WenmarOpen by Wenmar Pro

Service bulletins for the 2018 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
A9024432059863_42024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informatoin when Audi pre sense restricted message appears in the instrument cluster, no DTCs.
A6424022020552_132024-12-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information regarding cleaning exterior glass.
A5024152062633_32024-12-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information when creaking noises are heard when body twists during braking or steering maneuvers.
A4324002067531_52024-12-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the DTCs B200FF0 to B200FF5 are stored in the J775 suspension control unit.
A0024992070568_32024-12-04. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
A0024982075515_22024-12-04. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin advises that fuel additives are not permitted.
CampTip_RNA_Audi2024-11-06. Other. UNKNOWN OR OTHER. Vehicle Concerns Before Recall Repair Available
A5724652022032_112024-11-06. Service bulletin. STRUCTURE:BODY. This bulletin provides diagnostic information regarding the locking system.
A3924752075681_12024-11-06. Service bulletin. POWER TRAIN. This bulletin provides information when there are droning noises/vibrations in tight corners, vehicles with PR number GH4 (quattro with ultra technology).
A3924732059057_122024-11-06. Service bulletin. POWER TRAIN. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
A1524532075530_12024-11-06. Service bulletin. ENGINE. This bulletin provides informatin when the engine does not run smoothly at idling speeds.
A1024282059446_72024-11-06. Service bulletin. ENGINE. This bulletin provides information when oil is lost from the filler cap.
A0024942075515_12024-11-06. Service bulletin. ENGINE. This bulletin states that the use of fuel additives is not permitted.
A9024302058077_92024-10-28. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information about the Audi pre sense warning, warning jolt and/or brake engagement.
A8724892041717_112024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information pertaining to the GFF test plan required for A/C compressore replacements, regardless of the concern.
A6624122060333_52024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides informaiton when the exterior black optic trim is discolored.
A5124312068999_22024-10-28. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is visible corrosion at the joint between the roof and roof side member.
A4824742055733_52024-10-28. Service bulletin. STEERING. This bulletin provides informatin when there is a squeaking noise from the rubber boot of the intermediate steering shaft.
A4824732075199_12024-10-28. Service bulletin. STEERING. This bulletin provides information when there is a prompt to take over steering; hands off detection.
A4824722028220_122024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information regarding steering wheel visual damage.
A4624592069078_22024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides informaion regarding zirconium inserts in the bake piston for vehicle equipped with ceramic brakes.
A4624572051095_92024-10-28. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on frequency analysis.
A4524492075120_12024-10-28. Service bulletin. SERVICE BRAKES. This bulletin provides information regarding the general approach to brakes rubbing.
A4524462072304_22024-10-28. Service bulletin. ELECTRICAL SYSTEM. This bulleitn provides information when there is an implausible signal in the ABS/ESC speed sensor.
A4424082074846_22024-10-28. Service bulletin. STEERING. This bulletin provides information when there are vibrations and rotational steering wheel vibrations.

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