Oil level sender gasket replacement

[lsmalley]

1990 190 e 2.6

Do I need to drain the oil in order to replace the oil level sender o-ring?

[lee polowczuk]

Originally Posted by lsmalley

1990 190 e 2.6

Do I need to drain the oil in order to replace the oil level sender o-ring?

i need to do this on a 104 sometime...yes...you need to do it during an oil change.... no big deal

[hookedon210s]

No big deal on a M116, 117, 103 or 104. On the M112/113 the sensor will eventually fail and the oil sub pan must be removed to replace it. Mark

[lsmalley]

I did the job by jacking up the car from the front driver side high enough to not lose much oil. Unfortunately I thought the o-ring was a simple 40mm o-ring so the one I had did not fit and the old one broke in half when I removed. However, I did my rear brakes and caliper repair about 2 years ago and ironically after I saw what the o-ring looked like once I removed it, I remembered the caliper repair kit having these 4 round rubber stoppers to protect the caliper.....the rubber stoppers were the exact size and thickness (not sure on thickness since old o-ring was brittle and flat) as the o-ring! Put that on and it was a perfect fit! Sealed everything up and was good to go. 10-15 minutes tops. And didn't lose much oil at all.