See also:

Starting procedure with the SmartKey
To start the engine using the SmartKey instead of KEYLESS-GO, pull the Start/Stop button out of the ignition lock. Turn the SmartKey to position 3 in the ignition lock and release it as so ...

Centrally locking and unlocking thevehicle from the inside
You can centrally lock or unlock the vehicle from the inside. The central locking/unlocking button does not lock or unlock the fuel filler flap. The buttons are located on both front doors. ...

Important notes
In order to prevent the vehicle's battery from discharging, the interior lighting functions are automatically deactivated after some time except for when the SmartKey is in position 2 in the i ...