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  #1  
Old 04-19-2001, 04:07 AM
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Join Date: Mar 2001
Posts: 223
I have some photos of my 190e engine compartment at the url shown below, can anyone tell me what parts the circled items are? I especially want to know which one is the over voltage relay...

http://www.geocities.com/machnumber3
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1996 E320
2000 C230 Kompressor
1988 190e 2.3 - 225K miles, owned for 7 years. I cannot say enough good things about this car. Very well built, even at 225 it ran like new.
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  #2  
Old 04-19-2001, 04:51 AM
glmoy
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Mach,
"I finally found the very very slow antifreeze leak, it is coming from the circled item above, I think it is
the a pump that only comes on when the heater is turned on."

This is the auxillery water pump.

Part with the fuse on top is the overvoltage relay.

"The one at the upper right has a cap that unscrews and there are a bunch of holes in it."

This is where dealer plugs in his computer. Diagonstic plug.

Can't remember what the other part is called but, you
unplug one lead from it before checking timing.

Gary
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  #3  
Old 04-19-2001, 11:42 AM
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Join Date: Dec 2000
Posts: 368
That part is the ignition control module, aka EZL.

Vinamg
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  #4  
Old 04-19-2001, 12:41 PM
vadrill
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Part to the left of the Overvoltage Protection Relay is the Fuel Pump Relay, which incorporates the Kickdown switch for the automatic transmission.

Hope this helps.
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  #5  
Old 04-19-2001, 01:19 PM
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Join Date: Mar 2001
Posts: 223
The OVR is the one with the Red top right? and to the left of that is that fuel pump relay? I just had that replaced a few months ago after the car kept stalling unexpectadly, including on the freeway going 70 mph, whew
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1996 E320
2000 C230 Kompressor
1988 190e 2.3 - 225K miles, owned for 7 years. I cannot say enough good things about this car. Very well built, even at 225 it ran like new.
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  #6  
Old 04-19-2001, 04:53 PM
vadrill
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Yes the one with the red top in the middle of the photo is the OVP relay. Have you checked the fuse to make sure it's OK?. And yes, to the left is the Fuel Pump Relay. I went through a couple of them in a few months. If the fuel pump isn't operating correctly, it can put an undo load on the Fuel Pump Relay, and eventually burn it out. Only until I changed the fuel pump did the problem finally cease.

Try this. The fuel pump is located under the car directly beneath the back seat area of the car. With the engine running, get on the ground (really no need to crawl too far under the car) and listen to the fuel pump. A normal fuel pump should be no louder than the hum of a small electric motor. The hum should also be constant without sputtering.

If the fuel pump is loud than it may likely be heading south on you. Prior to replacing mine, I could actually hear it was while I was driving. It was loud and laboring.

Again, if the fuel pump is struggling to get fuel to the engine, it's placing an added strain on the Fuel Pump Relay, and will likely head south as well.

Let me know how it goes.

Brian
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