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Service bulletins for the 2024 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.

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

By type

By component

By trouble code

Bulletins, newest first
A5724382073135_42024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there is an Engine Start system warning or Power unit start system warning, B200047.
A9124942073582_12024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides general troubleshooting for connection complaints related to Apple CarPlay.
A9124932059528_82024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the DTC B200096 or B200000 is stored in the telematics control module; ConBox High.
A5724362073601_12024-05-06. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information when the message Safe CP appears in the instrument cluster; DTC U110100; C115E54.
A5724342017082_12024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the remote control key is inoperative.
A3924602059057_82024-05-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is binding or vibrations in tight turns in vehicles equipped with quattro Ultra.
A2724712067906_52024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when DTC P0A7D00 is stored.
A0124182072710_32024-05-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This Pending Service Solution (PSS) requests that technicians enter a record in the PSS database in instances where engine control unit drive system faults P060C00, and U041600 are stored.
SM 19-20242024-04-05. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A9424732012749172024-04-05. Service bulletin. EXTERIOR LIGHTING; UNKNOWN OR OTHER. This bulletin provides information when the exterior lights have moisture accumulation.
A8724702064077_42024-04-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REFRIGERANT HOSES AND FITTINGS. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
A9124882073333_22024-04-04. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. This bulletin provides information when the wireless Audi Smartphone interface is inoperable.
A7024892044417_12024-04-04. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. This bulletin provides information when there are noises from the headliner/sunroof area.
A4824642063546_42024-04-04. Service bulletin. STEERING. This bulletin provides information on the identification of noises in the dynamic steering.
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.
A9124852073333_12024-04-04. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. This bulletin provides information when the Audi Wireless Smartphone interface is inoperable.
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.
A4224562073321_12024-04-04. Service bulletin. UNKNOWN OR OTHER; SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY. This bulletin provides information when the rubber coating on the rear axle subframe bearing is cracked.
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.
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.
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.

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