1st Gear Member
Join Date: Nov 2010
Location: Naracoorte, South Australia
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Oil Level Sensor (and so on) E34 525i 1989
One of last few little jobs to do on the E34
Oil level sensor light is on permanently
Checking resistances on the leads to the sensor seems to indicate it is fupped duck.
On one lead (dynamic switch) switch open means low oil level and I assume Open is the test value?
On the other lead (static switch)switch closed means low oil while a resistance of 1k means OK
Checking at the sensor plug I have 0 ohms resistance to ground on both leads.
are these things cleanable or repairable? Is there a likely stuck float/s inside? OR do I just have to bite the bullet and replace it?
OR do I just ignore it and keep an eye on the dipstick?
I can get one from wreckers for $75, how much of a pain is it to change? Its the one that goes in from the top of the oil pan.
Oh and by the way how do you disconnect the main harness connector? In the Bentley manual it looks easy but the ring is very hard to move and I don't want to break it.
Car seems to be running OK after all the work and I'm starting to not hold my breath every time it goes driving. Very impressed with the way it handles. Keeping a close eye on the coolant level.
I'm sure there are a couple of more suspension and steering bits to do but they can be delayed until the exchequer recovers.
My daily is a Mitsubishi HSGR (but I wouldn't mind an e34 525i)