See also:

Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key. - Open the driver's door. - Close the front-passenger door, the rear doors and the tailgate. - Press the lockin ...

EBD (electronic brake forcedistribution)
Observe the "Important safety notes" section. EBD monitors and controls the brake pressure on the rear wheels to improve driving stability while braking. WARNING   If EBD ...

Setting the temperature in the rear compartment 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 ...