BenzWorld Junior Member
Date registered: May 2010
Vehicle: 1985 380SL
Location: Bainbridge Georgia
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Strange Brake Problem 85 380SL
OK...quick seniro: Driving the car last week.went to stop and the pedal went to the floor. A few quick pumps and the brakes held but very little pedal.
Made it home and checked the fluid. The fluid level was correct no more , no less. Check all lines and connections for any sign of a leak or problem.Checked all rubber hoses for any bulging...NOTHING
So i have since replaced both front calipers, rubber hoses,pads,pad sensors, and rotors as well as new front wheel bearings and new master cylinder.
All lines were bled but still cant get more than one inch of pedal before hitting the floor. I have rebled the entire system using a mighty vac pump and also by using the old method of manually pumping the brake with a helper. Still the same...no pedal.
The weird thing is that with the car switched off (not running), I can get a full firm pedal that holds without sinking. But when i start the car, i cannot get a firm pedal at all, and if it does seem to firm up after a few pumps, then it sinks to the floor pretty quick. I have bled the brakes on this car many times and flushed the fluid as well as many other cars and never come across this, has anyone else experienced this? Am i missing something?