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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

Bulletins, newest first
A9124322018187_162024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when there are speaker rattles, vibrations or audio interference in the sound system.
A9124302059528_112024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the ecall LED is red/ecall Fault, with DTC B200000.
A9024172059891_72024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the restricted function icon for Audi pre sense is displayed after the engine starts.
A9024142064844_42024-08-06. Service bulletin. ENGINE. This bulletin provides information when the Audi virtual cockpit remains blank at startup.
A8724812064077_52024-08-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the air conditioning cooling output is insufficient; leak on air conditioning system evaporator.
A8724792067716_22024-08-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the air conditioning does not cool.
A8224002041717_102024-08-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides informatin for the GFF test plan that is requied for AC compressor replacements.
A7224572074721_12024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information about noises from the backrest of the front seat.
A7224562064695_42024-08-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is an entry/exit assistance comfort concern.
A5724532027368_62024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the door handle touch sensors (Audi advanced key) inoperative.
A5724492071735_62024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is an Engine Start system warning, or a power unit start system warning, B200047.
A5724482074172_12024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the message "Vehicle Lighting" is displayed in the instrument cluster.
A5724472073601_42024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informatoim when the message "Safe CP" appears in the cluster; DTC U110100, C115E54, U111800.
A4824682028220_112024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is visual damage on the steering wheel.
A4324922067531_42024-08-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the DTCs B200FF0 to B200FF5 are stored in the J775 suspension control unit.
A3924652059057_102024-08-06. Service bulletin. POWER TRAIN. This bulletin provides informatino when there are vibrations or binding in tight turns with quattro Ultra.
A3924642074618_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there are vibration or binding in tight turns with quattro Ultra.
A3924632059057_92024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there are vibrations or binding in tight turns.
A3724212074822_12024-08-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides service information pertaining to noises from wheel input shaft/drive shaft.
A3424692067653_82024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is function restriction with event memory P071800 - P276800.
A2724762074729_12024-08-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there are noises/vibration from the front of the vehicle while in dynamic mode.
A2424612074810_12024-08-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is a fault shown; Engine: start/stop system, and the start system is not working; mileage below 50 km/32 miles.
A1324252061461_102024-08-06. Service bulletin. ENGINE. This bulletin provides information when the starter/generator drive belt is noisy or came off.
A0124312072273_22024-08-06. Service bulletin. ENGINE. This bulletin provides information when the MIL is on; electric changeover valve N316 - P2004, P2006, P2014, P2015.
A0124302074640_12024-08-06. Service bulletin. ENGINE. This bulletin provides information when the defrost function deactivates after 5-10 seconds and/or MMI settings are lost.

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