Hi guys. I own a C Class W203. I bought it brand new and love it. I have been driving it for many years without any problems apart from normal maintenance. I had minor accident recently. The front right side fog lamp was dislodged and I decided to repair it my self. When I removed the fender arch cove a chunky plastic part fell out of it. (please see picture) I can not figure out what it is and where it is supposed to go back. Can someone please help? Cheers