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.

• 11013741Jan 24, 2025Body and structure. This TSB provides information when there is a rattling noise from inside of the Audi virtual cockpit.
• 11013743Jan 23, 2025Body and structure. This bulletin provides information when the air conditioning cooling output is insufficient; leak on air conditioning system evaporator.
• 11013725Jan 22, 2025Body and structure. This bulletin contains service information about a comfort complaint pertaining to the easy-entry function.
• 11013723Jan 21, 2025Body and structure. This TSB provides information when the exterior rubber trim is spotted.
• 11013731Jan 17, 2025Electrical system. This bulletin provides information when there are no services in the MMI and the SOS LED does not turn green after PDI.
• 11013730Jan 16, 2025Electrical system. This Pending Service Solution (PSS) requests that technicans create a record in the PSS database when the function programmed to the star button on the multi-function steering wheel deletes itself.
• 11013719Jan 15, 2025Suspension. This TSB provides informaiton pertaining to noises from the guide link bush.
• 11013718Jan 15, 2025Suspension. This TSB provides informaiton about locating noises coming from suspension.
• 11013716Jan 14, 2025Suspension. This bulletin is an assessment aid for shock absorber leaks.
• 11013715Jan 13, 2025Electrical system. This TSB provides information in instances when DTC U112300 is stored in one of two control modules.
• 11013711Jan 13, 2025Electrical system. This bulletin provides instructions on reinstalling the Nav Database.
• 11013709Jan 9, 2025Suspension. This bulletin provides information when noises from wheel input shaft/drive shaft are reported.
• 11013699Jan 9, 2025Other or unknown. This bulletin provides information to check in the event that a customer complains about Apple CarPlay/Android Auto.
• 11013697Jan 9, 2025Steering. This bulletin provides information when the steering wheel does not heat up sufficiently.
• 11013694Jan 9, 2025Other or unknown. This bulletin provides information when noises from the front end and dash panel, rolling noises are noted.
• 11013692Jan 9, 2025Other or unknown. This bulletin provides a deployment overview for customer service packages MLB and MQB for MIB3/connectivity box/OCU3/LSR.
• 11012522Dec 19, 2024Electrical system. This bulletin provides informaiton when there is an installation error with Audi connect.
• 11012519Dec 17, 2024Electrical system. This bulletin provides information when Key User pariing is not possible, or the myAudi login cannot be completed in the vehicle.
• 11012514Dec 17, 2024Electrical system. This bulletin provides information when the display of guages is faulty in Audi virtual cockpit.
• 11012503Dec 17, 2024Other or unknown. This bulletin provides information when a GFF test plan required for A/C compressor replacements regardless of concern.
• 11012492Dec 17, 2024Body and structure. This TSB provides information when there is cracked paintwork with corrosion at joint between roof and roof side member.
• 11012474Dec 17, 2024Other or unknown. This TSB provides a deployment overview for customer service packages, MLB, and MQB for MIB3/connectivity box/OCU3/LSR.
• 11012507Dec 16, 2024Electrical system. This bulletin provides informatino when the Audi virtual cockpit remains blank at startup.
• 11012506Dec 16, 2024Electrical system. This bulletin provides information when the Audi virtual cockpit display has semi-circular marks on edges of the display.
• 11012485Dec 13, 2024Transmission and drivetrain. This bulletin provides information when the Gearbox warning is on, DTC P17F900 is stored in the TCM.
• 11012497Dec 12, 2024Body and structure. This bulletin provides informationw hen there are optical defects, scratches, and/or chrome peeling.
• 11012505Dec 10, 2024Electrical system. This TSB provides information when myAudi requires a user to log in again.
• 11012501Dec 10, 2024Electrical system. This bulletin provides information when the control functions in the vehicle are restricted.
• 11012517Dec 9, 2024Electrical system. This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
• 11012504Dec 9, 2024Electrical system. This bulletin provides information when the Audi virtual cockpit displays a colorful line.
• 11012490Dec 6, 2024Wheels. This bulletin provides information regarding wheel alignment.
• 11012483Dec 6, 2024Electrical system. This bulletin provides information in circumstances where there are noises/vibration from front of vehicle in dynamic mode.
• 11012476Dec 5, 2024Engine. This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
• 11012489Dec 4, 2024Suspension. This bulletin provides information when DTCs B200FF0 to B200FF5 stored in the J775 suspension control unit.
• 11012499Dec 2, 2024Body and structure. This bulletin provides information when the front seat makes creaking/squeaking noises.
• 11012488Dec 2, 2024Transmission and drivetrain. This bulettin provides information when droning noises/vibrations in tight corners is reported.
• 11012486Dec 2, 2024Transmission and drivetrain. This TSB provides information when event memory entries cannot be deleted (Mode$0A error) on gearboxes: DL501, DL382/DL382E and DQ500.
• 11011243Nov 27, 2024Engine. This bulletin provides information when there are whistling noises from the turbo charge at 1500 - 2200 rpm and apprximately 70% load.
• 11011285Nov 26, 2024Electrical system. This TSB Provides information when parking assistance provides false warnings.
• 11011274Nov 25, 2024Electrical system. This bulletin provides information when the restricted function icon for Audi Pre sense is displayed after engine starts.
• 11011257Nov 25, 2024Body and structure. This bulletin provides information when creaking noises are heard when body twists during braking or steering maneuvers.
• 11011282Nov 22, 2024Body and structure. This bulletin provides information when speaker rattles, vibrations, or audio interference is noted.
• 11011263Nov 22, 2024Body and structure. This bulletin provides information regarding cleaning exterior glass.
• 11011270Nov 20, 2024Electrical system. This bulletin provides informatoin when Audi pre sense restricted message appears in the instrument cluster, no DTCs.
• 11011256Nov 20, 2024Electrical system. This bulletin provides information when the DTCs B200FF0 to B200FF5 are stored in the J775 suspension control unit.
• 11011240Nov 20, 2024Other or unknown. This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
• 11011305Nov 15, 2024Electrical system. This bulletin provides information when the camera for the Driver Assist Systems is coded incorrectly.
• 11011296Nov 15, 2024Electrical system. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
• 11011276Nov 12, 2024Electrical system. This TSB provides information when DTCs U142100 and U164200 are stored as passive/sporadic in the gateway.
• 11011303Nov 7, 2024Electrical system. This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate.

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