Thread: oil pressure
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Old 10-15-2000, 08:13 PM
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As others have properly pointed out, check your guage before entering panic mode. The best way is to temporarily install a known good mechanical guage.

If you do indeed have oil pressure very near zero at idle, the engine needs attention.

It is a very common and almost always incorrect assumption to blame it on the pump. If the pressure comes up to 3 when you gas it, the problem is almost certainly not the pump. Oil pressure decreases when the resistance to oil flow decreases. This is most always worn bearings; mains, rods and cam bearings. It's a sign of a worn engine.

The good news for you is that the pressure comes to three. Check the guage, and do it, of course, at idle when hot.

Best of luck,

Larry Bible
'01 C Class, Six Speed
'84 Euro 240D, 533K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles
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