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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.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
A9020362058077_22020-02-08. Service bulletin. SERVICE BRAKES; EQUIPMENT. This bulletin contains instructions for determining unexpected Audi pre sense interventions.
A0020332058030_22020-02-08. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains instructions for the Launch Process.
20TechReferncDoc2020-02-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Added SQ7, SQ8, & RS Q8 to titles & index
A9219242038151112020-01-08. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A0019312058030_12020-01-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This bulletin contains instructions for the Launch Process.
A9419182012749_12020-01-08. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Exterior lights, moisture accumulation 2013-2021 A3 Cabriolet, 2016-2018 Sportback, 2004-2005 A4 Cabriolet, 2004-2008 S4 Cabriolet, 2008 RS4 Cabriolet, 2010-2021 A4 allroad, 2018-2021 A5 Sportback, 2010-2012, 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2004-2006 A7, 2004-2011 S7, 2021 RS6 Avant, 2004-2006 S8
A0019292031473_22020-01-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for when car wash bristles are stuck in the headlights. 2015-2021 A3 Cabriolet, 2015-2018 A3 e-tron, 2011-2021 A4 allroad, 2018-2021 A5 Sportback, 2011-2012 and 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2021 RS6 Avant
20AUTIRECHAINS2020-01-08. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY. New document 2004-2020 A4 allroad, A6 allroad, A8L, R8 Spyder
20A4S4ALRDCSDEL2020-01-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Updated Phone Box Form 2020 A4 allroad
20TechReferncDoc2019-12-06. Service bulletin. EQUIPMENT. "ADDED A6 allroad to titles throughout document "
20A4S4ALRDTECREP2019-11-06. Service bulletin. EQUIPMENT. Vehicle Preparation Section: Changed Phone Box verbiage. Added Install Front license plate carrier (if necessary)*
ATUBody20192019-10-07. Service bulletin. EQUIPMENT. Body components - Examples of customer misuse
A0019262052680_22019-10-02. Service bulletin. EQUIPMENT. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage.
20AUUSMaint9202019-10-02. Service bulletin. EQUIPMENT. REMOVED Q3 40 TFSI from all references due to it not being produced. Additional Maintenance Items: ADDED S6 to Rear Axle - Change fluid every 60K.
20AUUSMaint9052019-10-02. Service bulletin. EQUIPMENT. REMOVED all references to SQ7 due to secrecy. 2020 A3, RS3, S3, A4, allroad, A5, RS5, S5, A6, S6, A7, S7, A8L, S8, Q3, Q5, SQ5, Q7, Q8, TT, TTS, TTRS, TT Roadster, R8, R8 Spyder
20AUTIREPRESCHT2019-10-02. Service bulletin. EQUIPMENT; TIRES. Added all models to chart 2020 A3 Sedan, S3 Sedan, RS3 Sedan, A3 e-tron Sportback, A4, S4, allroad, A5 Cabriolet, S5 Cabriolet, A5 Coupe, S5 Coupe, A5 Sportback, S5 Sportback, A6, S6, A7, S7, A8L, S8, e-tron, Q3, Q5, SQ5, Q7, Q8, R8 Coupe, R8 Spyder, TT Coupe, TTS Coupe, TTRS Coupe, TT Roadster
A9119762051720_32019-09-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for submitting a customer registration form for the Audi phone box to the customer's Mobile Network Operator.
20AUUSMaint8302019-09-09. Service bulletin. EQUIPMENT. Revised 2020 maintenance schedule. Includes R8 Spyder
20TechReferncDoc2019-09-09. Service bulletin. EQUIPMENT. A3, A4, A5, A6, A7, A8 L, e-tron, Q3, Q5, Q7, Q8, and TT added. R8: Lighting and Windshield Section: ADDED: "Correct aim if necessary" to "Test front washers (and headlight washers if equipped)." Audi connect® Section: REMOVED: "(if equipped)" from "Enable satellite map for navigation" 2020 A3, S3, RS3, A4, S4, allroad, A5, S5, RS5, A6, S6, A7, S7, A8L, S8, e-Tron, Q3, Q5, SQ5, Q7, Q8, R8 Coupe, R8 Spyder, TT, TTS, TTRS
20A4S4ALRDTECREP2019-09-09. Service bulletin. EQUIPMENT. New document
20A4S4ALRDCSDEL2019-09-09. Service bulletin. EQUIPMENT. New document
A6019322055443_12019-08-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for claiming Panoramic sunroofs. 2017-2022 A3, A3 Cabriolet, S3, A4, S4, A4 allroad, A5, A5 Cabriolet, S5, S5 Cabriolet, A5 Sportback, S5 Sportback, RS5, A6, S6, RS6, Q3, Q5, SQ5, Q7, and Audi e-tron quattro, 2017-2018 A3 e-tron, A7, A8, S7, S8, and RS8. 2019-2022 Q8
20ALLMDLVEHCOND2019-06-05. Service bulletin. EQUIPMENT. Audi Vehicle Condition Report - This document also applies to the 2020 A3 Cabriolet, S3, A4 Allroad, A5 Sportback, S5 Sportback, TT Roadster, TT RS and R8 Spyder.
20ALLMDLDTLREP2019-06-05. Service bulletin. EQUIPMENT. New Document - Vehicle detail report. Also includes: A3 Cabriolet, S3, A4 Allroad, A5 Sportback, S5 Sportback, TT Roadster, TT RS and R8 Spyder.

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