You want to use a smartphone mounted on your motor vehicle as a navigation device. What should you observe?

You answered correctly. When using a smartphone as a navigation device in your vehicle, you must always enter the destination while the car is stationary, not while driving. This helps prevent distractions and accidents. If possible, you should avoid operating the device while driving at all, because any manual use is only allowed if it doesn’t distract from traffic and is as quick as a glance. Additionally, using the device's voice output increases safety, as you can follow navigation instructions without looking at the display or touching the device. All three points work together to keep your attention on the road and comply with German traffic safety regulations regarding the use of electronic devices while driving. Remember these principles any time you need to use your phone as a navigation aid.