See also:

After the ignition is switched off
When the remote control is removed or the ignition is switched off, the windows can continue to be operated for approx. 1 minute as long as no door is opened. ...

Data transfer
The status of the data transfer is displayed. 1.  "BMW Assist" or "ConnectedDrive" 2.  Open "Options". 3.  "Data transfer" ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...