Someone scrapped up the back corner of my rear apron (1986 420SEL. There is a nasty scrape on it and it appears to be a little loose now where it joins to the body near the rear wheel well.

How does the rear apron attach to the car. I am especially interested in knowing how and where it attached near the rear wheel well. It isn't bad, but the gar is about a 1/4 inch and I am worried it might get looser. Is there anything I can do to get the rear apron snug up where it belongs again?

Thanks in advance.