What is this relay for? It doesnt look factory. Does anybody else with a 300E have this? It is right by the mono valve. It has the blue wires coming off of it.

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Owner added relay...follow the wires from terminals 30/87 and you will know what it activates .

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A Dalton

Ok, I followed the wires and one goes to my ac compressor, the other looks like it goes behind the battery by the Klima. Why is this on my car?

this is the only way i could get a question posted...pardon mr intrusion...i bought a 87 300e ....the fuel relay module is shot...where do i find it?

It is behind the black plastic behind the battery.

Which terminals go where ???

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A Dalton

Ok, one goes to the battery, one is a ground wire, one goes it looks like to the klima and the other goes to the ac compresser.

Again...which terminal #s go where??

The terminals are marked on the relay

They are 30 and 87 for the Load contacts amd 85 and 86 for the activation coil [ trigger circuit]

That will tell me how they are using the relay.

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A Dalton

There are no numbers on the relay.

No schematic on the top/side ?

.....or no ID on the bottom at each terminal ??

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A Dalton

I will have to take it off to look on the bottom. Hold on a second.

Ok, 87 goes to compresser, 85 to klima (I think)

You think ???

Come on, Man..

You have 4 wires ..
A bat feed , a ground, a feed to the comp , and a feed from the Klima.
..and you have 4 terminals ....again, 30,87, [ contacts] and 85/ 86 [ coil]

.match those up for me and I will tell you what they did...

http://radioshack.com/product/index.jsp?productId=3020762

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A Dalton

Im sorry, it is dark and my eyes are not working very well. Can I tell you tomorrow when I have light?

That relay might explain why my compressor keeps shutting down