If so, what years?
Thanks!

Yes, but you'll have to move the battery. Not worth it.

No provision for a multi position power seat in the CLK63 BS.
You'd have to install switches and wiring.

Thanks. I'm just interested in a seat that I can install some car seats on (so it doesn't have to move).

Will any w209 coupe rear seats fit (or is there anything unique to the 2008)?

Thanks!

Yes any coupe not cabrio rear seats should work as long as the battery is not there. It is always a gamble when you're retrofitting like that but usually it works out because manufacturers curb some cost by keeping multiple parts the same across the platform.

I have a set of clk bs for sale if you are interested.

Sorry...I thought you were talking about front seats...have sent you a pm