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Service bulletins for the 2016 Audi S4

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
A5325102043016_42025-02-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when there are visible wires in the interior.
A8724932076287_12025-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the control functions in the vehicle are restricted.
A2724842074729_22025-01-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information in circumstances where there are noises/vibration from front of vehicle in dynamic mode.
A9624072056019_32024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate.
A9324342074808_22024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9124872024323_112024-12-04. Service bulletin. ELECTRICAL SYSTEM. This TSB Provides information when parking assistance provides false warnings.
A4524462072304_22024-10-28. Service bulletin. ELECTRICAL SYSTEM. This bulleitn provides information when there is an implausible signal in the ABS/ESC speed sensor.
A9324042074808_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9124432074929_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin proves information when the bluetooth does not work, adaption channel deactivated.
A9324042074808_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9124432074929_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin proves information when the bluetooth does not work, adaption channel deactivated.
SM 41-20242024-08-06. Other. ELECTRICAL SYSTEM. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
SM 40-20242024-08-06. Other. ELECTRICAL SYSTEM. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
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.
A9424822074347_12024-07-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen there are optical concerns with the tail lights.
A9124252018187_152024-07-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when there are speaker rattles, vibrations, or audio interference.A1
A9424822074347_12024-07-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen there are optical concerns with the tail lights.
A9124252018187_152024-07-02. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaiton when there are speaker rattles, vibrations, or audio interference.A1
A9424812073332_32024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is noise while steering.
A9024872073747_22024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are scratches or a coating on the cover of the instrument cluster, or if there are particles inside the housing.
A9424812073332_32024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is noise while steering.
A9024872073747_22024-06-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are scratches or a coating on the cover of the instrument cluster, or if there are particles inside the housing.
A9123062024323102024-01-04. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE. This bulletin provides information when the parking assistance provides false warnings.
A4523362072304_12024-01-04. Service bulletin. UNKNOWN OR OTHER; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; ELECTRICAL SYSTEM:ADAS:HILL DESCENT ASSIST:SENSOR. This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.
A9023102059891_42023-04-06. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; ELECTRICAL SYSTEM. This bulletin states that it takes about 20 seconds after switching the ignition on for the Audi Pre Sense symbol advising that "Audi pre sense not available at the moment"

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