FW: A4 Turbo bypass valve designation

["Colin Barfoot" <Colin_Barfoot@msn.com>]

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From: 	Colin Barfoot[FAX:+1 (506) 659-9014]
Sent: 	April 20, 1997 5:49 PM
To: 	QUATTRO@coimbra.ans.net
Subject: 	A4 Turbo bypass valve designation

I am trying to find a Turbo Blowby valve to retrofit to my 86 5000 CD Quattro.
Since there are no Bosch dealers in my area I tried the VW (Audi Service only) 
dealer to check out their price.  They didn't have a fliche for the S4 or S6 
so I had them check the A41.8 T one. The parts fliche showed 2 valves that 
both looked like blowby valves, one connected to the turbo outlet and one 
further downstream at the inlet manifold.  Neither was called a Blow By valve 
or anything like it.
The one downstream which from my understanding would be closer to the retrofit 
description for the 5000 TQ.  The Audi retail price for this part was $53 CDN 
wholesale $35.  Can anyone tell me which valve is the right one?  Also what is 
the second valve for?
TIA
Colin
86 5000CD Quattro awaiting blowby valve install.