Mercedes-Benz 2014 GLK Class - Manual (Page 136)

and dehumidified according to the
temperature selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
Activating/deactivating
X To activate: press the ¿ button.
The indicator lamp in the ¿ button lights
up.
i When the "Cooling with air
dehumidification" function is activated,
one of the indicator lamps on the auxiliary
heating button will light up on vehicles with
auxiliary heating.
X To deactivate: press the ¿ button.
The indicator lamp in the ¿ button goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.
134
Operating the climate control systems
Climate control