Audi A4 2021–2023 — technical service bulletin
Bulletin A2023552069834_1 · NHTSA communication 10233365 · issued Mar 27, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
15
vehicle entries
Official summary
This repair authorization states to contact the Technical Assistance Center in instances where the MIL is on and DTC P04F000 may be stored in the ECM.
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.