The diagrams are normally on the inside of the fuse box covers, there are 3 in the 208 CLK.
One in the engine bay, drivers side by the firewall.
One drivers side of the dashboard, pull the panel off with the door open.
One in the boot, to the top right of the spare wheel.[Hi thanks i have found them, do they have a name or mymber like say F1 & F2, or something else?]