Update.
The car hasn't been driven much as we've had a lot on so didn't want to get stranded anywhere.
Out in it tonight and it cut out again, literally 100yds from the first time it done it!
Engine was at temp, it had driven 20 mile round trip and it died as I turned into a road.
Checked dash and all the usual lights were on inc coil light.
Checked fuel pump relay under dash on drivers side, that was ok
Checked lift pump in tank, couldn't hear it as was on a noisy road so I took top off fuel filter housing and fuel came out when ignition turned on.
Did notice the fuel filter had slipped off the top and was in the bottom of the housing and there was little diesel in housing about half way up filter off the bottom?
Turned the key on and off to fill housing and put lid back on, didn't have no gloves to put filter back on lid.
Tried several times cranking engine over but fails to start.
It's rather hot out and don't want to keep turning it over so will wait till it cools down and try again.
So I have eliminated a few things and noticed the same thing again. The filter housing isn't full BUT the pump was working when I checked after cutting out.
Could the pump cut out at some point and engine runs until too low in filter housing the cuts out?
The mrs also noticed today that in 3rd there was a bit of a hesitation when accelerating, not all the time but occasionally .
Anybody care to give a bit of advice on what to check or try now, should I buy a new lift pump in tank in case it has an intermittent fault?