One thing I should mention is that sometimes after the car has been left alone for a while... the electrics seem to work. Like when the garage came to collect my car, the car locked and unlocked, the wipers came on and the windows went up and down. But then after a minute or so they all stop and then don't work.
Another thing that happens is the radiator fan kicks in after 30 seconds and spins very very fast! it then slows down after a minute or two and then does the same again.