After charging the battery to full (overnight), I disconnect the charging cable.
Everything seems normal.
15 min later , I walk in the garage, my M3 starts a humming sound (which I have heard many times previously)
Q1: does the car think I am about to drive it so it precondition the battery ? If not, what could cause this ?
Since I do not drive the car yet, I turn off Blue Tooth on my cell phone. Then wait for 30 min, walk near the car again. No sound which is what I expected. Does this make sense ? If it does, that means I should only turn ON blue tooth when I am about to drive the car.
Battery preconditioning consumes quite some percentage of the battery.
Attached the energy charts showing where the energy goes since the last full charge.
Everything seems normal.
15 min later , I walk in the garage, my M3 starts a humming sound (which I have heard many times previously)
Q1: does the car think I am about to drive it so it precondition the battery ? If not, what could cause this ?
Since I do not drive the car yet, I turn off Blue Tooth on my cell phone. Then wait for 30 min, walk near the car again. No sound which is what I expected. Does this make sense ? If it does, that means I should only turn ON blue tooth when I am about to drive the car.
Battery preconditioning consumes quite some percentage of the battery.
Attached the energy charts showing where the energy goes since the last full charge.