Audi A8 2013–2015 — technical service bulletin
Bulletin A191671 2038045- · NHTSA communication 10091122 · issued Jun 23, 2016
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013–2015
model years
15
vehicle entries
Official summary
This technical service bulletin provides instructions for replacing the coolant thermostat with a new part number to resolve a stored dtc.
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.