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Service bulletins for the 1991 Audi V8

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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SB-01-15-292015-10-15. Service bulletin. ENGINE. AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. MODEL ALL. ALL YEARS. *PE

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