MERCEDES-BENZ GLE SUV 2017 W166 Owner's Manual

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise 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 dehumidifica-
tion 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.
The "Cooling with air dehumidification" function
is only available when the engine is running.
Optimum climate control is only achieved with
the side windows and roof closed.
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 128).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 86).
This will speed up the cooling process and the desired interior temperature will be reached
more quickly. If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 134).
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
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 Book- let.
iVehicles with AIR-BALANCE package: in
addition to ionization, the vehicle has an air
filter with anti-allergenic properties that con-
tribute to improved air filtration.
iIt is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
matic climate control. The vehicle is then ven-
tilated for 30 minutes.
iHybrid vehicles: observe the information
on climate control in the separate operating
instructions.
Overview of climate control systems119
Climate control

Control panel for dual-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 125)
;Defrosts the windshield (Ypage 126)
=Switches the maximum cooling MAX COOL on or off (Ypage 127)
?Switches cooling with air dehumidification on/off (Ypage 124)
ASwitches the rear window defroster on/off (Ypage 127)
BSets the temperature, right (Ypage 125)
CSwitches air-recirculation mode on/off (Ypage 128)
DSets the air distribution (Ypage 126)
EIncreases the airflow (Ypage 126)
FReduces the airflow (Ypage 126)
GActivates/deactivates climate control (Ypage 124)
HSets climate control to automatic (Ypage 125)
120Overview of climate control systems
Climate control

Canada only
Front control panel
:Sets the temperature, left (Ypage 125)
;Defrosts the windshield (Ypage 126)
=Switches the ZONE function on/off (Ypage 126)
?Switches cooling with air dehumidification on/off (Ypage 124)
Switches the residual heat on or off (
Ypage 128)
ASwitches the rear window defroster on/off (Ypage 127)
BSets the temperature, right (Ypage 125)
CSwitches air-recirculation mode on/off (Ypage 128)
DSets the air distribution (Ypage 126)
EIncreases the airflow (Ypage 126)
FReduces the airflow (Ypage 126)
GActivates/deactivates climate control (Ypage 124)
HSets climate control to automatic (Ypage 125)
Rear control panel
:Sets rear-compartment climate control to automatic
;Switches the rear climate control on/off
=Directs the air distribution through the rear air vents
?Switches the seat heating on the right-hand side on/off
Overview of climate control systems121
Climate control

ADirects the air distribution through the footwell vents
BSwitches the seat heating on the left-hand side on/off
Control panel for 3-zone automatic climate control
USA only
Front control panel
:Sets the temperature, left (Ypage 125)
;Defrosts the windshield (Ypage 126)
=Switches the maximum cooling MAX COOL on or off (Ypage 127)
?Switches cooling with air dehumidification on/off (Ypage 124)
ASwitches the rear window defroster on/off (Ypage 127)
BSets the temperature, right (Ypage 125)
CSwitches the ZONE function on/off (Ypage 126)
DActivates/deactivates climate control (Ypage 124)
ESets the air distribution (Ypage 126)
FIncreases the airflow (Ypage 126)
GReduces the airflow (Ypage 126)
HDisplay
IAdjusts the climate mode settings (Ypage 125)
JSwitches air-recirculation mode on/off (Ypage 128)
KSets climate control to automatic (Ypage 125)
Rear control panel
LIncreases the airflow (Ypage 126)
MSets the temperature (Ypage 125)
NSets rear-compartment climate control to automatic (Ypage 125)
ODirects the airflow through the rear air vents (Ypage 126)
PSwitches the seat heating on the right-hand side on/off (Ypage 98)
QDirects the airflow through the footwell vents (Ypage 126)
RSwitches the rear climate control on/off (Ypage 124)
122Overview of climatecont rol systems
Climate control

SReduces theairflow (Ypage 126)
TSwitches th eseat heating on th eleft-han dside on/off (Ypage 98)
Canadaonly
Front control panel
:Sets th etemperature, lef t (Ypage 125)
;Defroststh ewindshield (Ypage 126)
=Switches th eresidual heat on or off (Ypage 128)
?Switches coolingwit hair dehumidification on/off (Ypage 124)
ASwitches therear window defroste ron/off (Ypage 127)
BSets thetemperature, right (Ypage 125)
CSwitches theZON Efunction on/off (Ypage 126)
DActivates/deactivates climat econtrol (Ypage 124)
ESets theair distribution (Ypage 126)
FIncreasesth eairflow (Ypage 126)
GReduces th eairflow (Ypage 126)
HDisplay
IAdjusts th eclimat emod esetting s (Ypage 125)
JSwitches air-recirculation mod eon/off (Ypage 128)
KSets climat econtrol to automatic (Ypage 125)
Rea rcontrol panel
LIncrease sth eairflow (Ypage 126)
MSets thetemperature (Ypage 125)
NSets rear-compartmen tclimat econtrol to automatic (Ypage 125)
ODirects theairflow throug hth erear air vents (Ypage 126)
PSwitches theseat heating on th eright-hand side on/off (Ypage 98)
QDirects th eairflow throug hth efootwell vents (Ypage 126)
RSwitches therear climat econtrol on/off (Ypage 124)
SReduces theairflow (Ypage 126)
TSwitches th eseat heating on th eleft-han dside on/off (Ypage 98)
Overview of climate control systems123
Climate control

Optimum use of automatic climate
control
Optimum use of the automatic climate
control
The following contains notes and recommenda-
tions on optimum use of the dual-zone or 3-zone
automatic climate control.
RYou can switch on climate control by using the
à and¿ orà andÁ buttons.
The indicator lamps in the Ãand
¿ buttons or the ÃandÁ buttons
light up.
RVehicles with 3-zone climate control: in
automatic mode, you can also use the
ñ button to set a climate mode (FOCUS/
MEDIUM/DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
ROnly use the "Windshield defrosting" function
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 otherwise fog up,
since no fresh air is drawn into the vehicle in
air-recirculation mode.
RVehicles with 3-zone climate control: use
the ZONE function to adopt the temperature
settings on the driver's side for the front-
passenger side and the rear compartment as
well. The indicator lamp above the ábut-
ton goes out.
RVehicles with 3-zone climate control: use
the "residual heat" function if you want to heat
or ventilate the vehicle interior when the igni-
tion is switched off. The residual heat function
can only be activated or deactivated with the
ignition switched off.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 137).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
Activate climate control primarily using the
à button (
Ypage 125).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XTo switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
Activating/deactivating
XTo activate: press the¿orÁ button.
The indicator lamp in the ¿orÁ button
lights up.
XTo deactivate: press the¿orÁ but-
ton.
The indicator lamp in the ¿orÁ button
goes out. The "Cooling with air dehumidifica-
tion" function has a delayed switch-off fea-
ture.
124Operating the climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿orÁ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on.Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
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 ignition
lock (Ypage 132).
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.
3-zone automatic climate control: when auto-
matic mode is activated, you can select a cli-
mate mode (
Ypage 125).
Adjusting the climate mode settings
You can select the following climate mode set-
tings in automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draft- free setting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XPress the Ãbutton.
XPress the ñbutton repeatedly until the
desired climate mode appears in the display.
Setting the temperature
Dual-zone automatic climate control
Different temperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XTo increase or decrease: turn control:or
B counter-clockwise or clockwise
(
Ypage 120).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
3-zone automatic climate control
You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XTo increase or decrease temperature in
the front compartment: turn control:or
B counter-clockwise or clockwise
(
Ypage 122).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the front con-
trol panel:press the ábutton.
The indicator lamp in the ábutton goes
out.
Operating the climate control systems125
Climate control

The temperature setting for the driver's side
is adopted for the rear compartment and the
front-passenger side.
XTurn thumbwheel:to the left or right
(Ypage 122).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
XTo increase or decrease the rear compart- ment temperature using the rear control
panel: turn control Mcounter-clockwise or
clockwise on the rear control panel
(
Ypage 122).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air distribution settings
Front control panel
P Directs the airflow through the center
vents
O Directs air through the footwell air vents
S Directs the airflow through the center
and footwell vents
¯ Directs air through the defroster vents
b Directs the airflow through the defroster
and center vents (Canada only)
a Directs air through the defroster and
footwell vents
_ Directs the airflow through the defroster,
center and footwell air vents (Canada
only)
Rear control panel
M Directs the airflow through the rear cen-
ter and B-pillar air vents
O Directs air through the footwell air vents
iUsing the rear control panel, you can also
activate both air distribution positions simul-
taneously. In order to do this, press both air
distribution buttons. The air is then routed
through all rear air vents.
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
Adjusting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XPress the _button repeatedly until the
desired symbol appears in the display.
Setting the airflow
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
XTo increase: press theKbutton.
XTo reduce: press theIbutton.
iYou can use 3-zone automatic climate con-
trol to set the airflow in the rear compartment
separately.
Switching the ZONE function on/off
XTo activate: press theábutton.
The indicator lamp above the ábutton
lights up.
Dual-zone automatic climate control: the tem-
perature 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 tem-
perature setting for the driver's side is adop-
ted for the front-passenger side.
3-zone automatic climate control: the tem-
perature setting for the driver's side is adop-
ted 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 clear a fogged up windshield or front
side windows on the inside.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
126Operating the climate control systems
Climate control

Activating/deactivating
XTurn theSmartKey to position 2in th eignition
loc k (Ypage 132).
XTo activate: press the¬ button.
The indicator lamp in th e¬ buttonlights
up.
The climat econtrol system switches to th e
followin gsettings:
Rhigh airflow
Rhigh temperature
Rair distribution to th ewindshield and fron t
side windows
Rair-recirculation mod eoff
XTo deactivate: press the¬ button.
The indicator lamp in th e¬ buttongoe s
out .The previously selected setting sare
restored .Air-recirculation mod eremain s
deactivated.
MAX COOL maximum cooling
The MA XCOOL function is only available in vehi-
cle sfor th eUSA.
MA XCOOL is only operational when th eengin e
is running.
XTo activate: press theÙ button.
The indicator lamp in th eÙ buttonlights
up.
XTo deactivate: press theÙ button.
The indicator lamp in th eÙ buttongoe s
out .The previously selected setting sare
restored .
When you activat eMA XCOOL ,climat econtrol
switches to th efollowin gfunctions:
Rmaximum coolin g
Rmaximum airflow
Rair-recirculation mod eon
Defrosting the windows
Windows fogged up onthe inside
XActivat eth e¿ orÁ coolin gwit hair
dehumidification function .
XActivateautomatic mod eÃ.
XIf th ewindows continu eto fog up, activat eth e
"windshield defrosting "function
(
Ypage 126).
iYou should only select this setting until th e
windshield is clear again .
Windows fogged uponthe outside
XActivat eth ewindshield wipers.
XPress th e_ buttonrepeatedly until th e
P orO symbol appear sin th edisplay.
iYou should only select this setting until th e
windshield is clear again .
iIf you clean thewindows regularly, they do
no tfog up so quickly.
Rear window defros ter
Gene ral notes
The rear window defroste rhas ahigh curren t
draw .You should therefor eswitch it off as soo n
as th erear window is clear. Otherwise ,th erear
window defroste rswitches off automatically
after several minutes.
If th ebattery voltag eis to olow, th erear window
defroste rmay switch off .
Switching on/off
XTurn theSmartKey to position 2in th eignition
loc k (Ypage 132).
XPress th e¤ button.
The indicator lamp in th e¤ buttonlights
up or goe sout .
Operating the climate control systems127
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 vehicle will
then be recirculated.
If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Switching on/off
XTurn the SmartKey to position 2in the ignition
lock (Ypage 132).
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 out-
side temperatures, air-recirculation mode is
automatically activated. When air-recircula-
tion mode is activated automatically, the indi-
cator lamp in the dbutton 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 outside
temperatures below approximately 41 ‡
(5 †)
Rafter approximately five minutes if cooling
with air dehumidification is deactivated
Rafter approximately 30 minutes at outside
temperatures above approximately 41 ‡ (5 †) if the "Cooling with air dehumidifi-
cation" 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 stationary
vehicle for up to 30 minutesafter the engine has
been switched off. The heating time depends on
the set interior temperature.
Switching on/off
XTo activate: press theÌorÁ button.
The indicator lamp in the ÌorÁ button
lights up.
iThe blower will run at a low speed regardless
of the airflow setting.
iIf you activate the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
XTo deactivate: press theÌorÁ but-
ton.
The indicator lamp in the ÌorÁ button
goes out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Ionization
Ionization is used to purify the air in the vehicle
interior and attain an improved interior climate.
128Operating the climate control systems
Climate control