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Service bulletins for the 2023 Audi A4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

868 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine control module are shown. Show all

Bulletins, newest first
A0124092072710_22024-03-06. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This Pending Service Solutions (PSS) requests that technicians enter a record in the PSS database in instances where the Engine control unit drive system stores faults P060C00 and U041600.
A2024652069834_32024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This repair authorization provides information on N80 purge line performance P04F000.
A0124062072710_12024-02-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This PSS requests that technicians add a record to the Pending Service Solutions database in instances where the Engine control unit has faults P060C00 and U014600.
A0123842070571_22023-11-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. This bulletin requests that technicians create a Pending Service Solutions record in the Pending Service Solution database in instances where "drive System Fault" with DTC P060C00 Internal Control Module Performance is stored in the ECM.
A2723602067906_32023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin provides information for when DTC P0A7D00 is stored.
A1323172061461_72023-04-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.