Audi A6 2014–2016 — technical service bulletin
Bulletin A231745 2049856- · NHTSA communication 10133223 · issued Dec 20, 2017
Technical service bulletin
communication type
Engine and Engine Cooling
component
2014–2016
model years
12
vehicle entries
Official summary
This bulletin contain repair instructions for the TDI emission modification.
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.