loosing oil from a sensor??

It maybe the oil pressure switch, just below the intake manifold. If it is like my 2000 SL2, it would be metric thread and use a sealing washer [ not crush ring ]. You should be able to just tighten it, IF you can get a wrench to it without removing the intake manifold.

Sensors do indeed spring leaks. On my minivan, the oil pressure switch started to leak in the area between the metal body and the plastic end with the connector. With 90K miles on it, couldn't complain. New part cost in the neighborhood of $20. Seems that the old sensor had an O-ring between the metal and plastic pieces that developed a crack. Oppie

tks. I'll try to tighten it this week end. Let you know how I make out begining of week....

Talking about sensors, if you ever have a heavy fuel consumption in cold weather I found out that the air temperature sensor is a must change. Just a little note...

The oil pressure sensor in my 95 SW1 went bad a couple of months ago. Dropped 2 quarts in 35 miles bad. Lucky for me that I check the oil every day. It was easy to replace from under the car. Strange thing was that no auto parts stores had the sensor in stock on the weekend when I was fixing it. Got a new one at NAPA for $14, but it took them a day to get it.

-David

Hello there, Well I had a pretty good weekend. And guess what, I was wrong!!! 1000000 apologies..... I ewnet down to my brother in law over thte week end. He's better equiped than I. We raised the car and had a real good check underneath. Cleaned it good and found out that there was an accumulation of oil underneath the valve cover. So I guess it was a little higher than I thought. So that's where the problems lies.... Thanks to all