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Service bulletins for the 2021 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.

1150 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A0124232073867_12024-06-25. Service bulletin. ENGINE. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM.
A2024672073032_12024-04-04. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. This bulletin provides information for when the MIL is on, DTC P148D00 and P044200; leak diagnostic pump.
A4024742058489_82024-03-06. Service bulletin. SUSPENSION; ENGINE. This bulletin provides information when there is a squeaking noise from the front of the vehicle while driving.
A1924522065040_42024-03-06. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP; UNKNOWN OR OTHER. This bulletin provides information when the coolant warning light is on or when the coolant pump is replaced due to a coolant leak.
A1924492061918_52024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the low coolant light is illuminated but the coolant level is within specifications.
A1724212059366_82024-03-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information when the oil minimum warning illuminates and the oil level is found to be low with the dipstick tool.
A1324232060876_22024-03-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin provides information for when the MIL is illuminated; DTC P030000 is stored in the ECM, and corrosion marks are on the cylinder walls.
A1923472072473_12024-01-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; UNKNOWN OR OTHER. This bulletin provides information for when the red coolant warning lamp comes on, or if there is a coolant leak at the turbocharger.
A9023572072065_12023-12-06. Service bulletin. ENGINE. This bulletin provides information when there are flickering lines in Audi virtual cockpit.
A1323212071114_22023-12-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the engine oil is too low, engine oil consumption is too high.
A0123922071318_42023-12-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the MIL is on, and a whistling noise is heard with DTC P2ADF00.
A0123872071318_32023-11-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This bulletin provides information for when the MIL is on, there is a whistling noise, leaking air Bank 2 - DTC P2ADF00, Engine Crankcase breather.
A1923432069248_52023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
A1923422069248_42023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
A1923412062951_32023-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin provides information for when the red coolant warning lamp is on and the DTCs P218100, P017B00, P017C00, and/or P017E00 are stored in the ECM.
A1323192071114_12023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. This bulletin provides information for when the engine oil level is too low, and oil consumption is too high.
A0123792069351_42023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the MIL is on, there is a whistling noise, leaking air Bank 2 - DTC P227900, Engine Crankcase breather.
A0123782071318_22023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides information for when the MIL is on, there is a whistling noise, leaking air Bank 2 - DTC P2ADF00, Engine Crankcase breather.
A0023712070568_12023-10-05. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on professional noise analysis with the VAS 611 015 PICO NVH Tool.
A4023672047920_72023-09-01. Service bulletin. ENGINE. This bulletin provides information when there are noises from the front end and dash panel when the vehicle is moving.
A1923402069248_32023-09-01. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the red coolant warning lamp or MIL illuminate with DTC P218100 and/or P1BB400.
A1523452065684_52023-09-01. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information for when the engine is misfiring, and not running smoothly with various DTCs, indicating a possible broken valve spring.
A0123722071318_12023-09-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). This bulletin provides information for when the MIL is on and a whistling noise can be heard, DTC P2ADF00.
AWA 23-072023-08-04. 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.
A0123592069351_32023-07-10. 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.

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