Audi A6 2021–2022 — technical service bulletin
Bulletin Circular24IO 823 · NHTSA communication 10241487 · issued Aug 3, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
10
vehicle entries
Official summary
Circular revision to update work instructions with sensor part number detail in the event the colored dots are missing from the sensors.
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.