I just took delivery yesterday and noticed it today. My MA said he asked the technician and said that it is just a plastic cover. No need to take it off and no need to worry if it pops off on its own.

Will try to upload a picture when I can get to a desktop...

Anyone seen this before?

 

Here's a pic of what I'm talking about. There's a black plastic cover at the bottom of the arm.

Anyone see this before?

 

I've wondered about that myself but I never nothered to investigate when I had the wheels off. lol

 

Quality_sound: whew! So I'm not the only one then. You still have yours on right?

 

Yessir. On both sides. I really have NO idea what they're for, if anything. I can't even tell if something was supposed to fit up in there for transport or what. It's an oddity that's for sure.

 

Yep, me too--on both rears. Couldn't see anything on the fronts though.

 

These covers are there to protect that suspension component. I have as well on mini JCW and MB S500. Should not fall off unless you hit something.