ang gimitti

Due to air compressor malfunction, I have changed fuse and relay for it. It worked for a few hours then went bad. Fuse burnt within 3 minutes (engine bay 108th 40amo maxi) and suspected to have a shortage on the wire.
I shouldn't do this, but I wrapped the wire around the fuse and connected it for a short time. It worked then. Since this thing is messing around with me for several days, can I get a wiring diagram and advice?
I am rooky on MB car so... Please let me know any advice or information about it.
Thanks guys.

SKGL450

Hi
I know from the previous discussions that fuse block itself can go bad an couse a lot of problems as well.This may help
Sasa