Activation conditions

You can activate the HOLD function if:

 - the vehicle is stationary.
 - the engine is running.
 - the driver's door is closed or your seat belt is fastened.
 - the parking brake is not applied.
 - the hood is closed.
 - the transmission is in position D, R or N.
 - DISTRONIC PLUS is deactivated.

    See also:

    Important safety notes
    DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the speed selected on the on-board computer. The steeper the downhill gradient, the greater the DSR braking eff ...

    Overview
    The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using t ...

    Making adjustments in 5 mph (Canada:10 km/h) increments
    ► Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...