Thanks for that link but I don't know if those will fit for sure.

Right now, I ordered some from the site I'll list below from a tip that a fellow member had mentioned should work when I did a search but when those came in the mail they looked the same just that they were too small in size and color is nylon gray instead of white. This is what I ordered which was the WRONG clips:

Mercedes-Benz Door Panel Retaining Clips

I also went to the local Mercedes Benz Dealership with the actual clip I took a picture of and they matched it up with some green nylon plastic ones that look the same, they said they should be the right fit BUT the end pieces where it "hooks" into place with the actual trim piece is just not large enough in diameter to make it fit....

So I'm back to square one. at this point, I'm done guessing which may be the right clip so I wanted to know if anyone here knows eactly what the part number is or where to get the correct fitting one. I'm sure someone knows or at least some kind of solution...