How to replace the fuse box?

1985 MERCEDES BENZ 380SL

150,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC

CHARLESTUCK

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There are fuse slots that have no current. I disconnected the battery and cleaned each terminal thoroughly. Only a couple of them have current now, so I have ordered a replacement fuse box. I need to be able to swap wires from the old fuse box to the replacement. Thanks.

Jul 20, 2022 at 7:36 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

STRAILER

AUTOMOTIVE REPAIR CONTRIBUTOR
54,178 POSTS

It might be the ignition switch that is causing the issue, I would check the power outputs at the switch. Here is a guide to help you with the power distribution wiring diagrams that feed the fuse panel and I found some fuse panel diagrams to help understand what you are doing:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Please let us know what happens.

Images (Click to enlarge)

Jul 21, 2022 at 1:17 PM