wheel MERCEDES-BENZ B-CLASS HATCHBACK 2021 Workshop Manual

7
Coolant temp erature display
During normal operation, the coolant temp er-
ature display is permitted torise to120°C.
8 Selected drive prog ram
9 Selected transmission position
A Centre display area of the inst rument display
(e xamp le: standard display for trip): Assis-
ta nce / Telephone / Navigation / Trip /
Media / Radio / Styles and displa ys /
Service / Powe r me ter (equipment-depend-
ent)
B Fuel le vel, fuel /ller 0ap location indicator,
ra nge Ov
Ov
er
ervie
vie w of butt
w of butt ons on t
ons on the st
he steer
eer ing wheel
ing wheel 1
P Back/Home button (p ress and hold),
on-board computer
2 Touch Control, on-board computer
3 Control panel for cruise control/limiter or
Ac tive Distance Assist DISTRONIC
4 Control panel forth e MBUX multimedia sys-
te m (/ page 288) £
LINGU ATRO NIC
5 00E2 Tocall up the home screen of the multi-
media system
6 Touch Control multimedia system
7 0038 Back button (multimedia system)
8 Brightness control toadjust the lighting in the
Instrument Displ ayand in the control ele-
ments of theve hicle interior Oper
Oper
ating t
ating t he on-boar
he on-boar d com
d comput
puter
er
Obser vethe legal requ irements forth e country in
which you are cur rently driving when ope rating
th e on-board computer. 282
282
Instrument display and on-board computer

The driver's seat is equipped with an access pre-
ve
nter.
If th e driver's door is open, the driver's seat will
not
not be set aTer calling up the driver's pro/le.
Pro/les store your vehicle settings and settings
fo rth e multimedia system. If theve hicle is used
by several drivers, the driver can select their own
pro/le without changing the stored pro/le settings
of other drivers.
% Information on pro/les from Mercedes me
connect can be found in the Digital Opera-
to r's Manual.
Ve hicle settings are, forex ample, driver's seat,
steering wheel and mir ror settings, climate control
and ambient lighting. Forth e settings of the multi-
media system, you can select, forex ample, radio
stations, pr evious destinations as well as themes,
suggestions and favo urites.
Fo rre cur ring driving situations, such as long
drives on the mo torw ay,yo u can sa veyour prefer-
re d settings in a theme in theve hicle. In a theme
yo u can sa vethe display of the digital map, your
prefer redra dio station and prefer red drive pro-
gr am, forex ample. The
vehicle can learn the habits of the driver. It
th en o.ers suggestions forth e most probable
navigation destinations, media sources, radio sta-
tions or contacts. The pre-requirements forth at
are the selection of a pro/le, your consent tothe
re cording of data and su1cient collected data.
Fa vourites pr ovide quick access toapplications
th at are used oTen. You can select favo urites
from categories or add them directly toan appli-
cation. Con/gur Con/gur
ing
ingpr
pro/les,
o/les, t
themes and sugg
hemes and sugg es
estions
tions Multimedia system:
4 © 5
f Profiles
Cr
Cr eating a ne
eating a ne w
w pr
pro/le
o/le #
Select 0081Create profile . #
Select an avatar. #
Enter the name and con/ rmwith 0076. #
Select Continue 0048. #
Select Current settings . #
Select Save. #
Activate Blue tooth ®
and select Connect
phone, toconnect a mobile phone with the
user pro/le . #
Select Finished.
Selecting
Selecting pr
pro/le
o/le op
options
tions #
Select 0062for a pro/le.
The following functions are available:
R Editing, resetting or deleting a pro/le
R Resetting themes or favo urites
R Con/guring suggestions
Con/gur Con/gur ing ingsugg
sugg es
estions tions #
Select 0062for a pro/le. #
Select Suggestions settings. #
Switch Allow destination suggestions, Allow
music suggestions andAllow contact sugges-
tions on or o.. #
T
To deactiv
o deactiv at
ate t
e t he lear
he lear ning function f
ning function f or one
or one
day
day :
:activate Deact. learn. for 24h .
Fo r 24 hours no new actions will be trained
and no data recorded forth e active pro/le.
Suggestions will continue tobe shown. 296
296
MBUX multimedia system

Fo
r accident clari/cation purposes, thefo llowing
measures can be take n up toan hour aTer the
emer gency call has been initia ted:
R The cur rent vehicle position can be de ter-
mined.
R Avo ice connection totheve hicle occupants
can be es tablished.
R Emer gency call data can be called up.
% ForRu ssia: various functions, e.g. receiving
tra1c information, cannot be per form ed for
up totwo hours aTer sending an emer gency
call. Self diagnosis function of t
Self diagnosis function of t
he emerg
he emerg ency call sy
ency call sy s-
s-
t
t em
em Yo
ur car veri/es the operability of the emer gency
call system each time theve hicle is ON. In case of
system failure, you will be informed with text mes-
sage on the inst rument clus ter and with red indi-
cator SOS NOT READY on the displa y.
Please, ma kesure, that during 30 seconds aTer
switching vehicle ON there d indicator SOS NOT
READY in the upper right corner of display is switched OFF,
this means the emer gency call sys-
te m passed diagnostics successfull y. S
S
t
tar
ar ting/ending ERA
ting/ending ERA -GL
-GLON
ONASS t
ASS t es
est mode
t mode R
R
eq
eq uir
uir ements:
ements:
R The star ter battery is su1ciently charge d.
R The vehicle is switched on.
R The vehicle has been stationary for at least
one minute.
% The test mode is cu rrently available in thefo l-
lowing countries, forex ample:
R Russia
R Belarus
R Kazakhstan
R Armenia
R Kyrgyzs tan #
T
To st
o st ar
art t
t t he t
he t es
est mode:t mode: press and hold the
0076 button on the multifunction steering
wheel for at least /ve seconds.
The test mode is star ted and automatically
ends aTer the language test has been pe r-
fo rm ed. #
T
To st
o st op manual t
op manual t es
est mode:t mode: switch o. theve hi-
cle.
The test mode is ended. Inf Inf
or
ormation on dat
mation on dat a pr
a processingocessing Pr
Processing of per
ocessing of per sonal dat
sonal data via t
a via the Mer
he Mercedes- cedes-
Benz emerg
Benz emerg ency call sy st
enc y call sy stem
em
All processing of pe rsonal data via the Mercedes-
Benz emer gency call system cor responds with the
speci/cations in the EU Regulation 2016/679 "on
th e pr otection of individuals with rega rd tothe
processing of personal data (GDPR)".
The data is solely used bythe Mercedes-Benz
emer gency call system forre scue and reco very in
th eev ent of an accident.
The owner of a vehicle, that is equipped with a
Mercedes-Benz emer gency call system in addition
to the 112 emer gency call system (EU eCall), has 328 328
MBUX multimedia system

ASS
YS
ASS YST PL
T PL US ser
US ser vice int
vice int erv
erval display
al display F
F
unction of t
unction of t he ASSYS
he AS SYST PL
T PL US ser
US ser vice int
vice int erv
erval dis-
al dis-
play
play The ASS
YST PLUS service inter val display on the
inst rument display informs you of the time or dis-
ta nce remaining before the next service due date.
Yo u can hide this service display using the back
button Gonthe leT-hand side of the steering
wheel.
Depending on how theve hicle is used, the
ASS YST PLUS service inter val display may shor ten
th e service inter val, e.g. in thefo llowing cases:
R Mainly short-distance driving
R When the engine is oTen leT idling for long
periods
R Intheev ent of frequent cold start phases
R V
V ehicles wit ehicles wit h a diesel par
h a diesel par ticulat
ticulate
e/lt
/lt er:
er: inthe
ev ent of frequently inter rupted rege neration of
th e diesel particulate /lter
Mercedes-Benz recommends avoiding such oper-
ating conditions. Yo
u can obtain information concerning the servic-
ing of your vehicle from a quali/ed specialist
wo rkshop, e.g. a Mercedes-Benz service cent re. Displa
Displa
ying t
ying t he ser
he ser vice due date
vice due date On-board computer:
4 Service 5
ASSYST PLUS
The next service due date is displa yed. #
T
T o e
o e xit t
xit t he displa y:
he displ ay:press the back button
G onthe leT-hand side of the steering
wheel.
Bear in mind thefo llowing related topic:
R Operating the on-board computer
(/ page 282). Inf
Inf
or
ormation on r
mation on r egular maint
egular maint enance w
enance work
ork *
N
NOOTE
TE Premature wearthro ugh failure to
obser veservice due dates Main
tenance workwhich is not car ried out at
th eright time or inco mplete ly can lead to
increased wear and damage totheve hicle. #
Adhere tothe prescribed service inter-
va ls. #
Always ha vethe prescribed maintenance
wo rkcar ried out at a quali/ed specialist
wo rkshop. N
No
ot
tes on special ser
es on special ser vice r
vice req
equir
uir ements
ements The prescribed service inter
val is based on nor-
mal operation of theve hicle. Ha vethe mainte-
nance workcar ried out more oTen than prescri-
bed if operating conditions are di1cult or the
ve hicle is subject toincreased stress.
The ASS YST PLUS service inter val display is only
an aid. The driver of theve hicle bears responsibil-
ity as rega rdsto whe ther maintenance work
needs tobe per form ed more oTen than speci/ed
based on the actual operating conditions and/or
loads.
Examples of arduous operating conditions:
R Regular city driving with frequent intermediate
stops
R Mainly short-distance driving 336 336
Maintenance and care

R
Do not polish theve hicle and light-alloy
wheels.
R Only use car washes that cor respond tothe
latest engineering standards.
R Do not use car wash prog rammes with a /nal
hot wax treatment.
R Do not use paint cleaners, bu1ng or polishing
products, gloss preser vers, e.g. wax.
In theev ent of paintwork damage:
R Always ha vepaintwork repairs car ried out at a
qu ali/ed specialist workshop.
R Make sure thera dar sensors function
(/ page 223). N
No
ot
tes on cleaning decor
es on cleaning decor ativ
ative f
e foils
oils Obser
vethe no tes on matt /nish care in thech ap-
te r "No tes on paintwork/matt /nish paintwork
care" (/ page 346). They also apply tomatt dec-
orative foils.
Obser vethe no tes on cleaning decorative foils to
av oid vehicle damage. Cleaning
Cleaning
R For cleaning, use plenty of water and a mild
cleaning agent without additives or abrasive
substances, e.g. a car shampoo appr ovedfor
Mercedes-Benz.
R Remo vedirt immediatel y,where possible,
whilst avoiding rubbing too hard. There is oth-
erwise a risk of damaging the decorative foil
ir re parabl y.
R Ifth ere is dirt on the /nish or if the decorative
fo il is dull: Use thePa int Cleaner recommen-
ded and appr ovedfo r Mercedes-Benz.
R Insect remains: Soak with insect remo ver and
ri nse o. the treated areas aTer wards.
R Bird droppings: Soak with water and rinse o.
aTer wards.
R Topreve ntwa ter stains, dry a foil-wrapped
ve hicle with a soT, absorbent clo thaTer every
car wash.
Av Av oiding damag
oiding damag e t
e to t
o t he decor
he decor ativ
ative f
e foil
oil
R The service life and colouring of decorative
fo ils are impaired by:
- Sunlight -
Tempe rature, e.g. hot air blo wer
- Weather conditions
- Stone chippings and dirt
- Chemical cleaning agents
- Oily products
R Do not use polish on matt decorative foil. Po l-
ishing will ha vethe e.ect of shining thefo il-
wrapped sur face.
R Do not treat matt or st ructured decorative
fo ils with wax.Pe rm anent stains may occur.
Scratches, cor rosive deposits, areas a.ected by
cor rosion and damage caused byincor rect care
cannot alw ays be comple tely re paired. In such
cases, visit a quali/ed specialist workshop.
Yo u can obtain more information on care and
cleaning products from the manufacturer.
In the case of foil-wrapped sur faces, optical di.er-
ences may occur between the sur faces that we re
not pro tected bya decorative foil aTer removing a
decorative foil. Maintenance and care
347
347

%
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

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

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

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