Cruise control and the speed limiter are both controlled via a single button on the steering wheel: the Driver Assistance button. Next to it are a rocker switch (up/down) and a separate cancel switch.
Activating cruise control
Drive at your desired speed (minimum approximately 30 km/h) and briefly press the Driver Assistance button. The car will now maintain that speed.
Adjusting speed: tap the rocker switch up or down for 1 km/h at a time, or hold it for steps of 10 km/h.
Temporarily accelerating: press the accelerator. Release to return to the set speed.
Deactivating cruise control: press the Driver Assistance button again, or apply the brakes.
Activating the speed limiter
Drive at your desired speed and hold the Driver Assistance button. Adjust the limit using the rocker switch up or down.
Deactivating the speed limiter
Briefly press the Driver Assistance button.