Hi All,
First, thanks to all the users here. I have learned so much. So, since i'm getting old I really wanted to upgrade my headlight bulbs to HID. I have a 2013 C300 (facelift) model. I purchased morimoto H7 kit based on all the great writeups. everything went smoothly until i tried to install the bulbs. They were too long! I think i must be missing a step, but the bulbs hit the little bulb cover inside the headlamp, see pic of what I'm talking about. Did i do something wrong, am i supposed to remove this thing???? Please help! Thanks.

-Gitesh