about the screws being m5, mine came off with m8, if yours didnt than its different.
and in regards to the ridge that you shaved off of the light...i didnt find that necessary because the light went right in and it might even give it a more snug fit (not entirely sure about the fit but who knows). Did the cut help fitment for yours?
Was ist die fragen?
Hey Frau Hey!
Geck! Wo ist mein Auto?