Totally forgot about this one. Thanks in this case must go to Mark Murphy. I asked in two dealers about common battery drain problems and was told there are none. Mark spoke to a contact of his in Renault who gave him the real facts. The three common causes of battery drain on this model are, water ingress into the body module behind the left headlamp, the radio and the switch for the release on the sliding centre console. In my case it was the centre console switch. Being intermittent, without the silver bullet from Mr. Murphy it would have been very difficult to find.
I have just left the centre console disconnected in this car, because its my sisters car I can get away with that. I think it’s the switch rather than the solenoid buy will post an update if that changes.