Automatic engine start

The engine is started automatically if you:

 - release the brake pedal when HOLD is not activated and the transmission is in position D or N
 - shift the transmission to position R
 - depress the accelerator pedal
 - have switched off the ECO start/stop function by pressing the ECO button
 - switch to drive program S, S+ or M
 - unfasten your seat belt or open the driver's door

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The engine is also started automatically if:

 - the vehicle starts to roll.
 - the brake system requires this.
 - the system detects moisture on the windshield when the air-conditioning system is switched on.
 - the charge level of the battery is too low.
 - the driver's seat belt is removed or the driver's door is opened.

    See also:

    Other status indicators of the navigation system
    O: you have reached the destination or an intermediate destination. New route... or Calculating route...: a new route is being calculated. Off Map or Off road: the vehicle position is outside t ...

    Panic alarm
    ► To activate: press button 1 for at least one second. An alarm sounds and the exterior lighting flashes. ► To deactivate: press button 1 again. or ► Insert the SmartKe ...

    Service messages
    Information on the type of service and service intervals (see separate Service Booklet). You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (U ...