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
| A9122892037809_9 | 2022-04-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This informational bulletin contains instructions about updating the navigation map. |
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| A9022532066620_1 | 2022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin advises that the message "CNG inspection" or "CNG mode active" with no relevant DTCs is currently being investigated. Techs should create a PSS record when this concern is reported by a customer. |
| A4422912065474_2 | 2022-04-05. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. This bulletin contains repair instructions regarding a tire pressure monitoring system (TPMS) warning light with DTC U012700. |
| A4222482038689_6 | 2022-04-05. Service bulletin. SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps. |
| A402234201819410 | 2022-04-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers. |
| A3422542060242_2 | 2022-04-05. Service bulletin. POWER TRAIN. This bulletin contains instructions for when DTC P071800 and P081100 are stored with various transmission issues. |
| SM 19-2022 | 2022-04-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward. |
| A4822232053869_5 | 2022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800. |
| A9122872066315_1 | 2022-04-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin describes a condition in which the USB ports may become damaged during use, and the procedure to repair. |
| A9122822064818_2 | 2022-04-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains repair instructions for when it is not possible to establish a bluetooth connection with DTC U110300. |
| A4822212066318_1 | 2022-04-05. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; STEERING. This bulletin provides instructions to update software to address a steering malfunction warning in the instrument cluster with DTC B200FF0 or C12A329. |
| A2722412058831_4 | 2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains a software update for DTC P0CA700 or U046900. |
| A1722172060750_3 | 2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
| A1522402065684_1 | 2022-04-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin describes the proper details the steps to identify and directs to repair steps to replace parts in the instance where a broken valve spring has been diagnosed. |
| A9122812066224_1 | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Pending Service Solution provides workaround instructions to clear a software malfunction which may cause the lower MMI display to flicker or become distorted. The bulletin will be updated with more information when a solution is available. |
| A9122802059528_5 | 2022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster. |
| A9022462052299_4 | 2022-03-04. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for proper transport mode deactivation (DTC U142100, DTC P169A00, and U13EB00 ). |
| A4622282051095_5 | 2022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin contains instructions on how to download and use the Audi Frequency App. |
| A9222282065963_1 | 2022-03-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. This bulletin describes various conditions that may have arisen due to a leak in the corrugated windshield washer hose, and the associated repair. |
| A6922832056007_3 | 2022-03-04. Service bulletin. SEAT BELTS. This bulletin contains instructions for when the seat belts twitch several times even when the seat is not occupied. |
| A6922812056406_3 | 2022-03-04. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored. |
| A4822182065871_1 | 2022-03-04. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; STEERING. The steering warning lamp may light up in the instrument cluster with a steering fault due to a software issue. This bulletin describes the steps to perform the update. |
| A4822172065978_1 | 2022-03-04. Service bulletin. STEERING:STEERING WHEEL /HANDLE BAR:HAND HEATER/COOLER. This bulletin explains that the steering wheel may warm up while being held leading to the impression that he steering wheel isn't heating evenly. |
| A4222472065993_1 | 2022-03-04. Service bulletin. SUSPENSION. This bulletin describes a noise that may occuf when the suspension compresses and the associated repair procedure. |
| A462226202258411 | 2022-02-04. Service bulletin. SERVICE BRAKES. This informational bulletin provides diagnostic information for brake conditions. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.