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Old 07-11-2005, 09:07 AM
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Join Date: Jan 2003
Location: SW VA.
Posts: 9
Brake problem

The brake pedal on my 1989 190e2.6 sometimes goes to the floor. It will pump back up with two or three strokes. And then the brakes feel spongy. This happens only, so far it seems, after driving a few miles. In the morning brakes feel fine. So far !

There doesn't seem to be any fluid loss and so I thought I would replace the master cylinder.

Then I noticed the vacuum booster and wondered if that could be the problem ? Could the check valve on this be bad without fluid loss ?

Also the brake lines run into the ABS unit and I wondered about that. I have no data in my books on how to check the ABS unit.

Any help ?

Last edited by 190ex26; 07-11-2005 at 02:00 PM.
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