2021 MERCEDES-BENZ GLS SUV fuel

Interior lighting ............................................ 167
Wi
ndsc reen wipers and windscreen
wa sher system ............................................ 168
Mir rors ........................................................ 173
Area permeable toradio waves on the
windscreen ................................................ .176
Inf rare d-re0ective windscreen function ........ 177 Climat Climat
e contr
e contr ol
ol........................................... 178 178
Overview of climate control systems ............ 178
Operating the climate control system .......... 179 Dr
Dr
iving and par
iving and par king
king..................................... 190 190
Driving ........................................................1 90
DY NAMIC SELECT switch ........................... .205
Au tomatic transmission .............................. .209
Tr ansfer case ............................................. .213
Fu nction of the 4MATIC ...............................2 15
Re fuelling .................................................... 216
Pa rking .......................................................2 22
Driving and driving saf ety sy stems ............... 229
Tr ailer hitch ................................................ .299
Bicycle rack function ................................... 304
Ve hicle towing instructions .......................... 306 Ins
Ins
tr
trument displa
ument displa y and on-boar
y and on-boar d com-
d com-
put
put er
er........................................................... 308 308
No tes on the inst rument display and on-
board computer .......................................... 308
Overview of instrument display .................... 309
Overview of the buttons on the steering
wheel .......................................................... 310
Operating the on-board computer ................3 10
Overview of displa ysinthe inst rument
display ........................................................ 312
Head-up display .......................................... 312 MBUX multimedia syst MBUX multimedia syst
em
em........................... .315
315
Overview and operation ............................... 315
System settings .......................................... 324
Na vigation .................................................. .328
Te lephone ................................................... 337
Mercedes me app ....................................... 340
Mercedes-Benz emer gency call system ....... 349
Ra dio, media & TV....................................... 356
Sound settings ............................................ 362 Maint Maint
enance and car
enance and car e
e................................. 364 364
ASS YST PLUS service inter val display .......... 364 Engine compartment ................................... 365
Cleaning and care ....................................... 371 Br Br
eakdo
eakdo wn assist
wn assist ance
ance................................. 380 380
Emer gency .................................................. 380
Flat tyre ...................................................... 382
Battery (vehicle) .......................................... 387
To w- starting or towing away ........................ 393
Electrical fuses ............................................ 397 Wheels and tyr Wheels and tyr
es
es......................................... 400 400
No tes on noise or unusual handling char-
acteristics ................................................... 400
No tes on regula rly inspecting wheels and
tyres .......................................................... .400
No tes on snow chains ................................. 400
Ty re pressure .............................................. 401
Wheel change ............................................. 404
Emer gency spa rewheel .............................. .414
Collapsible spare wheel ............................... 416 T
T
ec
ec hnical dat
hnical dat a
a............................................. 420 420
No tes on tech nical data .............................. 420 Contents
3
3

1
#! Turn signal lights →
162
2 ï Trailer hitch →
506
3 6 Restraint system →
505
4 å ESP®
OFF →
515
÷ ESP®
→
515
5 R Rear fog light →
161
6 K High beam →
162
L Low beam →
160
T Standing lights →
160
7 ÿ Coolant temp erature →
508
8 Coolant temp erature display →
309
9 ! Electric parking brake (yellow) →
511
A J Brakes (yellow) →
511
B L Distance warning →
513 C
# Electrical fault →
508
D Ù Powe r steering →
506
E ! ABS →
515
F h Tyre pressure monitoring system →
517
G % Diesel engine: preglow
H 8 Reser vefuel wi thfuel /ller 0ap location
indicator →
508
I Fuel le vel →
309
J ! Electric parking brake (red) →
511
K J Brakes (red) →
511
L ü Seat belt →
505
M ; Engine diagnostics →
508
N ä Suspension (red) →
513
ä Suspension (yellow) →
513 At
a glance – Indicator and warning lamps
11
11

1
B-pillar wi th:
QR code for accessing there scue card →
38
2 Safetyve sts →
380
3 Fire extinguisher →
381
4 ; me button →
340
G SOS button →
340
5 £ Hazard warning light system →
162
6 Tocheck and top up operating 0uids →
425
St arting assis tance →
391
7 Tow- starting or towing away →
394 8
Flat tyre →
382
9 Tow- starting or towing away →
394
A Fuel /ller 0ap with:
information label on fuel type →
216
information label on tyre pressure →
402
QR code for accessing there scue card →
38
B Warning triangle →
380
C TIREFIT kit →
384
D Firs t-aid kit (soT sided) →
381 At
a glance – Emer gencies and breakdowns
19
19

Pr
ot
Pr otection of t
ection of t he en
he envir
vironment
onment
+ ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TE Environmental
damage due tooperating conditions and
personal driving st yleThe pollutant emission of
theve hicle is
directly related tothewa yyo u operate the
ve hicle.
Operate your vehicle in an environmentally
re sponsible manner tohelp pr otect the envi-
ro nment. Please obser vethefo llowing recom-
mendations on operating conditions and per-
sonal driving st yle.
Oper
Oper ating conditions:
ating conditions: #
Make sure that the tyre pressure is cor-
re ct. #
Do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no lon-
ge r need them). #
Adhere tothe service inter vals.
A regula rly serviced vehicle will cont rib-
ute toenvironmental pr otection. #
Always ha vemaintenance workcar ried
out at a quali/ed specialist workshop.
P
P er
er sonal dr
sonal dr iving s
iving stytyle:
le: #
Do not depress the accelerator pedal
when starting the engine. #
Do not warm uptheve hicle while sta-
tionar y. #
Drive carefully and maintain a suitable
distance from theve hicle in front. #
Avoid frequent, sudden acceleration and
braking. #
Change gear in good time and use each
ge ar only up toÔ of its maximum
engine speed. #
Switch o. theve hicle in stationary traf-
fi c, e.g. byusing the ECO start/s top
function. #
Drive in a fuel-e1cient manner. Obse rve
th e ECO display for an economical driv-
ing style. T T
ak
ak e-bac
e-bac k of end-of-lif
k of end-of-lif e v
e vehicles
ehicles
EU countr
EU countr ies only:
ies onl y:
Mercedes-Benz will take back your end-of-life
ve hicle for environment-fri endly disposal in
accordance with the European Union (EU) End-of-
Life Vehicles Directi ve.
A network of vehicle take -back points and dis-
mantlers has been established foryo uto return
yo ur vehicle. You can lea veit at any of these
points free of charge . This makes an impor tant
cont ribution toclosing there cycling circle and
conserving resources.
Fo r fur ther information about there cycling and
disposal of end-of-life vehicles, and theta ke -back
conditions, please visit the national
Mercedes-Benz website foryo ur countr y. 22
22
General no
tes

R
transmission aerials
R multimedia system and sound system
If yo u ha veany queries or suggestions, consult a
qu ali/ed specialist workshop. Im
Im
plied w
plied w arr
arranty
anty
* NO
NO TE
TEDamage totheve hicle arising from
violation of these operating inst ructions. Damage
totheve hicle can arise from violation
of these operating inst ructions.
This damage is not co vered either bythe
Mercedes-Benz implied warranty or bythe
Ne w‑ or Used- Vehicle Warrant y. #
Follow the inst ructions in these operat-
ing inst ructions on proper operation of
yo ur vehicle as well as on possible vehi-
cle damage. QR code f
QR code f
or r
or rescue card
escue card
QR codes are attached in the fuel /ller 0ap and on
th e opposite side on the B-pillar. In theev ent of
an accident, rescue services can use the QR code
to quickly /nd the appropriate rescue card for
yo ur vehicle. The cur rent rescue card contains the
most impor tant information about your vehicle in
a compact form , e.g. thero uting of the electric
lines.
Fu rther information can be obtained at https://
www.mercedes-benz.de/qr-code. Dat Dat
a st
a st or
orage
age Dat
Dat
a pr
a pr ocessing in t
ocessing in t he v
he vehicle
ehicle Electr
Electr
onic contr
onic contr ol units
ol units
Elect ronic cont rol units are /t tedinyour vehicle.
Control units process data which, forex ample,
th ey receive from vehicle senso rs,ge nerate them-
sel ves or exch ange between themsel ves. Some
cont rol units are requ ired forth e safe operation of
yo ur vehicle, some assist you when driving, such
as driver assistance systems, while others enable
con venience or inf otainment functions. The
following pr ovides you with general informa-
tion rega rding data processing in theve hicle.
Ad ditional information rega rding exactly which
data in your vehicle are collected, sa ved and
transmitted tothird parties, and for what purpose,
can be found in the information directly related to
th e functional characteristics in question in their
re specti veoperating instructions. This information
is also available online and, depending on the
ve hicle equipment, digitall y.
P
P er
er sonal data
sonal data
Every vehicle is identi/ed bya uni queve hicle
identi/cation number. Depending on the countr y,
th is vehicle identi/cation number can be used by,
fo rex ample, go vernmental authorities todeter-
mine the identity of theow ner. There are other
possibilities touse data collected from theve hicle
to identify theow ner or driver, such as the licence
plate number.
Therefore, data generated or processed bycont rol
units may be attributable toa person or, under
cer tain conditions, become attributable toa per-
son. Depending on which vehicle data are availa-
ble, it may be possible tomake inferences about, 38 38
General no
tes

See Owner's Manual(/
page 443) display mes-
sage appears. A
A
ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident
Depending on the type and se verity of the acci-
dent, and depending on theve hicle's equipment,
th efo llowing measures can be implemented, for
ex ample:
R automatic braking (post-collision brake)
R activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 351)
R switching o. the engine
To start theve hicle again, switch theve hicle
o. and on once more (/ page 191). Depend-
ing on the type and se verity of the accident,
yo u may no longer be able tostart theve hicle.
R switching o. the fuel supply
R unlocking theve hicle doors
R lowe ring the side windo ws
R displaying the emer gency guide in the multi-
media system display R
switching on the interior lighting
F
F unction of t
unction of t he pos
he post-collision brt-collision br ake
ake
Depending on the accident situation, the post-col-
lision brake can minimise the se verity of a fur ther
collision or evenavo id it.
If an accident is de tected, the post-collision brake
can implement automatic braking. When theve hi-
cle has come toa standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking bytaking
th efo llowing actions:
R braking more strongly than automatic braking
R fully depressing the accelerator pedal with
fo rce Saf Saf
el
ely try tr anspor
anspor ting c
ting childr
hildren in t
en in t he v
he vehicle
ehicle Alw
ay
Alw ays observ
s observ e when c
e when c hildr
hildren ar
en ar e trav
e tr avelling in t
elling in t he
he
v
v ehicle
ehicle %
Also strictly obser vethe saf ety no tesfo rthe
speci/c situation. In this wa yyo u can recog-
nise po tential risks and avoid dangers if chil- dren are tr
avelling in theve hicle
(/ page 58).
Be dilig
Be dilig ent
ent
Bear in mind that negligence when securing a
ch ild in thech ild restraint system ma y haveseri-
ous conse quences. Alw ays be dili gent in securing
a ch ild carefully before every journe y.
Ne ver allow babies and children totrave l sitting
on the lap of ano ther vehicle occupant.
To impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obser vethefo l-
lowing information:
R Always secure thech ild in a child restraint sys-
te m suitable forth is Mercedes-Benz vehicle.
R The child restraint system must be appropria te
to the age, weight and size of thech ild.
R The vehicle seat must be suitable for /tting a
ch ild restraint system (/ page 62).
Ac cident statistics show that children secured on
th ere ar seats are generally sa ferth an children
secured on the front seats. Forth is reason, Occupant saf
ety
57 57

K
K
e
ey
y Ov
Ov
er
ervie
vie w of ke
w of key functions
y functions &
W
W ARNING
ARNING Risk of accident and inju rydue
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
N
NOOTE
TE Damage totheke y caused bymag-
netic /elds #
Keep theke yaw ay from strong magnetic
/elds. Ve
hicle key
1 Locks
2 Indicator lamp 3
Unloc ks
4 Opens/closes theta ilgate
% If indicator lamp 2does not light up aTer
pressing theÜ orß button, the battery
is we ak or possibly dischar ged. Re place the
battery as soon as possible.
Re place theke y battery (/ page 83).
The key loc ksand unloc ksthefo llowing compo-
nents:
R Doors
R Fuel /ller 0ap
R Tailgate
If th eve hicle is not opened within appr oximately
40 seconds aTer unlocking, it loc ksagain. Anti-
th eT pr otection is primed again.
Do not keep theke yto get her with elect ronic devi-
ces or me tal objects. This can a.ect theke y's
functionalit y.
Do not keep theke y in thete mp erature-controlled
cup holder. Otherwise, theke y will not be reliably
de tected. Opening and closing
81 81

A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the acous
he acous tic loc
tic locking
kingv
ver
er i/-
i/-
cation
cation signal
signal Multimedia system:
4 © 5
Settings 5
Vehicle #
Activate or deactivate Acoustic lock.
% Please observ
Please observ e:
e:
The selected setting forth e acoustic locking
ve ri/cation signal must comply with there le-
va nt national road and tra1c regulations. In
some countries, including German y,using the
acoustic locking veri/cation signal is forbid-
den bytra1c la ws(in accordance with §16
Pa ra. 1 and §30 Para. 1 of the German
national road tra1c regulations). The driver of
th eve hicle must comply with these regula-
tions. In countries where the use of this func-
tion is forbidden, this function is not activated
in theve hicle and must not be activated. Changing t
Changing t
he unloc
he unlocking se
king settings
ttings Po
ssible unlocking functions of theke y:
R Central unlocking
R Unlocking the driver's door and fuel /ller 0ap #
T
T o switc
o switc h be
h betw
tween se
een se ttings:
ttings: presstheÜ
and ß buttons simultaneously for appr ox-
imately six seconds until the indicator lamp
0ashes twice.
Options if the unlocking function forth e driver's
door and fuel /ller 0ap has been selected:
R T
To unloc
o unloc k t
k the v
he v ehicle centr
ehicle centr ally:
all y: press the
Ü button twice.
R V
Vehicles wit
ehicles wit h KEYLESS-GO:
h KEYLESS-GO: ifyo uto uch the
inner sur face of the door handle on the driv-
er's door, only the driver's door and the fuel
/ller 0ap are unloc ked. Deactiv
Deactiv
ating t
ating the function of t
he function of t hekey
he key V
V
ehicles wit
ehicles wit h KEYLESS-GO:
h KEYLESS-GO: ifyo u deactivate the
function of theke y,the KEYLESS-GO functions are
also deactivated. Access or drive authorization by
KEYLESS-GO is then no longer possible with that
particular key.Activate the function of theke y so
th at all its functions will again be available.
Yo u can also deactivate the function of theke yto
re duce the energy consum ption of theke y if you do not use
theve hicle or a keyfo r an extended
period of time. #
T
To deactiv
o deactiv at
ate:
e: press theß button on the
ke y twice in quick succession.
The key indicator lamp 0ashes twice brie0y
and lights up once. #
T
To activ
o activ at
ate:
e: press any but ton on thekey.
% When theve hicle is star ted with theke y in the
st ow age compartment of the centre console,
th e function of theke y is automatical lyactiva-
te d (/ page 192). 82
82
Opening and closing