2021 MERCEDES-BENZ GLS SUV sunroof

#
Immediately aTer automatic reve rsing, pull
and hold the3 button down again tothe
point of resis tance until the sliding sunroof is
closed.
The sliding sunroof will be closed with
increased forc e.
If th e sliding sunroof is obstructed again and
opens again slightl y:#
Repeat the pr evious step.
The sliding sunroof will be closed again with
increased forc e.
V
V ehicles wit ehicles wit hout a panor
hout a panor ama sliding sunr
ama sliding sunr oof: t
oof: the
he
sliding sunr
sliding sunr oof is no
oof is not oper
t operating smoot
ating smoot hly
hly.
. #
Reset the sliding sunroof.
R
R ese
ese tting t
tting t he sliding sunr
he sliding sunr oof
oof#
Push the3 button up tothe point of resist-
ance repeatedly until the sliding sunroof is
fully open. #
Press the3 button for ano ther second. #
Close the sliding sunroof. V
V
ehicles wit
ehicles wit h a panor
h a panorama sliding sunr
ama sliding sunr oof: t
oof: the slid-
he slid-
ing sunr
ing sunr oof or t
oof or the r
he roller sunblind is no
oller sunblind is no t oper
t operating
ating
smoot
smoot hly
hly.
. #
Reset the sliding sunroof and thero ller sun-
blind.
R
R ese
ese tting t
tting t he sliding sunr
he sliding sunr oof and t
oof and the r
he roller sun-
oller sun-
blind
blind #
Pull and hold the3 button little bylittle
until the sliding sunroof is fully closed. #
Pull and hold the3 button little bylittle
until thero ller sunblind is fully closed. #
Use automatic operation tofully open and
th en close the sliding sunroof. R
R
oller sunblinds
oller sunblinds Ext
Ext
ending or re
ending or retr
tracting t
acting t he r
he roller sunblinds on t
oller sunblinds on t he
he
r
r ear side windo ws
ear side windo ws &
W
WARNI NG
ARNI NGRisk of becoming trapped when
ex tending or retracting thero ller sunblind
Body parts could become trapped in the
sweep of thero ller sunblind when it is being
ex tended or retracted. #
Make sure that no body parts are in the
sweep of thero ller sunblind when it is
being extended or retracted. #
If someone becomes trapped, brie0y
press the button in the opposite direc-
tion.
The opening or closing process will
brie0y be stopped. The roller sunblind
will then return toits starting position. *
N NOOTE
TE Damage caused byobjects Objects can cause
thero ller sunblind tomal-
function. 104
104
Opening and closing

Pr
Pr
iming/deactiv
iming/deactiv atingtow
ating tow-awa
-a wa y pr ot
y pr otection
ection Multimedia system:
4 © 5
Settings 5
Quick access #
Prime or deactivate Tow-away protection.
To w- awa y protection is primed again in thefo llo w-
ing cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again.
% Ifqu ick access is una vailable, select theVehi-
cle submenu in theSettings main menu to
prime or deactivate tow- awa y protection. F
F
unction of int
unction of int er
erior pr ot
ior pr otection
ection When interior pr
otection is primed, a visual and
audible alarm is triggered if mo vement is de tected
in theve hicle interior.
Interior pr otection is primed automatically aTer
appr oximately ten seconds:
R aTer locking theve hicle with thekey
R aTer locking theve hicle using KEYLESS-GO Interior pr
otection is only primed when thefo llo w-
ing components are closed:
R doors
R tailgate
Interior pr otection is automatically deactivated:
R aTer pressing theÜ orp button on the
key
R aTer pressing the start/s top button with the
ke y in the st owage compartment
(/ page 192)
R aTer unlocking theve hicle using KEYLESS-GO
R when using HANDS-FREE ACCESS
The following situations can lead toafa lse alarm:
R when there are moving objects such as mas-
cots in theve hicle interior
R when a side wind owis open
R when a sliding sunroof is open
R when a panoramic sliding sunroof is open Pr
Pr
iming/deactiv
iming/deactiv ating int
ating int er
erior prot
ior prot ection
ection Multimedia system:
4 © 5
Settings 5
Quick access #
Prime or deactivate Interior motion sensor.
Interior pr otection is primed again in thefo llowing
cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again.
% Ifqu ick access is una vailable, select theVehi-
cle menu under Settingstoprime or deacti-
va te interior pr otection. Opening and closing
107 107

#
Turn the emer gency key a quarter turn cloc k-
wise 2(to lock) or anti-clockwise 1(to
unlock). A
A
tt
tt ac
ac hing a r
hing a r oof lugg
oof lugg ag
age r
e r ack
ack &
W
WARNING
ARNING Risk of accident due toexceed-
ing the maximum roof load
The vehicle cent reofgrav ity and the usual
driving characteristics as well as the steering
and braking characteristics alter.
If yo uex ceed the maximum roof load, the driv-
ing characteristics, as well as steering and
braking, will be greatly impaired. #
Neverex ceed the maximum roof load
and adjust your driving style. Yo
u will /nd information on the maximum roof
load in the "Technical data" section.
* N
NO OTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. *
N NOOTE
TE Vehicle damage from non-appr oved
ro of luggage racks The
vehicle could be damaged byroof luggage
ra ck sth at ha venot been tested and appro ved
fo r Mercedes-Benz. #
Use only roof luggage rack ste sted and
appro vedfo r Mercedes-Benz. #
Depending on theve hicle equipment,
ensu rethat the sliding sunroof can be
fully raised when thero of luggage rack is
/t ted. #
Depending on theve hicle equipment,
ensu rethat theta ilgate can be fully Seats and st
owing
149
149

opened when
thero of luggage rack is /t-
te d. #
Position the load on thero of luggage
ra ck in such a wayth at theve hicle will
not sus tain damage even when it is in
motion. *
N
NOOTE
TE Damage tothe panorama sliding
sunroof due tonon-appro vedro of luggage
ra cks The panorama sliding sunroof may be dam-
aged bythero of luggage rack ifyo u attem ptto
open it when using a roof luggage rack not
te sted and appro vedfo r Mercedes-Benz. #
When a roof luggage rack is /t ted, open
th e panorama sliding sunroof only if this
has been tested and appro vedfor
Mercedes-Benz.
The pano rama sliding sunroof may be raised
to allow ventilation of theve hicle interior. No
tes on driving with a roof load
R Evenly dist ribute thero of load, and place
heavy objects at the bottom. Also comply with
th e no tes on loading theve hicle
(/ page 135).
R Drive attentivel y,and avoid suddenly pulling
awa y,braking and steering as well as rapid
cornering.
R When transporting roof loads and when the
ve hicle is fully loaded or fully occupied, select
drive prog rams ; andA. These are
designed tofocus on stability (/ page 205). #
Secu rethero of luggage rack tothero of rail-
ing. #
Obser vethe manufacturer's installation
inst ructions. Cup holders
Cup holders
Switc
Switc
hing t
hing t he cooling or heating function f
he cooling or heating function f or t
or the
he
t
t em
em per
per atur
atur e-contr
e-contr olled cup holder on or
olled cup holder on or o.
o. &
W
WARNING
ARNING Risk of injury bytouching the
heating elements
The cup holder's heating elements may be
ve ry hot.
Yo u can burn yourself on them. #
Do not touch the cup holder's hot heat-
ing elements. #
Ensure that no children can access the
cup holder's hot heating elements. #
Never lea vechildren unattended in the
ve hicle. *
N NOOTE
TE Damage toobjects in thete mp era-
ture-controlled cupholder If
yo u place objects into thete mp erature-con-
trolled cup holder, they may become dam-
aged. 150
150
Seats and st
owing

R
It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
S
S t
tar
ar ting t
ting t he v
he vehicle (R
ehicle (R emot
emot e Online)
e Online) &
W
WARNING
ARNING Risk of crushing or entrapment
due tounintentional starting of the engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during service
or maintenance work. #
Always secure the engine against unin-
te ntional starting before ca rrying out
main tenance or repair work. R
R
eq
eq uir
uir ements:
ements:
R Park position jis selected.
R The anti-theT alarm system is not activated.
R The hazard warning light system is switched
o..
R The bonnet is closed.
R The doors are closed and loc ked.
R The windo wsand sliding sunroof are closed. #
Start theve hicle using the smartphone.
ATer every engine start, the engine runs for
te n minutes.
Yo u can car ryout a maximum of two consecutive
starting attem pts. You must start the engine with
th eke y before trying tostart theve hicle again
with the smartphone.
Yo u can switch o. theve hicle at any time as fol-
lo ws:
R Viath e Smartphone App
R By pressing theÜ orß button on the
key
% Further information can be found in the
smartphone app.
Secur
Secur ing t
ing the v
he vehicle ag
ehicle ag ains
ainst st
t star
arting bef
ting bef or
ore car ry-
e car ry-
ing out maint
ing out maint enance or r
enance or repair w
epair wor
ork:
k: #
Switch on the hazard warning light system.
or #
Unlock the doors.
or #
Open a side window or the sliding sunroof. R
R
unning-in not
unning-in not es
es To
preser vethe engine during the /rst 1,500 km:
R Drive at varying road speeds and engine
speeds.
R Do not drive at speeds greater than
140 km/h.
R Drive theve hicle in drive prog ram A
or ;.
R ShiT tothe next highest gear at theve ry latest
when the needle reaches the last third before
th ere d area in there v counter.
R Do not shiT down manual lyin order tobrake.
R Avoid overstraining theve hicle, e.g. driving at
full thro ttle.
R do not depress the accelerator pedal past the
pressure point (kickdown).
R Only increase the engine speed gradually and
accelerate theve hicle tofull speed aTer
1,500 km.
This also applies when the engine or parts of the
driv etra in ha vebeen replaced. Driving and parking
193
193

#
Bring theve hicle toa standstill bypressing the
brake pedal. #
Ongradients, turn the front wheels so that the
ve hicle will rollto wa rdsth eke rb if it starts
moving. #
Apply the electric parking brake. #
Engage transmission position jin a station-
ary vehicle with the brake pedal applied
(/ page 210). #
Switch o. theve hicle bypressing the1 but-
to n. #
Release the service brake slo wly. #
Get out of theve hicle and lock it.
% When you park theve hicle, you can still oper-
ate the side windo wsand the sliding sunroof
fo r appr oximately four minutes if the driver's
door is closed.
% When you park theve hicle, you can still oper-
ate the side windo wsand the panoramic slid-
ing sunroof for appr oximately four minutes if
th e driver's door is closed. Gar
Gar
ag
age door opener
e door opener Pr
Pr
ogr
ogr amming butt
amming butt ons f
ons for t
or the g
he g ar
arag
ag e door opener
e door opener &
D
DAN
AN GER
GER Risk of fatal injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of injury bybecoming
trapped when opening and closing a
ga rage door
When you operate or prog ram a garage door
with an integ ratedga rage door opener, per-
sons can become trapped or struck bythe
ga rage door if they stand wi thin its range of
mo vement. Driving and parking
223 223

#
Ensure there is su1cient ground clear-
ance between the underbody and the
guide rails of the car wash. #
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is su1cient. To
avo id damage toyour vehicle when using a car
wa sh, ensu rethefo llowing beforehand:
R Active Distance Assist DISTRONIC is deactiva-
te d.
R The HOLD function is switched o..
R The 360° Camera or there ve rsing camera is
switched o..
R The side windo wsand sliding sunroof are com-
ple tely closed.
R The outside mir rors are folded in.
R The blo werfo rth eve ntilation/heating is
switched o..
R The windsc reen wiper switch is in position g.
R The key is at a minimum dis tance of 3 m away
from theve hicle. Otherwise theta ilgate could
open unintentionall y. R
In automatic car washes with con veyo r sys-
te ms:
- Neutral iis engaged.
- Ifyo uwo uld like tolea vetheve hicle while
it is being washed, make sure theke y is
located in theve hicle. The park position
j isotherwise automatically engaged.
% Toprev ent damage tothe tyres and wheels,
drive straight and in tothe centre of the guide
ra ils of the car wash.
% If, aTer the car wash, youre mo vethewax
from the windscreen and wiper rubbers, this
will pr event smearing and reduce wiper noise.
A A ut ut omatic car w
omatic car w ash mode
ash mode
In car wash mode, theve hicle is prepared for driv-
ing into the automatic car wash. Car wash mode
can be activated at a speed of up to20 km/h
Ac tivate (/ page 373).
The following settings are made when car wash
mode is activated:
R The outside mir rors are folded in. R
Topreve ntthe windscreen washer system
from starting up automaticall y,thera in sensor
is deactivated.
R The rear wind owwiper is deacti vated.
R The windo wsand the sliding sunroof are
closed.
R Mer
Mer cedes-Ma
cedes-Ma ybac
ybach v
h vehicles:
ehicles: theru nning
boa rds are retracted.
R The air conditioning system is set toair-recir-
culation mode.
R Parking Assist PARKTRONIC is deactivated.
R V
Vehicles wit
ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
activated aTer appr ox. eight seconds.
R V
Vehicles wit
ehicles wit h AIRMA
h AIRMATIC:
TIC:theve hicle is raised
to the maximum possible chassis
le ve l(/ page 269).
If rising take s lon gerth an 25 seconds, thefo l-
lowing message appears onthe multifunction
displa y:
Preparation for car wash incomplete See
media display . ATer some time, theve hicle
automatically continues rising. 372 372
Main
tenance and ca re

R
V
Vehicles wit
ehicles wit h E-A
h E-ACTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL:
OL:the
ve hicle is raised tothe maximum possible
ch assis le vel(/ page 277).
If rising take s lon gerth an 25 seconds, thefo l-
lowing message appears onthe multifunction
display:
Preparation for car wash incomplete See
media display . ATer some time, theve hicle
automatically continues rising.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
Ab ove a speed of 20 km/h Car wash mode is
automatically deacti vated.
The following settings are reset when car wash
mode is deacti vated:
R The outside mir rors are folded out.
R The rain sensor is activated.
R The rear wind owwiper is activated.
R The air conditioning system is set tofresh air
mode. R
Parking Assist PARKTRONIC is reset tothe
pr ev iously selected setting.
R The windo wsand the sliding sunroof remain
closed.
R Mer
Mer cedes-Ma cedes-Ma ybac
ybach v
h vehicles:
ehicles: theru nning
boa rdsre main retracted.
R V
Vehicles wit
ehicles wit h 360° Camer
h 360° Camer a:
a:the front image is
deactivated at speeds abo ve18 km/h.
R V
Vehicles wit
ehicles wit h AIRMA
h AIRMATIC:
TIC:theve hicle is lo wered
to the pr eviously set chassis le vel.
R V
Vehicles wit
ehicles wit h E-A
h E-ACTIVE BOD
CTIVE BOD Y C
Y CONTR
ONTR OL:
OL:the
ve hicle is lo weredto the pr eviously set chassis
le ve l. A
A ctiv
ctiv ating/deactiv
ating/deactiv ating aut
ating automatic car w
omatic car w ash mode
ash mode R
R eq
eq uir
uir ements:
ements:
R theve hicle is stationar y.
R the engine is running. Multimedia system:
4 © 5
Settings 5
Quick access
A
A ctiv
ctiv ating aut
ating aut omatic car w
omatic car w ash mode
ash mode #
Select Car wash mode . #
Select Start.
If one of the settings cannot be selected, this is
displa yedby a% behind there specti veset-
ting.
% For an overview of the settings made when
activating automatic car wash mode
(/ page 371).
Deactiv
Deactiv ating aut ating aut omatic car w
omatic car w ash mode
ash mode #
Select Stop.
The automatic car wash settings are reset.
% The automatic car wash mode is automatically
deacti vated as soon as a speed of 20 km/h is
ex ceeded. Main
tenance and ca re
373
373