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When i start the car, the oil pressure gauge go to 3 bars and stay there, when the temperature going hight, the gauge moving down down down, 2, 1 and when going about 80C going to 0 bars. 3 days ago i changed the oil, oil filter and fuel filter but still have a same problem. Now when i put out cable of the oil pressure sensor the gauge stay on 3 and don't moving. Do you think this is bad oil pressure sensor or? I haved a problem with my sump and i was take off it, going to replace and the mechanics tell me the engine is okay on down part, may be possible oil pump.. ohh.. This car have one oil pump or more?
 

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86 190E 2.3L 16V, 2 95 320TE's, 02 S500
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12,745 Posts
More than likely, the problem is the oil sending unit. Known to fail and easy to replace.

Good Luck,

Jayare
 

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1993 190E 2.6, 1990 300SEL, 1992 300SE, 1992 400E, 1987 190E 2.6 murdered by my brother.
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Like Jay said it is most likely your oil sending unit. Unless you have a blown gasket then it will read close to zero or 0. If it was a bad oil pump then your engine would have seized. Giving that it is still running , it is just your sender. What kind of oil are you running?
 

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