With the car at operating temperatures, if I check the oil with the engine off, it will just show: Oil OK. If I try to check the oil with the engine running, the gauge will just keep running through the check from left to right with no result until it just goes away. A couple of days ago, while I was showing my car to my son, he commented on the ticking noise and asked what kind of oil I was using (BMW Castrol) and what the level was. I showed him the oil check button and pressed it, but the gauge went to: [ ] and stopped instead of going through to:      as usual. I was concerned and went to the manual, and followed written procedures. Following procedures it just comes up as Oil OK.
There were no 'M's available when I purchased my car, unfortunately. Besides, I am a little too old to be doing the clutch thing anymore. Gives me leg cramps.