Started to get a spongy brake pedal a few weeks ago when the red brake light came on in the dash. Just thought when depressed emer brake switch stuck. After a few weeks the light went out. While it was on if I hit a bump it would go our briefly but come back on. Now if i pump pedal it gets harder and the brake light comes back on. Any idea of what the problem is. The car will stop but the pedal is abount 3 inches from floor. When pump pedal it stops better.

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Moohampshire
1988 300E 124K
1994 Volvo 850 Turbo 115K Killed by a Cement Truck
1992 300 CE 95 K
1986 300 SL Euro 96K