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Service bulletins for the 2020 Audi A4

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.

1073 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
20TechReferncDoc2019-12-06. Service bulletin. EQUIPMENT. "ADDED A6 allroad to titles throughout document "
A4419722056386_22019-12-06. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. 2019-2021 A3 Cabriolet, 2019-2021 A5 Sportback, 2019-2021 RS5 Cabriolet, 2019-2021 S5 Sportback, 2021 RS6 Avant
A4419712022563_12019-12-06. Service bulletin. WHEELS. This bulletin provides information regarding vibrations or movement that are felt in the wheel. 2015-2020 A3 Cabriolet, 2016-2018 A3 Sportback, 2008-2009 S4 Cabriolet, 2008 and 2010 RS4 Cabriolet, 2018-2020 A5 Sportback, 2010-2012 and 2018-2020 RS5 Cabriolet, 2018-2020 S5 Sportback, 2008 A7, 2008-2011 S7
SM 99-20192019-11-07. Service bulletin. UNKNOWN OR OTHER. The part number listed in the document are to be returned if they meet the criteria provided.
20TechReferncDoc2019-11-07. Service bulletin. UNKNOWN OR OTHER. VEHICLE PREPARATION SECTION: ADDED FOR ALL MODELS: "Install front license plate carrier (if necessary) *Retain any removed trim required for carrier installation and give to the customer. If no front license plate carrier is necessary ensure the carrier remains in the trunk for the customer" Audi R8 Spyder 2020
A6919432056406_12019-11-07. Service bulletin. AIR BAGS. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored. 2015-2020 A3 Cabriolet, 2016-2018 A3 Sportback, 2018-2020 A5 Sportback, 2018-2020 RS5 Cabriolet, 2018-2020 S5 Sportback
A4419702056386_12019-11-07. Service bulletin. WHEELS. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. 2019-2021 A3 Cabriolet, A5 Sportback, RS5 Cabriolet, S5 Sportback, 2021 RS6 Avant
20AUUSMaint1012019-11-07. Service bulletin. UNKNOWN OR OTHER. ADDITIONAL MAINTENANCE ITEMS: ADDED "Change Fluid" at 120,000 miles or 10 years, whichever occurs first to Front Differential - R8 Coupe, R8 Spyder only
A9119962055945_32019-11-07. Service bulletin. UNKNOWN OR OTHER. This bulletin contains repair instructions for when the warning message 'SOS Emergency call function deactivated' is seen in the instrument cluster.
A4019972018194_92019-11-07. Service bulletin. UNKNOWN OR OTHER. This bulletin contains repair instructions for leaking shock absorbers.
A0019272045316_42019-11-07. Service bulletin. UNKNOWN OR OTHER. This bulletin contains information for diagnosing the Start/Stop system.
20A4S4ALRDTECREP2019-11-06. Service bulletin. EQUIPMENT. Vehicle Preparation Section: Changed Phone Box verbiage. Added Install Front license plate carrier (if necessary)*
20A4S4ALRDCSDEL2019-11-06. Service bulletin. UNKNOWN OR OTHER. Delivery Inspection Section: Changed verbiage for MYAudi Registration. ADDED Key user pairing.
A0019252011732_12019-10-21. Service bulletin. ELECTRICAL SYSTEM. 00 Software Version Management (SVM), operating instructions
A9119932037087_42019-10-15. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for enabling text message notifications through the MMI system.
A9419132017806_12019-10-07. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information regarding when the message 'Vehicle lights: malfunction' appears with DTC 03280, 01800, or B126AF0.
A9119952056076_32019-10-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. This bulletin contains instructions for when there is no diagnostics communication with the ConBox.
A9119942055945_22019-10-07. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains repair instructions for when the warning message 'SOS Emergency call function deactivated' is seen in the instrument cluster.
A9119902056076_22019-10-07. Service bulletin. EQUIPMENT. This bulletin contains instructions for when there is no diagnostics communication with the ConBox.
ATUBody20192019-10-07. Service bulletin. EQUIPMENT. Body components - Examples of customer misuse
A9119882024323_62019-10-03. Service bulletin. FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
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

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