2021 MERCEDES-BENZ GLB SUV Owners Manual

°
i-Sizechild seat securing system
(/ page 66)
¯ Also secure TopTe ther if present
(/ page 69).
Third row of seats, prefer red securing system:
® ISOFIX child seat securing system
(/ page 64)
¯ Also secure TopTe ther if present
(/ page 69).
LeT/ right rear seat (second and third seat row) –
alternative securing system:
7 Vehicle seat belt (/ page 70)
F F r
ront passeng
ont passeng er seat
er seat
Securing system:
7 Vehicle seat belt (/ page 70)
Be sure toobser ve:
R Ifth e front passenger seat is occupied,
ensure, bo thbefore and during the journe y,
th at the status of the front passenger airbag is
cor rect forth e cur rent situation (/ page 52).R
Notes on automatic front passen ger airbag
shuto. (/ page 51).
Centr
Centr e r
e r ear seat (second seat ro
ear seat (second seat row)
w)
Securing system:
7 Vehicle seat belt (/ page 70) App
rov
Approv al cat
al categor
egories f
ies for c
or child r
hild r es
estr traint syst
aint syst ems
ems Onl
Onl
y use app rov
y use appr oved ced c hild r
hild r es
estrtraint syst
aint syst ems
ems
Only child restraint systems that meet thefo llo w-
ing UNECE standards are permitted for use in the
ve hicle:
R UN-R44
R UN-R129 (i-Size child restraint systems)
Iden ti/cation
Identi/cation on t
on the c
he c hild r
hild r es
estr
traint sy st
aint syst em
em
In fo rm ation about the appr oval catego ry,we ight
category and appr oval number, forex ample, is on
th e appr oval label on thech ild restraint system.
There ma y be further information such as the ISO-
FIX size categories, depending on the appr oval
catego ryofthech ild restraint system. Approv
Approv al cat
al categor
egories in accor
ies in accor dance wit
dance with UN-R44
h UN-R44 Example of an appro
val label
R U
Univniv er
ersal:
sal: child restraint systems in the "Uni-
ve rsal" catego ryare appr ovedfo r installation
in vehicles. They can be used, in accordance
with overviews ofthe suitability of seats for
securing child restraint systems, on seats
labelled U, UF or IU F.62
62
Occupant saf
ety

The identi/ca
tion IUFrefers to ISOFIX child
re straint systems in the "Universal" categor y.
These child restraint systems must also be
secu red using TopTe ther or support points.
R Semi-U
Semi-U niv
niver
ersal:
sal: child restraint systems in the
"Semi-Universal" category may only be used if
th eve hicle and vehicle seat are lis ted in the
ch ild restraint system manufactu rer's vehicle
model list.
R V
V ehicle-speci/c:
ehicle-speci/c: child restraint systems in the
"vehicle-speci/c" category may only be used if
th eve hicle and vehicle seat are lis ted in the
ch ild restraint system manufactu rer's vehicle
model list. App
rov
Approv al cat
al categor
egories in accor
ies in accor dance wit
dance with UN-R129
h UN-R129 Example of an app
rova l label
R i‑Size:
i‑Size: child restraint systems in the "i‑Size"
category are appr ovedfo r installation in vehi-
cles with i‑Size mounting brac kets. They can
be used, in accordance with overviews ofthe
suitability of seats for securing child restraint
systems, on seats labelled i‑ U.The identi/ca
tion i‑Urefers to i‑Size child
re straint systems in the "Universal" categor y.
These child restraint systems must also be
secu red using TopTe ther or support points.
Observ
Observ e t
e the suit
he suit ability of v
ability of v ehicle seats
ehicle seats
Depending on the appr oval catego ry,th ere are
fo rw ard-facing and rear wa rd-facing child restraint
systems. Their use can be restric tedfo r cer tain
ve hicle seats:
R Suitability of seats for attaching ISOFIX child
re straint systems (/ page 64)
R Suitability of seats for securing i‑Size child
re straint systems (/ page 66).
R Suitability of seats for attaching belt-secured
ch ild restraint systems (/ page 70) Occupant saf
ety
63
63

F
F
itting an ISOFIX or i-Size c
itting an ISOFIX or i-Size c hild r
hild res
estrtraint syst
aint syst em
em
on t
on t he
heleT
leT and r
and r ight r
ight r ear seats
ear seats Ov
Ov
er
ervie
vie w of suit
w of suit ability of t
ability of t he seats f
he seats for att
or attac
aching
hing
ISOFIX c
ISOFIX c hild r
hild res
estrtraint syst
aint syst ems
ems
ISOFIX is a standardised securing system for spe-
cially designed child restraint systems.
® The symbol indicates seats suitable for
attaching an ISOFIX child restraint system
in acco rdance with UN R44 (/ page 62).
At tach only child restraint systems that are
appr oved in accordance with UN R44 as
per thefo llowing ISOFIX tables.
Carr
Carr y co
y cot f
t for second and t
or second and t hir
hirdrow
d row s of seats
s of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r LeT/r
ight ightr
rear seat
ear seat
F – ISO/L1 X
G – ISO/L2 X
X Not suitable for an ISOFIX child restraint system in this we ight
gr oup and/or size class. W W
eight gr
eight group 0 (up t
oup 0 (up t o 10 k
o 10 kg and up tg and up t o appro
o approx. 6
x. 6
mont
mont hs) f
hs) for second and t
or second and t hir
hir drow
d row s of seats
s of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
E – ISO/R1 IL IL Sui table for ISOFIX child restraint systems acco rding totheta ble
in "Overview of there commended child restraint systems", or if the
ve hicle and the seat are listed on thech ild restraint system manu-
fa cturer's vehicle model list. W
W
eight gr
eight group 0+ (up t
oup 0+ (up t o 13 k
o 13 kg and up tg and up t o appro
o approx.
x.
15 mont
15 mont hs) f
hs) for second ro
or second row of seats
w of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r LeT/r
ight ightr
rear seat
ear seat
E – ISO/R1 IL
D – ISO/R2,
ISO/R2X IL Size class – Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
C – ISO/R3 IL (1)
IL Sui table for ISOFIX child restraint systems acco rding totheta ble
in "Overview of there commended child restraint systems", or if the
ve hicle and the seat are listed on thech ild restraint system manu-
fa cturer's vehicle model list.
(1) When using a child rest raint system of size class (ISO/R3),
mo vethe front seat into the highest position. Make sure that the
seat backrest of thefront seat does not rest against thech ild
re straint system. W
W
eight gr
eight group 0+ (up t
oup 0+ (up t o 13 k
o 13 kg and up tg and up t o appro
o approx.
x.
15 mont
15 mont hs) f
hs) for t
or thir
hirdro
d ro w of seats
w of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
E – ISO/R1 IL
D – ISO/R2,
ISO/R2X X64 64
Occupant saf
ety

Size class –
Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
C – ISO/ R3 X
IL Suitable for ISOFIX child rest raint systems according totheta ble
in "Overview of there commended child restraint systems", or if the
ve hicle and the seat are lis ted on thech ild rest raint system manu-
fa cturer's vehicle model list.
X Not suitable for an ISOFIX child restraint system in this we ight
gr oup and/or size class. W
W
eight gr
eight group 1 (9–18 k
oup 1 (9–18 kg and appro g and approx. 9 mont
x. 9 months
hs
up t
up t o 4 y
o 4 y ear
ear s) f
s) for second ro
or second row of seats
w of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
D – ISO/R2,
ISO/R2X IL
C – ISO/R3 IL (1)
B – ISO/F2 IUF
B1 – ISO/F2X IUF Size class – Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
A – ISO/F3 IUF IL Sui table for ISOFIX child restraint systems acco rding totheta ble
in "Overview of there commended child restraint systems", or if the
ve hicle and the seat are listed on thech ild restraint system manu-
fa cturer's vehicle model list.
IUF Suitable forfo rw ard-facing ISOFIX child restraint systems of the
"Universal" category in this we ight group.
(1) When using a child restraint system of size class (ISO/R3),
mo vethe front seat into the highest position. Make sure thatth e
seat backrest of the front seat does not rest against thech ild
re straint system. W
W
eight gr
eight group 1 (9–18 k
oup 1 (9–18 kg and appro g and approx. 9 mont
x. 9 months
hs
up t
up t o 4 y
o 4 y ear
ears) f
s) for t
or t hir
hirdro
d ro w of seats
w of seats Size class –
Size class –
Eq Eq
uipment
uipment LeT/r
LeT/r
ight
ightr
rear seat
ear seat
D – ISO/R2,
ISO/R2X X
C – ISO/R3 X
B – ISO/F2 IUF
B1 – ISO/F2X IUF
A – ISO/F3 IUF X Not suitable for an ISOFIX child rest raint system in this we ight
gro up and/or size class.
IUF Suitable forfo rw ard-facing ISOFIX child restraint systems of the
"Universal" category in this we ight group. Occupant saf
ety
65 65

Ov
Ov
er
ervie
vie w of suit
w of suit ability of t
ability of t he seats f
he seats for att
or attac
aching
hing
i‑Size c
i‑Size c hild r
hild res
estrtraint syst
aint syst ems
ems
i‑Size is a standardised securing system for spe-
cially designed child restraint systems.
° The symbol indicates seats suitable for
attaching an i‑Size child restraint system in
acco rdance with UN R129 (/ page 62).
Child restraint systems that are permitted
in accordance with UN R44 as per the ISO-
FIX tables (/ page 64) or UN R129 as per
th efo llowing i‑Size tables may be attached.
i‑Size c
i‑Size c hild r
hild res
estrtraint syst
aint syst ems (ISO/R2, ISO/F2X,
ems (ISO/R2, ISO/F2X,
ISO/B2, ISO/B3)
ISO/B2, ISO/B3) F
F
r
ront passeng
ont passeng er seat
er seatLeT/r
LeT/right
ightr
rear seat
ear seat
(second ro
(second row of seats
w of seats
onl
onl y)
y)
Xi ‑U
X Not suitable for an i-Size child
re straint system in the "Univer-
sal" categor y. i-U Suitable
forfo rw ard-facing
and rear wa rd-facing i-Size child
re straint systems in the "Univer-
sal" categor y. F
F
itting t
itting t he ISOFIX or i‑Size c
he ISOFIX or i‑Size c hild r
hild res
estrtraint syst
aint syst em
em
on t
on t he
heleT
leT and r
and r ight r
ight r ear seats
ear seats &
W
WARNING
ARNING Risk of accident if there ar
ben chseat, rear seat and seat backrest
are not engaged
The rear ben chseat, rear seat and seat bac k-
re st ma yfo ld forw ards, even while theve hicle
is in motion.
R As a result, theve hicle occupant will be
pressed into the seat belt with increased
fo rc e. The seat belt will not be able topro-
te ct as intended and could cause addi-
tional injur y.
R Objects or loads in the boot or load com-
partment cannot be restrained bythe seat
backrest. #
Make sure that there ar ben chseat, the
re ar seat and the seat backrest are
engaged before every trip. If
th ere ar seat backrest is not engaged and
loc ked in place, there d lock veri/cation indicator
will be visible. &
W
WARNING
ARNING Risk of inju ryor death if the
permissible gross mass of thech ild and
ch ild restraint system toge ther is excee-
ded.
To o much load may be placed on the ISOFIX
or i‑Size child restraint systems and thech ild
may not be restrained co rrectly in theev ent of
an accident, forex ample. #
Ifth ech ild and thech ild restraint system
to get her weigh more than 33 kg, only
use an ISOFIX or i‑Size child restraint
system wi thwhich thech ild is secured
with theve hicle seat belt. #
Also secure thech ild restraint system
wi th th eTo pTe ther belt, if available. Alw
ays comply with the information about the
mass of thech ild restraint system:
R inthe manufacturer's installation and operat-
ing inst ructions forth ech ild restraint system
used
R on a label on thech ild restraint system, if
present 66
66
Occupant sa
fety

Re
gula rly ch eck that the permissible gross mass
of thech ild and child restraint system is still com-
plied wi th.
When /tting a child restraint system, obse rvethe
fo llowing:
O Always obser vethe cor rect use of the seats
and consider their suitability for attaching a
ch ild restraint system.
ISOFIX child seat securing system
(/ page 64)
or
i‑Size child seat securing system
(/ page 66)
O Always comply with the manufacturer's
installation and operating inst ructions forthe
ch ild restraint system used.
O Makesure that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards.
® When /tting an ISOFIX child restraint sys-
te m, also obser vethefo llowing:
O When using a bab
When using a bab y car seat in w y car seat in weightgr
eight group
oup
0/0+ and a r
0/0+ and a r earw
earwar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint
aint syst
syst
em in w
em in w eightgr
eight group 1 on a r
oup 1 on a r ear seat
ear seat: :
adjust the front seat so that the seat does
not touch thech ild restraint system.
O When using a f
When using a f orw
orwar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint
aint
syst
syst em in w
em in w eightgr
eight group 1:
oup 1: remo vethe head
re straint from there specti veseat, if possible.
In addition, the backrest of thech ild restraint
system must lie as 0at as possible again st
th e backrest of theve hicle seat.
ATer thech ild restraint system has been
re mo ved, replace the head restraint immedi-
atel y and adjust all head restraints co rrectl y.
O When using a c
When using a c hild r
hild res
estrtraint syst
aint syst em on a
em on a
seat on t
seat on t he t
he thir
hir dro
d ro w of seats:
w of seats: adjustthe
front seat so that it does not touch thech ild
re straint system and mo vethe seat backrest
of the front seat into an upright position if
necessar y.
O Ifth e head restraint of thech ild seat cannot
be fully extended when it is installed in the
ve hicle, this will result in restrictions on the
maximum size setting forch ild restraint sys-
te ms in weight group 2 or 3. Contact with
thero of when the head
re straint is ful lyex tended and loc ked in place
will not result in any restrictions on use.
O Thechild restraint system must not be put
under strain between thero of and the seat
cushion and/or be /t tedfacing the wrong
direction. Where possible, adjust the seat
cushion inclination accordingl y.
O Thechild restraint system must not be put
under strain bythe head restraint. Adjust the
head restraints as appropria te.
° When /tting an i‑Size child restraint system,
also obse rveth efo llowing:
O When using a r
When using a r earw
earwar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint
aint
syst
syst em:
em: adjust the front seat so that it does
not touch thech ild restraint system.
O When using a f
When using a f orw
orwar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint
aint
syst
syst em:
em: remo vethe head restraint from the
re specti veseat, if possible. In addition, the
backrest of thech ild restraint system must
lie as 0at as possible again stthe backrest of
th eve hicle seat. Occupant saf
ety
67
67

ATer
thech ild restraint system has been
re mo ved, replace the head restraint immedi-
atel y and adjust all head restraints co rrectl y. #
Before every journe y,make sure that the ISO-
FIX child restraint system or the i‑Size child
re straint system is engaged co rrectly in bo th
mounting brac kets in theve hicle.
* N
NO OTE
TE Damage tothe seat belt forthe
cent reseat during ins tallation of thech ild
re straint system #
Makesure that the seat belt is not trap-
ped. R
R
ear benc
ear benc h seat (second ro
h seat (second row of seats):
w of seats): 1
ISOFIX mounting brac ket
2 i‑Size mounting brac ket #
Attach the ISOFIX or i‑Size child restraint sys-
te m to both mounting brac kets in theve hicle. V V
ehicles wit ehicles wit h a t
h a thir
hirdro
d ro w of seats:
w of seats: #
Attach the ISOFIX child restraint system to
bo th ISOFIX mounting brac kets 1. 68
68
Occupant saf
ety

F
F
ast
ast ening a T
ening a T opTet
op Tether
her &
W
W ARNING
ARNING Risk of injury or death if the
re ar seat backrests are not loc ked aTer
To pTe ther belts are /t ted
The rear seat backrests may fold forw ards
when you are driving.
As a result, child restraint systems will no lon-
ge r be able toper form their intended pr otec-
tive function. This may also cause additional
injuries. #
Always lock rear seat backrests aTer /t-
ting TopTe ther belts. #
Obser vethe lock veri/cation indicator. If
th ere ar seat backrest is not engaged and
loc ked in place, there d lock veri/cation indicator
will be visible.
¯ Ifth ech ild restraint system is equipped
wi th aTo pTe ther belt:
The risk of injury may be reduced byTo p
Te ther. The TopTe ther belt enables an
additional connection between thech ild re
straint system at tach ed with ISOFIX or
i‑Size and theve hicle.
The TopTe ther anchorages forth e second row of
seats are located on there ar side of the two outer
re ar seats on the second row of seats. Forthe
th ird row of seats, use theTo pTe ther anchorage
on there ar side of the seat backrest on theth ird
ro w of seats. Second
row of seats #
If necessar y,slide head restraint 1upwa rds
( / page 112). #
Fitth e ISOFIX or i‑Size child restraint system
wi th TopTe ther. In doing so, comply with the
ch ild restraint system manufactu rer's installa-
tion inst ructions. Occupant saf
ety
69 69