I've had my M3 for 3 months so I am accustomed to the muted sound that the car usually makes when charging, heating and cooling down the battery. But yesterday morning, I found my car making a concerning noise.
Here's a video:
It sounded like a bee, and could be heard 50 ft away. The car was charging at 24A / 240V but only showing 10mph in the charge speed (heat/ac/seat warmers all disabled), where it usually displays 25mph. I stopped the charge, started it again: noise gone, 25mph.
What could it have been? Slightly concerned to let my car charge alone at night now.
Here's a video:
It sounded like a bee, and could be heard 50 ft away. The car was charging at 24A / 240V but only showing 10mph in the charge speed (heat/ac/seat warmers all disabled), where it usually displays 25mph. I stopped the charge, started it again: noise gone, 25mph.
What could it have been? Slightly concerned to let my car charge alone at night now.