Anyone had any problems with the plastic headlamps discolouring? Mine were pretty bad when I bought the car ('05 350). I used a Meguiars headlamp lens renovation kit which cleaned them up pretty well but now after a few weeks in the sun they're starting to discolour again. Seems to be UV related.........any chance of MB replacing them I wonder?? There does seem to be some kind of manufacturing problem......my 12 year old Peugeot 406 plastic headlamps are perfect!!
