# 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 bulletins from NHTSA, as of 2026-10-19. - [TSB\_2083409\_1](/bulletins/11038130.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER. This bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded. - [TSB\_2083393\_1](/bulletins/11038129.md), 2026-10-05, Service bulletin: ENGINE. This bulletin provides information when the starter/generator drive belt is noisy or came off. - [TSB\_2083385\_1](/bulletins/11038127.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there is a warning message in the instrument cluster about external sound. - [TSB\_2081030\_4](/bulletins/11038090.md), 2026-10-05, Service bulletin: ENGINE. This bulletin provides information when there is an abnormal knocking noise from the engine compartment; V6 3.0L TFSI. - [TSB\_2079747\_3](/bulletins/11038066.md), 2026-10-05, Service bulletin: STRUCTURE:BODY. This bulletin provides information regarding various complaints about front or rear door locks. - [TSB\_2079214\_4](/bulletins/11038061.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information regarding fault finding and repair information for electric tailgate. - [TSB\_2078648\_4](/bulletins/11038056.md), 2026-10-05, Service bulletin: STRUCTURE:BODY. This bulletin provides information about billing for a broken sunroof glass panel. - [TSB\_2076396\_3](/bulletins/11038046.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information regarding driver assist systems; Audi adaptive light, Audi pre sense system fault, adaptive cruise assist inop \(DTC C12D5FA\). - [TSB\_2074846\_5](/bulletins/11038042.md), 2026-10-05, Service bulletin: STEERING. This bulletin provides information about vibrations and rotational steering vibrations. - [TSB\_2074059\_4](/bulletins/11038040.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides general information about SOS Emergency Assist. - [TSB\_2073860\_2](/bulletins/11038039.md), 2026-10-05, Service bulletin: STRUCTURE:BODY. This bulletin provides information when there are stails/marks on the sill panel trim. - [TSB\_2068999\_5](/bulletins/11038033.md), 2026-10-05, Service bulletin: STRUCTURE:BODY. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases. - [TSB\_2068573\_6](/bulletins/11038032.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message. - [TSB\_2065871\_4](/bulletins/11038031.md), 2026-10-05, Service bulletin: STEERING. This bulletin provides informaiton when DTC B200FF0 is stored. - [TSB\_2063336\_5](/bulletins/11038030.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change assist are inoperable. - [TSB\_2058077\_11](/bulletins/11038029.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake engagement. - [TSB\_2054202\_8](/bulletins/11038028.md), 2026-10-05, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides information when there is an Audi adaptive light system malfunction; DTC C12B3FA is stored in the control module for driver assistance systems. - [TSB\_2052680\_2](/bulletins/11038027.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER. This bulletin provides information for reporting safety related information to the manufacturer. - [TSB\_2051095\_12](/bulletins/11038026.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER. This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones. - [TSB\_2030471\_9](/bulletins/11038025.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER. This bulletin provides information when the license plate mounting bracket threded inserts are stripped. - [TSB\_2020552\_15](/bulletins/11038024.md), 2026-10-05, Service bulletin: VISIBILITY/WIPER. This bulletin provides service information regarding exterior glass cleaning. - [TSB\_2082976\_2](/bulletins/11036973.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides general information about the current tpp issues for Audi connect. - [TSB\_2082976\_1](/bulletins/11036972.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. This bulletin provides general information about the current tpp issues for Audi connect. - [TSB\_2081030\_3](/bulletins/11036938.md), 2026-09-04, Service bulletin: ENGINE. This bulletin provides information when there is an abnormal engine knocking noise from the engine compartment; V6 3.0L TFSI. - [TSB\_2079732\_2](/bulletins/11036934.md), 2026-09-04, Service bulletin: UNKNOWN OR OTHER. This bulletin provides information when there is a paint issue on alloy wheels. 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