Thanks guys... The drain is intermittent (we haven't seen it) but RAC man says it goes when you remove fuse 7 under bonnet. This is a 60A maxi type which is listed as 'battery main 1'. Interesting what you say about alarm Andy as this customer has been to dealer several times with alarm faults. There is currently no remote keyfob - they have had two break at £100 - so they've simply stopped locking the car to stop the alarm setting itself. It has been fine like this for about 9 months. ....Funny that no-one decided to nick it! I wonder why?