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Service bulletins for the 2020 Audi S8

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.

1010 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
A9420302055123_32021-01-08. Service bulletin. EXTERIOR LIGHTING; VISIBILITY; EQUIPMENT. This bulletin contains repair instructions for a warning message regarding the rear lighting. There are several possible DTCs that could be stored.
A3920382060169_22021-01-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for when DTC U101300 is logged with sports differential warning lamps or messages.
A4020222058421_32021-01-08. Service bulletin. STEERING; SUSPENSION. This bulletin contains repair instructions for when there is squeaking and creaking when steering or during suspension movement.
SM C-20202021-01-08. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part numbers listed (State of California only).
A0020362002047_12020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL. This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly.
A9120392061490_12020-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. This bulletin covers Audi connect: oil level in the myAudi app is implausible
A9120292056076102020-12-04. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains instructions for when there is no diagnostics communication with the ConBox.
A9120302061295_12020-12-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin explains how USB damage can occur.
A9120242026611_72020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a guide for troubleshooting HD radio issues.
A4820912053869_42020-11-05. Service bulletin. STEERING:STEERING WHEEL /HANDLE BAR:HAND HEATER/COOLER. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
A8720092060985_12020-11-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin contains a software update for when the rear HVAC control's off button does not respond.
A9120222055945_52020-11-05. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when the warning message 'SOS Emergency call function deactivated' is seen in the instrument cluster.
A6620672060333_22020-11-05. Service bulletin. EQUIPMENT; STRUCTURE:BODY. This bulletin contains instructions for when the black optic trim is discolored.
A4020162061003_22020-11-05. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC); EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. This bulletin contains instructions for dealing with DTC B200000.
A1320092060876_12020-11-05. Service bulletin. ENGINE; EQUIPMENT. This bulletin states to continue diagnosis when there are corrosion marks with DTC P030000.
A9120172055188_32020-11-05. Service bulletin. ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; EQUIPMENT. This bulletin contains repair instructions for when one of the following DTCs is logged B127C04, B127D04, B127E04, B127F04, and B200FFA with a fogged overhead camera.
A9020752060332_22020-11-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions for creating a PSS record when DTC C12D5FA is stored and the driver assist systems are inoperable and a warning message is displayed.
A9020732059891_32020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin directs you to read the SSP and not perform any repairs for the concern.
A4020152061003_12020-11-05. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL (ESC). This bulletin contains instructions for dealing with DTC B200000.
A1720112060750_12020-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This bulletin contains instructions for using the UV additive to find engine oil leaks.
A1520352053278_42020-11-05. Service bulletin. ENGINE; STRUCTURE:BODY. 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.
A0020422045316_52020-11-05. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE. This bulletin contains information for diagnosing the Start/Stop system.
21AUTIRECHAINS2020-10-06. Service bulletin. TIRES; EQUIPMENT; WHEELS. Added new graphic to reflect where to find MY 21 information
A9120142060675_12020-10-06. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS; EQUIPMENT:ELECTRICAL. This bulletin contains instructions for addressing the issue when the parking assist will intermittently alert the customer to an obstruction and the sensors look 'pushed in'.
A9120112037809_72020-10-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This informational bulletin contains instructions about updating the navigation map.

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