Ok, I bought one today. Their office is located around the corner from me. They are very nice btw.

I plugged it in on the way back, constantly read "communicating"....

I read in the manual how to force it for the different modes, nada.

So I just got off the phone with them and confirmed that the official line is "since this car uses Mercedes engines, it will not work."

If you got one that does work, be thankful.

Now I have to find another one that will fit the same price range and give me the same options.