Engine cuts out - no electrics ?

[chrisl]

Finally got my van back from the dealer, it has now started cutting out while driving.
All electrics go dead then power is restored although engine won’t start.after 20 mins  with ignition off it starts.
On dealers advice I took the positive battery terminal off so as to reset the computor, this was ok for a while but it cut out twice last night.
It’s got to go back to them obviously but has anyone got any ideas  ?

[boop]

Usually it's the ground to battery causing this for any car, not just the Berlingo. There are usually two ground wires, check both.