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Service bulletins for the 2020 Audi A8

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.

1291 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
DC_Alternator_42023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Support for Customers Affected by Alternator Back-order
DC_Alternator_32023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Support for Customers Affected by Alternator Back-order
DC_Alternator_62023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Support for Customers Affected by Alternator Back-order
SM 01-20232023-02-07. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A6623952060333_32023-02-07. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; STRUCTURE. This bulletin provides instructions when the black optic exterior trim is discolored.
A1923342069248_12023-02-07. Service bulletin. BACK OVER PREVENTION; EQUIPMENT:ELECTRICAL. This bulletin provides instructions for when the red coolant temperature is displayed in the instrument cluster and the engine fans are running bu the coolant temperature gauge does not display an excessively high temperature, or the MIL may be illuminated with DTCS P218100, P1BB400.
DC_Alternator_22023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Support for Customers Affected by Alternator Back-order
AWA 23-022023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Document informs dealers on the new CV Joint warranty extension for 2018 Q5 & Q7 / 2019 A6, A7, A8, Q5, Q7, Q8, e-tron / 2020 A6, A7, A8, Q5, Q8 vehicles
A4623402069078_12023-02-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for when the zirconium inserts found to be not firmly attached during service work.
DC_RECALLS2023-01-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SAFETY RECALLS, COMPLIANCE RECALLS and STOP SALES
A9722892061976_32022-12-06. Service bulletin. ELECTRICAL SYSTEM:WIRING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains guidance for submitting warranty wiring repairs.
A9122472062466_32022-12-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin describes the ways in which a variety of Audi vehicles connect to Apple Wireless CarPlay, and the methods to troubleshoot connection concerns.
A9122462065728_42022-12-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs.
A9122452068435_12022-12-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI. This bulletin states that due to a software malfunction in Apple iOS Version 16.0.x there are restrictions with bluetooth connection.
A9722882068037_22022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides instructions on how to address DTC U014000, or DTC U110100.
A9122402065728_32022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT. This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs.
A9122382068233_12022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to update the software in order to resolve a variety of MMI malfunctions.
A2022512065287_52022-11-04. Service bulletin. EQUIPMENT:ELECTRICAL. If DTC P044200 or P045600 are present, the GX36 may need to be replaced.
A4622352034143_82022-11-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for opening a TAC ticket for ceramic brake repairs.
A9122312055945122022-10-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains repair instructions for when the warning message "SOS Emergency call function deactivated" is seen in the instrument cluster.
A9122302056076162022-10-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin contains instructions for when there is no diagnostics communication with the ConBox.
A9122332062973_22022-10-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states that an SOS malfunction accompanied by DTCs U142100, U164200, and/or U122C100 my be stored erroneously and the ETCs should be cleared.
A9122292062480_22022-10-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin advises that DTCs B18BEF0 and/or B18BDF0 may arise due to a sensitive diagnostic routine; codes can be cleared and no parts require replacement.
A9122252056076152022-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for when there is no diagnostics communication with the ConBox.
A2422602067937_12022-10-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin offers further guidance regarding diagnosis and system information for vehicles with a 48 V electrical system.

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