Brake saga

[Fred Munro]

Sounds like a bad master cylinder, Jim.

Fred Munro
'94 S4  122k km

----- Original Message -----
From: "Jim Haseltine" <Jim at ur-q.freeserve.co.uk>
To: <urq at audifans.com>; "audifans" <quattro at audifans.com>
Sent: Monday, January 22, 2001 6:48 PM
Subject: Brake saga


> Saturday afternoon I reseated the front ABS sensors (did the rear ones
last
> week) and bled the system in an attempt to cure the strange 5mph ABS
failure
> and the disappearing pedal. Didn't test it yesterday because of a snowfall
> (no way was I going to take the car out into those conditions with suspect
> brakes) but I took it out tonight. The ABS switch-off has gone but now the
> pedal drops totally as the car stops. If I let the pedal rise again
there's
> pressure but it will sink to the floor if I really press on it. I figure
> that there's either a leak or the MC is shot - its the only part of the
> system that's original, the front calipers have new seals, the rears, the
> bias valve and the bomb are all new. Disconnected the MC from the servo
but
> no fluid drained out. I'll have to put it on stands again tomorrow and get
> underneath it.
> Its got SS lines which I thinking of junking - with rubber lines I could
> clamp them to pin point the fault - anybody got views on the pro & cons?
>
> Regards,
>
> Jim Haseltine
>
>