I've reported this before... I have a haze inside my Xenon headlights (2007 E70 model).. I just had my car repaired and a new headlight was installed. The new one is crystal clear.. and now I have a mismatched headlight set if you look at them both closely.... Has anyone claimed this under warranty.. I actually think it is a defect.. Anyone eles that has a 2007/2008 seen the same kind of thing ? I noticed that the new headlight is a newer model as the manufacturer logo on the headlight lense is much smaller than the original. I'll try and post some pictures shortly .. I did report the haze to the dealer a couple of months back and they said it was "normal' for this to occur... given that Xenons here must have washers and self levellers (as do all X5's) to prevent a build- up of dirt on the cover that could disperse the light, it may in fact be a roadworthines issue as the haze is very noticeable....and it does disperse the light beam...