In addition to UWB technology for the key fob, BMW offers Digital Key Plus as an option for several models, including the BMW 220i Active Tourer. This allows the owner to store the electronic key in the digital wallet on a smartphone. For this to work, the "My BMW" app must first be downloaded and installed to the owner's own smartphone. For those who opt for the key fob, the door unlocks as if by magic shortly before you reach the vehicle and also locks automatically not too long after the driver leaves the car. The engine can also be started by pressing the start button in the center console, because as soon as the owner of the key enters, the car recognizes the driver.
The app offers numerous information and functions as well. For example, the current fuel level and approximate range can be viewed on-the-go. The app can also be used to lock and unlock the vehicle simply by pressing a button on the corresponding symbol. Anyone who has forgotten the location of the car can press the "Vehicle Finder" button and the exact position will be displayed on a map.
Even if the smartphone battery runs out, the system takes care of that issue: all the driver has to do is hold his or her smartphone directly up to the door handle. The doors unlock via the NFC chip integrated with the smartphone itself. In addition, every BMW customer continues to receive a conventional key fob with buttons in case the smartphone is lost or stolen. What else is practical? The digital key can also be shared with other people, such as family members, via the app.