Fuel Relay Cut Off On A 1985 380sl Diagram

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Discussion Starter · #1 ·

Hello

we have an 83 380sl, we arent getting any power to the fuel pump. We are trying to find the relay but we dont know where it is located? Also we dont know which fuse is for the fuel pump, can anybody help?

the engine does start when fuel is sprayed into the manifold.

isthisdave

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The fuel pump relay is located behind the passenger side kick panel, above the fuse box. Run a search, there are threads with photos of the relay set. There is no fuse for the pump, just a relay.

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Discussion Starter · #3 · (Edited)

i see pictures of used ones on here and they look black and say kickdown on the front, but we see where there are a few relays but none say kickdown on it.

i have searched on here but cant find a pic, can you help me out. am i right to look for one that says kickdown?

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Discussion Starter · #4 ·

forget it we found it, thanks for the help

isthisdave

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On my 1983 380SL the "Electronic Fuel Pump Relay" is located behind the glove compartment box. It's labelled 5500/min8Zyl.12V 898229Kickdown. It has 7 terminals. I removed the glove compartment box for easier access, but one could probably reach up behind the glove compartment area and pull it up and out of the socket. It's the smaller black relay box located to the right of the larger black "Idle Speed Control Unit." I've been searching for it and finally located it in my CD manual and in the car.:)

I found the replacement (7 terminals) on Rockauto.com The one listed is made by Uro. I'm not familiar with Uro. It seems too cheap at $34.79, but it's the only one listed that has 7 terminals like mine. It also says it has a 5,500 RPM cut off which I am guessing corresponds to the 5500 on my existing relay.

I decided to go to autohausaz.com and pick up one. It's a bit more expensive at $71.49 and is a Kaehier, but I need to be a bit economical. Some have said Kaehier parts are not the best quality. I'll give it a try.

The Proctologist

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Just FYI I had this problem and swapped out the relay with no success, I had to jiggle the connections -behind- the relay, MB connections sometimes corrode, I don't know what I jiggled that made it work but I suspect it was the ground wire...when I was restoring my car I ended up having to clean countless connections, hundreds.

Just in case swapping the relay doesn't work, something to consider, I made sure the relay was good by swapping it into other places to verify it wasn't the relay.

rowdie

1986 560SL: '84 500SL: '84 280SL 5 speed: other 107s

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I was not here in 07 but the OPs use of "we" is hilarious.

AHFlowers

Hello

we have an 83 380sl, we arent getting any power to the fuel pump. We are trying to find the relay but we dont know where it is located? Also we dont know which fuse is for the fuel pump, can anybody help?

the engine does start when fuel is sprayed into the manifold.

nobby

nobby

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Outstanding Contributor , Bob's Your Uncle!

83 280 SL- 5 speed-The PIG

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JHTx

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538 Posts

You won't get power unless you are actively cranking the engine. No power with just ign on.
The relay will be on the panel next to the door on the passenger side if US version.
You can find this information on this site. Look at the sticky on the top of the forum
the Encyclopedia Gemanica

nobby

nobby

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Outstanding Contributor , Bob's Your Uncle!

83 280 SL- 5 speed-The PIG

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32,881 Posts

You won't get power unless you are actively cranking the engine. No power with just ign on.
The relay will be on the panel next to the door on the passenger side if US version.
You can find this information on this site. Look at the sticky on the top of the forum
the Encyclopedia Gemanica

Threadus Resurrectus...from 2007!!!

JHTx

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Threadus Resurrectus...from 2007!!!

Yes but it sounded like he has the same problem and just added to the thread.
New user!

nobby

nobby

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Outstanding Contributor , Bob's Your Uncle!

83 280 SL- 5 speed-The PIG

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Yes but it sounded like he has the same problem and just added to the thread.
New user!

LOL. New guy just quoted the OP.

No new info.

Maybe he'll be back.

Posted by: franciscofiret1953oap.blogspot.com

Source: https://www.benzworld.org/threads/83-380sl-no-power-to-fuel-pump.1351417/

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