See also:

Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be starte ...

Switching the front climate control on/off using the front control panel
Turn the SmartKey to position 2 in the ignition lock. To activate: press the rocker switch up or down. The indicator lamp in the rocker switch goes out. The previously selected settings ...

Please bear the following in mind
Resetting the service interval display A qualified specialist workshop, e.g. an authorized Mercedes-Benz Center, will reset the service interval display after the necessary service work has been c ...