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 ...

Charging the battery
In the vehicle, only charge the battery via the terminals in the engine compartment, with the engine switched off. ...

Storing
Storing 1. Switch on the radio ready state or the ignition 2. Set the desired seat, exterior mirror and steering wheel positions. 3. Press the button. The LED in the button lights up. 4. ...