So I changed all rotors and pads and also replaced the two rear calipers, followed by bleeding the system. But when testing the brakes, the pedal had become spongy.
When engine is off, it firms up after stepping repeatedly a few times. However, once the engine is on, the pedal is spongy and travels a lot.
The brakes do work and the handbrake also works on both rears.
When bleeding, I tightened the bleeder screw when the fluid was completely free of air. After the screw had been tightened the person stepping on the brake released the pedal - although not slowly - is this an issue?
Did I really break the Master Cylinder? I will try re-bleeding, but I am concerned that the MC crapped on me. Would the MC break if I turned on the engine when the MC was very low on fluid (as it had leaked from a broken caliper?
Help is much appreciated.