Will a Mercedes-Benz car automatically lock if left unlocked?

[DiBlakely]

If the door of a Mercedes-Benz is opened and then closed without locking it, it will not automatically lock. Automatic car locking: Automatic locking while driving, also known as speed-sensitive auto-locking, is an electronic device that automatically presses the lock button on the door when the vehicle reaches a preset speed to prevent accidental opening of the door. Specific implementation rules: When the vehicle speed reaches the preset speed (usually set by the manufacturer, mostly between 10 km/h to 20 km/h), the lock button will automatically press down to prevent accidental opening of the door. This is the most common method of automatic locking while driving used in many car models. There are also other methods of automatic locking while driving.