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:

    Important safety notes
    WARNING The following factors increase the risk of accidents: • Excessive speed, especially in turns • Wet and slippery road surfaces • Following another vehicle too closely The drivi ...

    Deactivating the HOLD function
    The HOLD function is deactivated automatically if:  - you accelerate and the transmission is in position D or R.  - you shift the transmission to position P.  - you apply t ...

    Tradition: 40 years of accident research at Mercedes-Benz
    This close cooperation between Daimler safety specialists, the emergency services and the police has a long tradition: in 1969 Mercedes-Benz started its ongoing accident research programme, in whi ...