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#1
04-11-2012, 08:28 AM
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Longest Lasting Wiring Harness - w124 - Thread
I'm curious to see how long w124 owners have been able to remain on their original wiring harness. Plenty of Mercedes people / mechanics have said "its when, not if," but how long can it go?
Ours: 1995 E320 wagon, still on original harness, some flaking / cracking, but no issues, 125k miles, 17 years old. Post your w124's year and current mileage if still original, or age and approximate mileage when yours failed.
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________________________ 2002 Mercedes-Benz E320 4Matic 1995 Mercedes-Benz E320 Wagon 2005 Land Rover LR3 V8 SE 1999 Audi A8 4.2L quattro 
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#2
04-11-2012, 09:51 AM
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My 500Es upper harness was done around the year 2000-2001 at about 110K miles. It prolly should have been replaced a year or so before that too. Now the car is at 157K miles.
Anyone with an original harness at this point is well beyond borrowed time ! 
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#3
04-11-2012, 04:02 PM
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My '93 500E harnesses were done in 6/11 @ 140k.
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Jay Lifetime Member AA (Autoaholics Anonymous) '93 500E (totaled 9/11 by a clueless idiot) '01 CL55 '95 E300 Diesel '90 Porsche Carrera 2(supercharged) '03 Porsche Supercup www.meangreentravel.com
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#4
04-11-2012, 06:30 PM
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1993 300 E (2.8) 234K miles. Original harness
This car is amazing.
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#5
04-12-2012, 07:10 AM
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Well, it looks like some of these things can last awhile. Probably climate has an influence. Hot summers and cold winters should speed up harness deterioration. At 19 years and 234k miles, I think Martin has the record so far! Let's keep the numbers coming!
__________________
________________________ 2002 Mercedes-Benz E320 4Matic 1995 Mercedes-Benz E320 Wagon 2005 Land Rover LR3 V8 SE 1999 Audi A8 4.2L quattro
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#6
04-13-2012, 01:14 AM
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1992 400E : 20 years and 266,786 miles.
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1992 400E current 1988 300E sold 1973 280C totalled 1973 280SEL never got it running 1971 250C my first love but rusted out
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#9
04-13-2012, 01:02 PM
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They can last a long time if you never touch the wiring. One it's flexed, such as for a head gasket change, the insulation spalls off and you're practically guaranteed to have bare wires touching each other. Anybody who has removed the armor on the wire bundle and flexed the wiring knows what I mean. The insulation basically turns to dust.
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#10
04-13-2012, 01:43 PM
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While I generally agree with Kestas' comment, I will say that our E320 has had the head gasket replaced twice now for oil leakage issues...once at around 80k and once at 120k. The harness did survive.
__________________
________________________ 2002 Mercedes-Benz E320 4Matic 1995 Mercedes-Benz E320 Wagon 2005 Land Rover LR3 V8 SE 1999 Audi A8 4.2L quattro
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#11
04-13-2012, 09:30 PM
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It's a little touchy when it's raining. Never does the same thing twice. Just minor hiccups though. Also will miss sometimes and then it will run perfectly when it warms up a bit. I cut the outer wrapping on the two wires going to the two-prong temp sensor, and they are bare, with little bits of insulation falling out around them.
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1992 400E current 1988 300E sold 1973 280C totalled 1973 280SEL never got it running 1971 250C my first love but rusted out
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#12
04-13-2012, 09:48 PM
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Quote:
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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg
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#13
04-14-2012, 09:52 AM
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1990 300E.....still original harness, not in the best of shape, but no malfunctions so far....
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#15
04-16-2012, 07:36 AM
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Quote:
__________________
________________________ 2002 Mercedes-Benz E320 4Matic 1995 Mercedes-Benz E320 Wagon 2005 Land Rover LR3 V8 SE 1999 Audi A8 4.2L quattro
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