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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: High-voltage battery are shown. Show all

Bulletins, newest first
A2724692058831132024-04-05. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM); UNKNOWN OR OTHER. This bulletin provides information for when there is a vehicle electrical system warning stored in the ECM, DTC U046900.
A1924552061918_62024-04-04. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT; UNKNOWN OR OTHER. This bulletin provides information when the low coolant light is on but the coolant level is within specifications.

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