 · NHTSA communication 10160829 · issued May 24, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013–2016
model years
16
vehicle entries
Official summary
This bulletin explains the warranty extension for the crankcase ventilation valve on certain 3.0L and 4.0L vehicles.
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.