See also:

Before changing a fuse
  Park the vehicle and apply the parking brake.   Switch off all electrical consumers.   Remove the SmartKey from the ignition lock. The fuses are located in various fuse boxes: ...

Defrosting the windshield
You can use this function to defrost the windshield or to defrost the inside of the windshield and the side windows. You should only select the defrosting function until the windshield is clear ...

Problems with the seat ventilation
The seat ventilation has switched off prematurely or cannot be switched on. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. •► ...