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Service bulletins for the 2020 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
AVin4Pin202404042024-05-07. Service bulletin. UNKNOWN OR OTHER. Noise from front door trim panel while driving Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst System,Bank1 Efficiency Below U060B00 - no com to G31 boost pressure sensor Airbag light on, DTCs B101704, B103604 Wind noise from front doors at highway speeds
AVin4Pin202404032024-05-07. Service bulletin. UNKNOWN OR OTHER. Noise from front door trim panel while driving Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst System,Bank1 Efficiency Below U060B00 - no com to G31 boost pressure sensor Airbag light on, DTCs B101704, B103604 Water intrusion from sunroof Wind noise from front doors at highway speeds
A9424762073332_22024-05-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information for when there is noise when steering.
A9124992073629_12024-05-07. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides information when the Apple CarPlay connection is dropped repeatedly in short intervals.
A9124982073627_12024-05-07. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there is a wrong way driver warning in the MMI with MIB3.
A9024852073747_12024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there are scratches, or a coating on the cover of the instrument cluster, or particles in the housing.
A9024842032113_92024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides general information regarding outside air temperature readings.
A9024832059335_52024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when there is noise from around the instrument cluster.
A7224542072225_22024-05-06. Service bulletin. UNKNOWN OR OTHER. This Pending Service Solution (PSS) requests that technicians enter a record into the PSS Database in instances where there is noise from the backrest of the front seat.
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.
A9124922073580_12024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information regarding ordering replacement parts for ConBox Low.
A9124902073135_22024-05-06. Service bulletin. UNKNOWN OR OTHER. This Pending Service Solution (PSS) requests that technicians create a PSS Database record in instances where the radio favorites are lost/shortcuts are greyed out in vehicles with MIB3.
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.
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.
AVIN4PIN202403052024-04-05. Service bulletin. EQUIPMENT:ELECTRICAL; UNKNOWN OR OTHER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS; STRUCTURE:BODY:DOOR. Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Temp sensor DTC P218500 Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst System, Bank1 Efficiency Below
A9124892069112_52024-04-04. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin provides information on various improvements for MIB 3.
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.
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.

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