2021 Audi A4 Technical Service Bulletins

1,057 technical service bulletins (TSBs) are on record for the 2021 Audi A4. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038130Sep 25, 2026Other or unknown. This bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
• 11038129Sep 25, 2026Engine. This bulletin provides information when the starter/generator drive belt is noisy or came off.
• 11038027Sep 25, 2026Other or unknown. This bulletin provides information for reporting safety related information to the manufacturer.
• 11038042Sep 22, 2026Steering. This bulletin provides information about vibrations and rotational steering vibrations.
• 11038031Sep 22, 2026Steering. This bulletin provides informaiton when DTC B200FF0 is stored.
• 11038024Sep 22, 2026Visibility (wipers, defrost, mirrors). This bulletin provides service information regarding exterior glass cleaning.
• 11038056Sep 18, 2026Body and structure. This bulletin provides information about billing for a broken sunroof glass panel.
• 11038032Sep 18, 2026Electrical system. This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
• 11038025Sep 15, 2026Other or unknown. This bulletin provides information when the license plate mounting bracket threded inserts are stripped.
• 11038039Sep 14, 2026Body and structure. This bulletin provides information when there are stails/marks on the sill panel trim.
• 11038033Sep 8, 2026Body and structure. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
• 11038026Sep 8, 2026Other or unknown. This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones.
• 11038061Sep 2, 2026Electrical system. This bulletin provides information regarding fault finding and repair information for electric tailgate.
• 11036973Aug 27, 2026Electrical system. This bulletin provides general information about the current tpp issues for Audi connect.
• 11036917Aug 26, 2026Other or unknown. This bulletin provides information when the horn sound quality is poor.
• 11036910Aug 26, 2026Electrical system. This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
• 11036933Aug 21, 2026Other or unknown. A particularly noticeable factor is the vibration of the air column in a tire. When a tire starts to vibrate because of the road contact, this can lead to cavity resonances inside the tire that are transmitted via the wheel rim and the running gear to the vehicle interior. Because of the vehicle design and due to the specific properties of different wheel and tire combinations, a whining noise can occur at high…
• 11036919Aug 21, 2026Wheels. This bulletin provides information when there is a wheel/tire imbalance.
• 11036911Aug 21, 2026Brakes. This bulletin provides information for all models regarding brake sounds.
• 11036909Aug 21, 2026Brakes. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
• 11036908Aug 21, 2026Body and structure. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
• 11036906Aug 21, 2026Brakes. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
• 11036905Aug 21, 2026Electrical system. This bulletin provides information when there is an issue with wireless charging/wireless charging is not working.
• 11036903Aug 21, 2026Steering. This bulletin provides service infomraiton regardin gthe identifaction of noises with dynamic steering.
• 11036902Aug 21, 2026Steering. This bulletin provides service information when thre are engine noises in the vehicle interior.
• 11036922Aug 20, 2026Body and structure. This bulletin provides information about leather care and seat repair.
• 11036934Aug 11, 2026Other or unknown. This bulletin provides information when there is a paint issue on alloy wheels.
• 11036921Aug 11, 2026Brakes. This bulletin provides information about the general approach for brake vibration concerns.
• 11036915Aug 11, 2026Visibility (wipers, defrost, mirrors). This bulletin provides information on the GFF test plan required for AC compressor replacements regardless of the concern.
• 11036914Aug 11, 2026Brakes. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
• 11036974Aug 7, 2026Electrical system. This bulletin provides informaiton when the airbag warning lamp is active, event memory "B200000 - Faulty control module, symptom 305".
• 11036972Aug 6, 2026Electrical system. This bulletin provides general information about the current tpp issues for Audi connect.
• 11036926Aug 4, 2026Body and structure. This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
• 11036901Aug 4, 2026Transmission and drivetrain. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
• 11035854Jul 27, 2026Other or unknown. This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
• 11035829Jul 13, 2026Fuel system. This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
• 11035818Jul 10, 2026Body and structure. This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
• 11035810Jul 9, 2026Electrical system. This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
• 11035809Jul 9, 2026Body and structure. This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
• 11035828Jul 2, 2026Fuel system. This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
• 11034669Jun 30, 2026Engine. This bulletin provides information when there DTC P218500 is stored in temerature sender G83.
• 11034659Jun 29, 2026Other or unknown. This bulletin provides a deployment overview for customer service packages MLB and MQB for MIB3/connectivity box/OCU3/LSR.
• 11034657Jun 26, 2026Engine. This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
• 11034652Jun 23, 2026Electrical system. This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
• 11034648Jun 23, 2026Electrical system. This bulletin provides information when the display of the Audi virtual cockpit is distorted due to a broken screen.
• 11034643Jun 23, 2026Electrical system. This bulletin provides information when there are noises from the area around the instrument cluster.
• 11034634Jun 23, 2026Electrical system. This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
• 11034647Jun 22, 2026Electrical system. This bulletin provides information when there are pixel faults on the virtual cockpit.
• 11034728Jun 10, 2026Engine. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
• 11034656Jun 4, 2026Engine. This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.

← All problems reported for the 2021 Audi A4