My 1991 mercedes benz 190e oil pressure is reading high. What could be causing this?

Asked by Dec 14, 2014 at 12:53 PM about the 1991 Mercedes-Benz 190-Class 4 Dr 190E 2.3 Sedan

Question type: Maintenance & Repair

3 Answers

64,365

Most of the time ,this is a sign of bad oil sending unit,or guage going bad,but to be on the safe side,go have it checked.

1,565

Too much oil can be worse for an engine than not enough. The cheapest first fix should be to change your oil and filter and see if this results in a change; next would be the sender sensor. The last thing you want to do is replace the gauge as they are very expensive new ($600+); if you need a used one make sure it is specific to your year.

1 out of 1 people think this is helpful.
1,565

Just wanted to add that the oil pressure gauge on this era of Mercedes always pins to the top under accleration and rarely comes below 2/3rds while the engine is on.....in case this was your concern. If this is what yours is doing there may be nothing wrong.

1 out of 1 people think this is helpful.

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