With an active BMW Digital Key Plus, you can use the My BMW App to control the automatic doors of equipped BMW 7 Series and i7 models.
Simply tap the remote-control option within the My BMW App and select which door/doors you would like either opened or closed.
Please note that the doors will only move as long as you're holding the button.
Link to watch BMW Genius USA How-To Video: How to control the Automatic Doors of the 7 Series & i7 with my BMW App | BMW USA
