See also:

Underinflated tires
WARNING   Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and ar ...

Important safety notes
WARNING For reasons of safety, have the NECK-PRO head restraints/NECK-PRO luxury head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. WARNING When p ...

Activating/deactivating
Turn the SmartKey to position 2 in the ignition lock. To switch on: press the button. The indicator lamp in the button lights up. Airflow and air distribution are set to automatic mode. or ...