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:

    Please bear the following in mind
    For safety reasons, Mercedes-Benz recommends that you only use Tires and wheels which have been approved by Mercedes-Benz specifically for your vehicle. These tires have been specially a ...

    Everything considered: integral Mercedes-Benz safety concept
    The comprehensive Mercedes approach to integral safety also applies in the new R-Class. This trailblazing safety philosophy goes well beyond compliance with standardised crash test regulations. It ...

    Checking the battery
    Press the or button. The battery is working properly if battery check lamp 1 lights up briefly If battery check lamp 1 does not light up briefly during the test, the battery is dischar ...