Oil lite on my E46 comes on when I drive

[bmwnetgui]

What could this mean? My oil light on the gauge comes on whilst I am driving and stays on till I turn the vehicle off. When I start the vehicle, it's off but after driving for a while, the light comes on. What could this mean?

[Relevart]

Check your oil level.
Add appropriate oil if it is low.
Check for oil leaks.

If oil level OK check oil pressure sensor.

I wouldn't drive car with oil light coming on and staying on, unless I intend to kill the engine .

[TECH]

If the light is green, it means the level is low. If it's red, there is not enough oil pressure. You don't want to run the engine with low oil pressure. Usually, the oil pressure switch is the culprit, but why chance driving with a clogged oil filter, or a bad pump?

Most of the time, it's usually just a quart low on oil-green light.

[jkloese]

My oil light started coming on when I shut the car off, and it was amber or yellow. Now it comes on yellow when im driving, oil level is fine. I even had BMW check my oil and tell me what was wrong. The said that my oil level sensor was contaminated. $160 dollar sensor, Ill deal with it for now.

[TECH]

Yeah, the sensors go bad from time to time... :P