MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owners Manual

%
Have workor repairs todecorative foils car-
ri ed out at a quali/ed specialist workshop,
e.g. in a Mercedes-Benz Se rvice Centre. N
No
ot
tes on car
es on car e of car par
e of car par ts
ts &
W
WARNING
ARNING Risk of entrapment if the wind-
screen wipers are switched on while the
windscreen is being cleaned
If th e windscreen wipers are set in motion
while you are cleaning the windscreen or
wiper blades, you can be trapped bythe wiper
arm. #
Always switch o. the windscreen wipers
and theve hicle before cleaning the wind-
screen or wiper blades. &
W
WARNING
ARNING Risk of burns from theta ilpipe
and tailpipe trims
The exhaust tailpipe and tailpipe trims can
become very hot. If you come into contact
with these parts of theve hicle, you could burn
yo urself. #
Always be particular lycareful around the
ta ilpipe and theta ilpipe trims and super-
vise children especially closely in this
area. #
Allow vehicle parts tocool down before
to uching them. To
avo id damage totheve hicle, obser vethe no tes
on cleaning and care of thefo llowing vehicle
parts:
Wheels and r Wheels and r ims
ims
R Use water and acid-free alloy wheel cleaners.
R Do not use acidic alloy wheel cleaners to
re mo vebrake dust. This could damage wheel
bolts and brake components.
R Toavo id cor rosion of the brake disks and
brakepads, drive theve hicle for a few minu tes
aTer cleaning before parking it. The brake
disks and brakepads warm up and dry out.
W W indo ws
indo ws
R Clean the windo wsinside and outside with a
damp clo thand with a cleaning agent recom-
mended for Mercedes-Benz. R
Do not use dry clo ths or abrasive or sol vent-
based cleaning agents toclean the inside of
windo ws.
% ATer changing the wiper blades or treating
th eve hicle with wax, clean the windscreen
th oroughly with cleaning agents recommen-
ded for Mercedes-Benz. Failure toobser vethe
application instructions may result in damage,
smear mar ksor dazzling spots.
% Remo veextern al fogging or dirt on the wind-
screen in front of the multifunction camera.
Otherwise, driving systems and driving saf ety
systems may be impaired or not available
(/ page 223).
W
W iper blades iper blades
R Movethe wiper arms into there placement
position (/ page 150).
R With th e wiper arms folded out, clean the
wiper blades with a damp clo th.
% Make sure that the wiper blades are coated.
The coating can lea veresidues on a clo th. Do
not rubth e wiper blades excessively or clean
th em too oTen. 348
348
Maintenance and care

Ext
Ext
er
erior lighting
ior lighting
R Clean the lenses with a wet sponge and mild
cleaning agent, e.g. car sha mpoo.
R Only use cleaning agents or cleaning clo ths
th at are suitable for plastic lenses.
V
V ehicle soc ke
ehicle soc ket (high-v
t (high-v olt
oltag
age batt
e batt er
ery)
y)
R Use clean water and a soT clo thtoclean the
ve hicle soc ket.
R Do not use high-pressure cleaners or cleaning
agents, such as soap.
Sensors
Sensors
R Clean the sensors in the front and rear bump-
ers with a soT clo thand car shampoo
(/ page 223).
R When using a high-pressure cleaner, main tain
a minimum distance of 30 cm.
Rev Rev er
ersing camer
sing camer a and 360° Camera
a and 360° Camera
R Use clean water and a soT clo thtoclean the
camera lens.
R Do not use a high-pressure cleane r.T
T ailpipes
ailpipes
R Clean with a cleaning agent recommended for
Mercedes-Benz, especially in the winter and
aTer washing theve hicle.
R Do not use acidic cleaning agents.
Tr
Tr ailer hitch
ailer hitch
R Obser vethe no tes on care in the trailer hitch
manufacturer's operator manual.
R Do not clean the ball neck with a high-pres-
sure cleaner or sol vent.
R Remo vetraces of rust on the ball, forex ample,
with a wire brush.
R Remo vedirt with a lint-free clo th.
R ATer cleaning, lightly oil or grease the ball
head.
% Before using trailers with anti-torsional cou-
pling, obser vethe manufacturer's operator
manual. N No
ot
tes on car
es on car e of t
e of t he int
he int er
erior
ior &
W
WARNING
ARNING Risk of injury from plastic parts
breaking o. aTer the use of sol vent-based
ca re products
Care and cleaning products containing sol-
ve nts can cause sur faces in the cockpit to
become porous. When the airbags are
deplo yed, plastic parts may break away. #
Do not use any care or cleaning products
containing sol vents toclean the cockpit. &
W WARNING
ARNING Risk of injury or fatal injuries
from bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to tear
or fail in an accident. #
Never bleach or dye seat belts. To
avo id damage totheve hicle, obser vethefo l-
lowing no tes on cleaning and care: Main
tenance and ca re
349
349

Seat belts
Seat belts
R Clean wi thluk ewa rmand soapy water.
R Do not use chemical cleaning agents.
R Do not dry byheating them toove r 80°C or
ex posing them todirect sunlight.
Display
Display
R Switch o. the display and let it cool down.
R Clean the sur face carefully with a micro/bre
clo thand a suitable displ aycare product (TFT-
LC D).
R Do not use any other agents.
Head-up displ ay
Head-up display
R Clean with a soT, non-static, lint-free clo th.
R Do not use cleaning agents.
Plas
Plastic tr tic tr im
im
R Clean with a damp micro/bre clo th.
R For heavy soiling: Use a cleaner recommen-
ded for Mercedes-Benz.
R Do not attach stic kers, /lms or similar materi-
als. R
Do not allow cosmetics, insect repellent or
sun cream tocome in contact with the plastic
trim.
R
R eal w
eal w ood and tr
ood and tr im elements
im elements
R Clean with a micro/bre clo th.
R Blackpiano-lacquer look: Clean with a damp
clo thand soapy water.
R For heavy soiling: Use a cleaner recommen-
ded for Mercedes-Benz.
R Do not use sol vent-based cleaning agents, pol-
ishes or waxes.
R
R oof lining
oof lining
R Clean with a brush or dry shampoo.
Car
Car pet
pet
R Use a carpet and textile cleaning agent recom-
mended for Mercedes-Benz.
St
St eer
eer ing wheel made of g
ing wheel made of g enuine leat
enuine leather or DINA-
her or DINA-
MICA
MICA
* NO
NOTE
TEDamage caused bywrong cleaners #
Do not use sol vent-based cleaning
agents such as tarre mo ver or wheel cleaner; neither should
you use polishes
or wa xes. Otherwise you may damage
th e /nish. R
Clean with a damp clo thand 1% soapy water
solution and then wipe with a dry clo th.
R For heavy soiling: Use a cleaner recommen-
ded for Mercedes-Benz.
R Leather care: Use a leather care agent that
has been recommended for Mercedes-Benz.
R Do not allow the leather tobecome too damp.
R Do not use a micro/bre clo th.
% Leather is a natural product. It has natural
surface properties, such as di.erences in
st ru cture, mar kscaused bygrow thand injury
or subtle colour di.erences. These sur face
properties are characteristics of leather and
not material faults. What's more, leather is
subject toa natural ageing process during
which the sur face properties change.
Genuine leat
Genuine leat her seat cov
her seat cov ers ers
R Clean with a damp clo thand then wipe with a
dry clo th. 350
350
Maintenance and care

R
Leather care: Use a leather care agent that
has been recommended for Mercedes-Benz.
R Do not allow the leather tobecome too damp.
R Do not use a micro/bre clo th.
% Regular cleaning and care ofthe leather
re duces soiling, wear mar ksand ageing dam-
age and thus signi/cant lyex tends its life
span. Clo thing that can lea vestains, e.g.
jeans, can le ave discolouration on the leather.
DIN
DINAMIC AMIC A seat cov
A seat cov ers
ers
R Clean with a damp clo th.
R Do not use a micro/bre clo th.
Imit
Imit ation leat
ation leat her seat cov
her seat cov ers
ers
R Clean with a damp clo thand 1% soapy water.
R Do not use a micro/bre clo th.
F
F abr
abr ic seat cov
ic seat cov ers
ers
R Clean with a damp micro/bre clo thand 1%
soapy water and allow todry. Maintenance and ca
re
351
351

Emerg
Emerg
ency
ency R
R
emo
emo ving t
ving t he safe
he safe ty v
ty vest
est The saf
etyve sts are loca ted in the st owage com-
partments in the driver's and front passenger
door. #
Pull out the saf etyve st bag bythe loop. #
Open the saf etyve st bag and pull out the
saf etyve st.
% There are also sa fety vest co mpartments in
th ere ar door st owage compartments in which
saf etyve sts can be stored. 1
Maximum number of washes
2 Maximum wash temp erature 3
Do not bleach
4 Do not iron
5 Do not tumble dry
6 Do not dry clean
7 Class 2 saf etyve st
The requ irements de/ned bythe legal standard
are only ful/lled if the saf etyve st is the cor rect
size and is ful lyclosed.
Re place the saf etyve st in thefo llowing cases:
R there 0ective strips are dama ged or dirty
R the maximum permissible number of washes
is exceeded
R the 0uorescence has faded W
W
ar
ar ning tr
ning tr iangle
iangle R
R
emo
emo ving t
ving t he w
he war
ar ning tr
ning tr iangle
iangle #
Open load compartment 0oor 1. #
Remo vewarning triangle 2. 352
352
Breakdown assistance

Se
Se
tting up t
tting up t he w
he war
arning tr
ning tr iangle
iangle #
Fold side re0ectors 1upwards toform a tri-
angle and attach at theto p using upper press-
stud 2. #
Fold legs 3down and out tothe side. F
F
irs
irst-aid kit t-aid kit (soT-sided)
(soT-sided) ov
over
erview
view Fi
rs t-aid kit (soT sided) 1is in the load compart-
ment in the leT-hand st owage net. R
R
emo
emo ving t
ving t he
he/re
/re e
extinguisher
xtinguisher &
W WARNING ARNING Risk of accident due toan
inco rrectly secured /re extinguisher in the
driver's foot we ll
A /re extinguisher may impede pedal tr avel or
block a depressed pedal. This jeopardises
the operating and road saf ety
of theve hicle.
The /re extinguisher can be 0ung around and
injure the driver or other vehicle occupants. #
Always store and secure the /re extin-
guisher in the brac ket. #
Do not remo vethe /re extinguisher while
driving. #
LeT-hand
LeT-hand dr
driv
ive v
e v ehicle:
ehicle: pulltab1 upwards. #
Right-hand dr
Right-hand dr iv
ive v
e v ehicle:
ehicle: pulltab1 down-
wa rds. #
Remo ve/re extinguisher 2. Breakdown assistance
353
353

Flat tyre
Flat tyre
N
No
ot
tes on
es on 0at
0attyr
tyres
es &
W
WARNING
ARNING Risk of accident due toa 0at
tyre
A 0at tyre se verely a.ects the driving charac-
te ristics as well as the steering and braking of
th eve hicle.
T
T yr
yr es wit
es wit hout
houtr
run-0at
un-0at c
char
har act
acter
eristics:
istics: #
Do not drive with a 0at tyre. #
Change the 0at tyre immediately with an
emer gency spa rewheel or spare wheel.
Alternativel y,consult a quali/ed special-
ist workshop.
T
T yr
yr es wit
es wit h
hr
run-0at
un-0at c
char
har act
acter
eris
istics:
tics: #
Obser vethe information and warning
no tes on MOExtended tyres (run-0at
tyres). In
theev ent of a 0at tyre, thefo llowing options are
av ailable depending on your vehicle's equipment:
R V
Vehicles wit
ehicles with MOExt h MOExtended tyr
ended tyr es:
es:it is possible
to continue the journey for a short period of
time. Make sure you obser vethe no tes on
MOExtended tyres (run-0at tyres)
(/ page 354).
R V Vehicles wit
ehicles wit h a TIREFIT kit:
h a TIREFIT kit: you can repair the
tyre so that it is possible tocontinue the jour-
ney for a short period of time. Todo this, use
th e TIREFIT kit (/ page 356).
R V
V ehicles wit
ehicles wit h Mer
h Mercedes me connect:
cedes me connect: you can
make a call for breakdown assistance via the
ove rhead control panel in the case of a break-
down (/ page 314).
R All v
All v ehicles:
ehicles: change the wheel (/ page 383). N
No
ot
tes on MOExt
es on MOExt ended tyr
ended tyres
es(r
(run-0at
un-0at tyr
tyres)
es) &
W
WARNING
ARNING Risk of accident when driving in
limp-home mode
Driving in emer gency mode impai rsthe han-
dling characteristics of theve hicle. #
Do not exceed the permissible maximum
speed of the MOExtended tyres. #
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obstacles (kerbs, pot holes, o.-road).
This applies, in particular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vib ration
R smo kewhich smells like rubber
R continuous ESP ®
inter vention
R crac ksinthe tyre side walls #
ATer driving in emer gency mode, ha ve
th erims checkedby a quali/ed specialist
wo rkshop with rega rd totheir fur ther
use. #
The defective tyre must be replaced in
ev ery case. 354 354
Breakdown assistance

Wi
th MOEx tended tyres (run-0at tyres), you can
continue todrive your vehicle even if there is a
to ta l loss of pressure in one or more tyres. Ho w-
ev er, the tyre a.ected must not show any clear ly
visible damage.
Yo u can recognise MOExtended tyres bythe
MOEx tended ma rking which appears on the side
wa ll of the tyre.
V
V ehicles wit ehicles wit h tyr
h tyr e pr
e pressur
essur e loss w
e loss w ar
arning syst
ning syst em:
em:
MOExtended tyres may only be used in conjunc-
tion with an activated tyre pressure loss warning
system.
V V ehicles wit
ehicles wit h tyr
h tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy st
stem:
em:
MOExtended tyres may only be used in conjunc-
tion with an activated tyre pressure monitoring
system.
If a pressure loss warning message appears inthe
driver's displa y,proceed as follo ws:
R Check the tyre for damage.
R If driving on, obser vethefo llowing no tes. Dr Dr
iving dist iving dist ance possible in emerg
ance possible in emerg ency mode
ency mode
aTer
aTer t
the pr
he pr essur
essur e loss w
e loss w ar
arning:
ning: Load condition
Load condition
Dr
Driving dist
iving dist ance possi-
ance possi-
ble in emerg
ble in emerg ency mode
ency mode
Pa rtially laden 80 km
Fu lly laden 30 km The driving distance possible in emer
gency mode
may vary depending on the driving style. Obser ve
th e maximum permissible speed of 80 km/h.
If a tyre has gone 0at and cannot be replaced with
an MOExtended tyre, you can use a standard tyre
as a temp orary measure. S
S
t
tor
or ag
ag e location of t
e location of t he TIREFIT kit (no
he TIREFIT kit (no t plug-in
t plug-in
h
h ybr
ybr id)
id) The TIREFIT kit is located under
the load compart-
ment 0oor. 1
Tyre sealant bottle
2 Tyre in0ation compressor
Depending on theve hicle version, the TIREFIT kit
may also be located in other places under the
load compartment 0oor.
% You can /nd information on the po wer cate-
gory (LK) and/or electrical data on the back
of the tyre in0ation compressor:
R LK2 – 12 V/15 A,180 W,0.8 kg Breakdown assistance
355
355

At
a dis tance of app roximately 1 m tothe tyre
in0ation compressor and appr oximately 1.6 m
abo vethegr ound, thefo llowing sound pres-
sure le vels appl y:
R Emission sound pressure le vel L
PA 83 dB
(A)
R Sound po wer le vel L
WA 91 dB (A)
The tyre in0ation compressor is maintenance-
free. If there is a malfunction, please contact
a qu ali/ed specialist workshop. TIREFIT kit st TIREFIT kit st
or
orag
ag e location
e location The TIREFIT kit is located under
the load compart-
ment 0oor on theright-hand side.
% You can /nd information on the po wer cate-
gory (LK) and/or electrical data on the back
of the tyre in0ation compressor:
R LK2 – 12 V/15 A,180 W,0.8 kg At
a dis tance of app roximately 1 m tothe tyre
in0ation compressor and appr oximately 1.6 m
abo vethegr ound, thefo llowing sound pres-
sure le vels appl y:
R Emission sound pressure le vel L
PA
83 dB(A)
R Sound po wer le vel L
WA 91 dB(A)
The tyre in0ation compressor is maintenance-
free. If there is a malfunction, please contact
a qu ali/ed specialist workshop. Using t
Using t
he TIREFIT kit
he TIREFIT kit R
R
eq
eq uir
uir ed t
ed t ools:
ools:
R Tyre sealant bottle
R TIREFIT stic ker
R Sticke r with de tails of the maximum permissi-
ble speed
R Tyre in0ation compressor
R Gloves
TIREFIT kit storage location: (/ page 356, 355)Yo
u can use TIREFIT tyre sealant toseal per fora-
tion damage of up to4 mm, particular lythose in
th e tyre contact sur face. You can use TIREFIT in
outside temp eratures down to-20°C. &
W
WARNING
ARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable toseal the
tyre proper ly, especially in thefo llowing cases:
R there are lar gecuts or punctures in the
tyre (la rger than damage pr eviously men-
tioned)
R the wheel rims ha vebeen damaged
R aTer journe yswith very low tyre pressure
or with 0at tyres #
Do not continue driving. #
Consult a quali/ed specialist workshop. &
W WARNING
ARNING Risk of injury and poisoning
from tyre sealant
Ty re sealant is hazardous tohealth and causes
ir rita tion. Do not allow it tocome into contact 356 356
Breakdown assistance

with
your skin, eyes or clo thing, and do not
swallow it. Do not inhale any vapours. Keep
th e tyre sealant away from children.
Obser vethefo llowing if you come into contact
with the tyre sealant: #
Rinse o. the tyre sealant from your skin
using water immediatel y. #
If tyre sealant gets into your eyes, thor-
oughly rinse them using clean water
immediatel y. #
If tyre sealant has been swallo wed,thor-
oughly rinse out your mouth immediately
and drink plenty of water. Do not induce
vo miting and seek medical attention
immediatel y. #
Change out of clo thing which has come
into contact with tyre sealant immedi-
atel y. #
If an alle rgic reaction occurs, seek medi-
cal attention immediatel y. *
N NO
OTE
TE Overheating due tothe tyre in0ation
compressor running too long #
Do not runth e tyre in0ation compressor
fo r longer than ten minutes without inter-
ru ption. Comply with
the manufacturer's saf ety no tes on
th e stic ker on the tyre sealant bottle.
Ha ve the tyre sealant bottle replaced in a quali/ed
specialist workshop every /ve years. #
Do not remo veany fore ign objects which ha ve
entered the tyre. #
Remo vesticker 1 from the tyre in0ation
compressor housing and a1x it tothe inst ru-
ment cluster within the driver's /eld of vision. #
Remo vesticker 2 from the tyre sealant bot-
tle and a1x it near theva lve on the wheel with
th e defective tyre. Breakdown assistance
357
357