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Service bulletin 9801

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id603131
Published by NHTSA1999-02-03
Manufacturer's number9801
Manufacturer's date1998-10-23
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

TURBOCHARGER, FAILURE DUE TO LACK OF LUBRICATION. *YC

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Turbocharger or supercharger

Vehicles listed
AUDI A41997, 1998

Listing a model year does not mean every vehicle of it is concerned: the document says which.