They don't seem to be mode changes. Today I drove with ASS off as much as I could remember. I'm still changing modes ( Sport, Sport+ and Comfort ). I didn't want Eco Pro as it might trigger ASS. The line was mostly flat.... Maybe its the number of engine starts?
It could be an indication of what the larger consumption bars are. Like a representative zoom in, but I don't know.
Current: F87 M2 MT
Previous: F30 - 335i AT, E90 - 335xi MT, E90 - 330i MT, E46 - 330i MT