Ok. If you can’t see any oil when the engine is warm and has been sitting for a couple minutes and is vertical, you need to add oil until it reaches the middle of the easy to read glass window.Look I am tired of the bullshit you are giving me Please read what I have said. I was not able to see any oil in the sight glass, this is not my first ride, got it ! ! !
I guess people are having a tough time figuring out your problem as your initial post was considerably vague.
Also they may be wondering if you have a special problem (out of the normal) because a 5 second google of “how to read oil level on a bmw” would likely lead to 5000 hits and 20 videos.