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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
A9023322059335_42023-08-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information for when there is noise from the area around the instrument cluster.
A8723452041717_92023-08-04. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This bulletin provides information on the GFF test plan required when replacing the A/C compressor.
A9023312058077_72023-08-04. Service bulletin. SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This bulletin provides information for when an unexpected Audi presense front intervention such as a front end warning, a warning jolt, partial braking, or emergency braking occurs and a warning appears in the instrument cluster and audibly.
A6923942056421_72023-08-04. Service bulletin. SEAT BELTS. This bulletin provides information for when the seat belt or presense warning appears sporadically while driving.
A6423922020552_12023-08-04. Service bulletin. VISIBILITY. This bulletin provides information for when exterior glass cleaning is needed.
A4423012062246_22023-08-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. This bulletin provides information for when the tire pressure and temperature are not available in the instrument cluster.
A6923932063737_32023-07-10. Service bulletin. STRUCTURE. This bulletin provides information for when noises are heard from the center console.
A6923922063398_32023-07-10. Service bulletin. SEAT BELTS. This bulletin provides information for when the seatbelt is hard to latch in the belt buckle.
A6923912056406_42023-07-10. Service bulletin. AIR BAGS. This bulletin provides information for when the airbag warning light is on and DTC B13BCF2 is stored in the airbag control module.
A4823492061904_52023-07-10. Service bulletin. STEERING. This bulletin provides information for when the yellow steering malfunction light is on in the cluster and DTC C110DF0 is stored in the active steering module.
A4823472066318_42023-07-10. Service bulletin. STEERING. This bulletin provides information for when there is a rear wheel steering malfunction; DTC B200FF0 or C12A329.
A4823452065871_32023-07-10. Service bulletin. STEERING. This bulletin provides information for when there is an active steering malfunction with DTC B200FF0.
A4423002065474_42023-07-10. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides information for when there is a TPMS message in the instrument cluster, or the TPMS light is on, and DTC U012700 is stored in the data bus control module.
A9123072064681_32023-07-10. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information for when wireless charging with the Audi Phone Box does not work.
A1023262018288102023-07-10. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on checking for debris when replacing an engine.
A4623452070679_12023-07-10. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29.
A4823412028220_12023-07-10. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. This bulletin provides information for instances where the steering wheel leather is damaged.
A9023302055188_62023-07-10. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. This bulletin provides information for when the overhead view cameras are inoperative; DTCs B200FFA, B127C04, C12AE02.
A2723572058831_92023-07-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. This bulletin provides information for when there is a 48V electrical system warning; DTC P0CA700, U046900 is stored in the starter/generator control module/ECM.
A9723962070488_12023-07-10. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. This bulletin provides repair information for when the rear parking aid, lane change assist, or rear lid power does not work due to chafing on the wiring harness.
A9423652061922_32023-07-10. Service bulletin. EXTERIOR LIGHTING. This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights.
A9123982069112_32023-07-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin provides a software update for instances where saved addresses (including the home address), favorites, last destinations, and/or icon and shortcut order are lost sporadically, the MMI screen turns blue, or becomes stuck on the welcome screen.
A9123052068573_22023-07-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This bulletin provides information for when the parking aid sensor bracket(s) separate from the rear bumper.
A9123022061257_32023-07-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin provides information for when the message "Audi connect installation: error during installation" is shown in the drop down menu of the MMI.
A9023292069244_22023-07-10. Service bulletin. ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; LANE DEPARTURE: SENSING SYSTEM: CAMERA. This bulletin provides information for when the intersection assist arrows flicker for a short period after the vehicle has started, or various other driver assist warnings; DTCs C12D5FA, B200FF9, and/or B107A16 may be stored.

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