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
| A2723582070813_1 | 2023-08-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This bulletin provides information for when there is an electrical or drive system fault, Battery management 2 (48V battery) with DTC P0AA100. |
|---|---|
| A1523442053278_9 | 2023-08-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when there is an oil leak from the cylinder head. |
| AWA 23-07 | 2023-08-04. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This Document informs dealers on the new Crankcase Breather warranty extension for certain MY 2019 - MY 2023 vehicles. |
| A6923922063398_3 | 2023-07-10. Service bulletin. SEAT BELTS. This bulletin provides information for when the seatbelt is hard to latch in the belt buckle. |
| A6923912056406_4 | 2023-07-10. Service bulletin. AIR BAGS. This bulletin provides information for when the airbag warning light is on and DTC B13BCF2 is stored in the airbag control module. |
| A912309205594513 | 2023-07-10. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin provides information for when the SOS Emergency call function deactivated message appears in the instrument cluster; DTC U153E00 is stored in the telematics module. |
| A4823492061904_5 | 2023-07-10. Service bulletin. STEERING. This bulletin provides information for when the yellow steering malfunction light is on in the cluster and DTC C110DF0 is stored in the active steering module. |
| A4823482068822_2 | 2023-07-10. Service bulletin. STEERING. This bulletin provides information for when the steering lamp is on and DTC C11DF29 is stored. |
| A4823472066318_4 | 2023-07-10. Service bulletin. STEERING. This bulletin provides information for when there is a rear wheel steering malfunction; DTC B200FF0 or C12A329. |
| A4823452065871_3 | 2023-07-10. Service bulletin. STEERING. This bulletin provides information for when there is an active steering malfunction with DTC B200FF0. |
| A912308205607618 | 2023-07-10. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS. Ths bulletin provides information for when no diagnostics communication to the telematics control module; DTC U142100 may be stored. |
| SM 31-2023 | 2023-07-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This special notice is to inform dealers to return the parts listed only order the successor parts going forward. |
| A0123592069351_3 | 2023-07-10. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides information on when the engine crankcase breather has a whistling sound, and DTC P227900 is stored. |
| A9123072064681_3 | 2023-07-10. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information for when wireless charging with the Audi Phone Box does not work. |
| A102326201828810 | 2023-07-10. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on checking for debris when replacing an engine. |
| A4623452070679_1 | 2023-07-10. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK. This bulletin provides information for when one or more DC is stored in the ABS control unit related to the parking switch; DTC C100C07 and/or C100C29. |
| A4823412028220_1 | 2023-07-10. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. This bulletin provides information for instances where the steering wheel leather is damaged. |
| A9023302055188_6 | 2023-07-10. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. This bulletin provides information for when the overhead view cameras are inoperative; DTCs B200FFA, B127C04, C12AE02. |
| A2723572058831_9 | 2023-07-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. This bulletin provides information for when there is a 48V electrical system warning; DTC P0CA700, U046900 is stored in the starter/generator control module/ECM. |
| A9423652061922_3 | 2023-07-10. Service bulletin. EXTERIOR LIGHTING. This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights. |
| A9123052068573_2 | 2023-07-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This bulletin provides information for when the parking aid sensor bracket(s) separate from the rear bumper. |
| A912304205607617 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for when there is no communication to the telematics control module. |
| A5723092063236_4 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This bulletin provides information on the electronic lock (e-lock) and instructions for when the front and/or rear doors cannot be opened, fault messages are in the driver information system such as exit warning, central locking, or child safety lock warnings, and one or more DTC is stored B122D26, B122B13, B14FF29 in the control module for any of the four doors. |
| A5723082027406_5 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This bulletin provides information regarding the Audi advanced key. |
| A4023602058460_5 | 2023-07-10. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for when DTCU112100 is found during PDI. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.