fusilier

<center><img src="http://pictureposter.audiworld.com/38899/a8pipe.jpg"></center><p>
Based on what I could find, the Buna Rubber O-ring that Audi uses is only good for 250F which means that is close to failing and will fail if the car overheats slightly. With the thermostat problems on 4.2s I think this is likely one of the design problems with this part. The plastic also seems to degrade with time..

So I went with two standard 1/16" Viton O rings on each side. The pipe is 6061 Aluminum.
O.D. with the Orings fitted is .775-.78" which means it will fit as per the original plastic pipe.

$25 dollars, shipping included with 4 Viton O-rings.

fusilier

<img src="http://farm4.static.flickr.com/3389/3291144808_57314c38ae.jpg?v=0">

<img src="http://farm4.static.flickr.com/3358/3291144660_d6f4c81421.jpg?v=0">

Some D3s might have had this fail, although it seems much more common on D2s, C5s right now.

Its just a matter of time.

bear1947

Give us payment instructions. Thanks

fusilier

you can either send payment via an Paypal E-check (non credit card) to the above email address (the one in Audiworld).
or mail a check to me.
James Bufkin PE
2309 West 8th Street
Austin Texas 78703
512-236-8070 office
512-914-2659 cell.


Thanks
James