sorry for the noob question, but where is the ovp relay located?

Thanks,
John

it's in the fuse box. it looks like the attached pic.

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I just replaced mine on my 1985 380 sl and it was up under the dash above the fuse box, on the passenger side. There were 5 or 6 sensors under there. It was the top sensor.

I did mine also, I removed the right side panel where the fuse box is. I also removed the glovebox but dont recall if I had to. It was good that I did anyway, I cleaned up some wiring and found the transmission kickdown switch ready to come out of its socket so I pushed it back in. The glove box is easy. Those little plastic tabs are just pulled out.

where should i pick up this relay if its fried?

Click on the Fastlane link up above, the people that run this website sell parts

how would i go about testing this thing? anybody know where i could get a wiring diagram for this thing too? thanks