See also:

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. ...

Storing the current speed or calling up a 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 r ...

Activating DISTRONIC PLUS
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 DIS ...