See also:

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

Increasing or decreasing vehicle speed
Specify desired speed in the range from approx. 4 mph/6 km/h to approx. 15 mph/25 km/h using the rocker switch of the cruise control on the steering wheel. Vehicle speed can be changed by light ...

Activating ECO PRO
Press button repeatedly until ECO PRO is displayed in the instrument cluster. ...