The self levelling light is not lit and the lights move up and down when started so assumed the headlamps need manual adjustment for the correct height as there are quite a few posts on the US forums about this...
Dealer is telling me that there is a sensor on the back axle which has failed luckily still covered under warranty. Quite surprised really as I've only covered 18,000 miles. So... first component failure to date
Cheers
Paul