I just did mine, two screws on either side of the light, two more under rubber covers on the bottom, two more facing you. There were two bumpers that i took out just for safetys sake.It drove me crazy not to be able to take the two next to the light, got a mirror, MB never put them back.
It does take a good tug, I dont know why but there are four ridges, the door comes with it, unplug the light once you have it partially out. The filters are side by side, take one out slide the other over. The Bosch box had the instructions