Service bulletins for the 2020 Audi S6
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.
1060 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| A9121772056076_1 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for when there is no diagnostics communication with the ConBox. |
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| A9121762037809_8 | 2021-04-06. Service bulletin. EQUIPMENT. This informational bulletin contains instructions about updating the navigation map. |
| A9021952062601_1 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for ghost DTC U110100. |
| A9021932056015_2 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This bulletin contains instructions for DTC B170AF1 or DTC B200FF3. |
| A3921422051558_6 | 2021-04-06. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when the message "four-wheel drive malfunction" shows up sporadically in the instrument cluster with DTC C05ED00. |
| A1921122061918_2 | 2021-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank. |
| A9121752062386_1 | 2021-03-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin states to reset the MMI system and then create a PSS record if it sporadically is no longer possible to change radio stations. |
| A9121742062388_1 | 2021-03-04. Service bulletin. EQUIPMENT. This bulletin contains instructions for when quick access toolbar resets itself and advises to create a PSS record. |
| A9021912055906_4 | 2021-03-04. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. This bulletin contains PSS instructions for when the Audi Adaptive light, pre sense malfunction, and the Adaptive Cruise Assist does not work. |
| A9021902060332_3 | 2021-03-04. Service bulletin. BACK OVER PREVENTION. This bulletin contains instructions for creating a PSS record when DTC C12D5FA is stored and the driver assist systems aer inoperable and a warning message is displayed. |
| SM 14-2021 | 2021-03-04. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| A4721082055646_2 | 2021-03-04. Service bulletin. SERVICE BRAKES. This bulletin contains repair instructions for when the vehicle sporadically does not start and there is a hard brake pedal concern. |
| A4621252054385_2 | 2021-03-04. Service bulletin. EQUIPMENT; SERVICE BRAKES. This informational contains an explanation for when the customer hears creaking noises when braking at almost standstill (crawling when pulling away or briefly before standstill). |
| SM 15-2021 | 2021-03-04. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part numbers listed (State of California only). |
| A9721782061976_1 | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs. |
| A9421342012749_1 | 2021-03-04. Service bulletin. EXTERIOR LIGHTING. This bulletin contains instructions for addressing condensation in the headlights. |
| A4621222051095_4 | 2021-03-04. Service bulletin. EQUIPMENT. This informational bulletin contains instructions on how to download and use the Audi Frequency App. |
| A1521372053278_6 | 2021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody. |
| A9421332061922_1 | 2021-03-04. Service bulletin. EQUIPMENT. This informational contains instruction on how to document optical concerns for warranty claims. |
| SM 10-2021 | 2021-03-04. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| A462124203418118 | 2021-03-04. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise. |
| A462123202258410 | 2021-03-04. Service bulletin. SERVICE BRAKES. This informational bulletin provides diagnostic information for brake conditions. |
| A4421802056386_4 | 2021-03-04. Service bulletin. STEERING. This bulletin contains instructions for when the vehicle pulls to one side or the steering wheel is crooked. |
| A9021882061489_2 | 2021-03-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin states to create a PSS record if the driver assistance systems are sporadically not working. |
| A6621692030471_6 | 2021-03-04. Service bulletin. EQUIPMENT. This informational bulletin covers the condition of when license plate mounting bracket threaded inserts are stripped. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.