Automatic locking feature

The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are turning at a speed of more than 9 mph (15 km/h).

You could therefore be locked out when:
• the vehicle is being pushed.
• the vehicle is being towed.
• the vehicle is being tested on a dynamometer.

To deactivate: press and

hold button 1 for about five seconds until a tone sounds. To deactivate: press and hold button 1 for about five seconds until a tone sounds.
button 2 for about five seconds until a tone sounds. To activate: press and hold button 2 for about five seconds until a tone sounds.

buttons and If you press one of the two buttons and do not hear a tone, the relevant setting has already been selected.

You can also switch the automatic locking function on and off using the on-board computer.

    See also:

    Belt height adjustment
    You can adjust the seat belt height on the driver's seat and the front-passenger seat. Adjust the height so that the upper part of the seat belt is routed across the center of your shoulder. ...

    Setting the glove box air vent
    When automatic climate control is activated, the glove box can be ventilated, for instance to cool its contents. The level of airflow depends on the airflow and air distribution settings. Cl ...

    Low-beam headlamps (halogen headlamps)
    Due to their location, have the bulbs in the left-hand headlamp changed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. •► Switch off the lights. •► ...