Just turned 10 k miles, brake pads are good. As it`s a warning light showing I hope it shows a fault code when I get it back to the dealer. Thanks for replys I will let you know the outcome. Cheers Ian.
Was at dealers to-day re. fault, it appears it was caused by a bad fuse which is related to brake lights. Fuse was replaced and ESP is back to normal. Sorry I can`t be more specific but that`s all the info. I could get. The modern auto electronics are way out of my understanding.