Levelling switch in oil pan

[raimo]

Well I bought this m50b25 engine from a '91 525i. it had a levelling switch in the oil pan (#11)

http://www.realoem.com/bmw/showparts.do?model=HD51&mospid=47375&btnr=11_1898&hg=11&fg=10

but the oil pan didnt suit my 325iX -> 325i rwd m50 conversion, so i swapped it for a oil pan, that came from a 325i. but the new oil pan doesnt have that switch.

http://www.realoem.com/bmw/showparts.do?model=CB31&mospid=47444&btnr=11_1117&hg=11&fg=10

what is that switch for ?
is the switch in the 3series engines in somewhere else or can i just leave the plug in my harness unplugged ?

[KangamangusDriver]

I believe it is for the dummy light when you run low on oil.
I bypassed mine, machined a aluminum dummy plug to fit in place of it.

[trent]

I believe it is for the dummy light when you run low on oil.
I bypassed mine, machined a aluminum dummy plug to fit in place of it.

There is a factory plate that will also go there.

[Mike B.]

I wired it into the check panel.

[raimo]

So no need for it. Im going to install an oil pressure gauge anyway, so when theres no oil, there cant be any oil pressure anyway.

[BDSax]

does the e36 motor harness have a low oil plug?

[1990m3]

i just left mine there since I had no suitable alternative to replace it. Don't plug it in, no problems.

[LINUS]

So no need for it. Im going to install an oil pressure gauge anyway, so when theres no oil, there cant be any oil pressure anyway.

Are you expecting to run a pressure sender there? - if so, I've never heard of being able to pull a pressure signal from an oilpan. No pressure there. Great spot for an aftermarket temp sender, but you need to come up with a solution for pressure sending up by the oil filter - you get pressurized oil there.

[raimo]

Are you expecting to run a pressure sender there? - if so, I've never heard of being able to pull a pressure signal from an oilpan. No pressure there. Great spot for an aftermarket temp sender, but you need to come up with a solution for pressure sending up by the oil filter - you get pressurized oil there.

No, not from there.