My golf gt tdi wont start ! After changing all the cracked and worn fuel pipes from the fuel filter my car started up 1st time ,keeping up high revs to remove any airlocks . The car just cut out at 20revs and refused to start again, I then opened and looked in the fuel filter and the level had gone right down. so i filled it with more diesel then put the cap and clip back on, i repeated this 4 times filling the filter but the engine will not start. I did notice filter cap had slight play in it. Ive checked all the new fuel pipes and they seem ok. Can any one help please????