Audi A8 2008–2015 — technical service bulletin
Bulletin A191786 2042328- · NHTSA communication 10128349 · issued May 22, 2017
Technical service bulletin
communication type
Equipment
component
2008–2015
model years
10
vehicle entries
Official summary
This bulletin contains repair instructions for when the tolerences of the opening spring in the thermostat are not enough.
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.