Oil Level Sensor
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Newbie
Joined: Nov 2008
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From: Granby, CT
1993 Mercedes Benz 300E 4Matic
Oil Level Sensor
Hi All, I have a 1991 300E 4Matic with 112k miles. I have noticed oil drips in my garage and my local shop diagnosed it coming from the oil level sensor and head gasket. The cost to repair both right now is not feasible, but they felt the sensor was the main culprit. I plan to have the sensor replaced, but am wondering if the sensor itself is prone to leaking or if it might just be the o-rings that are not sealing. It seems to be functioning correctly as the warning light has come on when the oil level drops below the mid-point on the dipstick. Can anyone advise me on this? Thanks, Richard
Newbie
Joined: Oct 2012
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2003 Mercedes E500
I am planning to buy new sensor, I don't want to go there twice.
Also I just have change oil, So I guess I have to wait till next oil or I can drain and reuse same oil?
Thanks for your help in advance.
Newbie
Joined: Aug 2004
Posts: 11
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As I recall the sensor is above the oil level, so you don't have to drain the pan. Just loosen the bolts a little and wiggle the sensor loose, if oil starts dribbling out then I'm wrong 
If you look at a new sensor you'll see that it hangs down inside the pan (that is, it doesn't pull straight out), so as I recall you tilt it as you remove it . It makes sense once you start fiddling, and it's an easy job.
If you look at a new sensor you'll see that it hangs down inside the pan (that is, it doesn't pull straight out), so as I recall you tilt it as you remove it . It makes sense once you start fiddling, and it's an easy job.
