2016 MERCEDES-BENZ GL-Class cooling

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

QSwitches the rear climate control on/off (Ypage 152)
RReduces the airflow (Ypage 156)
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 the rear climate control on/off
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)
Overview of climate control systems151
Climate control

Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled 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 malfunc- tion.
Activating or deactivating
Example: ¿button
XTo activate: press the¿orÁ but-
ton.
The indicator lamp in the ¿orÁ
button lights up.
XTo deactivate: press the¿orÁ
button.
The indicator lamp in the ¿orÁ
button goes out. The "Cooling with air dehu-
midification" function has a delayed switch-
off feature.
Operating the climate control systems153
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in
the¿ orÁ but-
ton flashes three times
or remains off. The
"Cooling with air dehu-
midification" function
cannot be switched on.Cooling with air dehumidification has been deactivated due to a
malfunction.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If necessary, cooling with air dehu-
midification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the Ãbutton.
Automatic control
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated.
XTo switch to manual mode: press the
_ button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
3-zone automatic climate control: when
automatic mode is activated, you can select a
climate mode (
Ypage 155).
154Operating the climate control systems
Climate control

Switching the ZONE function on/off
XTo activate:press theábutton.
The indicator lamp above the ábutton
lights up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
3-zone automatic climate control: the tem- perature setting for the driver's side is not
adopted for the front-passenger side and
the rear compartment.
XTo deactivate: press theábutton.
The indicator lamp above the ábutton
goes out.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
3-zone automatic climate control: the tem- perature setting for the driver's side is
adopted for the front-passenger side and
the rear compartment.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to defrost the inside of the wind-
shield and the side windows.
Switch off the "Windshield defrosting" func-
tion as soon as the windshield is clear again.
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
XTo activate: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and
front side windows
Rair-recirculation mode off
XTo deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
XPress the Ãbutton.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
or
XTurn control :orB counter-clockwise or
clockwise:
Dual-zone automatic climate control
(
Ypage 145)
3-zone automatic climate control
(
Ypage 148)
or
XPress the KorI button.
MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
Operating the climate control systems157
Climate control

MAX COOL is only operational when the
engine is running.
XTo activate:press theÙbutton.
The indicator lamp in the Ùbutton lights
up.
XTo deactivate: press theÙbutton.
The indicator lamp in the Ùbutton goes
out. The previously selected settings are
restored.
When you activate MAX COOL, climate con-
trol switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on the inside
XActivate the ¿orÁ cooling with air
dehumidification function.
XActivate automatic mode Ã.
XIf the windows continue to fog up, activate
the "windshield defrosting" function
(
Ypage 157).
iYou should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XPress the _button repeatedly until the
P orO symbol appears in the dis-
play.
iYou should only select this setting until
the windshield is clear again.
Rear window defroster
General notes
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off auto-
matically after several minutes.
If the battery voltage is too low, the rear win-
dow defroster may switch off.
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
XPress the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
158Operating the climate control systems
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 165).
XTo activate: press thedbutton.
The indicator lamp in the dbutton lights
up.
iIn the event of high pollution levels (3-
zone automatic climate control only) or at
high outside temperatures, air-recircula-
tion mode is automatically activated. When air-recirculation mode is activated auto-
matically, the indicator lamp in the
d
button is not lit.
Outside air is added after about
30 minutes.
XTo deactivate: press thedbutton.
The indicator lamp in the dbutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at out-
side temperatures below approximately
41 ‡ (5 †)
Rafter approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
Rafter approximately 30 minutes at out-
side temperatures above approximately
41 ‡ (5 †) if the "Cooling with air dehu-
midification" function is activated
Switching the residual heat on or off
General notes
The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the set interior temperature.
Operating the climate control systems159
Climate control

Setting the side air vents
:Side window defroster vent
;Side air vent
=Thumbwheel for side air vent
XTo open or close:turn thumbwheel=up
or down.
Setting the glove box air vent
!
Close the air vent when heating the vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu- midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
box could be damaged.
:Air vent control
;Air vent
When the climate control system is activated,
the glove box can be ventilated, for instance
to cool its contents. The level of airflow
depends on the airflow and air distribution
settings.
XTo open or close: turn thumbwheel:to
the right or left.
Setting the rear-compartment air
vents
Setting the center vents in the rear com-
partment
Example: center vents with rear control panel
:
Rear-compartment air vent thumbwheel
;Rear-compartment air vent, right
=Rear control panel
?Rear-compartment air vent, left
XTo open or close: turn thumbwheel:up
or down.
Setting the B-pillar air vent
Second row of seats
:B-pillar air vent
;Thumbwheel for B-pillar air vent
XTo open or close: turn thumbwheel;to
the left or right.
Setting the air vents161
Climate control
Z