I'm afraid it"s a bumper off job,not as bad as it sounds,the way i did it was removed the four big torx on the top,there's a couple of fixings in the wheel arch including a ten millimetre hidden up by the pointy part of the bumper,it should unclip along the wing bumper joint (do it on a warm day to save brittle plastic) and i left a couple of screws in the undertray and allowed the bumper to hinge forward and sit on some old carpet.Three or four bolts and the headlight comes out,sorry if the instructions are a bit vague,i'm more of a visual person than words !
