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Service bulletin 190501

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 id10012765
Published by NHTSA2005-03-15
Manufacturer's number190501
Manufacturer's date2005-02-02
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

AFTER-RUN COOLANT PUMP, ACTIVATING (IB). TO INCLUDE 2005 S4 SEDAN, AVANT. *TT

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, Cooling system

Vehicles listed
AUDI S42004

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

Other bulletins for the same vehicles and component
Edition922023-02-06. Service bulletin. Idenifying and mixing factory fill engine coolants
05012006-03-15. Service bulletin. AFTER-RUN COOLANT PUMP -V51- MAY NOT OPERATE WHEN THE IGNITION IS SHUT OFF AND THE COOLANT TEMPERATURE IS ABOVE 112 DEGREES C. *TT