Cheers folks,
If it is an intelligent alternator then why has the battery gone flat ?
Is 12.30 volts enough then as I remember now that when I first viewed the car it would not start initially and the guy said that he had left the interior light on but not so sure now.
The guy did think it might be a bad earth and it got better when I turned the lights on so he said it might be earthing via the lights but then he tested it and said it was the alternator.