Put my 312 on today bled it out with a pressure bleeder and now there is excess travel in the pedal, if you press them with the engine off it seems to be ok but as soon as you start it up it has excessive travel and slowly starts to creep

Possibly some air left in the system, but other things to consider are:

1: Pedal creep at idle is normal on a diesel. It's called diesel creep, and is caused by unlimited vacuum from the mechanical vacuum pump (part of the tandem pump.) The pedal can creep to within an inch of the floor, and if done too many times, can reverse the seals in the master cylinder.

2: I assume when pressure bleeding, you didn't press the brake pedal to the floor at any time? This can also reverse the master cylinder seals.

3: If you got any air into the ABS unit, it will need to be bled using VCDS to modulate the ABS unit valves.

All seem ok now, re bled them, and bedded the pads in, been for a nice long drive and all is well, cheers for the help moggytech