E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Engine wiring harness

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Old 10-12-2007, 03:06 PM
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E320
Engine wiring harness

Does anyone have an engine wiring harness #124-440-56-32 lying around spare that is for sale. My E320 needs a new one. Fuel mileage went south and idling is rough. Wiring harness is badly deteriorated. Dealer wants $870.00 plus 9% tax. Ouch.
Old 10-12-2007, 09:12 PM
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92 300TE 4Matic
Yikes! $799

http://ebay.com/ebaymotors/Mercedes-w124-440-56-32-Engine-Wiring-Harness



If mine goes I think I'll try to make one or yank the new one off your car.

Last edited by MediumKahuna; 10-12-2007 at 09:14 PM.
Old 10-12-2007, 11:50 PM
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W124's
Those are pretty expensive prices for the wiring harnesses.

I only paid $400 for mine.
Old 10-13-2007, 12:44 AM
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Originally Posted by ChrisDPham
Those are pretty expensive prices for the wiring harnesses.

I only paid $400 for mine.
...that you bought from...
Old 10-13-2007, 02:15 AM
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2013 Land Cruiser, 2007 GL450 [SOLD], 2007 Toyota Tundra Double Cab 4x4 Limited, 2009 Corolla LE
I had replaced a engine wiring harness on 95 E420 for $400 few years back. I got mine from www.mercedesshop.com
Old 10-13-2007, 11:36 AM
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E320
Engine wiring harness

Thanks all. It seem that the best price is the e-Bay listing. Still too much in my opinion but it is MB.
Old 10-13-2007, 12:23 PM
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95 E320 Coupe, Diesel Golf
you should probably buy anew harness, since you will end up in the same boat sooner or later with the old/used one.
Old 10-13-2007, 03:13 PM
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Originally Posted by ZedStyle
...that you bought from...
...that I bought from...

...a Mercedes-Benz Dealership...
Old 10-19-2007, 03:51 PM
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95 E320 Cabriolet, 108K
Here's another source - $853

The engine wiring harness for the E420 is completely different from the E320 - apples and oranges.

I'm not aware of any low cost source for the 94 E320 engine wiring harness. As far as I know the price in this link is as good as any.

http://catalog.worldpac.com/mercedes...tion=002491384
Old 10-19-2007, 05:22 PM
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1993 Mercedes 300e 4-matic (m103 motor)
I have a 93 300e 4matic, how would i know if its time to replace my harness. Also i had a wire short int he engine bay and tracked it to a wire under the fuse box. And in a bundle of wire was like grey silly putty stuff. Is that normal form the factory?
Old 10-21-2007, 12:18 PM
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'90 500SL '07 C280 '98 E320, '19 C43
I have new MB harness for a 92 / 93 400E. Let it go for $700. Paid nearly $900. It will only fit the 92/93 400E without ASR. Probably fit the 500E too.
Old 10-22-2007, 04:17 PM
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95 E320 Cabriolet, 108K
jmoney6, here is a link for some reading on the subject. There should be pictures of what this problem looks like.

http://www.mercedesshop.com/shopforu...d.php?t=166883

The gray putty probably indicates that the cheap-*** previous owner saw bare wires and put a "band-aid" on the situation, leaving you to deal with it properly.
Old 10-22-2007, 04:27 PM
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Originally Posted by nash
Does anyone have an engine wiring harness #124-440-56-32 lying around spare that is for sale. My E320 needs a new one. Fuel mileage went south and idling is rough. Wiring harness is badly deteriorated. Dealer wants $870.00 plus 9% tax. Ouch.
Don't wait too long....electrical shorts in the wiring can cause extensive damage to other electronic components, requiring replacement of these items as well.

Best of luck in your hunt.
Old 09-20-2009, 07:25 PM
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1994 E420
An engine harness from a 93 400E wont fit a 94 e420 will it?
Old 09-21-2009, 11:54 AM
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I recommend spending the $$$ for a new one. Save yourself the hassle of doing the job twice.
Old 09-21-2009, 08:48 PM
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1994 E420
Originally Posted by ALLDATAdiy INFO
I recommend spending the $$$ for a new one. Save yourself the hassle of doing the job twice.
I understand that i should just buy a new one, but i was wondering if the one from a '93 400e would fit because i could get it for free...
Old 09-22-2009, 07:46 AM
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c43
Originally Posted by JSe420
I understand that i should just buy a new one, but i was wondering if the one from a '93 400e would fit because i could get it for free...


IT SHOULD ACCORDING TO THE EPC
Attached Thumbnails Engine wiring harness-engine-harness.bmp  
Old 09-22-2009, 08:02 AM
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1994 E420
Originally Posted by ynavsoy
IT SHOULD ACCORDING TO THE EPC
Thank you ynavsoy
Old 09-22-2009, 08:04 AM
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c43
Originally Posted by JSe420
Thank you ynavsoy
NO PROB IF U NEED HELP JUST PM ME
BY THE WAY MY NAME IS YOSVANY
Old 09-22-2009, 01:39 PM
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1994 E420
Might sound crazy but has anyone tried repairing there own? Obviously the wires aren't in bad shape all the way back, so i was just wondering if someone ever had the time or the urge to try to fix an old harness. I have nothing but time this winter to give it a try so i was just curious if it was even worth the effort.
Old 09-22-2009, 02:10 PM
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95 E320 Cabriolet, 108K
I've heard reports from others who replaced the wires on a bench, one at a time, until the whole engine wiring harness was refreshed. If you go this route, you'll need wire where the insulation can resist underhood temperatures. They aren't that commonly available over the counter, but can be ordered over the internet. And obviously, you'll need to match the wire gauge.
Old 09-22-2009, 07:10 PM
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1994 E420
Originally Posted by Kestas
I've heard reports from others who replaced the wires on a bench, one at a time, until the whole engine wiring harness was refreshed. If you go this route, you'll need wire where the insulation can resist underhood temperatures. They aren't that commonly available over the counter, but can be ordered over the internet. And obviously, you'll need to match the wire gauge.
hmmm thinking about doing this over the winter...
Old 09-24-2009, 05:08 PM
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1995 e420
harness for sale

I work at a mb dealership in ny and I can get you one for 775.00 plus shipping. That is the cheapest you will legally find one. I get employe discount. Also if you need anything else, let me know.

Thanks
MB

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