Changing hydraulic oil?

Bernie Benz b.benz at
Fri Jun 18 11:46:28 EDT 2004


If your rack is leaking, and the leak is one of the high pressure rack rod
seal, the likely leak, the stop leak will not do any good as it is designed
for elastermeric lip seals which thts is not.  Nor will changing the fluid
do any good, IMO.  The two fluids are completely mixable so don't bother
changing until you must do a seal replacement.  BTDT.


> From: PeterBergin at
> Date: Fri, 18 Jun 2004 10:58:41 EDT
> To: 200q20v at
> Subject: Changing hydraulic oil?
> My steering rack leaks a small amount.  So I stopped by the local dealer to
> buy some Pentosin.  Ask for specific oil for my car and was sold the old stuff
> by mistake which I added unknowing.
> So now I have two cans of the correct synthetic Pentosin to change out the
> system.  However after thumbing through my Bentley, I haven't found
> information 
> on how to change out the old Pentosin and how much the system holds.  Also
> bought some hydraulic oil stop leak from Blau. to add to the system.
> Can any one give me so quick advice?
> Pete
> 91 Avant
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