Mercedes-Benz GLK Owners Manual

See also:

Left control panel
...

Activating/deactivating
WARNING Any accumulation of snow and ice should be removed from the rear window before driving. Visibility could otherwise be impaired, endangering you and others. The rear window defroster h ...

Important safety notes
WARNING In order to help prevent spilling liquids on vehicle occupants and/or vehicle equipment, only use containers that fit into the cup holder. Use lids on open containers and do not fill ...