Activation conditions

In order to activate DISTRONIC PLUS, the following conditions must be fulfilled:
- the engine must be started. It may take up to two minutes after pulling away before DISTRONIC PLUS is operational.
- the electric parking brake must be released.
- ESP® must be active, but not intervening.
- the transmission must be in position D.
- the driver's door must be closed when you shift from P to D or your seat belt must be fastened.
- the front-passenger door and rear doors must be closed.
- DSR must be deactivated.
- the vehicle must not skid.

Activating while driving

When driving at speeds below 20 mph (30 km/h), you can only activate DISTRONIC PLUS if the vehicle in front has been detected and is shown in the multifunction display. If the vehicle in front is no longer detected and displayed, DISTRONIC PLUS switches off and a tone sounds.

– Briefly pull the cruise control lever towards you 4, or briefly press up 1 or down 2.
DISTRONIC PLUS is selected.
– Keep the cruise control lever pressed up 1 or down 2 until the desired speed is set.
– Remove your foot from the accelerator pedal.
Your vehicle adapts its speed to that of the vehicle in front, but only up to the desired stored speed.

If you do not fully release the accelerator pedal, the DISTRONIC PLUS Passive message appears in the multifunction display. The set distance to a slowermoving vehicle in front will then not be maintained. You will be driving at the speed you determine by the position of the accelerator pedal.

Activating when driving towards a stationary vehicle

If the vehicle in front of you is stationary, you can only activate DISTRONIC PLUS once your vehicle is stationary as well.

- Briefly pull the cruise control lever towards you 4, or briefly press up 1 or down 2.
DISTRONIC PLUS is selected.

DISTRONIC PLUS can only be activated at under 20 mph (30 km/h) if a vehicle in front has been detected. Therefore, the DISTRONIC PLUS distance display in the instrument cluster should be activated.

- Keep the cruise control lever pressed up 1 or down 2 until the desired speed is set.

You can use the cruise control lever to set the stored speed and the control on the cruise control lever to set the specified minimum distance.

Activating at the current speed/last stored speed

WARNING
The set speed stored in memory should only be set again if prevailing road conditions and legal speed limits permit. Possible acceleration or deceleration differences arising from returning to the preset speed could cause an accident and/or serious injury to you and others.

– Briefly pull the cruise control lever towards you 4.
– Remove your foot from the accelerator pedal.
DISTRONIC PLUS is activated. The first time it is activated, the current speed is stored. Otherwise, it sets the vehicle cruise speed to the previously stored value.

Display when DISTRONIC PLUS is activated

DISTRONIC PLUS displays in the speedometer

When DISTRONIC PLUS is activated, one or two segments 2 in the set speed range light up.

For design reasons, the speed displayed in the speedometer may differ slightly from the speed set for DISTRONIC PLUS.

If DISTRONIC PLUS detects a vehicle in front, segments 2 between speed of the vehicle in front 1 and stored speed 3 light up.

Distance display with DISTRONIC PLUS activated in the multifunction display

1 DISTRONIC PLUS activated
2 Own vehicle
3 Specified minimum distance to the vehicle in front; adjustable
4 Vehicle in front, if detected

You can select the distance display in the Assistance menu of the onboard computer.

- Select the Distance Display function using the on-board computer.

You will see the stored speed for about five seconds when you activate DISTRONIC PLUS.