The manufacturer Thule has more detailed information here:
https://www.thule.com/de-at...
The dimensions of the vehicle must be clarified.

I don't think this is possible, as the cover of the Mercedes comes quite far down.
Take a look at https://www.youtube.com/watch
In addition, folding it down that far with the e-bikes mounted is a feat of strength

I bought the rack for my Mercedes Marco Polo. There is a simple modification and then the boot lid can be opened even when there are two bikes on the rack. I would have to look again what I had to adjust but I remember that it was very easy. LG Bruno F.

And where can I see the specific information?