Hello all this is my first post so here it goes!!!
I have a UK spec 2000 E46 323i SE Saloon and have the following issue. When I turn the car on all the normal warning lights turn on and then switch off as they are supposed to.
After 25 seconds (exactly as I have timed it!!!) the yellow oil level warning light comes on and stays on for exactly 15 seconds (have time this also!!) and then switches off. The light then never comes on again while the car is on. If you switch the car off and on again the same sequence of events occur every time.
I have drained the oil and refilled to make sure the level is correct. My dealer says it is nothing to worry about

but it wasn't working like this when I bought the car. I have removed and cleaned the oil level sensor but this has made no difference. Has any one seen this before? Am I panicing for nothing? the sensor is a dealer only part and is over £100's. Is there a way of resetting the sensor?
Thanking you in advance.