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Old 09-07-2012, 01:49 PM
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86560SEL 86560SEL is offline
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Join Date: Jan 2003
Location: east Tennessee (southeast USA)
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Quote:
Originally Posted by Targa-NF View Post
Hey everyone. I know this subject has been beaten to death... And is a sore spot for a lot of us. Anyway I have just added a 1992 S500 to the fleet and she has a few issues with SLS and wire harness.
Are you sure its a 1992? The "S500" name didnt roll around until 1994. I am guessing you either have a 1992 500SEL or a 1994-95 S500.

Quote:
Originally Posted by tecqboy View Post
I thought that 1992 was before the engine wiring harness issue, maybe wrong. But I'd check for a problem in the VDO, possibly the "bad capacitor" issue. Spray and clean the VDO plug contacts with contact cleaner.
Yeah, I have heard alot of problems are not uncommon with the early W140. Thankfully the '93 I am hopefully getting already have the replacement upgrade from the dealer. I have heard that the very early '92 models (made in late '91) didnt have the wire harness issues, but I cant say for sure. I know my uncle has a '92 300SE (W140) that was made in late '91 and he has never had a wiring harness issue and its never been replaced... they bought the car new.

Quote:
Originally Posted by MAVA View Post
Targa,

In my opinion it is where it is exposed to the elements-Heat and light...

My 1996 S320 does not have the problem in the engine compartment, but sure has it in the mirrors. The test is :

Fold the mirrors from the button near the shifter if they stop half way. It is because the wiring is shorting together, and the fuse has just popped! Look at the folded mirrors for exposed wiring. If the mirrors fold and come back, I would not worry about in the mirrors.
Thats aht I have heard as well. I dont think that the 1996 had the bad engine wiring harnesses, I think that was the first year of the change. However, I think that wiring stayed in the mirrors on all of them up through '99.
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