Oil Level Reading

[Roland]

Originally Posted by Trawler

Roland,

Do you know why BMW do not use a device that measures the level when cold and the car is on a level surface? Too simple for them

What does the sensor measure, temp, pressure, flow and are there any fancy calculations?

Vielen Dank

Isn't it that all cars have to be checked with engine warm

After asking what the sensor measure, i got strange looks . Looks like you're right with "fancy calculations"

you are welcome

[Trawler]

Originally Posted by Roland

Isn't it that all cars have to be checked with engine warm

After asking what the sensor measure, i got strange looks . Looks like you're right with "fancy calculations"

you are welcome

Maybe you could also organise a lecture on how it works during the 2013 trip.

[giraffe]

It works by applying a voltage to heat the sensor and calculating the time taken to heat it to a set temp , the higher the level the longer it takes to heat thus it calcutates the level . Thats the simple way of explaining it .

[Trawler]

Originally Posted by giraffe

It works by applying a voltage to heat the sensor and calculating the time taken to heat it to a set temp , the higher the level the longer it takes to heat thus it calcutates the level . Thats the simple way of explaining it .

Ok, follow that, but how does it take into account the following:

Cold v's hot day
Gentle v's hard driving
Drop in level once the engine is up to operating temp

[giraffe]

Originally Posted by Trawler

Ok, follow that, but how does it take into account the following:

Cold v's hot day
Gentle v's hard driving
Drop in level once the engine is up to operating temp

Honest answer it doesnt it looks at oil temp , so if its upto or above set temp it will take a reading , if been driven hard around track oil would be hotter and thinner than it would be if its just warmed up gently hence the heating of the sensor will take diffrent amount of time and maywell be the cause of the diffrent level reading .

[Luke]

I might have topped my oil up a bit too much? At idle it's reading 1.1 is that ok or.....?

[Bounce]

Originally Posted by Luke

I might have topped my oil up a bit too much? At idle it's reading 1.1 is that ok or.....?

As 1.1 is the highest reading,you wont now if there is to much in it or not.i would either take the air box off and check the dip stick,or drain a little out.I usually keep mine between 0.7 and 0.9.