[urq] Red or Green?

Bill Bennett ur.quattro at verizon.net
Sat Jul 2 00:19:18 EDT 2005

 Play it safe, keep the warranty and run green, and really play it safe, 
replace both filters in the reservoir, the one that looks like pressed wood 
can break up and really muck (PC for seriously FUCKED UP) up things,(saw a 
URQ with the left floor filled with hydraulic oil from a leaking steering 
rack pinion seal caused by a failed filter) buy the filters for a BuMmerW 
part #  32411128919, buy the paper one too, application, '83 733i, cheaper 
to buy them from BuMmerW just be sure to replace 443-422-285A, that is the 
one thats falls apart and dumps particles and makes seals leak.
Regards, Bill
----- Original Message ----- 
From: "spot.ontheroad" <spot.ontheroad at virgin.net>
To: <urq at audifans.com>
Sent: Thursday, June 30, 2005 11:45 PM
Subject: [urq] Red or Green?

No it's not a political debate, it's the question of what kind of fluid 
should be used in the power steering/brake assist system on a 1987 WR 

Here's the picture: 1987 WR quattro, with worn out rack. PO ran it on Red 
ATF. I followed suit and ran it with Red ATF (Dexron 111). A friend very 
kindly donated a temporary rack that enabled me to get the original 
reconditioned. The newly reconditioned rack is recieved back with a label 
attached to it stating that the warranty will be invalidated if anything 
other than Mineral based Green VAG G002000 spec fluid is used.
I ask Audi about this. They confirm that Green is correct and only green 
should be used but are unable to advise whether Green can be mixed with the 
residue of the red. I contact the manufacturer of the Green stuff who say it 
IS OK to mix Green with the remains of the red but suggest flushing with 
green first. OK so I am all set to refill with Green when I read the (I 
acknowledge these are now v.old) Audi IST documents which state (page 44) 
that "the hydraulic assist system is operated with ATF Hydraulic oil". Now I 
don't know what to re-fill it with. I don't know who to believe. I have read 
on-line that Red ATF is three times more viscous than the Green and has a 
detrimental effect on the life of seals etc. Puts undue strain in them and 
will lead to leaks. (I certainly had a leaky rack)
Can anyone point me in the direction of something definitive on the subject 
that states:
a)whether the Green Mineral Based oil can be used to replace the Red ATF 
without having to replace any seals or other components
b) which oil is correct for the car ( it has the original tall metal 
reservoir if that helps any)
c)what the effects of running the Red instead of the Green are?
As usual, any help on this will be gratefully received. I am anxious to get 
it al back together ASAP as it is my daily driver and using my old 1963 
Daimler to get around is gradually forcing up the world Oil price with it's 
heavy consumption.

Many thanks


'87 WR

incidentally, I can confirm that the only difference between the rack of a 
coupe quattro and a ur-q is the pipework attached to it - and the part 
number of course. They ARE interchangeable.BTDT
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