2020 MERCEDES-BENZ GLS SUV Owners Manual

Overview of climate control sy
stems Note
s on climate control An interior air
filter in combination with the pre‐
fi lter in the engine compartment must alw ays be
used so that the air conditioning sy stem, pollu‐
tion le vel monitoring and the air filtration work
cor rectl y.Make sure that thefilter is ins talled
cor rectly and thefilter housing in the engine
compartment is closed cor rectly using the cap
and alw ays tightly sealed when in operation. Use
fi lters recommended and appr ovedby
Mercedes-Benz. Alw ays ha veservice workcar‐
ri ed out at a qualified specialist workshop. Overview of
the air conditioning control
panel The indicator lamps on
the buttons indicate that
th e cor responding function is activated. THERMATIC air conditioning contro
l panel withsta‐
tionary heater (e xamp le)
1 w Setsthete mp erature on the driver's
side
2 A Calls up / exits the air conditioning
menu
Pressing and holding (appr ox.fo ur seconds):
re sets climate contro lto the basic settings
3 H Setsthe air flow or switches off climate
control
4 Ã Sets climate control toautomatic
mode (/ page176)
5 ¬ Demists the windscreen 6
¤ Switches there ar wind owheater
on/off
7 g Switches air-recirculation mode on/off
(/ page 177)
8 Á Switches the A/C function on/off
(/ page 175)
Switches residual heat on/off (/ page177)
9 Vehicles with THERMATIC or
THERMOTRONIC contro l panel withoutsta‐
tionary heater: 0switches synchronisa‐
tion on/off (/ page177)
Ve hicles with THERMATIC or
THERMOTRONIC contro l panel withstation‐
ary heater: &switches stationary heater
on/off (/ page180)
A w Setsthete mp erature on the front
passenger side 174
Climate cont rol

Overview of
there ar operating unit 1
Sets thete mp erature, left
2 Sets the air distribution, left
3 Sets climate control toautomatic mode
(/ page 176)
4 Setting the air flow
5 Switches climate control on/off
(/ page 175)
Switches there sidual heat on/off
(/ page 178)
6 Sets the air distribution, right
7 Sets thete mp erature, right The settings
forth e second and third row of
seats (equipment-dependent) can be made via
th ere ar operating unit, the multimedia sy stem
(/ page 176) or the MBUX rear tablet depend‐
ing on theve hicle's equipment. Operating
the clima tecont rol sy stem Switching clima
tecont rol on/off #
Toswitch on: setthe air flow toleve l 1 or
higher using theH button. #
Toswitch off: setthe air flow toleve l 0 using
th eH button.
If climate control is switched off, the windo ws
may mist up more quickl y.Switch climate con‐
trol off only brie fly. Switching
the clima tecont rol in there ar
on/off #
Press button 5.
% When clima tecontrol in the second seat row
is switched off, the indicator lamp is activa‐
te d and OFFis shown on there ar displa y. Switching
the A/C function on/off using the
air conditioning control panel The A/C function heats, cools and dehumidi
fies
th eve hicle's interior air. #
Press theÁ button.
Switch off the A/C function only brief ly;ot her‐
wise, the windo wsmay mist up more quickl y.
Condensation may drip from the underside of
th eve hicle when cooling mode is active. This is
not indicative of a fault. Calling up
the air conditioning menu Calling up
the air conditioning menu using
th e multimedia sy stem #
Select one of thete mp erature displa ysatthe
lo we r edge of the media displa y.
Calling up the air-conditioning menu using
th e but ton on the clima tecont rol panel #
Press theA button on the climate control
panel. Climate control
175

Ac
tivating/deactivating the A/C function via
the multimedia sy stem The A/C function heats, cools and dehumidifies
th eve hicle's interior air. #
Call up the air-conditioning menu
(/ page 175). #
Select First row of seats .#
Select A/C. Setting climate control
toautomatic mode In auto
matic mode, the set temp erature is con‐
trolled and maintained at a const ant levelby the
air suppl y. #
Press theà button. #
Toswitch tomanual mode: pressthe Ã
button.
In automatic mode, you can choose between five
dif fere nt air quantities using theH button.
Au tomatic mode is retained. Au
tomatically controlling the climate control
in the rear In auto
matic mode, the set temp erature is regu‐
lated bythete mp erature of the dispensed air
and the air flow. #
Press theà button (/ page175). Setting
the air distribution #
Call up the air conditioning menu
(/ page 175). #
Select a rowof seats. #
Toset the air distribution: select¯,
P orO. #
Set the air flow.
% Several air distribution options can be selec‐
te d at the same time, forex ample toset the
climate control forth e windscreen and the
fo ot we lls simultaneousl y.
The ¯ climate contro lfo rth e windscreen
can only be selected forth efirs t seat row. Setting climate control
for the rear
passenger comp artment (multimedia sys‐
te m) Setting the
temperature #
Call up the air conditioning menu
(/ page 175). #
Select Second row of seats orThird row of
seats. #
For Maybach vehicles: select Second row of
seats.
% Maybach vehicles are fitted wi thone and
two rows of seats. #
Set thete mp erature.
Setting the airflow #
Call up the air conditioning menu
(/ page 175). #
Select Second row of seats orThird row of
seats. #
For Maybach vehicles: select Second row of
seats. 176
Climate cont rol

%
Maybach vehicles are fitted wi thone and
two rows of seats. #
Set the air flow.
Controlling there ar climate control automat‐
ical ly #
Select REAR AUTO .
Re ar climate control is controlled automati‐
call y.
Deactivating rear climate control #
Select REAR OFF.
Re ar climate control is deactivated. Ac
tivating/deactivating the climate control
syn chro nisation function via the air condi‐
tioning control panel Climate control can be set centrally using
the
synchronisation function. The temp erature and
air distribution setting forth e driver's side will be
adop ted automatically for all clima tecontrol
zones. #
Press the0 button. The synchronisation function will be deactivated
if th e settings for one of theot her climate zones
are changed. Ac
tivating/deactivating the climate control
syn chro nisation function via the multimedia
sy stem Climate control can be set centrally using
the
synchronisation function. The driver's settings
fo rte mp erature, air quantity and air distribution
are adop ted automatically for all clima tezones. #
Call up the air conditioning menu
(/ page 175). #
Select First row of seats . #
Select SYNC. Demisting the windo
ws Wi
ndo wsmis ted up on the inside #
Press theà button. #
Ifth e windo wscontinue tomist up: press the
¬ button. Wi
ndo wsmis ted up on the outside #
Switch on the windscreen wipers. #
Press theà button. Switching air-recirculation mode on/off
#
Press theg button.
The interior air will be recirculated.
Air-reci rculation mode automatically swit ches to
fresh air mode af ter some time.
% If air-recirculation mode is switched on, the
windo wsmay mist up more quickl y.Switch
on ai r-re circulation mode only brie fly. Switches
there sidual heat on/off Re
quirements:
R theve hicle is par ked.
It is possible tomake use of there sidual heat
from the engine tocontinue heating or ventilat‐
ing the front compartment of theve hicle for
appr oximately 30 minutes, depending on the
te mp erature set. Climate control
17 7

#
Toactivate: press button Á.
Re sidual heat will be switched off automaticall y.Switching
there sidual heat in there ar
on/off Re
quirements:
R The vehicle is par ked.
When there sidual heat of the engine is activated
in there ar compartment, you can heat or venti‐
la te there ar compartment for appro ximately
30 minutes. #
Press button 5(/ page 175). Ac
tivating/deactivating ionisation Ionisation impr
oves thequ ality of theve hicle's
interior air. Ionisation of the interior air is odour‐
less. #
Call up the air conditioning menu
(/ page 175). #
Select Air quality. #
Select IONISATION . Fr
ag rance sy stem Setting
the frag rance sy stem
Re quirements:
R Automatic clima tecontrol is acti vated.
R The glove box is closed.
The fragrance sy stem distributes a pleasant fra‐
grance thro ughout theve hicle interior from a fla‐
con located in theglov e box. #
Call up the climate control menu
(/ page 175). #
Select Air quality. #
Select AIR FRESHENER . #
Keep pressing until the desired intensity is
re ached. Inserting or
removing the flacon ofthe fra‐
gr ance sy stem &
WARNING Risk of inju ryfrom liquid per‐
fume
If ch ildren open theflacon, they could drink
th e liquid perfume or it could come into con‐
ta ct wi th theireyes. #
Do not lea vechildren unat tended in the
ve hicle. #
Consult a doctor immediately if liquid
perfume has been drunk. #
If liquid perfume comes into contact
with your eyes or skin, rinse your eyes
with clean water. #
If sym ptoms continue, consult a doctor. 17 8
Climate cont rol

+
ENVIRONMENTAL
NOTEEnvironmental
dama gedue toimproper disposal of full
fl acons Fu
llflacons must not be disposed
of with household waste. #
Fu
llflacons must be take nto
a harmful subs tance collection point. 1
Cap
2 Flacon #
Toinser t:slide theflacon into the holder as
fa r as it will go. #
Toremo ve:af te r opening theglov e box, wait
fo r appro ximately se ven seconds and pull out
th eflacon. If
yo u do not use genuine Mercedes-Benz interior
pe rfumes, obse rveth e manufacturers' saf ety
notices on the perfume pac kaging.
Dispose of thege nuine Mercedes-Benz interior
pe rfume flacon when it is em pty and do not refill
it.
Re fillable flacon #
Unscr ew the cap of the em ptyflacon. #
Filltheflacon with a maximum of 15ml. #
Screw the cap back on totheflacon.
Alw aysre fill th e em ptyre fillable flacon with the
same perfume. Obser vethe separate informa‐
tion sheet with theflacon. Information on
the windscreen heater The windscreen heater is swit
ched on automati‐
cally if the ¬ button is activated.
In addition, it is automatically switched on when
necessar y. Climate cont
rol17 9

St
ationary heater/ventilation St
ationary heater/ventilation function
R The air inside theve hicle is heated or ventila‐
te dto the set temp erature.
R The air inside theve hicle cannot be cooled
down to temperatures below the outside
te mp erature.
R Ifth e outside temp erature changes, ventila‐
tion mode au tomatical lyswitches toheating
mode or heating mode automatically
switches toventilation mode.
The stationary heater and theex haust gas outlet
are situated behind theright-hand front wheel.
Switching thest ationary heater/ventilation
on/off via the operating unit &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case in enclosed spaces or if
th eve hicle gets stuck in sn ow,fo rex ample. #
Alw ays switch thest ationary heater off
in enclosed spaces without an air
ex traction sy stems, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air. &
WARNING Risk offire due tohot station‐
ary heater components and exhaust
ga ses
Flammable materials such as lea ves, grass or
twigs may ignite. #
When thest ationary heater is swit ched
on, make sure that:
R hot vehicle parts do not come into
contact with flammable materials.
R theex haust gas can flow out of the
st ationary heater exhaust pipe
unhindered. R
theex haust gas does not come into
contact with flammable materials. *
NO
TEBattery discharge caused bysta‐
tionary heater or stationary ventilation
operation Ope
rating thest ationary heater or stationary
ve ntilation drains the batter y. #
After heating or ventilating theve hicle
twice, drive for a longer period of time. Re
quirements:
R The fuel tank is su fficiently full.
% Please no tethat if theta nk fill le vel is too
lo w, it can result in function restrictions dur‐
ing auxilia ryheating operation. #
Set the desired temp erature using thew
button. #
Press the& button.
The red or blue indicator lamp on the&
button will light up or go out. 18 0
Climate cont rol

Indicator lamp colours:
R Blue: stationary ventilation is switched on.
R Red:thest ationary heater is swit ched on.
R Yello w: the departure time has been prese‐
lected.
The stationary heater/ ventilation will switch off
au tomatically af ter 50 minutes.
Operation using the app: thest ationary
heater/ ventilation can also be operated via the
Mercedes me connect app. You can find fur ther
information in the separate Owner's Manual at
https://moba.i.daimler.com/mar kets/ece-r ow/
baix/cars/connectme/en_GB/#emotions/
St artseite.html.
Setting thest ationary heater/stationary ven‐
tilation via the multimedia sy stem #
Call up the air conditioning menu
(/ page 175). #
Select Auxiliary heating.
Selecting the departure time #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX. Setting
the departu retime #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX. #
Select the pen beside the time. #
Set a time.
Setting thest ationary heater/ventilation via
re mo tecont rol
Re quirements:
R The fuel tank is su fficiently full. Switching on immedia
tely #
Press and hold theu button.
Setting the departu retime #
Brie fly press theu button. #
Press the, or. button repeatedly
until the time tobe changed appears on the
displa y. Climate cont
rol181