MERCEDES-BENZ GLS SUV 2020 Owners Manual

%
The duration until the colour changes varies
depending on the usage conditions. Re
placing the windsc reen wiper blades
(MAGIC VISION CONT ROL) Moving
the wiper arms into there placement
position #
Switch the ignition off. #
Within around 15seconds, press theî
button on the combination switch
(/ page 165).
The wiper arms will mo veinto there place‐
ment position. Re
moving the wiper blades #
Tobring the wiper blade into position to
be remo ved: hold the wiper arm firm ly in
one hand. With th eot her hand, turn the
wiper blade in the direction of ar row1
be yond the point of resis tance.
The wiper blade will engage in there mo val
position with a clic k. #
Toremo vethe wiper blade: pressrelease
knob 2, pull the wiper blade in the direction
of ar row3and remo ve.
Fi tting the wiper blades #
Push the new wiper blade onto the wiper arm
in the direction of ar row1until release
knob 2engages. 16 8
Light and sight

#
Press the wiper blade onto the wiper arm in
th e direction of ar row3beyond the point of
re sis tance.
The wiper blade will engage wi tha noticeable
click and mo vefreely again. #
Foldthe wiper arm back onto the wind‐
screen. Re
placing the rear window wiper blade &
WARNING Risk of becoming trapped if
th e windscreen wipers are switched on
while wiper blades are being replaced
If th e windscreen wipers begin tomo vewhile
yo u are changing the wiper blades, you can
be trapped bythe wiper arm. #
Alw ays switch off the windscreen wip‐
ers and ignition before changing the
wiper blades. Re
moving the wiper blade #
switch the ignition off. #
Fold wiper arm 2away from there ar win‐
dow until it engages in there placement posi‐
tion. #
Unclip wiper blade 1from wiper arm 2
and remo veit in the direction of ar row 3. Fi
tting the wiper blade #
Position wiper blade 1with bo thlugs 3on
holder 2onthe wiper arm. #
Push wiper blade 1inthe direction of ar row
4 until it en gage s in holder 2. #
Make sure that wiper blade 1is seated cor‐
re ctly. Light and sight
16 9

#
Foldthe wiper arm from there placement
position back onto there ar wind ow. Mir
rors Operating
the outside mir rors &
WARNING Risk of accident due to
adjusting vehicle settings while theve hi‐
cle is in motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R Ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion.
R Ifyo ufast enyour seat belt while theve hi‐
cle is in motion. #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel and the mir ror and fas‐
te nyo ur seat belt. &
WARNING Risk of accident due tomis‐
judgement of dis tance when using the
outside mir ror
The outside mir rors reflect objects on a
smaller scale. The objects in view are in fact
closer than they appear. #
Therefore, alw ays look over your shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u. Fo
lding the outside mir rors in/out #
Brief lypress button 2.
% Ifth e battery has been disconnected or has
dischar ged, the outside mir rors must be
mo ved briefly using button 2. Onlythen will
th e automatic mir rorfo lding function work
proper ly. 17 0
Light and sight

%
Mercedes-Maybach vehicles: when the out‐
side mir rors fold in, theex tendable running
boards will retract if they wereprev iously
ex tended.
Ad justing the outside mir rors #
Press button 1or3 toselect the outside
mir rorto be adjus ted. #
Use button 4toadjust the position of the
mir rorgl ass.
Engaging the outside mir rors
If an outside mir ror has been forc ibly disen‐
ga ge d, proceed as follo ws. #
Vehicles without electrically folding outside
mir rors: manually mo vethe outside mir ror
into the cor rect position. #
Vehicles with electrically folding outside mir‐
ro rs: press and hold button 2.
Yo u will hear a click and the mir ror will audi‐
bly click into place. The outside mir ror will
now be set tothe cor rect position. Au
tomatic anti-dazzle mir rors function &
WARNING Risk of acid bu rns and poi‐
soning due tothe anti-dazzle mir ror elec‐
trolyte
Electrolyte may escape if theglass in an
automatic anti-dazzle mir ror breaks.
The electrolyte is hazardous tohealth and
causes ir rita tion. It mu stnot come into con‐
ta ct wi thyour skin, eyes,respiratory or gans
or clo thing or be swallo wed. #
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Immediately rinse the electrolyte
from your skin with water and seek
medical attention.
R If electrolyte comes into contact
with your eyes, immediately rinse
th em thoroughly with clean water
and seek medical attention.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughl y.Do not induce vomiting.
Seek medical attention immediately. R
Immedia tely ch ange out of clo thing
which has been con taminated with
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side will automatically go into
anti-dazzle mode if light from a headlamp hits
th e sensor on the inside rearview mir ror.
Sy stem limits
The sy stem will not go into anti-dazzle mode if:
R the engine is switched off.
R reve rsege ar is engaged.
R the interior lighting is switched on. Fr
ont-passenger outside mir ror parking posi‐
tion function %
The pa rking position is available on ly invehi‐
cles with a memory function.
The parking position makes parking easier. Light and sight
171

In
thefo llowing situations, the front-passen ger
outside mir ror will swivel down wards in the
direction of there ar wheel on the front passeng‐
er's side:
R the parking position is stored (/ page172)
R The fron t-passenger mi rror is selected
R Reversege ar is engaged.
The front-passenger outside mir ror will mo ve
back toits original position in thefo llowing sit‐
uations:
R You shift the transmission toano ther trans‐
mission position
R You are tr avelling at speeds greater than
15 km/h
R You press the button forth e outside mir ror
on the driver's side St
oring and calling up the pa rking position of
th e front-passenger outside mir ror Sto
ring #
Select the front-passen ger outside mir ror
using but ton1. #
Engage reve rsege ar. #
Movethe front-passen ger outside mir ror into
th e desired parking position using button 2.Calling up #
Select the front-passen ger outside mir ror
using but ton1. #
Engage reve rsege ar.
The front-passenger outside mir ror will mo ve
to thestored parking position. Ac
tivating/deactivating the automatic mir ror
fo lding function Multimedia sy
stem:
4 © 5
Settings 5
Vehicle #
Switch Automatic fold-in on or off.17 2
Light and sight

Area permeable
to radiowav es on the
windscreen Ra
dio-contro lled equipment, such as toll sys‐
te ms, can be mounted only on areas 1ofthe
windscreen that are permeable toradio wav es.
Areas permeable toradio wav es1 are best visi‐
ble from outside theve hicle when the wind‐
screen is illuminated with an extern al light
source.
No tethis position forve hicles with:
R Windsc reen heating
R Infra redre flective windscreen Infrared-reflective windscreen function
The infra red-reflective windscreen is coated and
re duces the build-up of heat in theve hicle inte‐
ri or.
The coating shields theve hicle interior from
ra dio waves. Light and sight
17 3

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