I have to confess I am a complete wallop.
Went to swap the battery over this morning and the negative terminal just came away in my hand, the problem was simply a loose connection. So thats a good thing really.
Anyway my xtron fault decoder came this morning and gave me a number if fault codes.
I used the torque app that cost something like £2.95. It is supposed to clear the codes aswell but couldn't see how to do it on my mobile. It came with a disc so may have to use a laptop for that function, its a shame it didn't come with written instructions
Anyway its booked in to Jagtech in the morning and they can have a good luck at it including the dodgey fuel gauge a fuel filler.