See also:

Jump-starting
If the car's own battery is flat, your BMW's engine can be started by connecting two jumper cables to another vehicle's battery. You can also use the same method to help start another ...

ConnectedDrive or BMW Assist
...

Adjusting the volume
Adjusting the volume Turn the knob during an announcement. ▷ The volume remains constant even if the volume of other audio sources is changed. ▷ The volume is stored for the remote ...