I had to smile, I didn't know how to remove the centre panel until last weekend when I replaced my mirror switch, if I'd seen that example clip I'd have known exactly what to do without worrying I'd break something.
I'm looking for Mercedes WIS (their technical information system) but can't see it available anywhere in the UK other than 'copies' costing £100+. I guess MB need to retain technical knowledge as tightly as they can in order that we'll all go to them for anything more than having small stones removed from the treads of our tyres.
Sad thing is I think they would do better business if they opened up EPC and WIS to the private individual, as they'd sell more parts and older cars to people looking to go down the owner-maintainer route.
Ian.