Audi A4 2019–2021 — technical service bulletin
Bulletin A1323162061461_6 · NHTSA communication 10230588 · issued Jan 3, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2021
model years
8
vehicle entries
Official summary
This bulletin provides instructions for when there is a grinding/squeaking/tweeting noise coming from the engine compartment OR there is a message in the driver information system stating "Electrical system Malfunction! Please go to workshop". DTC P2BA300 may be stored.
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.