if your lights are manufactured before 10/02 it is possible to open lenses, if they are made after that bmw used different sealant which is impossible to open. check thread on how to open lights in home page. look on the back of headlight and you will see a small dial imprinted in the plastic. the two numbers in the middle stand for the year and the number on the outside with arrow pointing to it is the month of manufacture. let me know how you go. matt