1989 Mercedes Benz 300e Engine oil

1989 MERCEDES BENZ 300E
3.0L • 6 CYL • AUTOMATIC
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KNO
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I own a Mercedes-Benz 300 E Model 1989. The engine oil light goes on at times, yet I have checked the dipstick and the oil seems full and in good shape. What is the problem? And is it serious?
Sep 14, 2014 at 4:56 AM
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CARADIODOC
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The oil warning light refers to oil pressure, not level. You didn't list the mileage or any other history so anything is a guess. At high mileages, bearing wear inside the engine leads to low oil pressure. Oil with a viscosity that's too thin will do that too. You also could have nothing more than a defective oil pressure sending unit. Your mechanic can identify that by checking the actual pressure with a mechanical gauge.
Sep 14, 2014 at 7:25 PM