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Service bulletins for the 2023 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.

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

By type

By component

By trouble code

Only bulletins with type: Other are shown. Show all

Bulletins, newest first
DC_Audi_CF_ Airbag2026-04-07. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent warning regarding counterfeit replacement airbag inflators that are being installed in used vehicles.
SM 15-20252025-04-04. Other. LANE DEPARTURE: WARNING. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
Cust_reminder_44CT2025-02-05. Other. UNKNOWN OR OTHER. Owner notification – recall remedy available (catch-up mailing)
DC_44CT2025-01-07. Other. UNKNOWN OR OTHER. Update on Continental Tire Safety Recall – 44CT
CampTip_RNA_Audi2024-11-06. Other. UNKNOWN OR OTHER. Vehicle Concerns Before Recall Repair Available
SM 42-20242024-08-06. Other. STEERING. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
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.
SM 39-20242024-08-06. Other. ENGINE. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
AVIN4APIN202407152024-08-06. Other. UNKNOWN OR OTHER. Summary of all Audi Vin4Pin topics in June Corrosion on wheelhouse cover plate MIB3 - Stuck on loading user information when booting up Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B the front windows is noisy and/or binding Front door wind noise
DC_Q5 Hybrid2024-07-02. Other. UNKNOWN OR OTHER. This document provides clarity on the MY24 Audi Q5 Hybrid fault code with technical service bulletin release on Monday, June 24.
AVIN4APIN202406072024-07-02. Other. UNKNOWN OR OTHER. Summary of all Audi Vin4Pin topics in June Corrosion on wheelhouse cover plate Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B Front door(s) hard to close Front door wind noise the front windows is noisy and/or binding Front door wind noise the front windows is noisy and/or binding Water intrusion into cabin from kinked sunroof drain hose
DC_Q5 Hybrid2024-07-02. Other. UNKNOWN OR OTHER. This document provides clarity on the MY24 Audi Q5 Hybrid fault code with technical service bulletin release on Monday, June 24.
AVIN4APIN202406072024-07-02. Other. UNKNOWN OR OTHER. Summary of all Audi Vin4Pin topics in June Corrosion on wheelhouse cover plate Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B Front door(s) hard to close Front door wind noise the front windows is noisy and/or binding Front door wind noise the front windows is noisy and/or binding Water intrusion into cabin from kinked sunroof drain hose

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