2021 MERCEDES-BENZ GLS SUV ECU

and
optio nall yin theHead-up Displayor cent ral
displa y.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 201).
Since Traf fic Sign Assistalso uses thedat a
st or ed inthena vig ation system, itcan updat e
th edispla yin thefo llo wing situat ionswithout
de tecting traf fic sig ns:
R Whe nth eve hicle chang esroads, e.g.fr ee‐
wa yen try or exitro ad.
R When avillag eor cityboun darywhic his
st or ed inthedigit almap ispassed.
The camer aalso detects traf fic sig ns with a
re striction indicatedbyan addit ionalsign (e.g.
when wet).
Wa rning when thema xim um permis sible
speed isexc eeded
The system can warnyouif yo uunin tentio nally
exc eed themaximum permissible speed.Todo
th is, youcan spec ifyinthemultimedia system
by howmuc hth emaximum permissible speed
can beexc eeded beforeawa rning isissued. You can
specify whether thewa rning isto be justa
visual warning oran acous ticone aswell.
Displa yin theIns trum ent Displa y In
stru ment Displa yin theWi descr eenCockpit
1 Perm issible speed
2 Perm issible speedwhenther eis are striction
3 Addition alsign withre striction
% Ve
hicl eswith ast andar dIns trument Dis‐
pla y:a+ symbo lne xt to atraf fic sig nin the
Ins trument Displayindicat esthat addit ional
traf fic sig ns have been detected. Thesecan
al so be displ ayed inthemedia displayand
op tion ally intheHead-up Display. If
Traf fic Sign Assistcanno tde term ine thecur‐
re nt ma ximu mperm issible speed(e.g.dueto
missi ngsigns), thefo llo wing displa yappear sin
th eIns trument Display: This
isdispla yedcon tinuousl yif th eve hicle isin
a countr ywher eTr af fic Sign Assistisno tsup‐
por ted. Traf fic Sign Assistisno tav ailable inall
coun tries.
% Alsoobse rveth einf ormation ondispla ymes‐
sag esinTraf fic Sign Assist(/ pag e408 ).
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions. Dr
iving andparking 263

concer
ningtheoper ating permit. This also
applies incount ries inwhic hth eper missible
maximum speedforve hicle/tr ailercombinations
is abo ve62 mph(1 00 km/h).
Ve hicl eswith AIRMA TICorE-AC TIVE BODY
CONT ROL:ifth esoc ketof thetra iler hitchis
occupied, e.g.byatrailer orrear bicy clerack ,
th eve hicle issetto thenor mal leve lre ga rdless
of thedr ive pr og ram at speed sgr eat erthan
19 mp h(30 km/h). At
tac hin gth eball neck &
WARNIN GRisk ofacci dent andinjury
due toan incorrectl yins talled ballcou‐
pling
If th eball coupling isno tins talled and
eng aged cor rectly ,it ma ybeco medetach ed
dur ing trav el and endang erother road user s.
Ther eis arisk offata linj ury. #
Installand secur eth eball coupling as
descr ibedintheball coupling manufac‐
tur er's installation instruct ions . #
When theball coupling hasbeen instal‐
led, ensureth at itis cor rectly secu red
bef oreev erytrip. &
WARNIN GRisk ofacci dent dueto an
inc orrectl yins talled and secur edball
couplin g
If th eball coupling hasnotbeen correctly
ins talled and secur ed,thetra iler can become
de tach ed. #
Installand secur eth eball coupling as
descr ibedintheball coupling manufac‐
tur er's installation instruct ions . #
When theball coupling hasbeen instal‐
led, ensureth at itis cor rectly secu red
bef oreev erytrip. Re
quirement s:
R The vehicle issecur edagains tro lling away. At
tac hin gth eball neck #
Remo vecover1 from theball neckmount
in thedir ect ion ofthear row . #
Storeco ver1 sothat itcan notmo ve
ar oun d. #
Obse rveth emanuf acturer'sinstallation
ins truct ions .
Obser vetheno teson loadi ngtheve hicle. Dr
iving andparking 27
1

Coup
lingoruncou plingatrailer &
WARNIN GRisk ofinju ryfrom theve hicle
le ve lbeing chang ed
Ve hicl eswith leve lcontr olsystem: the
ve hicle leve lma ybe chang edunin tentio nally,
e.g. byother persons. Youma ybec ome trap‐
ped ifyo uco uple uporunc ouple atrailer
while theve hicle leve lis ch ang ing.In addi‐
tio n,other people couldbecome trapped if
th eir limbs arebe tween theve hicle body and
th etir es orunder neathth eve hicle.
When coupling uporuncoupling atrailer ,
mak esur eth at: #
The door sor tailg atear eno topen edor
clos ed. #
Youdo notini tiat eth eleve lcon trol sys‐
te m and donotoper ateth eDY NA MIC
SELE CTswitc h. #
Donotloc kor unloc kth eve hicle. Re
quirement s:
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e. R
The transmission isin position 005D.
The trailer willbecor rectly detected bytheve hi‐
cle onlyif th efo llo wing condition sar eme t:
R The trailer isconn ectedcor rectl y.
R The trailer lighting system isin wo rking
or der .
The func tionsof thefo llo wing systems willbe
af fect ed byacor rectl yconnect edtrai le r:
R ActiveLa ne Keeping Assist
R ESP®
tra iler stabiliz ation
R Parking AssistPA RK TRONI C
R ActivePa rking Assist
R Blin dSpo tAss istor ActiveBli nd Spo tAssi st
R Drive Aw ayAssi st
R Cross Traf fic Aler t
R Rear vie wcam era
R Surround viewcam era
R AIR BO DY CONTR OL
R AIRMA TIC
R E-AC TIVE BODY CONTR OL Ve
hicl eswithout leve lcontr ol:theball head
height willchang edepen dingon theve hicle's
load. Inthis case, useatrailer withaheight -
adjus table draw bar .
Coupling upatrailer
* NO
TEDama getothest ar terbatt erydue
to full disc harg e Cha
rging thetra iler batt eryusing thepo we r
supply ofthetra iler can damag eth est ar ter
batt ery. #
Donotus eth eve hicle's powe rsupp ly
to charge thetrailer battery. Inf
ormation abouta suit ablebal lnec kfo r
Mer cedes-Ben zve hicles canbeobt ained from a
qu alif ied spec ialistwo rkshop, e.g.anaut hor ized
Mer cedes-Benz Center. #
Remo vetheco vercap from theball neck
mount andstor eit in asaf eplace
(/ page27 1). #
Position thetra iler onaleve lsur face beh ind
th eve hicle andcouple itup totheve hicle. 27
2
Driving and parking

No
teson theIns trum ent Displa yand on-
boar dcom puter &
WARNIN GRisk ofacci dent dueto an
In stru ment Displa ymalfu nction
If th eIns trument Displayhas failed ormal‐
func tioned,thefunc tion restrictions applying
to saf etyre leva nt systems areno tvisible.
The oper ating safetyof your vehicle maybe
im pair ed. #
Drive on car efull y. #
Have theve hicle checkedimmediat ely
at aqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofdist ra ction from infor‐
mati onsystems andcomm unication s
eq uipment
If yo uoper ateinf ormat ionand comm unic a‐
tio neq uipme ntintegratedin theve hicle
when driving, youwill bedistract ed from the
tr af fic situ ation. Thiscou ldalso cau seyouto
lose control of theve hicle. #
Onlyoper ateth is eq uipmen twhen the
tr af fic situ ation per mits. #
Ifyo ucan notbe sur eof this, stop the
ve hicle whilstpa ying attention toroad
and traffic condi tions andoperate the
eq uipment withth eve hicle statio nary. Yo
umus tobse rveth eleg alrequ iremen tsforth e
cou ntryin whi chyouar ecur rentl ydr ivi ng when
op erati ng theon- boar dcom puter.
The on-boar dcom putersho wsonlydispla ymes‐
sag esand warnings from spec ific systems on
th emultifunc tiondispla y.Yo umus tth er efor e
ensur eth at your vehicle isalw aysre liable.
If th eoper ating safetyof your vehicle is
im pair ed,parkth eve hicle immediat elyand
saf ely. Con tact aqu alif ied spec ialistwo rkshop.
Mer cedes- AMGvehicl es:besur eto obser ve
th eno tesin theSupplement .Yo uco uld other‐
wise failto recogni zedangers. 27
4
Instrument Displayand on-boar dcom puter

7
Coolan tte mp eratur edispla y
The coolant temp eratur edispla yis per mitt ed
to rise to248°F during normal oper ation.
Ve hicles with48 Von-boar delectr icalsys‐
te m: POWER andCHARGE displ ay(elect rical
dr ive su ppo rtand recup erati on powe rof the
electr icmo tor)
8 Select eddrive pr ogr am
9 Select edtransmiss ionposi tion
A Multifunction display (e xa mp le:standar ddis‐
pla yfo rtr ip) :Assis tance/T elep hone /Naviga‐
tion /Trip/Media/R adio/Stylesanddis‐
pla ys/Ser vice
B Fuelleve l,fuel filler flap locatio nind icat or,
ra ng e Ov
erview ofthebut tons on thest eer ing
wheel 1
P Back/Hom ebutt on,on-boar dcom ‐
put er
Pr ess and hold: showsstandar ddispla y
2 Touc hCon trol, on-bo ardco mp uter
3 Con trol pan elforcr uis econtr olor Active
Dis tance AssistDIS TRONI C 4
Contr olpa nel forMBUX multimediasy stem:
£ Voice Cont rolSy stem
ß Displa ysfavo rite s
VO L:contr olknob, adjuststhevo lume or
switc hesthesound off0063 (press)
0061 Makes/acc epts acall
0076 Rejects /end sa cal l
5 00E2 Calls up thehome screen
6 Touc hCon trol mult imed iasystem
7 G Backbutt on
8 Brightn esscontrol to adjus tth elighting in
th eIns trument Displayand inthecon trol
element sof theve hicle interior Oper
ating theon-boa rdcom puter
Obser vetheleg alrequ iremen tsforth ecount ry
in whic hyo uar ecur rently drivi ng when operat‐
ing theon- boar dcom puter. 27
6
Instrument Displayand on-boar dcom puter

Ov
ervie wand oper ation No
teson theMB UX multim edia system &
WARNIN GRisk ofdist ra ction from infor‐
mati onsystems andcomm unication s
eq uipment
If yo uoper ateinf ormat ionand comm unic a‐
tio neq uipme ntintegratedin theve hicle
when driving, youwill bedistract ed from the
tr af fic situ ation. Thiscou ldalso cau seyouto
lose control of theve hicle. #
Onlyoper ateth is eq uipmen twhen the
tr af fic situ ation per mits. #
Ifyo ucan notbe sur eof this, stop the
ve hicle whilstpa ying attention toroad
and traffic condi tions andoperate the
eq uipment withth eve hicle statio nary. Yo
umus tobse rveth eleg alrequ iremen tsforth e
cou ntryin whi chyouar ecur rentl ydr ivi ng when
op erati ng themultimedia system. Ov
ervie wof theMB UX multim edia system 1
Touc hCon trol and contro lpanel forth e
MBUX multimedia system
2 Media displaywit hto uc hfun ction alit y
3 Touc hpad
4 Con troller
Tu rning: adjus tsthevo lume Pr
ess brief ly:swi tches themut efunc tion
on/ off
Pr ess and hold: switchesthemultimedia sys‐
te m or media display on oroff
5 Butt ons forna vig ation, radio/media and
te lephon e
6 Buttons forve hicle functions/sy stem set‐
ting sand favo rite s/t hemes
Fu rther oper ating options:
R Conducting avo ice dialog withth eVo ice
Cont rolSy stem.
R Oper ating functionscon tact-free with the
MBUX Interior Assis tant.
% Youcan find further information aboutoper‐
ation aswellas about applicat ionsandserv‐
ices intheDigit alOper ator's Manual.
Anti-t heftpr otection
This devic eis eq uipped withte ch nica lpr ov ision s
to protect itag ains tth eft. Fu rther information on
pr otect ion agains tth eftcan beobt ained from an
aut hor ized Mercedes- BenzCenter. MBUX
multimedia system 28
1

-
Author izing andde-aut horizing devices
R Time &dat e
R Langu age
R Units fordis tance
R Softwareup dates
R Dat aim po rt/e xpor t
R PIN protect ion
R System Reset Inf
ormat iononimpor tant system updates Im
por tant system updat esma ybe neces saryfo r
th esecur ityofyour mult imed iasystem's data.
Ins tallth ese updat es,orelse thesecur ityofyour
mult imed iasystem cann otbe ensur ed.
A sy stem updat econ sistsof thre esteps:
R Downloading orcop ying ofthedat are qu ired
fo rins tallation
R Installation ofthedo wnloaded system updat e
R Activati on ofthedo wnloaded system updat e
by restar tin gth esy stem %
Ifaut omatic softwareupdat esareactiv ated,
th esy stem updat eswill bedownloaded auto‐
maticall y.
The multimedia system prov ides amess age
when asy stem updat eis available.
Yo uha ve thefo llo wing selectionoption s:
R Accept andInstall
The system updat ewill bedownloaded inthe
bac kground .
R Infor mat ion
In fo rm atio nabout thepending system
updat eis displa yed.
R Later
The system updat ecan bedownloaded man‐
uall yat alat er time.
Deep system updates
Dee psy stem updat esaccess vehicle orsystem
se ttings andcanther efor eonl ybe car ried out
when theve hicle isstatio naryand theignition is
switc hedoff.
If th edo wnload ofadeep system updat eis com‐
ple tedand thedo wnloaded system updat eis re
ady forins tallation ,yo uwill beinformed ofthis
af te rth ene xt ignition cycle, forex am ple.
% Park theve hicle safely inasuit able location
bef orest ar tin gth eins tallation .
Re quiremen tsforth eins tallation :
R The ignit ionisswitc hedoff.
R Notesand warnings have been read and
acc epted.
R The elect ric pa rking brak eis applied.
If all requ iremen tshave been fulfilled, thedo wn‐
loaded system updat eis ins talled. Themultim e‐
dia system cann otbe oper ated while thedo wn‐
loaded system updat eis being installed and
ve hicle functionsarere strict ed.
If er ro rs should occurduring theins tallation ,th e
multime diasystem automatic allyatt em ptsto
re stor eth epr ev ious version. Ifre stor ation ofthe
pr ev ious version isno tpossible ,a symbol
appear son themedia display.Con sult aqu ali‐
fi ed specialis two rkshop toresolv eth epr oblem. 290
MBUX multimedia system

Se
tting upaWi -Fiho tspo t Re
quirement s:
R Tosetup theWi -Fico nne ctio nof themu l‐
tim edia system withex tern al ho tspo ts:
th er eis no comm unication moduleinstalled.
R The device tobe con nectedsuppor tsat leas t
one ofthetypes ofcon nect iondescr ibed.
Multimedia system:
4 © 5
Set ting s5
System
5 Wi-Fi &Bluetoot h
Ac tiv atin g/deac tivatin gWi -Fi #
Sele ctWi-Fi .
Co nne ctin gth emu ltim edia system withan
ex tern al ho tspo tusin gWi -Fi
The type ofconnection established mustbe
select edon themultimedia system and onthe
de vice tobe con nected.
% The connection procedur ema ydif fer
dependin gon thede vice. Followtheins truc‐
tion sth at aresho wninthedispla y.Fu rther
inf ormation canbefound inthemanuf actur‐
er's oper ating instruction s. #
Select Internet Setting s. #
Select Connec tvia Wi-Fi. #
Select AddHotspot.
Connecting usingasecur itykey #
Select theop tion s0048 ofthedesir edWi-Fi
ne twork. #
Select Connect UsingSecu rityKey. #
Have thesecur itykeydisp laye don thede vice
to be con nected(see themanuf acturer's
oper ating instruction s). #
Enterth is secur itykeyon themultimedia sys‐
te m. #
Conf irm theent rywit h¡.
Connecti ngusing aWPS PIN #
Sele cttheop tion s0048 ofthedesir edWi-Fi
ne twork. #
Select Connect viaWPS PINInpu t.
The multime diasy stem gener ates an eight-
di gitPIN . #
Enterthis PIN onthede vice tobe con nected. #
Conf irm theent ry. Connect
ingusin gabut ton #
Select theop tion s0048 ofthedesir edWi-Fi
ne twork. #
Select Connect viaWPS PBC. #
Select "Connect viaWPS PBC"in theop tion s
on thede vice tobe con nected(see theman‐
uf actur er'soper ating instruction s). #
Press theWPS buttononthede vice tobe
con nected. #
Select Continueinthemultimedia system.
Ac tiv atin gaut omati cco nn ectio n #
Select Connect viaWi-Fi. #
Select theop tion s0048 ofthedesir edWi-Fi
ne twork. #
ActivatePe rma nent InternetConnecti on.
Co nnectin gwi th akno wnWi-Fi #
Sele ctConnect viaWi-Fi . #
Sele ctaWi -Fi network.
The conn ection ises tablished again. MBUX
multimedia system 29
1