There's 7 which 1 is it?

[randyr]

I have a 73 450SL and I am trying to locate the fuel pump relay switch. I have found the switches at the passenger side. My problem is, which one is the fuel relay, and is it a 5 or 6 prong switch?

[rowdie]

Upper left and they are all the same there.

[randyr]

Thank you, I've been told that it's a six prong and five prong along with it is too old and they can't possibly look it up. This is all the auto parts dealers in my area including the Mercedes Benz Dealer.

[nobby]

Originally Posted by randyr

Thank you, I've been told that it's a six prong and five prong along with it is too old and they can't possibly look it up. This is all the auto parts dealers in my area including the Mercedes Benz Dealer.

As soon as you said ...."It's a 1973....." I bet their eyes glazed over.


In 1981 my friend had a 1963 Morris Oxford. He blew the head gasket.... probably hitting the top speed of 60mph. But I digress.
We went to an auto parts / engine rebuilder store near us and asked for a replacement.


The guy laughed and asked "Have you tried a museum?"

My friend was crestfallen.

[rowdie]

Part number is 001 542 02 19. It is a 5 pin on the '73.

[randyr]

Thank you.