Hi david74mr,

in my 420, I found a card with all fuse information a f t e r I turned the lid of the fuse box completely over. (Just like Mike Tangas says). It was attached to the inside of the lid, but you needed to open it enough to see it.
(My car is in the shop right now so I cannot get to it.)
May be you'll find it there...Or the manual...
Good luck
Reinhard Kreutzer