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 ...

Maintaining/storing the speed
Press the button. or: Press the rocker switch while the system is interrupted. When the system is switched on, the current speed is maintained and stored as the desired speed. It is d ...

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...