See also:

Safety
Dual-stage front airbags and door-mounted side-impact airbags for the front and rear seats are standard. Optional curtain-type airbags deploy from above the side windows. With Mercedes’ BabySmart ...

Setting the rear-compartment airflow using the front control panel
Turn the SmartKey to position 2 in the ignition lock. Activate the rear compartment function via COMAND. The rear-compartment climate control can be controlled via the front control panel ...

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. ...