UrS4 expansion tank

kneale at knitknacks.com kneale at knitknacks.com
Wed Jul 22 19:55:53 PDT 2009

Part numbers differ between the AAN car overflow tank and the earlier MC/3B
models in that the AAN has 4A0 prefix and the others have 8A0 and an A
suffix.  The middle numbers are identical.  ETKA says the AAN shares the
same tank with the 4 and 6 cylinder models of 100s.

Original Message:
From: Duncan Thomson duncan at systemcontrols.co.nz
Date: Thu, 23 Jul 2009 11:55:23 +1200
To: quattro at audifans.com
Subject: UrS4 expansion tank

Hi guys,

Sorry for WOB, but tried to upgrade parts catalog to v7 and keep getting
bluescreens on vista.

Just bought an UrS4 Avant, and the expansion tank is cracked. Anybody
know which models / years are compatible, and approx price?

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