2016 MERCEDES-BENZ GL-Class Owner's Manual

Useful information............................144
Overview of climate control sys-
tems ................................................... 144
Operating the climate control sys-
tems ................................................... 152
Setting the air vents .........................160
143
Climate control

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 29).
Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only
briefly
Rswitch on the cooling with air dehumidifi-
cation function
Rswitch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (
Ypage 159).
iVentilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (
Ypage 99).
This will speed up the cooling process and
the desired interior temperature will be
reached more quickly.
iThe integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
iIt is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry the automatic climate control. The vehicle
is then ventilated for 30 minutes.
144Overview of climate control systems
Climate control

Control panel for dual-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 155)
;Defrosts the windshield (Ypage 157)
=Switches the maximum cooling MAX COOL on or off (Ypage 157)
?Switches cooling with air dehumidification on/off (Ypage 153)
ASwitches the rear window defroster on/off (Ypage 158)
BSets the temperature, right (Ypage 155)
CSwitches air-recirculation mode on/off (Ypage 159)
DSets the air distribution (Ypage 156)
EIncreases the airflow (Ypage 156)
FReduces the airflow (Ypage 156)
GActivates/deactivates the air conditioning (Ypage 152)
HSets climate control to automatic (Ypage 154)
Overview of climate control systems145
Climate control

Canada only
Front control panel
:Sets the temperature, left (Ypage 155)
;Defrosts the windshield (Ypage 157)
=Switches the ZONE function on/off (Ypage 157)
?Switches cooling with air dehumidification on/off (Ypage 153)
Switches the residual heat on or off (
Ypage 159)
ASwitches the rear window defroster on/off (Ypage 158)
BSets the temperature, right (Ypage 155)
CSwitches air-recirculation mode on/off (Ypage 159)
DSets the air distribution (Ypage 156)
EIncreases the airflow (Ypage 156)
FReduces the airflow (Ypage 156)
GActivates/deactivates the air conditioning (Ypage 152)
HSets climate control to automatic (Ypage 154)
Rear control panel
:Sets rear-compartment climate control to automatic
;Switches the rear climate control on/off
146Overview of climate control systems
Climate control

=Directs the airflow through the rear air vents
?Directs the airflow through the footwell vents
Optimum use of dual-zone climate
control
The following contains notes and recommen-
dations on optimum use of dual-zone climate
control.
RYou can switch on climate control by using
theà and¿ orà andÁ but-
tons. The indicator lamps in the Ãand
¿ buttons or the ÃandÁ but-
tons light up.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
RUse the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp above the ábutton goes
out.
RVehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for approx-
imately three seconds at the bottom of the
screen in the COMAND display (see sepa-
rate operating instructions). You will see
the current settings of the various climate
control functions.
During automa tic e
ngine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (
Ypage 170).
Overview of climatecont rol systems147
Climate control

Control panel for 3-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 155)
;Defrosts the windshield (Ypage 157)
=Switches the maximum cooling MAX COOL on or off (Ypage 157)
?Switches cooling with air dehumidification on/off (Ypage 153)
ASwitches the rear window defroster on/off (Ypage 158)
BSets the temperature, right (Ypage 155)
CSwitches the ZONE function on/off (Ypage 157)
DActivates/deactivates the air conditioning (Ypage 152)
ESets the air distribution (Ypage 156)
FIncreases the airflow (Ypage 156)
GReduces the airflow (Ypage 156)
HDisplay
IAdjusts the climate mode settings (Ypage 155)
JSwitches air-recirculation mode on/off (Ypage 159)
KSets climate control to automatic (Ypage 154)
Rear control panel
LIncreases the airflow (Ypage 156)
MSets the temperature (Ypage 155)
NSets rear-compartment climate control to automatic (Ypage 154)
ODirects the airflow through the rear air vents (Ypage 156)
PDirects the airflow through the footwell vents (Ypage 156)
QSwitches the rear climate control on/off (Ypage 152)
RReduces the airflow (Ypage 156)
148Overview of climate control systems
Climate control

Canada only
Front control panel
:Sets the temperature, left (Ypage 155)
;Defrosts the windshield (Ypage 157)
=Switches the residual heat on or off (Ypage 159)
?Switches cooling with air dehumidification on/off (Ypage 153)
ASwitches the rear window defroster on/off (Ypage 158)
BSets the temperature, right (Ypage 155)
CSwitches the ZONE function on/off (Ypage 157)
DActivates/deactivates the air conditioning (Ypage 152)
ESets the air distribution (Ypage 156)
FIncreases the airflow (Ypage 156)
GReduces the airflow (Ypage 156)
HDisplay
IAdjusts the climate mode settings (Ypage 155)
JSwitches air-recirculation mode on/off (Ypage 159)
KSets climate control to automatic (Ypage 154)
Rear control panel
LIncreases the airflow (Ypage 156)
MSets the temperature (Ypage 155)
NSets rear-compartment climate control to automatic (Ypage 154)
ODirects the airflow through the rear air vents (Ypage 156)
PDirects the airflow through the footwell vents (Ypage 156)
QSwitches the rear climate control on/off (Ypage 152)
RReduces the airflow (Ypage 156)
Overview of climate control systems149
Climate control

Control panel for 3-zone automatic climate control with additional rear-com-
partment climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 155)
;Defrosts the windshield (Ypage 157)
=Switches the maximum cooling MAX COOL on or off (Ypage 157)
?Switches cooling with air dehumidification on/off (Ypage 153)
Switches the residual heat on or off (
Ypage 159)
ASwitches the rear window defroster on/off (Ypage 158)
BSets the temperature, right (Ypage 155)
CSwitches the ZONE function on/off (Ypage 157)
DSwitches the rear climate control on/off (Ypage 152)
ESets the air distribution (Ypage 156)
FIncreases the airflow (Ypage 156)
GReduces the airflow (Ypage 156)
Switches off climate control
HDisplay
IAdjusts the climate mode settings (Ypage 155)
JSwitches air-recirculation mode on/off (Ypage 159)
KSets climate control to automatic (Ypage 154)
Rear control panel
LIncreases the airflow (Ypage 156)
MSets the temperature (Ypage 155)
NSets rear-compartment climate control to automatic (Ypage 154)
ODirects the airflow through the rear air vents (Ypage 156)
PDirects the airflow through the footwell vents (Ypage 156)
150Overview of climate control systems
Climate control