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Service bulletins for the 2021 Audi A6 allroad

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.

1070 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
A9023282070020_22023-07-10. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This bulletin provides information for when semi circular marks appear on the edges of the virtual cockpit display.
A5723092063236_42023-07-10. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This bulletin provides information on the electronic lock (e-lock) and instructions for when the front and/or rear doors cannot be opened, fault messages are in the driver information system such as exit warning, central locking, or child safety lock warnings, and one or more DTC is stored B122D26, B122B13, B14FF29 in the control module for any of the four doors.
A5723082027406_52023-07-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This bulletin provides information regarding the Audi advanced key.
A5523762062730_32023-07-10. Service bulletin. STRUCTURE:BODY:TRUNK LID; STRUCTURE. This bulletin provides information for when the luggage compartment lid cannot be closed using the button(s) in the luggage compartment trim.
A5023132061672_42023-07-10. Service bulletin. SERVICE BRAKES. This bulletin provides information for when there are creaking noises heard during braking or steering maneuvers.
A2723562069747_32023-07-10. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides additional diagnostic instructions for when the vehicle does not start due to a drained 12v battery (A).
A6823432056298_62023-06-06. Service bulletin. STRUCTURE:INTERIOR PANELS:DASHBOARD. This bulletin provides instructions to address noises from the dash panel which may be heard while driving on poor roads.
A9223352038151142023-06-06. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER. This bulletin provides instructions for when the washer level warning is on but the reservoir is full.
A9123962066315_22023-06-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to replace the USB interface in instances where it has become damaged or pushed in and is no longer functioning.
A9123952067843_22023-06-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides instructions to disable the configuration wizard.
A7223462069350_12023-06-06. Service bulletin. ELECTRICAL SYSTEM; SEATS. This bulletin provides information for when the starter battery is discharged, and the vehicle cannot be started due to the front adjustment seat switch becoming jammed.
A6823422956298_52023-06-06. Service bulletin. STRUCTURE:INTERIOR PANELS:DASHBOARD. This bulletin contains instructions for dealing with a noise in the dash panel around the MMI display.
A5723062055932_92023-06-06. Service bulletin. PARKING BRAKE; VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. This bulletin provides information for when the central locking/parking brake warning, or alarm sounds, or if there are exterior mirror issues. DTCs B122D29, U122800, and/or B14FF29 may be stored.
A4823402067555_32023-06-06. Service bulletin. STEERING. This bulletin provides and SVM update for when the red steering warning is illuminated in the cluster, and DTC B200049 is stored.
A4323722067531_22023-06-06. Service bulletin. SUSPENSION; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information for when the messages "Air suspension: system fault" or "Shock absorber system/suspension" is shown in the instrument cluster, and one or more of the following DTCs are stored B200FF0, B200FF1, B200FF3, B200FF4, B200FF5.
A0023702021205_72023-06-06. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin provides instructions for ordering replacement Safety Certification labels or VIN plates.
A0023692031473_42023-06-06. Service bulletin. STRUCTURE; EXTERIOR LIGHTING:HEADLIGHTS. This bulletin provides information for when car wash bristles become stuck in the body gap between the headlight and fender.
A3923542048671_62023-06-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged.
A2723552058831_82023-06-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P0CA700 or U046900.
A2023592070211_12023-06-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; FUEL SYSTEM, GASOLINE. This bulletin provides information for when an EPCO warning and a fuel system warning are displayed in the instrument cluster with DTC B10581B.
A1923392070349_12023-06-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin advises that a small amount of coolant loss is normal. Otherwise, clean and visually inspect the coolant system in the presence of a small leak to verify if a repair is needed, and then to repair a component if it is verified to have been leaking actively.
A0023682066297_22023-06-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information to Audi technicians regarding the VIN-4-PIN bonus program.
A9423632061922_22023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides details on how to properly document optical concerns in headlights and taillights for warranty submissions.
A9123942018187132023-06-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference.
A9423642012749162023-06-06. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information for when there is moisture accumulation in the exterior lights.

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