See also:

Setting the airflow
Turn the SmartKey to position 2 in the ignition lock. To increase/reduce: press the or button. ...

Storing and maintaining the current speed
You can store the current speed if you are driving faster than 20 mph (30 km/h). Accelerate the vehicle to the desired speed. Briefly press the cruise control lever up 1 or down 2. Remove ...

Notes on technical data
The data stated here specifically refers to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...