Cheers Steve, did the electrical checks you suggested and on inspecting that lot we found a break in the the lead to the pump, must have only been connected by two strands

all is now good
@geh458, thank you, they're are many fine people in the AR community. On another site i frequent, we learned a member had died in a accident and we had a whip round to get the car road worthy for his Father.
I doubt you'd get that on forums for a certain German brand, but i'll leave it at that.
Rob