hi, ive had my abs light on for a while now and eventually got it hooked up to a code scanner, it came up with inlet and outlet valve problems for the front left and right. I was told by a vw mechanic that the problem was in my pump, so ive bought a replacement and fitted it but im unsure wether i have bleeded it correct or not, my pedal was hard when i did it the normal way on all 4 corners and when i took it for a drive its now very spongey when trying to brake and also my abs light is still on. Does anyone know how to properly bleed the system from the pump n throughout and when and how my