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Old 03-01-2009, 11:10 AM
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Join Date: Feb 2009
Location: London CANADA
Posts: 3
1992- wiring harness

could someone list the various symptoms of wiring harness failure they have seen? ASR and limp home seem to be the most common. Are there others?

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Old 03-01-2009, 11:15 AM
Ron in SC's Avatar
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Join Date: Aug 2003
Location: Charleston, SC
Posts: 1,095
I don't think 1992's had wiring harness problem.

I have two 1992s. One was wrecked and I removed engine form one and put it in the other 1992 and harness on both cars was fine althought a little stiff in some places.
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Old 03-01-2009, 11:38 AM
PLeeson's Avatar
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Join Date: Apr 2007
Location: Iowa
Posts: 32
Very easy to check -- just look at the brown ground wires on the top of the engine.
Insulation rot is obvious, crumbles if touched.
In my 1994, it was everywhere, but a simple repair.

Prior cars:
1971 250
1983 380SEL
1986 190E2.3
1987 300TD
1994 SL500
2001 E320 4Matic
2003 SL500
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Old 03-01-2009, 01:36 PM
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Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
The only 92 with the congenital wiring harness issue is the 400E. Most common symptom for all is misfiring. ASR and limp home so many possible causes - bad wiring harness not really a significant one.

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