lock MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owners Manual

1
V Operates the memory function →
118
2 Adjusts the seats electrically →
109
3 w Switches the seat heating on/o. →
113
4 008E Switches the seat ventilation on/o. →
114
5 0062 Opens/closes there ar leT side wind ow→
95
6 0062 Opens/closes the leT side window →
95
7 00C9 Operates the outside mir rors →
153
8 008C Opens/closes theta ilgate →
89
9 0062 Opens/closes theright side wind ow →
95
A 0062 Opens/closes there ar right side wind ow→
95
B S Child saf ety lock forth ere ar side win-
do ws →
80 C
Opens the door →
85
D ßÜLoc ks/unloc kstheve hicle →
85
E Adjusts the head restraints →
111
F Con/gures the seat settings →
112
G Adjusts the seat backrest inclination →
108
H Adjusts the seat height →
108
I Adjusts the seat cushion inclination →
108
J Adjusts the seat fore -and-aT position →
108
K Adjusts the seat cushion length →
108 At
a glance – Door operating unit and seat adjustment
19
19

Speeding up activ
Speeding up activ
ation
ation #
Switch theve hicle o. and lock it. #
ATer about 2 minutes, unlock theve hicle and
switch on theve hicle.
The on-demand feature has been activated.
Fo r some features, a noti/cation also appears
in theve hicle's multimedia system.
If th e activation was not successful, repeat the
process. Oper
Oper
ating safe
ating safe ty
ty &
W
WARNING
ARNING Risk of inju rydue tomalfunc-
tions or system failure
In order toavo id malfunctions or system fail-
ures: #
Always ha vethe speci/ed service/main-
te nance workas well as any necessary
re pairs car ried out at a quali/ed special-
ist workshop. &
W
WARNING
ARNING Risk of accident or injury due
to improper modi/cations toelectronic
components
Modi/cations toelectronic components, their
soTware or wiring can impair their functional-
ity and/or the functionality of other networ ked
components or saf ety-re leva nt systems.
This can endanger theve hicle's operating
saf ety. #
You must not tamp er with wiring, elec-
tronic components, or their soTware. #
Always ha veworkon electrical and elec-
tronic devices car ried out at a quali/ed
specialist workshop. If
yo u modify the on-board electronics, thege n-
eral ope rating permit is rendered in valid.
Obser vethe "On-board electronics" section in
"Technical data". &
W
WARNING
ARNING Risk of /re due to0ammable
materials on hot parts of theex haust sys-
tem
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact with
hot parts of theex haust system. #
When driving on unpa vedro ads or o.-
ro ad, regula rly ch eck theve hicle under-
side. #
Remo vetrapped plants or other 0amma-
ble material, in particular. #
Ifth ere is damage, consult a quali/ed
specialist workshop immediatel y. General no
tes
27
27

W
W
ir
ireless applications in t
eless applications in t he v
he vehicle
ehicle T
T
ec
ec hnology Fr
hnology Freq
eq uency r
uency r angeT r
ang eT ransmission output/magne
ansmission output/magne tic
tic/eld
/eld s
strtr eng th
ength
Re mo teKeyless Entr y2 0 kHz (9–90 kHz) ≤ 72 dBμA/m at 10m
Wi reless Powe rTr ansmission 105 kHz (90–119 kHz)≤ 42 dBμA/m at 10m
Re mo teKeyless Entr y1 20 kHz (119–135 kHz) ≤ 42 dBμA/m at 10m
Wi reless Powe rTr ansmission 127 kHz (119–135 kHz)≤ 66 dBμA/m at 10m withthe magnetic /eld
strength le vel decreasing 3dB/oct aveabove119
kHz
Ne ar-/eld communication 13.553–13.567 MHz≤ 42 dBμA/m at 10m
Re mo teKeyless Entr y,Garage Door Opener, Tire
Pressure Monitoring 433 MHz (433.05–434.79 MHz)
≤ 10 mW ERP
Block Heater Remo teControl, Garage Door
Opener 868 MHz (868.0–868.6 MHz)≤
25 mW ERP
Block Heater Remo teControl, Garage Door
Opener 869 MHz (868.7–869.2 MHz)≤
25 mW ERP
Blue toot h, Kleer, RLAN, wireless Headphone s2.4 GHz ISM band (2400–2483.5 MHz) ≤ 100 mW EIRP
RLAN 5.1 GHz UNII-1 (5150–5250 MHz)≤ 25 mW EIRP32
32
General no
tes

5N0 012
615C
5N0 012
615F
9P1 012
615A
9P1 012
615B
1EA 012
615
8P0 012
615A
8P0 012
615E
7P0 012
617A4L0 012
615
760 012
615
A000583
5001
6898012
3220901
2
8888002
695 meet all
the essential requ irements forth efo llo w-
ing guidelines: (4)
2006/42/EC (EC Machinery Directive)
2014/30/EU (EC EMC Directive)
2000/14/EC (EC Outdoor Noise Directive)
Pe rson authorised tocompile thete ch nical docu-
ments referred toin Annex VII A of Directive
2006/42/EC:
Aircom Automotive Sp. z o.o. Sp. k.
Dominik Gschwender (5)
ul. Fabryc zna 20B
55-080 Pietrzyk owice
Po land Applied harmonised standards: (6)
DIN EN 12100:2012 / DIN EN ISO 3744:1995
DIN EN 60204-1:2006 / DIN EN ISO 2151:2009
DIN EN 60335-1:2012 / DIN EN ISO 4871:2009
DIN EN 1012-1:2011 / DIN EN ISO13732-1:2008
DIN EN 55012:2010 / DIN EN 61000-6-3:2011
DIN EN 61000-6-1:2016
Other
tech nical standa rds and speci/cations
applied:
none (7)
Pietrzyk owice, 23.04.2019
[Signature, D. Gschwender]
Dominik Gschwender, general management
No te:th is declaration loses its validity if tech nical
or ope rational changes are made without the con-
sent of the manufacturer. Diagnos Diagnostics 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. 38
38
Gene
ral no tes

*
N
NO
OTE
TE Damage caused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat position
may result in damage tothe seat and/or the
object. #
Stow objects in a suitable place. R
R
e
ev
ver
er sing t
sing t he PRE-S
he PRE-S AFE
AFE®
®
syst
syst em measur
em measur es
es If an accident did not occur,
the pre-em ptive
measures that we re ta ken are reve rsed.
Yo u will need toper form certain settings yourself. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. F
F
unction of PRE-S
unction of PRE-S AFE
AFE ®
®
PL
PL US (anticipat
US (anticipat or
ory occu-
y occu-
pant pr ot
pant pr otection plus)
ection plus) PRE-SAFE
®
PLUS can de tect cer tain impacts, par-
ticular lyan imminent rear impact, and take pre-
em ptive measures toprotect theve hicle occu- pants. These measures cann
otnecessarily pre-
ve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher 0ashing frequency.
R Increasing brake pressure when theve hicle is
stationar y.This brake application is cancelled
automatically when theve hicle pulls away.
If an accident did not occur, the pre-em ptive
measures that we re ta ken are reve rsed.
Syst
Syst em limits
em limits
The system will not initiate any action in thefo l-
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact The system will not initiate any braking application
in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space while
using Active Parking Assist A A
ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident
Depending on the type and se verity of the acci-
dent, and depending on theve hicle's equipment,
th efo llowing measures can be implemented, for
ex ample:
R automatic braking (post-collision brake)
R activating the hazard warning lights
R triggering an automatic emer gency call
(/ page 325)
R switching o. the engine
To start theve hicle again, switch theve hicle
o. and on once more (/ page 169). Depend-
ing on the type and se verity of the accident,
yo u may no longer be able tostart theve hicle.
R switching o. the fuel supply 60
60
Occupant saf
ety

R
v
vehicles wit
ehicles wit h h
h hybr
ybr id dr
id dr iv
ive:
e: switching o. the
hy brid system and high-voltage on-board elec-
trical system
R unlocking theve hicle doors
R lowe ring the side windo ws
R displaying the emer gency guide in the multi-
media system display
R switching on the interior lighting
F
F unction of t
unction of t he pos
he post-collision brt-collision br ake
ake
Depending on the accident situation, the post-col-
lision brake can minimise the se verity of a fur ther
collision or evenavo id it.
If an accident is de tected, the post-collision brake
can implement automatic braking. When theve hi-
cle has come toa standstill, the electric parking
brake is automatically applied.
The driver can cancel automatic braking bytaking
th efo llowing actions:
R braking more strongly than automatic braking
R fully depressing the accelerator pedal with
fo rce Saf Saf
el
ely tr
y tr anspor
anspor ting c
ting childr
hildren in t
en in t he v
he vehicle
ehicle Alw
ay
Alw ays observ
s observ e when c
e when c hildr
hildren ar
en ar e trav
e tr avelling in t
elling in t he
he
v
v ehicle
ehicle %
Also strictly obser vethe saf ety no tesfo rthe
speci/c situation. In this wa yyo u can recog-
nise po tential risks and avoid dangers if chil-
dren are tr avelling in theve hicle
(/ page 62).
Be dilig
Be dilig ent
ent
Bear in mind that negligence when securing a
ch ild in thech ild restraint system ma y haveseri-
ous conse quences. Alw ays be dili gent in securing
a ch ild carefully before every journe y.
Ne ver allow babies and children totrave l sitting
on the lap of ano ther vehicle occupant.
To impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obser vethefo l-
lowing information:
R Always secure thech ild in a child restraint sys-
te m suitable forth is Mercedes-Benz vehicle.
R The child restraint system must be appropria te
to the age, weight and size of thech ild. R
The vehicle seat must be suitable for /tting a
ch ild restraint system (/ page 66).
Ac cident statistics show that children secured on
th ere ar seats are generally sa ferth an children
secured on the front seats. Forth is reason,
Mercedes-Benz st rongly advises that you /t a
ch ild restraint system toare ar seat.
The g The g ener
eneric t
ic ter
erm c
m c hild r
hild r es
estr
traint syst
aint syst em
em
The generic term child restraint system is used in
th is Owner's Manual. A child restraint system is,
fo rex ample:
R a baby car seat
R are ar wa rd-facing child seat
R afo rw ard-facing child seat
R ach ild booster seat with a backrest and seat
belt guide
Mercedes-Benz recommends using a child
booster seat with a backrest.
The child restraint system must be appropria te to
th e age, weight and size of thech ild. Occupant saf
ety
61 61

Onl
Onl
y use c
y use c hild r
hild res
estrtraint syst
aint syst ems whic
ems whic h ar
h are in
e in
pr
pr oper w
oper w or
orking condition
king condition &
W
WARNING
ARNING Risk of injury or death caused
by the use of damaged child restraint sys-
te ms
Child restraint systems or their reta ining sys-
te ms that ha vebeen subjected tostress in an
accident ma y not be able toper form their
intended pr otective function.
It may be the case that thech ild cannot be
proper ly restrained. #
Always immediately replace child
re straint systems that ha vebeen dam-
aged or in volved in an accident. #
Have the securing systems forth ech ild
re straint systems checked at a quali/ed
specialist workshop before ins talling a
ch ild restraint system again. A
A
v
void dir
oid dir ect sunlight
ect sunlight &
W
WARNING
ARNING Risk of bu rns when thech ild
seat is exposed todirect sunlight
If th ech ild restraint system is exposed to
direct sunlight or heat, parts could heat up.
Children could su.er burns from these parts,
particular lyon me tallic parts of thech ild
re straint system. #
Always make sure that thech ild restraint
system is not exposed todirect sunlight. #
Protect thech ild restraint system wi th a
blank et,fo rex ample. #
Ifth ech ild restraint system has been
ex posed todirect sunlight, allow it to
cool before securing a child into it. #
Never lea vechildren unattended in the
ve hicle. Observ Observ
e when st
e when st opping or par
opping or par king
king &
W
WARNING
ARNING Risk of accident and injury due
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. 64
64
Occupant saf
ety

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 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:
0073 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 68)
or
i‑Size child seat securing system
(/ page 69)
0073 Always comply with the manufacturer's
installation and operating instructions forthe
ch ild restraint system used.
0073 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:
0073 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 70
70
Occupant saf
ety

*
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. #
Attach the ISOFIX or i‑Size child restraint sys-
te m to both mounting brac kets in theve hicle. F
F
ast
ast ening a T
ening a T opTet
op Tether
her &
W
WARNING
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. #
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. 72 72
Occupant saf
ety

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.
When
When /tting /tting a belt-secur
a belt-secur ed c
ed child r
hild r es
estr
traint sy st
aint syst em,
em,
obse rv
observ e t
e the f
he f ollo
ollowing:
wing:
0073 Always comply with the manufacturer's
installation and operating inst ructions forthe
ch ild restraint system used.
0073 For a child restraint system in the "Universal"
or "Semi-Universal" categor y,make sure that
th e system has been appr ovedfo rth eve hicle
seat. Obser
vethe no tes under "Suitability of seats
fo r attaching belt-secured child restraint sys-
te ms" (/ page 73).
0073 When using a w
When using a w eight cat
eight categor
egory 0/0+ bab
y 0/0+ bab y
y
car seat and a w
car seat and a w eight cat
eight categor
egory I r
y I rearw
earw ar
ard-
d-
f
f acing c
acing c hild r
hild res
estrtraint syst
aint syst em on a r
em on a r ear seat:
ear seat:
adjust the front seat so that the seat does
not touch thech ild restraint system.
0073 When using a w
When using a w eight cat
eight categor
egory I f
y I forw
orw ar
ar d-
d-
f
f acing c
acing c hild r
hild res
estr
traint sy st
aint syst em:
em:remo vethe
head restraint from there specti veseat, if
possible.
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.
0073 The backrest of thefo rw ard-facing child
re straint system must, as far as possible, be
re sting on the seat backrest of there ar seat.
0073 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 category II or III. 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.
0073 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.
0073 Thechild restraint system must not be put
under strain bythe head restraint. Adjust the
head restraints as appropria te.
0073 Make sure that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards. #
Installth ech ild restraint system.
The entire base of thech ild restraint system
must al ways rest on the seat sur face of the
re ar seat. #
Always make sure that the shoulder belt strap
is cor rectly routed from the seat belt outlet of
th eve hicle tothe shoulder belt guide on the
ch ild restraint system.
The shoulder belt strap must be routed
fo rw ard from the seat belt outlet. Occupant saf
ety
75 75