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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
A4824642063546_42024-04-04. Service bulletin. STEERING. This bulletin provides information on the identification of noises in the dynamic steering.
A0124142071243_22024-04-04. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This bulletin provides information when there are whistling noises from the turbo charger at 1500 - 2200 RPM, and approximately 70% load.
A9424742073332_12024-04-04. Service bulletin. UNKNOWN OR OTHER; STEERING. This bulletin provides information if there is noise when steering the vehicle.
A9424722073282_12024-04-04. Service bulletin. UNKNOWN OR OTHER; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information on visual concerns with the headlight lens.
A9124842072457_22024-04-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information when the DTC B1916F5 is entered in address word 0075.
A4024752047920_92024-04-04. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; UNKNOWN OR OTHER. This bulletin provides information from the front end and dash panel are heard when the vehicle is moving.
A1924552061918_62024-04-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT; UNKNOWN OR OTHER. This bulletin provides information when the low coolant light is on but the coolant level is within specifications.
A1324242061461_92024-04-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR:INTEGRATED STARTER(OTHER THAN PROPULSION). This bulletin provides information for when the starter/generator drive belt is noise or came off; DTC P2BA300 may be stored in the ECM.
A0124122071199_32024-04-04. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE. This bulletin provides information when the MIL is illuminated, P045600 Very Small Leak detected - NVLD.
A9124822071923_22024-04-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; UNKNOWN OR OTHER. This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the radio plays when the vehicle is parked.
A5724332071735_32024-03-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This bulletin provides information when DTC B200047 is stored, and the message Engine Start system warning, OR Power unit start system warning is displayed.
A5724322072587_22024-03-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the message Safe CP is in the instrument cluster and DTC U110100, C115E54 is stored.
A9624922061932_72024-03-06. Service bulletin. LANE DEPARTURE: LANE KEEP: STEERING ASSIST. This bulletin provides information for when the message "Audi Active Lane Assist/Traffic Jam Assist: malfunction" appears, and DTC U112300 is stored in one of two control modules.
A9124702062466_42024-03-06. Service bulletin. EQUIPMENT; UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information when Apple CarPlay cannot be started using Wi-Fi connection (Wireless CarPlay).
A5524892062669_32024-03-06. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:SUPPORT DEVICE/STRUT; UNKNOWN OR OTHER. This bulletin provides information when there are noises coming from the trunk lid struts.
A3924582059057_72024-03-06. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). This bulletin provides information when quattro Ultra has vibrations or binding in tight turns.
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.
A9124622072901_12024-03-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides information when the wireless connection for the Audi Smartphone Interface drops out in specific areas.
A9124662071056_32024-03-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides information for when Outlook contacts are not accessible via the MMI with Apple devices.
A9124652071921_22024-03-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin requests that technicians create a record in the Pending Service Solutions database in instances where the incorrect time is shown on the instrument cluster, or the MMI display.
A9124632044694_32024-03-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin provides information pertaining to MMI Navigation database concerns.
A4324812067531_32024-03-06. Service bulletin. SUSPENSION. This bulletin provides information when DTCs B200FF0, B200FF1, B200FF3, or B200FF4, B200FF5 are stored in the J775 suspension control unit.
A9024752064983_72024-03-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; UNKNOWN OR OTHER. This bulletin provides information for when there is a pixel error in the Audi virtual cockpit.
A9024742065960_32024-03-06. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information for when the Audi virtual cockpit is distorted due to a broken screen.
441342202256372024-03-04. Service bulletin. SUSPENSION. Steering wheel shimmy, vibration and/or oscillation

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