2.5 diesel keeps cutting out
 

As topic really, Iv change the feul filter glow plugs, new battery.
Just randomly cuts out, then you have to stop to restart.
Then also if you can hear the feul pump going the staer disengages every 2-3 secs. If you cant hear the feul pump going, The starter will keep turning the car over but it wont start! If you bump start it when the feul pump is going(humming) It will start. Tehn it will randonly cut out and you ve got the same problem over and over again, Fine if your on a hill, you can bump start it. Lots of other people have had this problem (I googled it)
Many have been on a dyonostic machine and they still cant find the fault.
Any 1 have any ida's what it could be? I live in the UK so a chrysler garages are few and far between. Im at my witts end with it.
Many thanks Matt.

Apologises for my spelling mistakes :S