You can unlock only the driver's door or all the doors and the boot lid via the central locking system.
You can use the infotainment system* to select which doors are unlocked by the central locking system.
Select: Function selector button CAR > control button Systems / Car systems > Vehicle settings > Central locking > Unlock doors.
If you select all, all the doors and the boot lid will be unlocked when you press the 
button on the remote control key.
button on the remote control key.If you select driver, only the driver's door will be unlocked when you press the button on the remote control key. On vehicles with convenience key, only one door will be unlocked (whichever door you grip by the handle).
button on the remote control key. On vehicles with convenience key, only one door will be unlocked (whichever door you grip by the handle).When the driver* setting is activated, you can still unlock all the doors and the boot lid together by pressing the button on the remote control key twice or turning the key anti-clockwise -A- twice in quick succession.
button on the remote control key twice or turning the key anti-clockwise -A- twice in quick succession.