maintenance MERCEDES-BENZ GLS SUV 2021 Owners Manual

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

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

Connecting and using ano
ther device with the
diagnostics connection can ha vethefo llowing
e.ects:
R Malfunctions in theve hicle system
R Perm anent damage tovehicle components
Please referto thewa rranty term s and conditions
fo rth is matter. Moreo
ver,connecting equipment tothe diagnos-
tics connection can lead toemissions monitoring
information being reset, forex ample. This may
lead totheve hicle failing tomeet there qu ire-
ments of the next emissions inspection during the
main inspection. Quali/ed
Quali/ed
specialis
specialist w
t work
ork shop
shop
A qu ali/ed specialist workshop has the necessary
special skills, tools and quali/cations tocor rectly
car ryout any necessary workon your vehicle.
This particular lyapplies tosaf ety-re leva nt wo rks.
Alw ays ha vethefo llowing workcar ried out on
yo ur vehicle at a quali/ed specialist workshop:
R Safety-re leva nt wo rks
R Service and maintenance work
R Repair work
R Modi/cations as well as installations and con-
ve rsions
R Workon electronic components R
V Vehicles wit ehicles wit h 48 V on-boar
h 48 V on-boar d electr
d electrical syst
ical syst em:
em:
wo rkon the high-voltage component of the 48
V on-board electrical system
Mercedes‑Benz recommends a Mercedes‑Benz
service cent re. V
V
ehicle r
ehicle r egis
egistrtration
ation
Mercedes-Benz may ask its service centres to
car ryout tech nical inspections on cer tain vehi-
cles. The quality or saf ety of theve hicle is
impr oved as a result of the inspection.
Mercedes-Benz can only inform you about vehicle
ch ecks if Mercedes-Benz has your registration
data.
It is possible that your vehicle has not yetbeen
re gistered in your name in thefo llowing cases:
R ifyo ur vehicle was not pur chased at an author-
ised specialist deale r.
R ifyo ur vehicle has not yetbeen examined at a
Mercedes-Benz service cent re.
It is advisable toregister your vehicle with a
Mercedes-Benz service cent re.36 36
General no
tes

Inform Mercedes-Benz as soon as possible about
any
change in address or vehicle ownership. Yo u
can do this at a Mercedes-Benz service centre,
fo rex ample. Corr Corr
ect use of t
ect use of t he v
he vehicle
ehicle
If yo ure mo veany warning stic kers,yo u or others
could failto recognise cer tain dangers. Lea ve
wa rning stic kers in position.
Obser vethefo llowing information in particular
when driving your vehicle:
R the saf ety no tes in this Owner's Manual, vehi-
cle-speci/c supplements and fu rther supple-
men tary documents
R tech nical data forth eve hicle
R tra1c rules and regulations
R laws and saf etystanda rds per taining tomo tor
ve hicles Inf
Inf
or
ormation on t
mation on t he REAC
he REACH rH regulation
egulation
EU and EFT
EU and EFT A countr
A countries only:
ies onl y: th
e REACH regulation (Regulation (EC) No.
1907/2006, Article 33) stipula tes a duty tosup-
ply information about subs tances of very high
conce rn(SVHCs).
Me rcedes‑Benz AGacts tothe best of its kno wl-
edge toprev ent these SVHCs from being used
and toenable customers tosafely handle these
substances. There are SVHCs known to
Mercedes‑Benz AG, according tosupplier informa-
tion and internal product information, found in
individual components of this vehicle in quantities
of ove r 0.1 percent byweight.
Fu rther information can be obtained at thefo llo w-
ing addresses:
R https://reach.daimler.com/de/home/
R https://reach.daimler.com/en/home/ N
No
ot
tes f
es f or per
or per sons wit
sons wit h electr
h electronic medical aids
onic medical aids
Mercedes-Benz AGcannot, despite carefully
de veloping vehicle systems, comple tely rule out
th e interaction of vehicle systems with elect ronic
medical aids such as ca rdiac pacemake rs. In addition,
there are components ins talled in the
ve hicle that, rega rdless of the operating status of
th eve hicle, can generate magnetic /elds on a par
with permanent magnets. These /elds can be
fo und, forex ample, in the area around the multi-
media and sound system or also in the area of the
seats, depending on theve hicle equipment.
Fo rth is reason, thefo llowing can occur in isolated
cases, depending on the aids used:
R Medical aids malfunctioning
R Adve rse health e.ects
Obser vethe no tes and warnings of the manufac-
turer of the medical aids; if in doubt, contact the
device manufacturer and/or your doctor. If there
is continuing uncer tainty concerning the possibil-
ity of medical aids malfunctioning, Mercedes-
Benz AGrecommends using only fewelectrical
ve hicle systems and/or main taining a distance
from the components.
Only ha verepairs and maintenance workinthe
area of thefo llowing components car ried out at a
quali/ed specialist workshop:
R vehicle components car rying live voltage General no
tes
37 37

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

uses operational data from
theve hicle, forex am-
ple, forre calls. These data can also be used to
ex amine the customer's warranty and guarantee
claims.
Fa ult memories in theve hicle can be reset by a
service outl etor at your requ est as part of repair
or maintenance work.
Conv
Conv enience and inf ot
enience and inf otainment functions ainment functions
Yo u can store con venience settings and individual
settings in theve hicle and change or reset them
at any time.
Depending on theve hicle equipment, this
includes thefo llowing settings, forex ample:
R seat and steering wheel positions
R suspension and climate cont rol settings
R individual settings, such as interior lighting
Depending on the selected equipment, you can
import data into vehicle inf otainment functions
yo urself. Depending on
theve hicle equipment, this
includes thefo llowing data, forex ample:
R multimedia data, such as music, /lms or pho-
tosfo r playback in an integ rated multimedia
system
R address book data for use in connection with
an integ rated hands-free system or an integ ra-
te d navigation system
R entered navigation destinations
R data about the use of Internet services
These data for con venience and inf otainment
functions may be sa ved locally in theve hicle or
th ey may be located on a device which you ha ve
connected totheve hicle, such as a smartphone,
USB 0ash drive or MP3 pla yer.Ifyo u ha veentered
th ese data yourself, you can dele tethem at any
time.
This data is transmitted from theve hicle tothird
parties only at your requ est. This applies, in par-
ticular, when you use online services in accord-
ance with the settings that you ha veselected. Smar Smar
tphone int tphone int egr
egration (e.g. Andr
ation (e.g. Andr oid A
oid Aut
uto or
o or
Apple CarPlay
Apple CarPlay ®
®
)
)
If yo ur vehicle is accordingly equipped, you can
connect your smartphone or ano ther mobile end
device totheve hicle. You can then control them
by means of the control elements integ rated in
th eve hicle. Images and audio from the smart-
phone can be output via the multimedia system.
Cer tain information is simultaneously transfer red
to your smartphone. Depending on the type and
integ ration, this includes position data, day/night
mode and other general vehicle statuses. For
more information please consult the Owner's
Manual of theve hicle/inf otainment system.
This integ ration allo ws the use of selected smart-
phone apps, such as navigation or music pla yer
apps. There is no fu rther interaction between the
smartphone and theve hicle; in particular, vehicle
data is not directly accessible. The type of addi-
tional data processing is de term ined bythe pro-
vider of the app being used. Which settings you
can make, if an y,depends on the speci/c app and
th e operating system of your smartphone. 40 40
General no
tes

#
Foldthe wiper arms back onto the wind-
screen. #
Switch on theve hicle. #
Press theî button on the combination
switch.
The wiper arms will return totheir original
positions. #
Switch o. theve hicle.
% Check the condition of the wiper blades regu-
lar lyand replace them in theev ent of visible
damage or ongoing smearing. Maint Maint
enance display
enance display #
Remo veprotective /lm 1from the mainte-
nance displa yson the tips of the ne wly/tted
wiper blades.
When the colour of the maintenance displa ys
ch anges from black toyello w, replace the wiper
blades. %
The duration until the colour changes varies
depending on the usage conditions. R
R
eplacing t
eplacing t he windscr
he windscr een wiper blades (MA
een wiper blades (MA GIC
GIC
VISION C
VISION C ONTR
ONTROL)
OL) Mo
Mo
ving t
ving t he wiper ar
he wiper ar ms int
ms into t
o the r
he r eplacement posi-
eplacement posi-
tion
tion #
Switch o. theve hicle. #
Within around 15 seconds, press theî
button on the combination switch
(/ page 168).
The wiper arms will mo veinto there placement
position. Light and sight
171
171

Ov
Ov
er
ervie
vie w of climat
w of climat e contr
e control syst
ol systems
ems N
No
ot
tes on climat
es on climat e contr
e control
ol An interior air /lter in combination with
the pre/l-
ter inthe engine compartment must alw ays be
used so that the air conditioning system, pollution
le ve l monitoring and the air /lt ration workcor-
re ctl y.Use /lters recommended and appr oved by
Mercedes-Benz. Alw ays ha vemaintenance work
car ried out at a quali/ed specialist workshop. Ov
Ov
er
ervie
vie w of t
w of t he air conditioning contr
he air conditioning contr ol panel
ol panelThe indicator lamps on
the buttons indicate that
th e cor responding function is activated. THERM
OTRO NIC air conditioning cont rol panel with
stationary heater (e xample)
1 w Setsthete mp erature on the driver's
side
2 A Calls up the air conditioning menu
3 H Setsthe air0ow or switches o. climate
control
4 Ã Sets climate control toautomatic mode
(/ page 180)
5 ¬ Demisting the windscreen
6 ¤ Switches there ar wind owheater on/o.
7 g Switches air-recirculation mode on/o.
(/ page 181) 8
Á Switches the A/C function on/o.
(/ page 179)
Switches residual heat on/o.
(/ page 181)
9 Vehicles with THERM ATIC or THERM OTRO NIC
control panel with stationary heater: &
swit ches stationary heater on/o.
(/ page 183)
Ve hicles with THERM ATIC or THERM OTRO NIC
control panel without stationary heater: 0
swit ches synchronisation on/o.
(/ page 181)
A w Setsthete mp erature on the front
passenger side
% THERMAT IC equipment is available for all vehi-
cles except Mercedes-M aybach vehicles. 178
178
Climate cont
rol

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

#
Press rock er switch 1up.
or #
Say "Hello Mercedes". Ov
Ov
er
ervie
vie w of t
w of t he MBUX Int
he MBUX Int er
erior Assist
ior Assist ant
ant &
W
WARNING
ARNING Risk of injury from the cam-
era's laser radiation
This product uses a classi/cation 1 laser sys-
te m. If the housing is opened or damaged,
laser radiation may damage your retina. #
Do not open the housing. #
Always ha vemaintenance workand
re pairs car ried out byaqu ali/ed special-
ist workshop. This device is a class 1 laser product in accord-
ance with IEC 60825-1:2014 and DIN EN
60825-1:2014. The camera is located in
theove rhead control
panel.
If th eve hicle is /tted with the MBUX Interior
Assistant, selected functions of the multimedia
system can be operated contact-free. The MBUX
Interior Assistant can di.erentiate between driver
and front passenger interactions and de tects spe-
ci/c hand positions (poses).
Syst Syst em limits, displa
em limits, displa y messag
y messages and not
es and not es f
es for
or
r
r ecti/cation
ecti/cation
The system may be impaired or may not function
in thefo llowing situations:
R The camera in theove rhead control panel may
heat up due tooperating conditions. As a
re sult the camera may switch o. temp oraril y,
particular lyduring longer periods of operation
and at high outside temp eratures. Do not
touch or co verth e camera and wait
until the camera has cooled down and is avail-
able again.
R The camera is co vered, dirty, misted up or
scratched.
Wa it until the camera has cooled down before
cleaning the camera lens.
Clean the outside of the camera lens with a
dry or damp cotton clo th. Do not use micro/-
bre clo ths. Do no not tre mo vethe co ver when
cleaning.
R Recognition can be impaired byre0ective
clo thing, an adverse colour of clo thing or by
accessories, forex ample.
R Clothing being worn(hat, sha wl, scarf) may be
limiting the de tection area of the camera.
Ke ep the camera's /eld of vision clear.
R The camera is not operational.
Consult a Mercedes-Benz service centre. 320 320
MBUX multimedia system