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Service bulletins for the 2021 Audi A6

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.

1342 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
A9121552062266_42022-01-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A9021292065284_12022-01-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains repair instructions for when the Audi virtual cockpit is blank with DTC B200049.
A8721182061277_22022-01-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin contains repair instructions for when the A/C cooling is diminished or the compressor is noisy.
A5721872063236_22022-01-06. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LOCK. This bulletin contains diagnosis information for when the front and/or rear doors cannot be opened and there maybe be various DTCs associated.
A5521652062730_22022-01-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes.
A4821142064018_42022-01-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.
A4421862056386_72022-01-05. Service bulletin. STEERING; SUSPENSION. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked.
A4021302023187_62022-01-05. Service bulletin. STEERING. This information bulletin provides an explanation for squeaking noises heard when the steering wheel is turned or maneuvered.
A3521402064312_22022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This repair bulletin describes the process to address a DTC stored in the transmission control module
A2021392065287_12022-01-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). There is an internal defect in the EVAP leak detection pump causing false leak detection.
A1921262061918_42022-01-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.
A2721402058831_32022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P0CA700 or U046900.
A0021552011732122022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains general instructions for software updates.
A9721822061976_22021-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs.
A9621742063336_22021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LANE DEPARTURE: LANE KEEP: AUTOMATIC STEERING. This bulletin contains a software update that address when intersection assist/ lane assist are inop with DTC C12BFF0.
A9021272064844_12021-12-07. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This bulletin contains repair instructions for when the Audi virtual cockpit does not start-up with no DTCs.
A4421842065160_12021-12-07. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; TIRES:TEMPORARY/EMERGENCY SPARE TIRE. This informational bulletin explains how the temporary/collapsible spare wheel inflates.
A4121002065161_12021-12-07. Service bulletin. SUSPENSION. This bulletin contains instructions regarding part number 4K0 941 285 B.
A9121512058769_52021-12-07. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. This bulletin contains instructions for checking the sensors and resolving DTCs B107BF0 and B10FCF0.
A9121502062115_72021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains instructions for when the nav files are corrupted during an update.
A6921732056421_52021-12-07. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE. This informational bulletin contains instructions on when DTC B101C07 is stored in the airbag control module/ safety computer.
A3921452048671_52021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains instructions for when DTC U030000 appears and “All Wheel Drive Malfunction Message” is displayed in the instrument cluster.
A9021222064983_12021-12-07. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin states to replace the instrument cluster when there is a colorful vertical line (pixel error) in the Audi virtual cockpit.
A6021572054270_82021-12-07. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. This bulletin contains instructions for resolving a rattle noise near the central roof area.
A4821122064018_32021-12-07. Service bulletin. EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:UNIT. This bulletin contains a software update to address a red steering warning light with DTC C10AC07 stored.

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