Got a quick query about the other halves car, basically the brakes don't feel as firm as they should be, there is no lip on the front discs, and the pads are only half worn, the problem been you seem to press the brake pedal down, you get a bite, then the pedal drops again, as though there is air or something in the system, bled the system which does not seem to make any difference to the travel of the pedal, anybody any ideas.