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S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

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Old Sep 19, 2016 | 07:44 PM
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Beverly Sharp
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E430
S500
I'm considering an absolutely beautiful '95 S500 (80K), which looks almost like it just came out of the factory. However, I have one question: when the engine idles, the oil pressure needle drops to near 0, not totally all the way to 0, but close; then when you accelerate, the needle goes back up to what you would expect as normal. Is there an indication of a problem here, or is this normal?
Thanks,
James
Dallas, Texas
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Old Sep 20, 2016 | 04:36 AM
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s320
oil pressure senders do get old.be sure to check if wiring has been replaced,and throttle body too.I avoid them under 1996
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Old Sep 20, 2016 | 09:33 AM
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Is the wiring in this year model those degradable types?
James
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Old Sep 20, 2016 | 02:00 PM
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s320
yep
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Old Sep 21, 2016 | 01:26 PM
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E430
wiring harness
So, does this car have one or two such harnesses, and what do they cost?
James
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Old Sep 21, 2016 | 02:19 PM
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s320
one is anywhere from 600 to 1000 usd. The throttle body,you can find used for 100 to 500.
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Old Sep 26, 2016 | 06:27 AM
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'97 S500 Coupe, 2016 AMG S63 Coupe, 2007 Audi Q7
Here is a video explaining the issue:
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Old Sep 26, 2016 | 09:40 AM
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Burgca: thank you for sharing the video; it was very helpful. I wonder if you whether there is a video showing the actual installation of a new wiring harness? Thank you.
James
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Old Sep 28, 2016 | 12:53 AM
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Can't locate a installation video on the m119 but here is a overview of the process from Kent the guru on Mercedessource

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