Need some expert advice:-
1986 420SEL, brake pedal suddenly went "soft" and almost full travel. Tried to bleed and flush system. Got very little fluid from either wheel, then pedal went to floor and have not been able to get it back since.
Changed MC, properly bled, installed and nothing changed.
No fluid loss evident at any wheel or component. Booster seems to be working when I turn engine on.
Again, Pedal goes to floor, yet no fluid loss . I am at a loss on this one.