Does anyone have a wiring diagram of the electrical system or circuit board of a bmw e60 545i ?

 

Do a forum search for service manual. Someone posted a link that may give you the information.

 

What part of the diagram do you need? Any particular module or system?

 

Anything that i can clearly see which fuse is connected to what modules.

 

Unfortunately the wiring diagrams don't start with the fuse panel and show where everything goes. Rather, you look up individual modules or systems and it then shows which fuse that system goes to.

For example: