[benlg81]

Hi All

my folks have replaced the rear clipers and rebulit them on their audi cab m reg.

before the rebuild the old calipers piston came out

so new calipers rebuilt all put back together and on the car they have bled the brakes 4 times now and have all clean fluid coming out.

get to the point where the pedel is nice and hard but when you start the car the pedel pressue drops and the pedel goes to the floor

any ideas i know it will be a stuipid easy answer but we are stuck

Regards

BEn