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1989 Mercedes Benz 300e Engine oil

Tiny
KNO
  • MEMBER
  • 1989 MERCEDES BENZ 300E
  • 3.0L
  • 6 CYL
  • AUTOMATIC
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?
Sunday, September 14th, 2014 AT 4:56 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,738 POSTS
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.
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Sunday, September 14th, 2014 AT 7:25 PM

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