5000 brake problem

[Ti Kan]

david rice writes:
> My 1988 5000 cs quattro has a strange intermittent brake problem that my local
> Audi specialists can't figure out.  A couple times a month, after driving for
> at least 20 minutes, one of the brakes starts going on by itself.  The brake
> pedal loses pressure at the top of the push, but then becomes rock hard.  As
> it gets worse, the car essentially starts to shudder as one of the brakes is
> sticking.  I've turned off the anti-lock brakes, but to no avail.  Sometimes,
> I can drive 5 hours with no problems.  But when it starts happening, I become
> stranded.  The guys at 2Bennett in Davis,CA aren't really sure what the
> problem is.  The bomb was just replaced.  Any suggestions.

Brake master cylinder problem?

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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