Dunno, not tried driving it in the dark yet. Now I've got the lights off the car, I think I can see the problem with the xenons. The adjusters are plastic poles, one attached to a cog, the other to what i guess is the auto-levelling unit (and then a manual adjuster at the back of that). It looks like the ball-shaped ends of the adjusting poles have popped out of their housings. I think if I can pop them back in again i might be able to fix them. Spent an hour on trying now though and I've got one back in, but the other is proving trickier.