While changing my instrument cluster on my 84 300DT, I noticed what looked like a small trace of oil on the bottom leather part of the cluster. Having read other posts, I think I have read that there is actually oil in the line that runs to the gauge. Is that true? Hard to believe there is actually oil in that line to read pressure. My other cars has a sensor under the hood that sends an electronic signal to the gauge.If this is true, I guess i have dislodged the oil line while replacing the lighting. ANy ideas/comments greatly appreciated/

Thanks,
Harry

Yes, this is true.

Why should this be so hard to believe? Isn't OIL pressure what is being measured?

Computerized and electronic gadgetry hasn't been with us very long.

If you haven't broken the oil line, then the connection is most likely lose. Tighten it and then give it a try.

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Don't Chrome them; polish them

Well, water temperature measurement does not require pushing water up to the gauge. This technology (electronic) has been around for quite a while.thanks for the info.

Thanks,
Harry

Has anyone experienced this oil line coming loose or breaking a spitting oil out all over the back side of the instrument cluster? I'm getting worried now.

Thanks,
Harry

Yes a number of people have got there carpets oiled that way and if it is a diesel that is not the only way you can oil your carpets. The engine shut off mechanism attached to the ignition key can do it also. Got to be careful now days with all this high tech equipment.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!

nope. lines don't fail- the GAUGE fail usually after it's been wrenched on.


Can make a stinky mess as the path can be long and some don't notice it until their foot is slipping off the brake. Seen them bad... nasty to clean. Replace carpet, sound proofing, dash lower insulation, and just clean everything else.

Keep an eye on it and replace it if it's questionable.

Michael