zx10 r rx8 man

im new on her im from sunderland uk........ ive just got a rx8 231 ps and im keep getting the warning light for the auto headlight leveling sensor coming on all the time, contacted mazda and they wouldnt give me a idea how much it would be to replace them they only said to do diagnostics it would be £95 and if i get the work done by them they would knock the £95 of the price to reair, has any of the rx8 owners on here had the same problem if so could you give me any good advice on what to do and prices to get it sorted......... thanks