See also:

Setting the rear-compartment airflow using the rear control panel
Turn the SmartKey to position 2 in the ignition lock. To increase/reduce: press rocker switch 14 up or down. ...

Setting a speed
WARNING Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments. Increase or decrease the set vehicle speed to a value that the prevailing road condi ...

2009 Mercedes-Benz GL-Class Review
With a 23-mpg diesel version now available in all 50 states, the Mercedes-Benz GL-Class is a more viable option for SUV-needing families — though the appeal of a $60,000-plus four-wheeler seems li ...