Cruise control* - deactivate
The cruise control (CC – Cruise Control) helps the driver to maintain an even speed. How it is deactivated is described here.
Steering wheel keypad and combined instrument panel.
Cruise control - On/Off. 
Standby mode ceases and the stored speed is resumed. 
Standby mode 
Activate and adjust the speed. 
Selected speed (GREY = Standby mode). 
Cruise control active - WHITE symbol (GREY = Standby mode).
The cruise control is deactivated with a steering wheel button (1) or by switching off the engine - the set speed is deleted from the memory and cannot be resumed with the 
button.