Date registered: Sep 2006
Vehicle: 2004 CLK 240 Coupe
Location: Norfolk. UK
Mentioned: 12 Post(s)
Quoted: 410 Post(s)
Up at the firewall (bulkhead) on the driver's side you will see a splash panel held by 2 plastic fasteners. Turn these 90 deg. and remove the panel.
Underneath you will see:
a) reservoir for the braking fluid
b) engine bay fusebox, under a latched cover.
Inside, it looks a bit of a mess, like this:
note: my car is RHD so the fusebox is on the other side to US model CLKs.