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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
Circ 27BQ_REV42024-09-06. Service campaign. UNKNOWN OR OTHER. Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart & owner notification letters to reflect the addition of 2021 model year. Parts and claiming instructions updated.
AVIN4APIN202408052024-09-06. Other. UNKNOWN OR OTHER. Summary of all Audi Vin4Pin topics in June Quatro Ultra vibrations MIB3 - Stuck on loading user information when booting up Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B front windows is noisy and/or binding Front door wind noise
A9424392065982_32024-09-06. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the headlight washer jet does not retract.
A9324042074808_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
A9224402065963_32024-09-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on repairing the corrugated hose for the windshield washer system.
A9124462068573_32024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informationw hen the parking aid sensor bracket(s) separates from the rear bumper.
A9124452059528_122024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is an eCall fault / the eCall LED is red with DTC B200000.
A9124392074855_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the calendar function is not available in MIB3.
A9124372060523_32024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides software update instructions for MIB3.
A9024232055188_112024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the individual overhead view cameras are inoperative, the picture is blurry or fogged up; DTCs B200FFA, B127C04, C12AE02.
A9024222074941_12024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is a Selector Lever warning in the instrument cluster; U040400.
A9024212068380_52024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is an instrumebnt cluster fault, or a black screen when started.
A9024182064983_92024-09-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides informaion when the Audi virtual cockpit displays a colorful line (pixel error).
A4424062074846_12024-09-06. Service bulletin. WHEELS. This bulletin provides information vibrations and rotational steering wheel vibrations.
A4424052074843_12024-09-06. Service bulletin. WHEELS. This bulletin provides information when there is a wheel/tire imbalance.
A3924702059057_112024-09-06. Service bulletin. POWER TRAIN. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
A3724232074733_22024-09-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the event memories P17E600, P0191900, P19CB00 are found in diagnostic address 0081. or P085D00 found in diagnostic address 002.
A3724222074826_12024-09-06. Service bulletin. POWER TRAIN. This bulletin offers information about the basic information needed for technical requests for gaerbox complaints.
A1924652070349_42024-09-06. Service bulletin. POWER TRAIN. This bulletin provides information when there is a loss of coolant from the coolant pump; V6 TFSI.
A0124342074976_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides information when there are functional restrictions or driving behavior due to diesel detected in petrol.
A0124322074841_12024-09-06. Service bulletin. POWER TRAIN. This bulleti provides information when tehre is a drive system fault; DTCs P060600, P060C00, PA0F00.
A0024902074853_12024-09-06. Service bulletin. FUEL/PROPULSION SYSTEM. This bulletin provides service information ror when the fuel tank cannot be fully filled.
Dealer 27BQ_REV42024-09-06. Service campaign. UNKNOWN OR OTHER. Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart & owner notification letters to reflect the addition of 2021 model year. Parts and claiming instructions updated.
Circ 27BQ_REV42024-09-06. Service campaign. UNKNOWN OR OTHER. Under this service action, Audi dealers will replace the starter-alternator in affected vehicles at no cost to owners. A defective starter-alternator may inhibit start/stop functionality which could increase CO2 and other emissions while the vehicle is stopped. Emissions still remain within certification standards. Updated affected vehicle chart & owner notification letters to reflect the addition of 2021 model year. Parts and claiming instructions updated.
AVIN4APIN202408052024-09-06. Other. UNKNOWN OR OTHER. Summary of all Audi Vin4Pin topics in June Quatro Ultra vibrations MIB3 - Stuck on loading user information when booting up Airbag light on, DTCs B101704, B103604 Q5 Airbag light Roof panel buttons inop Airbag light B12251B front windows is noisy and/or binding Front door wind noise

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