The concept

The central locking system becomes active when the driver's door is closed.

The system simultaneously engages and releases the locks on the following:

▷ Doors.
▷ Trunk lid.
▷ Fuel filler flap.

    See also:

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    Deactivating HDC
    Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...