Beverly Sharp

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

oldsinner111

oil pressure senders do get old.be sure to check if wiring has been replaced,and throttle body too.I avoid them under 1996

Beverly Sharp

Is the wiring in this year model those degradable types?
James

oldsinner111

yep

Beverly Sharp

So, does this car have one or two such harnesses, and what do they cost?
James

oldsinner111

one is anywhere from 600 to 1000 usd. The throttle body,you can find used for 100 to 500.

burgca

Here is a video explaining the issue:

Beverly Sharp

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

burgca

Can't locate a installation video on the m119 but here is a overview of the process from Kent the guru on Mercedessource