RE: again with the 87 5000cs tq brake problems
 

Audisloff,

Might be too late, but have you checked or replaced your hoses? The car IS 18 years old, and the inner liner will rot, crack, and sometimes the liner will rot one way, sometimes the other, ie, the inner liner will collapse across the hose to prevent fluid from returning from the wheel caliper, sometimes it will collapse preventing the pressure from applying the brakes, at all.

My s'in-law had his vehicle in to the garage for inspection, etc, today, and a collapsed inner hose liner was keeping the brake applied at the pass side disk. You could apply the brake, but the pressure stayed in the caliper. Wore that side almost to the rivets, although the driver's side was at 80% or better.

Another thought.

Cheers,

George

RE: again with the 87 5000cs tq brake problems
 

anyone know if he ever fixed this problem, because i have the EXACT same problem with my 86 5000cs tq. i replaced all the rubber lines and most of the hard lines yesterday to eliminate that as a problem. Next thing is the master cylinder. after that, things get expensive. any new ideas?