Brake pressure problem '86 5KTQ

[<isham-research.freeserve.co.uk@pop.pol.net.uk>]

> Replaced the bomb (twice!), but the "brake" triangle light still flashes for
> the first two minutes or so after start up, then goes away.  There's plenty
> of Pentosin and brake fluid in the reservoirs.  Plus, the brakes feel
> 'un-assisted' for the first mile or so, then all of the sudden - they will
> work fine (Also, the car will pull slightly to the left upon braking under
> 'non-assist' mode, then when the brakes suddenly return to normal, the car
> straightens out).  Bad master cylinder?

Servo leakdown.  Take the top return hose off the hydraulic fluid
reservoir and drop it into a jar.  Shouldn't get anything more than
the contents of the hose.

--
 Phil Payne
 UK Audi quattro Owners Club
 Phone +44 7785 302803  Fax +44 870 0883933