Mercedes-Benz C-Class Manuals

Mercedes-Benz C-Class Owners Manual: Switching the power supply or ignition on without starting the engine

Mercedes-Benz C-Class Owners Manual / Driving and parking / Driving / Switching the power supply or ignition on without starting the engine

WARNING Risk of accident and injury due to children left unattended in the vehicle
If children are left unattended in the vehicle, they could:
  • open doors, thereby endangering other persons or road users.
  • get out of the vehicle and be hit by oncoming traffic.
  • operate vehicle equipment and become trapped, for example.

In addition, children could also set the vehicle in motion, for example, by:

  • releasing the parking brake.
  • shifting the automatic transmission out of park position P.
  • starting the engine
  • Never leave children and animals unattended in the vehicle.
  • When leaving the vehicle, always take the SmartKey with you and lock the vehicle.
  • Keep the SmartKey out of the reach of children.


  • The SmartKey is in the vehicle and is recognized.
  • The brake pedal is not depressed.


  • To switch on the power supply: press button 1 once.

    You can activate the windshield wipers, for example.

The power supply is switched off again if the following conditions are met:

  • You open the driver's door
  • You press button 1 twice.
  • To switch on the ignition: press button 1 twice.

    The indicator lamps in the instrument cluster light up.

The ignition is switched off again if one of the following conditions is met:

  • Vehicles with automatic transmission: you do not start the vehicle within 15 minutes and the transmission is in position P or the electric parking brake is applied.
  • You press button 1 once.

    Starting the vehicle

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