Comfort Access.

This feature allows you to lock and unlock the vehicle as well as close the windows without having to physically press buttons on the display key or key fob. 

For comfort access to work, you simply need to have the key on your person. The vehicle will automatically detect the key when it's within range.

Open and Close the Trunk From Inside Your BMW. 

You can open and close the trunk from inside the vehicle without leaving the driver's seat. This is useful on occasions when someone outside the vehicle needs quick access. The trunk button is located near the storage pocket on the drivers side door.