MERCEDES-BENZ GLB SUV 2021 Workshop Manual

R
PRE-S AFE®
Sound: prov ided that themulti‐
media system isswitc hedon,gener ates a
br iefnoi sesigna lto stimulat eth einnat epr o‐
te ctiv emec hanism ofaper son's hearing.
* NO
TEDama gecau sed byobject sin the
fo ot we llor behin dth eseat The
automatic adjustmentof theseat posi‐
tion mayre sult indamag eto theseat and/or
th eobjec t. #
Stow object sin asuit able place. Re
versing thePRE- SAFE®
sy stem mea sures If
an acc iden tdid notocc ur,th epr e-em ptive
measur esthat we retak en arere ve rsed.
Yo uwill need toper form certainse ttings your‐
self . #
Ifth eseat beltpre-t ension ingisno tre duced,
mo vetheseat backres tbac kslightl y.
The locking mechanism releases. Fu
nction ofPRE-S AFE®
PL US (anticipat ory
occupant protection plus) PRE-
SAFE®
PL US can detect cer tain im pact s,
par ticular lyan imm inentrear impact ,and take
pr e-em ptive measur estoprotect theve hicle
occupants. Thesemeasur escanno tnecessar ily
pr eve ntan imm inentimpact.
PR E-S AFE ®
PL US can implem entthefo llo wing
measur esindepe ndently of eac hot her :
R Tight ening theseat belts onthedr iver's seat
and front passeng erseat.
R Increasin gbr ak epr essur ewhen theve hicle
is statio nary.This brak eapplication iscan‐
celed automaticall ywhen theve hicle pulls
aw ay.
If an accident didnotoccur ,th epr e-em ptive
measur esthat we retake nar ere ve rsed.
Sy stem limit s
The system will notinitiat ean yaction inthefo l‐
lo wing situat ions:
R when backingup The
system will notinitiat ean ybr aking applica‐
tion inthefo llo wing situat ions:
R whils tdr ivin g
or
R when entering orexitin gapar kingspace
while using ActivePa rking Assist Au
tomatic measures afte ran acciden t
Dep endingonthetype andseverity of theacci‐
dent ,and depending ontheve hicle's equipment,
th efo llo wing measur escan beimplemen ted, for
ex am ple:
R Automatic braking (post-collisi onbrak e)
R Activati ng thehazar dwa rning light s
R Trigg ering anaut omat icemer gency call
(/ page 259)
R Switc hingoffth eengine
To restar tth eve hicle, switchth eignition off
and switc hit bac kon (/ page14 4).
Dep endingonthetype andseverity of the
acc iden t,itis poss iblethat theve hicle can
no long erbe star ted. Occ
upant safety 49

R
Swi tching offth efuel supply
R Unloc kin gth eve hicle doors
R Lowe ring theside windo ws
R Display ing theemer gency guide in themulti‐
media system displa y
R Switc hingontheint erior lighting
Fu nction ofthepos t-collision brak e
Dep endingontheacciden tsituation ,th epos t-
collision brak ecan minimiz eth ese verity of afu r‐
th er collision oreve navo idit.
If an acc ident isde tected, thepos t-collision
br ak ecan implement automatic braking. When
th eve hicle hascome toast ands till,th eelectr ic
par king brak eis aut omaticall yapplied.
The driver can canc elaut omatic braking bytak‐
ing thefo llo wing actions :
R Brakin gmor est ro ng lythan aut omat icbrak‐
ing
R Fully depr essin gth eaccelera torpeda lwit h
fo rc e Saf
elytranspor tingchildr enintheve hicl e Alw
aysobser vewhen childr enaretrave ling
in theve hicl e %
Also strictly observe thesaf etyno tesfo rth e
specif icsituation. Inthis wa yyo ucan recog‐
nize potentia lri sk sand avoiddang ersif ch il‐
dr en aretrav eling intheve hicle
(/ page51 ).
Be dilig ent
Bear inmind that neg ligenc ewhen securing the
ch ild inthech ild restra int system mayha ve ser i‐
ous conseq uences. Alwaysbe dilig entinsecur‐
ing ach ild car efull ybef oreeve ryjou rney .
To improve protect ion forch ildr enyoung erthan
tw elv eye arsold orunde r5 ft (1.50 m)inheight ,
Mer cedes- Benzre comme ndsyouobse rveth e
fo llo wing informatio n:
R Alw ayssecur eth ech ild inach ild restra int
sy stem suitable forth is Mer cedes -Benz vehi‐
cle.
R The child restra int system mus tbe appr opri‐
at eto theag e, we ight andsize ofthech ild. R
The vehicle seatmustbe suit able forins tal‐
ling ach ild restra int system.
Ac cid ent statis ticssho wthat childr ensecur ed
on there ar seat sar ege ner ally saf erthan chil‐
dr en secur edon thefront seats. Forth is reason ,
Mer cedes-Ben zst ro ng lyadvis esthat youins tall
a ch ild restra int system onare ar seat .
Th ege ner icterm child restra int system
The gener icterm child restra int system isused
in this Opera tor's Manua l.A ch ild restra int sys‐
te m is, forex am ple:
R abab ycar seat
R are ar wa rd-faci ng child seat
R afo rw ard-f acin gch ild seat
R ach ild boos terseat withabac kres tand seat
belt guide
Mer cedes-Benz recomme ndsusing ach ild
boos terseat withabac kres t.
The child restra int system mus tbe appr opriate
to theag e, we ight andsize ofthech ild. 50
Occupant safety

Obser
velaws and legalrequ irement s
Alw aysobser vetheleg alrequ iremen tswhen
using ach ild restra int system intheve hicle.
Obser vestandar dsforch ild restra int sys‐
te ms
All child restra int systems mustmee tth efo llo w‐
ing standar ds:
R U.S. Feder alMo torVe hicle SafetySt andar ds
21 3and 225
R Canadi anMo torVe hicle SafetySt andar ds
21 3and 210.2
Conf irmatio nth at thech ild restra int system
com plies withth est andar dscan befound onan
ins truct ion label onthech ild restra int system.
This confirm atio ncan also befound intheins tal‐
lation instruct ions that areinc luded withth e
ch ild restra int system. De
tectin grisk s,avo iding danger Secur
ingsystems forch ild restra int systems
in theve hicl e
Only usethefo llo wing secur ingsystems forch ild
re stra int systems:
R theLA TC H-type (ISOFIX )mou nting brac kets
R theve hicle's seatbeltsystem
R theTo pTe ther anc horages
Ins talling aLA TC H-type (ISOFIX )ch ild restra int
sy stem isprefer red.
Sim plyattaching tothesecur ingrings onthe
ve hicle canreduce therisk ofins talling thech ild
re stra int system incor rectly .
Whe nsecu ring ach ild withth eint egr ated seat
belt oftheLA TC H-type (ISOFIX )ch ild restra int
sy stem, alwayscom plywit hth eper missible
gr oss weight forth ech ild and child restra int sys‐
te m (/ page55).
A boos terseat maybe necessar yto achie ve
pr oper seatbeltposition ingforch ildr enove r
40 lbs (18 kg )in we ight orunt ilth ey reac ha heigh
twher eath re e-point seatbeltcanbefas‐
te ned prop erly wit hout aboos terseat.
Mer cedes-Benz recomme ndsasu itab lech ild
boos terseat withabac kres tand seat beltguide.
Ad vantag eof are ar wa rd-faci ng child
re stra int system
It is prefer able totrans portabab yor asmall
ch ild inasuit able rear wa rd-faci ng child restra int
sy stem. Inthis case, thech ild sits intheoppo‐
sit edir ect ion tothedir ect ion oftrave land faces
ba ckwa rds.
Babies andsmall childr enhave com parativ ely
we ak nec kmusc lesinrelation tothesize and
we ight oftheir head. Therisk ofinjur yto thecer‐
vical spine during anacciden tcan bereduced in
a re ar wa rd-faci ng child restra int system. Occ
upant safety 51

Alw
ayssecur each ild restra int system cor‐
re ctl y &
WARNIN GRisk ofinju ryor deat hdue to
inc orrect ins tallation ofthech ild
re stra int system
The child can then notbe protect edor
re stra ined asintended . #
Besureto com plywith themanuf actur‐
er's installation instruct ions forth e
ch ild restra int system and itscor rect
us e. #
Makesur eth at theent ire base ofthe
ch ild restra int system alwaysre stson
th esitt ing surface oftheseat. #
Neverpla ceobjects (e.g.cushi ons)
under orbehi ndthech ild restra int sys‐
te m. #
Use child restra int systems onlywit h
th eor iginal coverdesi gned forth em. #
Alw aysre place damag edcovers wit h
ge nui ne covers. &
WARNIN GRisk ofinju ryor deat hdue to
uns ecur edchild restra int systems inthe
ve hicle
If th ech ild restra int system isincor rectl y
ins talled ornotsecur ed,itcan com eloose.
The child restra int system could beflung
ar oun dand hitvehicle occupants. #
Alw aysins tallch ild restra int systems
cor rectl y,eve nwh en notin use. #
Alw ayscom plywit hth ech ild restra int
sy stem manuf acturer'sinstallation
ins truct ions . R
Alw aysobser vethech ild restra int system
manuf acturer'sinstallation andopera ting
ins truct ions aswellas theve hicle-specif ic
inf ormation:
- Installing theLA TC H-type (ISOFIX )ch ild
re stra int system onthere ar seat
(/ page55).
- Sec uring thech ild restra int system with
th eseat beltonthere ar seat
(/ page59). -
Sec uring thech ild restra int system with
th eseat beltonthefront passeng erseat
(/ page61 ).Ob serveth especif ic
ins truction sfo rth ere ar wa rd-faci ng and
fo rw ard-f acin gch ild restra int systems
(/ page60).
If th efront passeng erseat isoccupied,
ensur e,bo th bef oreand during thejour‐
ne y,that thest atus ofthefront
passeng erairbag iscor rect forth ecur‐
re nt situa tion(/ page 46).
R Obse rveth ewa rning labels intheve hicle
int erior and onthech ild restra int system.
R Also secur eTo pTe ther ifpr esent .
Do notalt er thech ild restra int system &
WARNIN GRisk ofinju rydue tomodif i‐
cations tothech ild restra int system
The child restra int system can nolong er
func tion proper ly.Thi spos esan incr eased
ri sk ofinjur y. #
Nevermodify ach ild restra int system. 52
Occupant safety

#
Onlyaf fix acce ssories whic hha ve been
speciall yappr oved forth is ch ild
re stra int system bythech ild restra int
sy stem's manuf acturer. Onl
yuse child restra int systems whichar ein
pr oper working condit ion &
WARNIN GRisk ofinju ryor deat hcaused
by theuse ofdamag edchild restra int
sy stems
Child restra int systems ortheir retainin gsy s‐
te ms that have been subjec tedto stre ss in
an accident mayno tbe able toper form their
int ended protect ive func tion.
It ma ybe thecase that thech ild can notbe
pr oper lyrestra ined. #
Alw aysimmediat elyre place child
re stra int systems that have been dam‐
ag ed orinvo lved inan acc ident . #
Have thesecur ingsystems forth ech ild
re stra int systems checkedat aqu alif ied
spec ialistwo rkshop beforeins talling a
ch ild restra int system again. Av
oid direct sunli ght &
WARNIN GRisk ofburnswhen thech ild
seat isex posed todirect sunlight
If th ech ild restra int system isex posed to
dir ect sunlight orheat, partscould heatup.
Childr encould sufferbur nsfrom these parts,
par ticular lyon theme tallic partsof thech ild
re stra int system. #
Alw aysmak esur eth at thech ild
re stra int system isno tex posed to
dir ect sunlight . #
Protect thech ild restra int system witha
blank et,fo rex am ple. #
Ifth ech ild restra int system has been
ex posed todirect sunlight ,allo witto
cool beforesecu ring ach ild intoit. #
Neverlea vechildr enunat tende din the
ve hicle. Obser
vewhen stopping orpar king &
WARNIN GRisk ofacci dent andinjury
due tochildr enleftunat tende din the
ve hicle
If ch ildr enarelef tunsuper visedintheve hi‐
cle, they cou ld,in pa rticular :
R Open doors,ther eb yendang ering other
per sons orroad user s.
R Getout and bestru ck byoncom ingtraf‐
fi c.
R Ope rate vehicle equipment andbecome
tr apped, forex am ple.
In addit ion,th ech ildr encould alsosetth e
ve hicle inmo tion, forex am ple by:
R Releasing thepar king brak e.
R Chang eth etransmission position.
R Startth eve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. Occupant
safety 53

#
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Keep theSmar tKey out ofreac hof chil‐
dr en. &
WARNIN GRisk offata linj urydue to
ex posur eto extreme heat or col din the
ve hicle
If people –par ticular lych ildr en–ar e
ex posed toextreme temp eratur esover an
ex tende dpe riod oftime, ther eis arisk of
ser ious oreve nfa ta linj ury. #
Neverlea veanyone –pa rticular lych il‐
dr en –unat tende din theve hicle. #
Neverlea veanim alsintheve hicle unat‐
te nde d. Ov
erview ofsuita bleseat sin theve hicl efo r
ins talling ach ild restra int system Lef
t/right rear seat
Second rowofseats, prefer redsecur ingsystem:
® LATC H-type (ISOFIX )ch ild seat secur ing
sy stem
¯ Alsosecur eTo pTe ther ifpr esent
(/ page58)
Thir drow ofseats, prefer redsecur ingsystem:
® LATC H-type (ISOFIX )ch ild seat secur ing
sy stem
¯ Alsosecur eTo pTe ther ifpr esent
(/ page58)
Lef t/right rear seat (secondand third seat row)
– alt ernativ esecur ingsystem:
0076 Ve
hicle seatbelt
Fr ont passeng erseat
Sec uring system:
0076 Ve
hicle seatbelt Be
sureto obser ve:
R Ifth efront passeng erseat isoccupied,
ensur e,bo th bef oreand during thejour ney,
th at thest atus ofthefront passeng erairbag
is cor rect forth ecur rent situa tion
(/ page 46).
R Obse rveth eno teson aut omatic front
passeng erairbag shutoff(/ page44 )
Cent errear seat
Cent errear seat (secondseat row)– secur ing
sy stem:
0076 Ve
hicle seatbelt
¯ Alsosecur eTo pTe ther ifpr esent
(/ page58) 54
Occupant safety

Ac
tiv atin gor deac tivatin gthe child seat
saf etyfe atur eof theseat belt &
WARNIN GRisk ofinju ryor deat hif a
seat beltisunf astened while th eve hicle
is in mo tion
If th eseat beltisreleased whiletheve hicle is
in mo tion, thech ild safetyloc kis deac tiva ted
and thech ild restra int system isno long er
cor rectly secu red. The seat beltisretract ed
sl ig htly bytheiner tiareel and cann otbe
immediat elyfastened again. #
Stop theve hicle immediat elyinaccor d‐
ance withth etraf fic condi tions. #
Activateth especial seatbeltretract or
ag ain and correctl ysecu rethech ild
re stra int system. When
enabled, thech ild seat safetyfe atur e
ens ures that theseat belts ofthefront
passeng erseat andrear seat sdo notslac ken
once thech ild restra int system issecur ed. The
seat belts onthefo llo wing seats areeq uip‐
ped withach ild seat safetyfe atur e:
R Front passeng erseat
R Rear seat s #
Toins tall ach ild restra int system: when
ins talling ach ild restra int system, always
obser vethemanuf acturer'sinstallation and
opera tingins truct ions aswellas theinf orma‐
tion inthis Oper ator's Manual. #
Pull theseat beltsmoo thly from theseat belt
outle t. #
Engage theseat belttongu ein theseat belt
buc kle. #
Toactiv ateth ech ild seat safetyfe atur e:
pul lth eseat beltoutfully andletth einer tia
re el retract itag ain.
Wh enthech ild seat safetyfe atur eis act iva‐
te d, youwill hear ara tche ting sound. #
Push thech ild restra int system down until
th eseat beltsitstight ly. #
Todeac tivatethe child seat safetyfe a‐
tur e:press there lease buttonoftheseat
belt buckle. #
Hold theseat belttongu eand guide ba ck to
th eseat beltoutle t. Ins
talling aLA TC H-type (ISOFI X)child
re stra int system onthere ar seat Ins
tallingaLA TC H-type (ISOFI X)child
re stra int system onthere ar seat &
WARNIN GRisk ofacci dent ifth ere ar
ben chseat, rear seat andseat backres t
ar eno teng aged
The rear ben chseat, rear seat andseat back‐
re st ma yfo ld forw ards, evenwh en youar e
dr ivin g.
R Asare sult, theve hicle occupant willbe
pushed intoth eseat beltwithincr eased
fo rc e. The seat beltwillnotbe able to
pr otect asintended andcould cause
additional injury.
R Objects orloads inthetrunk orcar go
com partmen twill notbe restra ined by
th eseat backres t. Occ
upant safety 55

#
Mak esur eth at there ar ben chseat, the
re ar seat andtheseat backres tar e
eng aged bef oreeve rytrip . Ensu
rethat there ar seat backres tis eng aged. To
do so, pull forc efull yon theseat backres t. &
WARNIN GRisk ofinju ryor deat hif th e
per missible gross mass ofthech ild and
ch ild restra int system isexc eeded
To omuc hload maybe placed ontheLA TC H-
type (ISOFIX )ch ild seat secur ingsystems
and thech ild ma yno tbe restra ined inthe
ev ent ofan acciden t,forex am ple. #
Ifth ech ild and thech ild restra int sys‐
te m toget her weigh mor eth an theper‐
missible gross mass of73 lb(33 kg),
use onlya LA TC H-type (ISOFIX )ch ild
re stra int system that sec ures thech ild
wit hth eve hicle seatbelt. #
Also secur eth ech ild restra int system
wit hth eTo pTe ther belt, ifav ailable. Alw
ayscom plywit hth einf ormation aboutthe
mass ofthech ild restra int system:
R inthemanuf acturer'sinstallation andoper at‐
ing instruct ions forth ech ild restra int system
used
R onalabel onthech ild restra int system, if
pr esent
Re gular lych eckth at theper missible gross mass
of thech ild and child restra int system isstill
com plied with.
When installing ach ild restra int system, obser ve
th efo llo wing:
0073 Alw
aysobser vethecor rect useof theseats
and consider their suit ability foratt aching a
ch ild restra int system.
0073 Alw
ayscom plywithth emanuf acturer's
ins tallation andoper atingins truct ions for
th ech ild restra int system used.
0073 Mak
esur eth at thech ild's feet do notto uc h
th efront seat. Ifneces sary,mo vethefront
seat slightl yfo rw ards. ®
When installing aLA TC H-type (ISOFIX )
ch ild restra int system, also obser vethefo llo w‐
ing:
0073 When
usingaGr oup 0/0+ babycar seat
and aGr oup Ire ar wa rd-faci ng child
re stra int system onare ar seat :adju st
th efront seat sothat theseat does not
to uc hth ech ild restra int system.
0073 When
usingaGr oup Ifo rw ard-f acin g
ch ild restra int system: remo vethehead
re stra int from there spectiv eseat, ifpossi‐
ble. Inaddition, thebac kres tof thech ild
re stra int system mus tlie asflat as poss ible
ag ains tth ebac kres tof theve hicle seat.
Af terth ech ild restra int system has been
re mo ved, replace thehead restra int immed i‐
at elyand adjus tall head restra int scor ‐
re ctly .
0073 When
using ach ild restra int system on
a seat ontheth ird ro w of sea ts:adj ust
th efront seat sothat itdoes notto uc hth e
ch ild restra int system and movetheseat
bac kres tof thefront seat intoan upr ight
position ifneces sary. 56
Occupant safety

0073
Fo
rcer tain child restra int systems inwe ight
gr oup IIor III,th er ema ybe restrictions on
th emaximum sizesetting, e.g. due topossi‐
ble con tact with thero of.
0073 The
child restra int system mus tno tbe
ins talled between thero of and theseat
cushion and/orbeinstalled facing the
wr ong direct ion. Wher eposs ible, adjus tth e
seat cushion inclination accordingly.
0073 The
child restra int system mus tno tbe put
under stra in by thehead restra int .Ad jus t
th ehead restra int sacc ording ly. #
Beforeev eryjour ney,mak esur eth at the
LA TC H-type (ISOFIX )ch ild restra int system is
cor rectl yeng aged inbo th mounting brac kets
in theve hicle.
* NO
TEDama getotheseat beltforth e
cent ersea tdu ring installation ofthe
ch ild restra int system #
Mak esur eth at theseat beltisno ttra p‐
ped. Re
ar ben chseat (second row of sea ts): #
Attach theLA TC H-type (ISOFIX )ch ild
re stra int system toboth LATC H-type (ISOFIX )
mou nting brac kets 1. Ve
hicl eswith ath ird ro w of sea ts: #
Attach theLA TC H-type (ISOFIX )ch ild
re stra int system toboth LATC H-type (ISOFIX )
mou nting brac kets 1. Occu
pant safety 57

Secur
ingaTo pTe ther &
WARNIN GRisk ofinju ryor deat hif th e
re ar seat backres ts areno tloc kedaf te r
ins talling TopTe ther belts
The rear seat backres ts ma yfo ld forw ards
when drivin g.
In this case, child restra int systems mayno
long erper form their intended protect ive
func tion.Ad dition alinj uries mayalso be
caused. #
Alw aysloc kre ar seat backres ts afte r
ins talling TopTe ther belts. #
Payatt ention totheloc kve rificati on
indi cator. Ensur
eth at there ar seat backres tis eng aged. To
do so, pull forc efull yon theseat backres t.
¯ Ifth ech ild restra int system iseq uipped
wit haTo pTe ther belt :
The risk ofinjur ycan bereduced byaTo p
Te ther.The TopTe ther belt enables an
additional connect ionbetween thech ild re
stra int system attached withLA TC H-
type (ISOFIX )and theve hicle.
The TopTe ther anc horages forth esecon drow of
seats arelocat edon thebac kof theseat back‐
re st.Fo rth eth ird row ofseats, usetheTo p
Te ther anc horageon thebac kof theseat back‐
re st. Second
rowofseats #
Ifnecessar y,slide head restra int 1 upw ards
(/ page98). #
Installth eLA TC H-type (ISOFIX )ch ild restra int
sy stem withTo pTe ther.Com plywit hth e
ch ild restra int system manuf acturer'sinstal‐
lation instruct ions . #
Guide TopTe ther belt 4under head
re stra int 1 between thetw ohead restra int
bar s. #
Hook TopTe ther hook 3intoTo pTe ther
anc horage2 without twisting. 58
Occupant safety