Mystery Fuse #1 Blown solved.
 

Well now I know why my #1 fuse kept on blowing.

1. There was a trunk leak that filled the driver side of the trunk under the antenna.

2. There is a thick wiring harness that teminates in a female 20? pin serial connector with a red cap on it that was sitting in the water. The connector melted a 1/4 inch hole in that red cap.

I pulled back the sheathing at the connector to find a few wires that had melted and that is the cause of my short.

My question now is: What is this connector for and how do I replace it?

Help would be appreciated.

1992 300E

Best regards, Tib

Mystery solved
 

That harness is for the stock CD changer. I don't need it. So, I peeled back the sheath far enough to clip the burnt wires, wrapped it up and placed it high enough to never be exposed to any moisture.

Case closed. :cool:

Case closed? What about the leak?

Sixto
95 S420
87 300SDL

Leak fixed.
 

On the upper driver side of the trunk opening there is a fastener (allen?) that attaches the plastic trunk facia to the body. Water ran in through the hole. I plugged it until I can find the correct bolt.