Re: ATF in a hydraulic oil car. BTDT?

["Fred Munro" <munrof@isys.ca>]

Hi Phil;

    Leaking piston caps are fairly common on the hydraulic pumps. It's an
easy fix (OK, the concept is simple) to replace the o-rings. I don't know
which seals fail from ATF contamination and hope I never find out :o)

Fred Munro
'91 200q  278k km

----- Original Message -----
From: Phil Payne <quk@isham-research.demon.co.uk>
To: <quattro@audifans.com>
Sent: Monday, August 09, 1999 12:00 PM
Subject: ATF in a hydraulic oil car. BTDT?


> I know putting ATF in a hydraulic oil car "rots the seals".  But which
> seals exactly, and how do the problems manifest themselves?
>
> I had a car in on Saturday with miscellaneous brake problems.  A
> left/right dive seems to have been fixed with a good bleed, but there's
> something very odd about the hydraulic assist.  The pump is the later
> square item fitted to the 20V Coupe and the MB, and it's leaking from
> the forward (high pressure end) piston caps.  Is this where they leak,
> or am I looking at a bad rebuild?  The car has only 85,000 on it - 1988.
>
> --
>  Phil Payne
>  UK Audi quattro Owners Club
>  Phone: 0385 302803   Fax: 0870 0883933
>