I've been trying to run down a short in my electrical system. The left side parking lights don't come on and the position number 4 fuse blows immediately when you turn on the light switch. The problem is that the label under the lid of the fuse box says that the number 4 fuse is for the left side parking lights and nothing else. But trying to trace the wire circuit using the Bentley's shows that the power comes in through the switch from the number 5 fuse.

So, if the Bentley's is wrong how the heck can I figure out where to look for this short circuit? I need to get this fixed to get the car inspected.

BTW this is a '95 525 and I made sure I was using the diagram for my car.