2021 MERCEDES-BENZ GLS SUV battery

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

Product designation: Daimler electric air pump
Model designation: 0867,
DT/UW 200056
MB part no.: A 000 583 5101
complies with thefo llowing releva nt regulations:
2004/108/EC
Applied harm onised standards, in particular:
DIN EN 55014-1: 2012
DIN EN 55014-2: 2016
Manufacturer: Dunlop Tech GmbH
Ad dress: O.enba cher Landstr. 8, 63456 Hanau
Au thorised representative: IMS dept.
Date: October 2019
Signature: IMS-AE, IMS-AE-L Diagnos Diagnos
tics connection
tics connection
The diagnostics connection is a tech nical inter-
fa ce in theve hicle. It is used, forex ample, in the
cont ext of repair and maintenance workor for
re ading out vehicle data in a specialist workshop.
Diagnostic devices should therefore only be con-
nected in a quali/ed specialist workshop. &
W WARNING
ARNING Risk of accident due tocon-
necting devices tothe diagnostics con-
nection
If yo u connect devices tothe diagnostics con-
nection of theve hicle, the function of vehicle
systems and operating saf ety may be
impaired. #
For saf etyre asons, werecommend that
yo u only use and connect products
appr ovedby yo ur Mercedes-Benz service
centre. &
W
WARNING
ARNING Risk of accident due toobjects
in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardises the operating and road saf ety
of theve hicle. #
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. #
Always /t the 0oor mats securely and as
prescribed in order toensure that there
is alw ays su1cient room forth e pedals. #
Do not use loose 0oor mats and do not
place 0oor mats on top of one ano ther. *
N NOOTE
TE Battery discharging from using devi-
ces connected tothe diagnostics connec-
tion Using devices at
the diagnostics connection
drains the batter y. #
Check thech arge leve l of the batter y. #
Ifth ech arge leve l is lo w,charge the bat-
te ry, e.g. bydriving a considerable dis-
ta nce. Please also no
tethe information about the 12 V
battery and short-dis tance trips in the "Driving
and Parking" chap ter (/ page 195). General no
tes
35
35

fo
rex ample, your driving behaviour, your location,
yo ur route or your use patterns.
Leg
Leg al r
al req
equir
uir ements r
ements r eg
egar
arding t
ding t he disclosur
he disclosur e of
e of
data
data
If legally requ ired todo so, manufacturers are, in
individual cases, legally obliged toprov ide go vern-
mental entities, upon requ est and totheex tent
re qu ired, data stored bythe manufacturer. For
ex ample, this may be the case during the in vesti-
ga tion of a criminal o.ence.
Go vernmental entities are themsel ves, in individ-
ual cases and within the applicable legal frame-
wo rk, authorised toread out data from theve hi-
cle. In the case of an accident, information that
can help with an in vesti gation can, therefore, be
ta ke n from the airbag control unit, forex ample.
Oper
Oper ational dat ational dat a in t
a in the v
he vehicle
ehicle
This is data rega rding the operation of theve hicle,
which ha vebeen processed bycont rol units.
This includes thefo llowing data, forex ample:
R vehicle status information such as the speed,
longitudinal acceleration, lateral acceleration,
number of wheel revo lutions or thefa stened
seat belts display R
ambient conditions, su chastemp erature, rain
sensor or distance sensor
Generall y,the use of these data is temp orar y;
th ey will not be stored be yond the period of oper-
ation and will only be processed within theve hicle
itself. Control units oTen contain data memories
fo rve hicle keys,fo rex ample. Their use permits
th ete mp orary or permanent documentation of
te ch nical information about theve hicle's operat-
ing state, component loads, main tenance requ ire-
ments and tech nical events or faults.
Depending on theve hicle equipment, thefo llo w-
ing data are stored:
R operating status of system components, such
as /ll le vels, tyre pressure or battery status
R malfunctions or faults in impor tant system
components, such as lights or brakes
R system reactions in special driving situations,
such as airbag depl oyment or the inter vention
of stability cont rol systems
R information on events leading tovehicle dam-
age In cer
tain cases, it may be requ ired tostore da ta
th at wo uld ha veotherwise been used only temp o-
rari ly. This may be the case if theve hicle has
de tected a malfunction, forex ample.
If yo u use services, such as repair services and
maintenance work, stored operational data as
we ll as theve hicle identi/cation number can be
re ad out and used. They can be read out by
service network emplo yees, such as workshops
and manu facturers or third parties, such as break-
down services. The same is true in the case of
wa rranty claims and quality assurance measures.
In general, there adout is per form ed via the legally
prescribed port forth e diagnostics connection in
th eve hicle. The operational data that are read out
document tech nical states of theve hicle or of
individual components and assist in the diagnosis
of malfunctions, compliance with warranty obli ga-
tions and quality impr ovement. Tothat end, these
data, in particular information about component
loads, tech nical events, malfunctions and other
fa ults may be transmitted along with theve hicle
identi/cation number tothe manufacturer. Fur-
th ermore, the manufacturer is subject toproduct
liability. Forth is reason the manufacturer also General no
tes
39 39

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

R
R
emo
emo ving/inser
ving/inser ting t
ting the emerg
he emerg encykey
ency key R R
emo emo ving t
ving t he emerg
he emerg encykey
ency key #
Press release button 1.
Emer gency key2 is pushed out slightl y.#
Pull out eme rgency key2 until it en gage s in
th e intermediate position. #
Press release button 1again and fully
re mo veemer gency key2.
Inser
Inser ting t
ting t he emerg
he emerg encykey
ency key #
Press release button 1. #
Insert emer gency key2 tothe intermediate
position or fully until it engages. %
You can use the intermediate position of
emer gency key2 toattach theke yto akey
ri ng. R
R
eplacing t
eplacing t heke
he key batt
y batt ery
ery &
D
DAN
AN GER
GER Risk of fatal injuries due toswal-
lowing batteries
Bat teries contain toxic and cor rosive subs tan-
ces. Swall owing batteries may cause se vere
internal burns tooccur within two hours.
There is a risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e cap and/or the battery compart-
ment does not close securel y,do not use
th eke y any lon ger and keep it out of the
re ach of children. #
If batteries are swallo wed, seek medical
attention immediatel y. +
ENVIR
ENVIR ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
damage due toimproper disposal of bat-
te ries Batteries contain pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries in an
environmentally responsible manner.
Ta ke dischar ged batteries toaqu ali/ed
specialist workshop or toa collection
point for used batteries. R
R
eq
eq uir
uir ements:
ements:
R Youre qu ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a quali/ed specialist work-
shop. #
Remo vethe emer gency key (/ page 83). Opening and closing
83
83

#
Press release knob 2down fully and slide
co ver1 inthe direction of the ar row. #
Fold out co ver1 inthe direction of the ar row
and remo ve. #
Remo vebattery compartment 3and take
out the dischar ged batter y. #
Insert the new battery into battery compart-
ment 3. Obser vethe positive pole marking in
th e battery compartment and on the battery
when doing this. #
Push in battery compartment 3.#
Re-attach co ver1 and push it until it
engages. Pr
Pr
oblems wit
oblems wit h t
h the key
he key , tr
, troubleshoo
oubleshoo ting
ting Y Y
ou can no long ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle
ehicle
Po ssible causes:
R The key battery is weak or dischar ged. #
Check the battery using the indicator lamp
(/ page 81). #
Replace theke y batter y,if necessary
(/ page 83). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 88). #
Have theke ych ecked at a quali/ed specialist
wo rkshop.
Ther
Ther e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour sour ce ce
Po ssible causes if the function of theke y is
impaired:
R high voltage po wer lines
R mobile phones
R electronic devices (no tebooks, tablets) R
shielding due tome tal objects or induction
loops for electrical gate systems or automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce.
Y
Y ou hav
ou hav e los
e lost a key
t a key #
Have theke y deactivated at a quali/ed spe-
cialist workshop. #
If necessar y,ha ve the mechanical lock
re placed as well. Doors
Doors
N
No
ot
tes on t
es on t he additional door lock
he additional door lock The additional door lock is only
available forve hi-
cles forth e United Kingdom. 84
84
Opening and closing

The
vehicle is not unloc ked:
R ifyo u ha veloc kedth eve hicle using thekey
R ifyo u ha veloc kedth eve hicle using KEYLESS-
GO Loc
Loc
king/unloc
king/unloc king t
king the v
he vehicle wit
ehicle wit h KEYLESS-GO
h KEYLESS-GO R
R
eq
eq uir
uir ements:
ements:
R The key is outside theve hicle.
R The dis tance between theke y and theve hicle
does not exceed 1 m.
R The driver's door and the door on which the
door handle is used are closed.
* NO
NOTE
TEVehicle damage due touninten-
tional opening of theta ilgate R
when using an automatic car wash
R when using a high pressure cleaner #
Deactivate the function of theke y in
th ese situations.
or #
Make sure that theke y is at a minimum
dis tance of 3 m away from theve hicle. Obser
vethe no tes:
R onwashing theve hicle in a car wash
(/ page 371)
R on using a high pressure cleaner
(/ page 374) #
T
To unloc
o unloc k t
k the v
he v ehicle:
ehicle: touch the inner sur face
of the door handle. #
T
To loc
o loc k t
k the v
he v ehicle:
ehicle: touch sensor sur face 1
or 2. #
Conv
Conv enience closing:
enience closing: touch recessed sensor
sur face 2 until the closing process has been
comple ted.
% Further information on con venience closing
(/ page 98).
If yo u open theta ilgate from outside, it is auto-
matically unloc ked. Pr
Pr
oblems wit
oblems wit h KEYLESS-GO, tr
h KEYLESS-GO, tr oubleshoo
oubleshooting
ting Y
Y
ou can no long
ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle using
ehicle using
KEYLESS-GO
KEYLESS-GO
Po ssible causes:
R The function of theke y has been deactivated.
R The key battery is weak or dischar ged. #
Activate the function of theke y (/ page 82). #
Check the battery using the indicator lamp
(/ page 81). 86 86
Opening and closing

#
Press and hold theß button on thekey.
The following functions are per form ed:
R The vehicle is loc ked.
R The side windo wsare closed.
R The sliding sunroof is closed.
R The panoramic sliding roof is closed. #
T
To int
o int err
errup
upt conv
t conv enience closing:
enience closing: release the
ß button. #
T
To continue conv
o continue conv enience closing:
enience closing: press and
hold theß button again.
% Con venience closing also functions with KEY-
LESS-GO (/ page 86). R
R
esol
esol ving pr
ving pr oblems wit
oblems wit h t
h the side wind ows
he side wind ows &
W
W ARNI NG
ARNI NGRisk of becoming trapped or
fata lly injured if reve rsing pr otection is not
activated
If yo u close a side window again immediately
aTer it has been bloc ked, the side window will
close with increased or maximum forc e. The re
ve rsing function is then not active and body
parts may become trapped. #
Make sure that no parts of the body are
in the closing area. #
Tostop the closing process, release the
button or press the button again to
re open the side windo w. A side windo
A side windo
w canno
w cannot be closed and y
t be closed and y ou cannot
ou cannot
see t
see t he cause.
he cause. #
Che cktosee whe ther any objects are in the
wind owguide. #
Adjust the side windo ws.
A
A djus
djus ting t
ting t he side window
he side window s
s
If a side window is obstructed during closing and
re opens again immediatel y: #
Immediately aTer this, pull and hold the cor re-
sponding button again until the side window
has closed and hold the button for at least one
more second (re-adjustment).
The side window will be closed without the
automatic reve rsing function. If
th e side window is obstructed again and
re opens again immediatel y: #
Immediately aTer this, pull and hold the cor re-
sponding button again until the side window
has closed and hold the button for at least one
more second (follo w-up adjustment).
The side window will be closed without the
automatic reve rsing function.
The side window The side window s canno
s cannot be opened or closed
t be opened or closed
using t
using t he conv
he conv enience opening f
enience opening f eatur
eature.
e.
Po ssible causes:
R The key battery is weak or dischar ged. #
Check the battery using the indicator lamp
(/ page 81). #
Replace theke y batter y,if necessary
(/ page 83). Sliding sunr
Sliding sunr
oof
oof Opening and closing t
Opening and closing t
he sliding sunr
he sliding sunroof
oof %
The term "sliding sunroof" also refers to the
panorama sliding sunroof. Opening and closing
99
99