My friends is a locksmith, he can't cut a mercedes key because he dosen't have the equiment, but he said he was trained on it, and he has the code books, so if he had the equipment he would be able to cut the keys. call a few locksmiths, ask them if the cut high security keys, tell them you have a mercedes... the tool my friend is missing is called a sidewinder milling machine.

my freind can cut the older mercedes keys. like the one i have for the 300D i own.

hope that helps a little.

Nik