What must you do when leaving your car?

When leaving your car, it's crucial to ensure safety and prevent unauthorized use. The first step is to look out for traffic behind you before opening the door, which helps avoid collisions with cyclists or passing vehicles. Next, securing the vehicle against rolling away is essential, especially on an incline, to prevent accidents that can result from unintended movement. Lastly, you must secure the vehicle against unauthorized use, which includes locking the doors to safeguard your property and prevent theft. Following these steps aligns with German traffic regulations that prioritize safety for both drivers and pedestrians. Each part of the correct combination plays an essential role in promoting road safety and vehicle security.