2022 MERCEDES-BENZ GLS SUV Owners Manual

Deactivating rear climate control

Select REAR OFF.
R
ear climate control is deactivated. Switching the synchronisation function
on/oM via
t
he air conditioning control panel Climate control can be set centrally using the syn-
c

hronisation function. The temperature and air
distribution setting for the driver's side will be
adopted automatically for all climate control
zones. 
Press the  butt
on.
The synchronisation function will be deactivated if
t
he settings for one of the other climate zones are
changed. Switching the synchronisation function
on/oM via
t
he multimedia system Multimedia system:
4 Climate menu 5
First row of seats
Climat

e control can be set centrally using the syn-
chronisation function. The driver's settings for temperature, air quantity and air distribution will
be adop

ted automatically for all climate zones. 
Select SYNC and switc
h on or oM. Demisting the windows
Windows misted up on the inside

Press the X butt
on. 
If the windows remain misted up: press
t

he d button.
Windows misted up on the outside 
Switch on the windscreen wipers. 
Press the X butt
on. Switching air-recirculation mode
on/oM 
Press the r butt
on.
The interior air will be recirculated.
Air-recirculation mode automatically switches to
fr
esh air mode aser a while. %
If air-recirculation mode is switched on, the
windo

ws may mist up more quickly. Switch on
air-recirculation mode only brieOy. Switches the residual heat
on/oM Requirements:
= t

he vehicle is parked.
It is possible to make use of the residual heat
from the engine to continue heating or ventilating
the front compartment of the vehicle for approx-
imately 30 minutes, depending on the tempera-
ture set. 
To activate: pr
ess button V .
Residual heat will be switched oM aut
omatically. Switching the residual heat in the rear
on/oM Requirements:
= The v

ehicle is parked.
When the residual heat of the engine is activated
in the rear compartment, you can heat or ventilate 182
Climate control

the rear compartment for approximately
30 minut
es. 
Press button 5 (  pag
e 180).Activating/deactivating ionisation
Multimedia system:
4 Climate menu 5
Air quality
Ionisation im

proves the quality of the vehicle's
interior air. Ionisation of the interior air is odour-
less. 
Select IONISATION and activ
ate or deactivate
the function. Fragrance system
Setting the fragrance system
R

equirements:
= Automatic climate control is activated.
= The glove compartment is closed. Multimedia system:
4 Climate menu 5
Air quality
The fr

agrance system distributes a pleasant fra-
grance throughout the vehicle interior from a Oa-
con located in the glove box. 
Select AIR FRESHENER . 
Keep pressing until the desired intensity is
r

eached.
Inserting or removing the Oacon of t
he fragrance
system &
WARNING Risk of injur
y from liquid per-
fume
If children open the Oacon, t
hey could drink
the liquid perfume or it could come into con-
tact with their eyes. 
Do not leave children unattended in the
v

ehicle. 
Consult a doctor immediately if liquid
per

fume has been drunk. 
If liquid perfume comes into contact with
y

our eyes or skin, rinse your eyes with
clean water. 
If symptoms continue, consult a doctor. +
ENVIRONMENTAL NOTE
En
vironmental
damage due to improper disposal of full
Oacons Full Oacons
mus
t not be disposed of
with household waste. 
Full
Oacons mus
t be taken to a
harmful substance collection point. Climate control
183

1
Cap
2 Flacon 
To insert: slide t he Oacon into the holder as far
as it will go. 
To remove: aser opening t
he glove box, wait
for approximately seven seconds and pull out
the Oacon. If you do not use genuine Mercedes-Benz interior
per
fumes, observe the manufacturers' safety noti-
ces on the perfume packaging.
Dispose of the genuine Mercedes-Benz interior
perfume Oacon when it is empty and do not reNll
it.
ReNllable Oacon 
Unscrew the cap of the empty Oacon. 
Fill the Oacon wit
h a maximum of 15 ml. 
Screw the cap back onto the Oacon.
Always r
eNll the empty reNllable Oacon with the
same perfume. Observe the separate information
sheet with the Oacon. Information on the windscreen heater
The windscreen heater is switched on automati-
call

y if the d button is activated.
In addition, it is automatically switched on when
necessary. Stationary heater/ventilation
Stationary heater/ventilation function
%
The following function is equipment-depend-
ent.
= The air inside t
he vehicle is heated or ventila-
ted to the set temperature.
= The air inside the vehicle cannot be cooled
down to temperatures below the outside tem-
perature.
= If the outside temperature changes, ventilation
mode will automatically switch to heating
mode or heating mode will automatically
switch to ventilation mode.
The stationary heater and the exhaust gas outlet
are situated behind the right front wheel.
Switching the stationary heater/ventilation on/oM
via the operating unit &
DANGER Risk of f
atal injury due to poison-
ous exhaust gases
If the tailpipe is blocked or suPcient v
entila-
tion is not possible, poisonous exhaust gases 184
Climate control

such as carbon monoxide may enter the vehi-
cle. This is t he case in enclosed spaces or if
the vehicle gets stuck in snow, for example. 
Always switch the stationary heater oM in
enclosed spaces wit
hout an air extrac-
tion system, e.g. in garages. 
Keep the tailpipe and the area around
t

he vehicle free from snow when the
engine or the stationary heater is run-
ning. 
Open a window on the side of the vehicle
f

acing away from the wind to ensure an
adequate supply of fresh air. &
WARNING Risk of Nr
e due to hot station-
ary heater components and exhaust gases
Flammable materials such as leaves, grass or
twigs ma
y ignite. 
When the stationary heater is switched
on, mak

e sure that:
= hot vehicle parts do not come into
contact with Oammable materials. =
t
he exhaust gas can Oow out of the
stationary heater exhaust pipe unhin-
dered.
= the exhaust gas does not come into
contact with Oammable materials. *
NOTE Batt
ery discharge caused by sta-
tionary heater or stationary ventilation
operation Operating the stationary heater or stationary
v

entilation drains the battery. 
Aser heating or v
entilating the vehicle
twice, drive for a longer period of time. Requirements:
= The fuel t

ank is suPciently full.
% Please note that if the tank Nll le
vel is too low,
it can result in function restrictions during
auxiliary heating operation. 
Set the desired temperature using the

Setting the stationary heater/ventilation via the
multimedia sy
stem
Multimedia system:
4 Climate menu 5
Auxiliary heating 
Call up the air conditioning menu
( pag
e 180). 
Select Auxiliary heating .
Selecting the departure time 
Select the time TIME A
XX, TIME B XX or
TIME C XX.
Setting the departure time 
Select the time TIME A
XX, TIME B XX or
TIME C XX. 
Select the pen beside the time. 
Set a time.
Setting the stationary heater/ventilation via
r
emote control
Requirements: = The fuel tank is suPciently full. Switching on immediately

Press and hold the

Switching oM
immediat ely
Press and hold the x butt
on.
Overview of the remote control displays (station-
ar
y heater/ventilation) 1
Stationary ventilation switched on
2 Stationary heater switched on
3 Selected departure time
4 Remaining time for the stationary heater/
v

entilation (in minutes)
5 Stationary heater/ventilation active
6 Departure time activated
7 Signal strength Further possible displays:
= T

ime: the activated departure time.
= Zero minutes: the running time for the station-
ary heater is extended because the engine has
not yet reached operating temperature when it
is started.
= OFF: the stationary heater/ventilation is
switched oM.
Replacing the remote control battery (stationary
heater) &
DANGER Risk of f
atal injuries if batteries
are swallowed
Batteries contain toxic and corrosive substan-
ces. Sw
allowing batteries may cause severe
internal burns within two hours.
There is a risk of fatal injury. 
Keep batteries out of the reach of chil-
dr

en. 
If the cover and/or lid of the battery
com

partment does not close securely, do not use the key and keep it away from
c

hildren. 
If batteries are swallowed, seek medical
att

ention immediately. +
ENVIRONMENTAL NOTE
En
vironmental
damage due to improper disposal of bat-
teries Batteries contain toxic and corro-
siv

e substances. 
Take discharged batteries to a
q

ualiNed specialist workshop or to a col-
lection point for used batteries. Requirements:
= One CR2450 lit

hium battery Climate control
187

Mercedes-Benz recommends that you have the
batt
ery replaced at a qualiNed specialist work-
shop. 
Push a pointed object into recess 1.
Slide battery cover 2 bac
kwards in the direc-
tion of the arrow and remove the empty bat-
tery. 
Insert new battery 3 wit
h the lettering facing
upwards. 
Slide battery cover 2 in t
he opposite direc-
tion to the arrow onto the remote control until
the battery cover engages. Problems with the remote control for the station-
ar

y heater/ventilation
FAIL

=
Op timum climate comfort is achieved with the
air vents in the centre position. 
To open or close centre air vents: tur
n control-
ler 2 up or down as far as it will go. 
To open or close side air vents: tur
n control-
ler 2 to the les or right as far as it will go. 
To adjust the air direction: hold air v
ent 1 in
the centre and move it up or down or to the
les or right. Adjusting the rear air vents
Air vents in the centre console
Air vents in the B-pillar Climate control
189