See also:

Vehicle data, GL 450
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Automatic climate control panel
Front control panel 1 Sets climate control to automatic mode, left 2 Sets the temperature, left 3 Sets the airflow, left 4 Defrosts the windshield 5 Activates/deactivates air-recirculation ...

Windshield washer system and headlamp cleaning system
The washer fluid reservoir is used for both the windshield washer system and the headlamp cleaning system. Vehicle components and their service products must match. You should, therefore, ...