warning MERCEDES-BENZ B-CLASS HATCHBACK 2021 Repair Manual

To
enlar gethe load compartment, you can fold
th e seat backrest on the front passenger side for-
wa rds.
R
R eq
eq uir
uir ements:
ements:
R The following seats are unoccupied:
- there ar seat behind the seat backrest that
is folded forw ards on the front passenger
side
- there ar cent reseat #
T
To f
o f old f
old f orw
orwar
ards:
ds: pull release handle 1and
fo ld the seat backrest fully forw ards onto the
sitting sur face until it engages. #
T
T o f
o f old bac
old bac k:
k:pull release handle 1and piv ot
th e seat backrest backwards until it engages. Thr
Thr
ough-loading f
ough-loading f eatur
eature in t
e in the r
he rear benc
ear benc h seat
h seat
(EASY
(EASY -PAC
-P AC K Quic
K Quic kf
kfold)
old) F F
olding t olding t he r
he rear seat bac
ear seat bac kr
kres
est f t forw
orw ar
ards
ds &
W
WARNI NG
ARNI NGRisk of becoming trapped when
adjusting the seats
When you adjust a seat, you may trap yourself
or a vehicle occupant. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. &
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 e seat backrests are not engaged and loc ked
in place, the lock veri/cation indicator will be red.
Alw ays ensu rethat all vehicle occupants ha ve
th eir seat belts fastened co rrectly and are sitting
proper ly.Pa rticular attention must be paid tochil-
dren.
If yo u no longer requ ire thefo lded-down seat
backrest as a loading area, fold the backrest back
into place. 122 122
Seats and st
owing

F
F
olding bac
olding bac k t
k the r
he r ear seat bac
ear seat bac kr
krest
est &
W
WARNING
ARNING Risk of becoming trapped when
adjusting the seats
When you adjust a seat, you may trap yourself
or a vehicle occupant. #
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. *
N
NOOTE
TE Damage caused bytrapping the
seat belt when folding back the seat bac k-
re st The seat belt could become trapped and
thus
be damaged when the seat backrest is folded
bac k. #
Make sure that the seat belt is not trap-
ped when folding back the seat backrest. #
Movethe driver's or front passenger seat for-
wa rds, if necessar y. #
Foldthe cor responding seat backrest 1back
until it engages.
LeT LeT and r
and r ight seat bac
ight seat bac kr
kres
es ts:
ts: ifth e seat bac k-
re st is not engaged and lo cked in place, the
re d lock veri/cation indicator 2will be visi-
ble.
Centr Centr e seat bac
e seat bac kr
krest:
est: ifth e seat backrest is
not engaged and loc ked in place, there d lock
ve ri/cation indicator 3will be visible. Loc Loc
king t king t he r
he release catc
elease catc h of t
h of the centr
he centr e r
e rear seat
ear seat
bac
bac kr
krest
est
R
R eq
equir uir ements:
ements:
R The leT and centre seat backrests are
en gage d and joined toget her.
Yo u can lock the centre seat backrest. The centre
seat backrest can then be folded forw ards only
to get her with the leT seat backrest. 124
124
Seats and st
owing

#
Foldthe centre and leT seat backrests for-
wa rds. #
T
To loc
o loc k or unloc
k or unloc k:
k:slide catch 1upwards or
down wards.
A
A djus
djusting t ting t he angle of t
he angle of t he r
he rear seat bac
ear seat bac kr
kres
es ts
ts &
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. Fo
rve hicles with longitudinally adjustable rear
seats, you can also adjust the angle of there ar
seat backrests. There are se veral possible de tent
positions.
* N
NO OTE
TE Damage tothere lease loops due to
th e attachment of objects The
release loops of the seat backrests in the
re ar may be damaged due tothe attachment
of objects. #
Only attach objects tothe tie-down eyes. #
Pull theright or leT release loop 2forw ards
in the direction of the ar row.
The cor responding seat backrest 1will be
unloc ked. #
Movethe seat backrest 1tothe desired
angle. #
Let go of there lease loop 2. #
Ensure that the seat backrest is engaged. Seats and st
owing
125
125

Load com
Load com
par
partment cov
tment cov er
er Inst
Inst
alling and r
alling and r emo
emoving t
ving t he load com
he load com par
partment
tment
cov
cov er
er &
W
WARNING
ARNING Risk of injury or death due to
poor lysecured objects
The load compartment co ver alone cannot
secure or restrain he avy objects, items of lug-
ga ge or heavy loads.
Yo u could be hit byan unsecured load, partic-
ular lyin theev ent of abrupt changes in direc-
tion, sudden braking or an accident. #
Always st owobjects in such a wayth at
th ey cannot be thro wn around. #
Secure objects, lug gage or loads against
slipping or tipping over,e.g. byusing
lashing material, even if you are using
th e load compartment co ver. Re
quirements:
R Do not load the load compartment co ver with
more than 2.5 kg. %
Please no tethat the load compartment co ver
must not be pushed fur ther upwards when the
ta ilgate is open. #
T
To r
o r emov
emov e:
e: pull hanger 3ontheta ilgate
upwards out of eyelet 1and unhook it. #
Swivel the load compartment co ver down-
wa rds and pull it evenly out of the guide rails on
theright and leT in the direction of ar row
4 . #
T
To inst
o inst all:
all:place the load compartment co ver
onto the guide rails on the leT and right. #
Slide the load compartment co verfo rw ards
ev enly in the guide rails on theright and leT
with bo thhands until it engages. #
Swivelth e load compartment co ver upwards
and hook hanger 3through eyelet 2. #
Pull hanger 3down wards into eyelet 1until
it engages.
% Please ensure that the load compartment
co ver is lying 0at on the guide rails on the
ri ght and leT when theta ilgate is closed. A
A
tt
tt ac
ac hing/r
hing/r emo
emoving t
ving t he par
he par titioning net
titioning net &
W
WARNING
ARNING Risk of injury or death due to
poor lysecured objects
The partitioning net alone cann otsecure or
re strain he avy objects, items of lug gage or
heavy loads. 126
126
Seats and st
owing

A
A
tt
tt ac
ac hing t
hing t he lugg
he lugg ag
age net
e net &
W
WARNING
ARNING Risk of injury due toobjects
being st owed incor rectly
If objects in theve hicle interior are st owed
incor rectl y,they can slide or be thro wn around
and hit vehicle occupants. In addition, cup
holders, open st owage spaces and mobile
phone brac kets cannot alw aysreta in all
objects they contain.
There is a risk of injur y,particular lyin the
eve nt of braking manoeuvres or abrupt
ch anges in direction. #
Always st owobjects so that they cannot
be thro wn around in such situations. #
Always make sure that objects do not
pr otru de from st owage spaces, lug gage
nets or st owage nets. #
Close the loc kable st owage spaces
before starting a jou rney. #
Stow and secure objects that are heavy,
hard, poin ted, sharp-edged, fragile or too
lar ge inthe load compartment. Obser
vethe no tes on loading theve hicle. &
W
WARNING
ARNING Risk of injury due toan open
load compartment 0oor
If yo u drive with the load compartment 0oor
open, objects could be 0ung around and hit
ve hicle occupants as a result. There is a risk
of injur y,particular lyin theev ent of sudden
braking or a sudden change in direction. #
Always close the load compartment 0oor
before a journe y. #
LiT the load compartment 0oor upwards using
th e handle, remo veit from the load compart-
ment and put it down on a clean sur face. #
Align luggage net 1on load compartment
0oor 3sothat st rap2 is positioned at han-
dle 4 and points upwards. 130
130
Seats and st
owing

A
A
djus
djus ting t
ting t he length
he length #
LiT load compartment 0oor 1(inthe bottom
position in theex ample) only slightly using
handle 3and pull it towa rdsyo u. #
Insert load compartment 0oor 1into rear /x-
tures 2. #
Fold load compartment 0oor 1down. A
A
tt
tt ac
ac hing a r
hing a r oof lugg
oof lugg ag
age r
e r ack
ack &
W
WARNING
ARNING Risk of accident due toexceed-
ing the maximum roof load
The vehicle cent reofgrav ity and the usual
driving characteristics as well as the steering
and braking characteristics alter.
If yo uex ceed the maximum roof load, the driv-
ing characteristics, as well as steering and
braking, will be greatly impaired. #
Neverex ceed the maximum roof load
and adjust your driving style. Yo
u will /nd information on the maximum roof
load in the "Technical data" section.
* N
NO OTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. *
N NOOTE
TE Vehicle damage from non-appr oved
ro of luggage racks The
vehicle could be damaged byroof luggage
ra ck sth at ha venot been tested and appro ved
fo r Mercedes-Benz. #
Use only roof luggage rack ste sted and
appro vedfo r Mercedes-Benz. #
Depending on theve hicle equipment,
ensu rethat the sliding sunroof can be
fully raised when thero of luggage rack is
/t ted. #
Depending on theve hicle equipment,
ensu rethat theta ilgate can be fully 132
132
Seats and st
owing

Example: 12 V soc
ket in the st owage compartment
in the front centre console #
Fold up soc ket cap 1. #
Inse rtthe plug of the device.
12 V soc ke
12 V soc ket in t
t in t he st ow
he st owag
age com
e com par
partment wit
tment wit h
h
cov
cov er:
er:ifyo u ha veconnected a device tothe 12 V
soc ket, lea vethe co ver of the st owage compart-
ment open. USB por USB por
t in t
t in the r
he rear passeng
ear passeng er com
er compar
partment
tment %
Depending on theve hicle equipment, the
design of the st owage compartment and thenumber of USB ports in
there ar cent recon-
sole may vary.
When theve hicle is switched on, you can charge a
USB device, such as a mobile phone, at USB ports
using a suitable charging cable. W W
ir
ireless c
eless c har
harging of t
ging of t he mobile phone and con-
he mobile phone and con-
nection wit
nection wit h t
h the e
he e xt
xter
er ior aer
ior aer ial
ial N
No
ot
tes on wir
es on wir elessl
elessly c
y char
har ging t
ging t he mobile phone
he mobile phone &
W
WARNING
ARNING Risk of injury due toobjects
being st owed incor rectly
If objects in theve hicle interior are st owed
incor rectl y,they can slide or be thro wn around
and hit vehicle occupants. In addition, cup
holders, open st owage spaces and mobile
phone recep tacles cannot alw aysreta in all
objects within.
There is a risk of injur y,particular lyin the
eve nt of sudden braking or a sudden change
in direction. #
Always st owobjects so that they cann ot
be thro wn around in such situations. #
Always make sure that objects do not
pr otru de from st owage spaces, lug gage
nets or st owage nets. #
Close the loc kable st owage spaces
before starting a jou rney. #
Always st owand secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot/load compartment. Obser
vethe no tes on loading theve hicle. &
W WARNING ARNING Risk of /re from placing objects
in the mobile phone st owage compart-
ment
Placing other objects in the mobile phone
st ow age compartment could constitute a /re
hazard. #
Apart from a mobile phone, do not place
any other objects in the mobile phone
st ow age compartment, especially those
made of me tal. 134 134
Seats and st
owing

#
Place the mobile phone as close tothe centre
of the mar ked sur face on mat 1as possible
with the display facing upwards.
When a message is shown in the multimedia
system, the mobile phone is being charge d.
Malfunctions during thech arging process are
shown in the central displa y.
% The mat can be remo vedfo r cleaning, e.g.
using clean, luk ewarmwater.
S
S t
to
o w
w ag
ag e com
e com par
partment wit
tment without cov hout cover
er
Make sure the mobile phone is proper lystored
and secu redto prev ent it from falling out while
yo u are driving. #
T
T o secur
o secur e t
e the mobile phone:
he mobile phone: swing lever2
out.
R
R adio eq
adio eq uipment appr ov
uipment appr oval number
al number s f
s for Br
or Br azil
azil
This device operates on a secondary basis, that is
to say it has no pr otection against harmful inter-
fe re nce, not even from the same type of stations,
and must not cause inter fere nce with systems
ope rating on a prima rybasis.
This product is permitted in accordance with the
procedure de/ned in Directive 242/2000 bythe
Brazilian telecommunications agency ANATEL and
meets the applicable tech nical requ irements.
Fu rther information is available on the ANATEL
we bsite. www.anatel.go v.br #
Further information on the declaration of con-
fo rm ity forve hicle components which receive
and/or transmit radio waves. F
F
itting/r
itting/r emo
emoving t
ving t he
he0oor
0oor mats
mats &
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. 136 136
Seats and st
owing

If
th e battery is insu1cient lych arge d, the stand-
ing lights or parking lights will be switched o.
automatically tofacilitate the next engine start.
The exterior lighting (e xcept standing and parking
lights) will switch o. automatically when the driv-
er's door is opened.
R Obser vethe no tes on sur round lighting
(/ page 146).
A
A ut
ut omatic dr
omatic dr iving lights function
iving lights function
When theve hicle is switched on, the standing
lights, low beam and daytime running lights are
switched on automatically depending on the light
conditions. &
W
WARNING
ARNING Risk of accident when the
dipped beam is switched o. in poor visi-
bility
When the light switch is set to0058 ,the
dipped beam may not be switched on auto-
matically if there is fog, snow or other causes
of poor visibility such as spr ay.#
In such cases, turn the light switch to
0058 . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting.
Switc Switc hing t
hing t he r
he rear f
ear f og lights on or
og lights on or o.
o.
R
R eq
eq uir
uir ements:
ements:
R The light switch is in the0058 or0058 posi-
tion. #
Press the 005E button.
Please obser vethe count ry-speci/c la wsonthe
use of rear fog lamps.
R
R egulating headlam
egulating headlam p r
p rang
ang e (halog
e (halog en headlam
en headlam ps)
ps)
The headla mprange adjuster all owsyo uto adjust
th e cone of light from the headlamps in relation to
th eve hicle's load condition. 005A
Driver's seat and front passen ger seat occu-
pied
0047 Driver's seat, front passenger seat and rear
seats occupied
0048 Driver's seat, front passen ger seat and rear
seats occupied, load compartment laden
0049 Driver's seat and front passen ger seat occu-
pied and maximum permissible rear axle load
utilised Light and sight
139
139

A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the hazar
he hazar d w
d war
arning lights
ning lights #
Press button 1.
The hazard warning lights will switch on automati-
cally if:
R the airbag has been deplo yed.
R theve hicle is heavily braked from a speed of
more than 70 km/h toa standstill. When
you pull away again, the hazard warning
light system will switch o. automatically at
appr oximately 10 km/h. You can also switch o.
th e hazard warning light system using button 1. A A
dap
dap tiv
tive functions, MUL
e functions, MUL TIBEAM LED
TIBEAM LED Int Int
ellig ellig ent Light Syst
ent Light Syst em function
em function
The MULTIBEAM LED headlamp s adapttothe
driving and weather situation and pr ovide exten-
ded functions for impr oved illumination of the
ro ad.
The system comprises thefo llowing functions:
R Active headlamps (/ page 141)
R Cornering light (/ page 142)
R Motorw ay mode (/ page 142)
R City lighting (/ page 142)
Syst
Syst em limits
em limits
R The system is active only when it is dar k.A
A
ctiv
ctiv e headlam
e headlamps function ps function R
The headlamps follow the steering mo ve-
ments.
R Releva nt areas are better illumina ted during a
journe y.
The functions are active when the high beam is
switched on. Light and sight
141
141