Vauhall Combi 1.7tdi

Sami2016

Hi there, my combi van has a starting problem i was driving for a hour and then it stalled at traffic lights, started again drove to a freinds 1miles away then died as i pulled into his drive, i started it again, it started so i pop'd the bonnet and the engine die about a min later, then would not start, checked fuel pump it wassnt pumping fuel, i tryed easy start it started using the easy start but died straight away. i left the van for 30-40 mins went back and it started drove home and now wondering what it could be any ideas ?? i dont want this happing again in middle of nowere.

Thanks in advance