ESP MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owners Manual

N
N
o
ot
tes on noise or unusual handling c
es on noise or unusual handling c har
har act
acter
eris-
is-
tics
tics
Make sure there are no vibrations, noises or
unusual handling characteristics when theve hicle
is in motion. This may indicate that the wheels or
tyres are damaged. Hidden tyre damage could
also be causing the unusual handling characteris-
tics.
If yo u suspect that a tyre is defecti ve,re duce your
speed immediately and ha vethe tyres and wheels
ch ecked at a quali/ed specialist workshop. N No
ot
tes on r
es on r egularl
egularly inspecting wheels and tyr
y inspecting wheels and tyr es
es&
W
WARNING
ARNING Risk of injury due todamaged
tyres
Damaged tyres can cause tyre pressure loss. #
Check the tyres regula rly fo r signs of
damage and replace any damaged tyres
immediatel y. &
W
WARNI NG
ARNI NGRisk of aquaplaning due to
insu1cient tyre tread
Insu1cient tyre tread will result in reduced
tyre grip.
The risk of aquaplaning is increased on wet
ro ads, especially when the speed of theve hi-
cle is not adap tedto suit the conditions. #
Thus, you should regula rly ch eck the
tread dep thand the condition of the
tread across the entire width of all tyres.
Minimum tread dep thfor:
R Summer ty res: 3 mm
R M+S tyres: 4 mm #
For saf etyre asons, replace the tyres
before the legall y-prescribed limit forthe
minimum tread dep thisreached. Car
ryout thefo llowing checks on all wheels regu-
lar ly, at least once a month or as required, for
ex ample, prior toa long jou rney or driving o.-
ro ad:
R Check the tyre pressure (/ page 375). R
Visually inspect wheels and tyres for damage.
R Check theva lve caps.
R Visual check of the tyre tread dep thand the
tyre contact sur face across the entire width.
The minimum tread dep thfor summer tyres is
3 mm and for winter tyres 4 mm. N
No
ot
tes on sno
es on sno w c
w chains
hains &
W
WARNING
ARNING Risk of accident due toincor-
re ctly /tted snow chains
If yo u ha ve/tted snow chains tothere ar
wheels, they may drag against theve hicle
body or chassis components. #
Never /t snow chains on there ar
wheels. #
Only /t snow chains on the front wheels
in pairs. 374
374
Wheels and tyres

*
N
N O
OTE
TE Damage tovehicle body or suspen-
sion components caused by/tted snow
ch ains On 4MATIC
vehicles, if you /t snow chains on
th ere ar wheels, you can damage vehicle body
or suspension components. #
On 4MATIC vehicles, only /t snow chains
on the front wheels. *
N
NO OTE
TE Damage tothe wheel trim from /t-
ted snow chains If snow
chains are /tted tosteel wheels, the
wheel trims can be damaged. #
Remo vethe wheel trims of steel wheels
before /tting snow chains. Obser
vethefo llowing no tes when using snow
ch ains:
R Snow chains are only permissible for cer tain
wheel/tyre combinations. You can obtain
information about this from a Mercedes-Benz
Service Centre. R
For saf etyre asons, only use snow chains that
ha ve been speci/cally appr oved foryo ur vehi-
cle byMercedes-Benz, or snow chains with
th e same quality standard.
R If snow chains are /tted, the maximum per-
missible speed is 50 km/h.
R V
Vehicles wit
ehicles wit h A
h Activ
ctiv e P
e Par
arking Assist
king Assist: :do not use
Ac tive Parking Assist when snow chains are
/tted.
% You can permanently limit the maximum
speed for driving with winter tyres
(/ page 235).
% You can deactivate ESP ®
to pull away
( / page 227). This allo ws the wheels tospin,
achieving an increased driving forc e. T
T
yr
yr e pr
e pr essure
essure N
No
ot
tes on tyr
es on tyr e pr
e pressure
essure &
W
WARNING
ARNING Risk of accident due toinsu1-
cient or excessive tyre pressure
Un derin0a tedorove rin0ated ty res pose in par-
ticular thefo llowing risks:
R The tyres can burst.
R The tyres can wearexcessively and/or
une venly.
R The driving characteristics as well as the
stee ring and braking characteristics may
be greatly impaired. #
Comply with there commended tyre
pressure and check the tyre pressure of
all tyres, including the spare wheel, regu-
lar ly:
R monthly
R when the load changes
R before embarking on a lon ger journey Wheels and tyres
375
375

If one or more tyre sizes precede a tyre pressure,
th efo llowing tyre pressure information is only
va lid forth ose tyre sizes and their respecti veload
condition.
If th e preceding tyre sizes are complemented by
th e0091 symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures. Fuel
consum ption may then increase slightl y.
The load conditions "pa rtially laden" and "fully
laden" are de/ned in theta ble for di.erent num-
bers of passengers and amounts of luggage. The
actual number of seats may di.er from this. T T
yr
yr e pr
e pr essur
essur e monit
e monit or
oring syst
ing syst em
em F
F
unction of t
unction of t he tyr
he tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em
em
The system checks the tyre pressure and the tyre
te mp erature of the tyres /t tedtotheve hicle by
means of a tyre pressure sensor.
The tyre pressure and the tyre temp erature
appear in the on-board computer (/ page 377).
If th ere is a substantial pressure loss or if the tyre
te mp erature is excessive, you will be warned with
display messages (/ page 469) orthe0077 wa
rning lamp in the inst rument cluster
(/ page 493).
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation.
In most cases, the tyre pressure monitoring sys-
te m will automatically update the new refere nce
va lues aTer you ha vechanged the tyre pressure.
Yo u can, ho wever, also update there fere nce val-
ues byrestarting the tyre pressure monitoring
system manually (/ page 378).
Syst
Syst em limits em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R incor rect refere nce values were ta ught in
R sudden pressure loss caused byafo re ign
object penetrating the tyre, forex ample
R there is a malfunction caused byano ther radio
signal source Chec Chec
king t king t he tyr
he tyr e pr
e pressur
essur e wit
e with t
h the tyr
he tyr e pr
e pressure
essure
monit
monit or
oring sy
ing sy st
stem
em
R
R eq
eq uir
uir ements:
ements:
R The vehicle is switched on.
On-board computer: 4 Service 5
Tyres
One of thefo llowing displa ysappears:
R Current tyre pressure and tyre temp erature of
th e individual wheels: R
Tyre pressures will be displayed after a few
minutes of driving Wheels and tyres
377 377

The tyre pressure loss
warning system is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation and tocheck
it.
Be sure toalso obser vethefo llowing fur ther rela-
te d subjects:
R Notes on tyre pressure (/ page 375)
R Displ aymessages about the tyres
(/ page 469)
R
R est est ar
arting t
ting t he tyr
he tyr e pr
e pressur
essur e loss w
e loss w ar
arning syst
ning syst em
em
R
R eq
eq uir
uir ements:
ements:
R The recommended tyre pressure is cor rectly
set forth ere specti veoperating status on all
wheels.
Re start the tyre pressure loss warning system in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
ne wly /tted. On-board computer:
4 Service 5
Tyres #
Swipe down wards on Touch Control on the
leT-hand side of the steering wheel.
The Run Flat Indicator active Restart mes-
sage is shown in the displa y. #
Tobegin restart, press Touch Control on the
leT-hand side of the steering wheel.
The Tyre pressure now OK? message is
shown in the displa y. #
Select Yes. #
Tocon/rm restart, press Touch Control on the
leT-hand side of the steering wheel.
The Run Flat Indicator restarted message is
shown in the displa y.
ATer you ha vedriven for a few minutes, the
tyre pressure loss warning system monitors
th e set tyre pressures of all the tyres.
Be sure toalso pay attention tothefo llowing rela-
te dto pic:
R Notes on tyre pressure (/ page 375) Wheel c
Wheel c
hange
hange N
No
ot
tes on selecting,
es on selecting, /tting
/ttingand r
and replacing tyr
eplacing tyr es
es &
W
WARNING
ARNING Risk of accident due toincor-
re ct wheel and tyre dimensions
If wheels and tyres of the wrong size are /t ted,
th e service brakes or components in the brake
system and in the wheel suspension may be
damaged. #
Alwaysre place wheels and tyres with
th ose that ful/l the speci/cations of the
original part.
Fo r wheels, pay attention tothefo llowing:
R Designation
R Type
Fo r tyres, pay attention tothefo llowing:
R Designation
R Manufacturer
R Type Wheels and tyres
379
379

&
W
WARNI NG
ARNI NGRisk of injury thro ugh exceed-
ing the speci/ed tyre load-bearing capa-
city or the permissible speed rating
Exceeding the load-bearing capacity of the
tyres can lead totyre damage and could cause
th e tyres toexplode. #
Therefore, only use tyre types and sizes
appr ovedfo ryo ur vehicle model. #
Obser vethe tyre load-bearing capacity
ra ting and speed rating requ ired foryo ur
ve hicle. *
N NOOTE
TE Vehicle and tyre damage thro ugh
tyre types and sizes that ha venot been
app roved Fo
r saf etyre asons, only use tyres, wheels and
accessories which ha vebeen specially
appr oved byMercedes-Benz foryo ur vehicle. These tyres are special
lyadap tedto the active
saf ety sy stems, su chas ABS, ESP ®
and
4MATIC, and mar ked as follo ws:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Ex tended
(run-0at tyres only for cer tain wheels)
R MO1 = Mercedes-Benz Original (only cer-
ta in AMG tyres)
Otherwise, cer tain properties, such as han-
dling characteristics, vehicle noise emissions,
consu mption, etc. could be adversely a.ec-
te d. Furthermore, other tyre sizes could result
in the tyres rubbing against the body and axle
components when loaded. This could result in
damage tothe tyre or theve hicle.
Only use tyres, wheels and accessories that
ha ve been checked and recommended by
Mercedes-Benz. *
N
NOOTE
TE Risk todriving saf ety from retrea-
ded tyres Re
treaded tyres are neither tested nor recom-
mended byMercedes-Benz, since pr evious
damage cannot alw ays be de tected on retrea-
ded tyres.
Fo rth is reason driving saf ety cann otbe guar-
anteed. #
Do not use used tyres if you ha veno
information about their pr evious usage. *
N NOOTE
TE Possible wheel and tyre damage
when driving over obstacles Lar
gewheels ha vea smaller section width. As
th e section width decreases, therisk of
wheels and tyres being damaged when driving
ov er obstacles increases. #
Avoid obstacles or drive especially care-
full y. #
Reduce your speed when driving over
ke rbs, speed bumps, manhole co vers
and po tholes. 380 380
Wheels and tyres

#
Avoid particular lyhigh kerbs. *
N
NO OTE
TE Possible wheel and tyre damage
when parking on kerbs or in po tholes Pa
rking on kerbs or in po tholes may damage
th e wheels and tyres. #
If possible, park only on 0at sur faces. #
Avoid kerbs and po tholes when parking. *
N
NO OTE
TE Damage toelectronic component
parts from the use of ty re-/tting tools V
V
ehicles wit
ehicles wit h a tyr
h a tyr e pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: electronic component parts are located
in the wheel. Tyre-/tting tools should not be
applied in the area of theva lve.
The tools could damage the electronic compo-
nent parts. #
Have the tyres changed at a quali/ed
specialist workshop onl y. *
N
NO
OTE
TE Damage tosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could form
when driving with summer tyres, causing per-
manent damage tothe tyre. #
Attemp eratures below 7 °C use 004D
M+S tyres. Ac
cessory parts which are not appr oved foryo ur
ve hicle byMercedes-Benz, or which are not used
cor rectl y,can impair the operating saf ety.
Before purchasing and using non-appro ved acces-
sories, visit a quali/ed specialist workshop and
enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
W
WARNING
ARNING Risk of accident with high per-
fo rm ance tyres
The special tyre tread in combination with the
optimised tyre compound means that therisk of skidding and
hydroplaning on wetro ads is
increased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your driv-
ing style accordingl y. #
Use 004D M+S tyres at outside temp era-
tures of less than 10 °C. #
Only use the tyres forth eir intended pur-
pose. Obser
vethefo llowing when selecting, /tting and
re placing tyres:
R Countr y-speci/c requ irements for tyre
appr oval that de/ne a speci/c tyre type for
yo ur vehicle.
R Furthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can be
high lybene/cial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOExtended
tyres) and the same make. Wheels and tyres
381 381

#
V
Vehicles wit
ehicles wit h tyr
h tyre pr
e pressur
essur e loss w
e loss w ar
ar ning sy
ning sy s-
s-
t
t em:
em: restart the tyre pressure loss warning
system (/ page 379). #
V
Vehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: restart the tyre pressure monitoring sys-
te m (/ page 378). Emerg
Emerg
ency spar
ency spar e wheel
e wheel N
No
ot
tes on t
es on t he emerg
he emerg ency spar
ency spar e wheel
e wheel &
W
W ARNING
ARNING Risk of accident caused by
incor rect wheel and tyre dimensions
The wheel or tyre size and the tyre type of the
emer gency spa rewheel or spare wheel and
th e wheel tobe replaced may di.er. The emer-
ge ncy spa rewheel or spare wheel can signi/-
cantly impair driving characteristics of the
ve hicle.
To prev ent hazardous situations: #
Drive carefull y. #
Never /t more than one emer gency
spa rewheel or spare wheel that di.ers
in size. #
Only use an emer gency spa rewheel or
spare wheel brie0y. #
Do not deacti vate ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a di.erent size replaced
at the nearest quali/ed specialist work-
shop. The new wheel must ha vethe cor-
re ct dimensions. %
The de0ated emer gency spa rewheel is
secured in the emer gency spa rewheel bag in
th e load compartment and is secured tothe
adjustable load compartment 0oor in the
lo we r position.
Obser vethefo llowing no tes on removing an emer-
ge ncy spa rewheel:
R Before st owing the emer gency spa rewheel,
make sure there is no air leT in the tyre.
If necessar y,allow the air toescape. R
T
To r
o r elease air fr
elease air fr om t
om the tyr
he tyr e:
e: remo vetheva lve
cap of the tyre.
R Press down the me tal insert in theva lve using
a pointed object, e.g. a pen.
R Screw theva lve cap onto theva lve.
% V
V ehicles wit
ehicles wit h adjust
h adjustable load com
able load com par
partment
tment
0oor:
0oor: always st owthe de0ated emer gency
spa rewheel in the lo wer position on the
adjustable load compartment 0oor.
Obser vethefo llowing no tes on /tting an emer-
ge ncy spa rewheel:
R The maximum permissible speed with an
emer gency spa rewheel /tted is 80 km/h.
R Do not /t the emer gency spa rewheel with
snow chains.
R Replace the emer gency spa rewheel aTer six
ye ars at the latest, rega rdless of wear.
R Check the tyre pressure of the emer gency
spa rewheel /tted. Cor rect the pressure as
necessar y.
% The speci/ed tyre pressure is stated on the
label of the emer gency spa rewheel. Wheels and tyres
389
389

VIN and engine number
VIN and engine number
1
Engine number stamped into the crankcase
2 VIN (vehicle identi/cation number) stamped
into the crossmember
3 VIN (vehicle identi/cation number) as a label
at the lo wer edge of the windscreen
Onl
Onl y f y for cert
or cert ain countr
ain countr ies:
ies:the VIN as a label at
th e lo wer edge of windscreen 3is only available
in some countries. Further information can be
obtained at a quali/ed specialist workshop. Oper
Oper
ating
ating 0uids
0uids N
No
ot
tes on oper
es on oper ating
ating0uids
0uids &
W
WARNING
ARNING Risk of injury from operating
0uids harmful toyour health
Operating 0uids may be poisonous and harm-
ful toyour health. #
Obser vethete xt on the original contain-
ers when using, storing or disposing of
operating 0uids. #
Always store operating 0uids sealed in
th eir original containers. #
Alwayske ep children away from operat-
ing 0uids. +
ENVIR ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEPollution of the
environment due toirre sponsible disposal
of operating 0uids Incor
rect disposal of operating 0uids can
cause considerable damage tothe environ-
ment. #
Dispose of operating 0uids in an environ-
mentally responsible manner. Operating 0uids include
thefo llowing:
R fuels
R DeNOx agent AdBlue ®
forex haust gas aTer-
treatment
R lubricants
R coolant
R brake 0uid
R windscreen washer 0uid
R climate cont rol system refrigerant
Only use products appro vedby Mercedes-Benz.
Damage caused bythe use of products that ha ve
not been app rove d is not co veredby the
Mercedes-Benz warranty or goodwill gestu res.
The operating 0uids appr ovedby Mercedes-Benz
can be identi/ed bythefo llowing inscriptions on
th e container:
R MB-F reigabe (e.g. MB-F reigabe 229.51)
R MB-Appr oval (e.g. MB -Appr oval 229.51) 396 396
Te
ch nical data

R
R
oof load
oof load Model
Model
Maximum r
Maximum roof load
oof load
All models 75 kgHigh-v
High-v
olt
oltag
age batt
e batt er
ery (plug-in h
y (plug-in h ybr
ybrid)
id) N
No
ot
tes on t
es on t he pow
he pow er suppl
er suppl y f
y for v
or v ehicles wit
ehicles wit h a
h a
high-v
high-v olt
olt ag
age batt
e batt ery
ery
In accordance with European standard
EN 17186:2019 vehicle identi/ers are located on
th eve hicle in thefo llowing places:
R Onthe inside of the soc ket 0ap
R Onthech arging cable connector
In addition, charging stations in European coun-
tries are equipped with ene rgy supp lyidenti/ers.
Yo u can rech arge your vehicle at charging stations
where thech arging station identi/er cor responds
to theve hicle identi/er.
Fo r fur ther information on charging the high-volt-
age batter y,referto the "Charging the high-volt-
age battery" section (/ page 198). 1
Supply type: AC
St andard: EN 62196-2
St yle: type 2
Plug type: charging cable soc ket and vehicle
plug
Vo ltage range: 480 V RMS
2 Supply type: DC
Standard: EN 62196-3
St yle: FF
Plug type: charging cable soc ket and vehicle
plug
Vo ltage range: 50 V to500 V
3 Supply type: DC St
andard: EN 62196-3
St yle: FF
Plug type: charging cable soc ket and vehicle
plug
Vo ltage range: 200 V to920 V
Missing values werenot available at the time of
going topress.
Maximum batt
Maximum batt er ery capacity and c
y capacity and c har
harging times
ging times B 250 e
B 250 e
Ty
pe Lithium-ion
Maximum energy content 15.6 kWh
Ra nge in electric-only mode
Cha rge time – mode 4
with appr ox. 22 kW charging
capacity App
rox. 25
min
Char getime – mode 3
with 7.4 kW charging capacity App
rox. 1 h
45 min Te
ch nical data
407 407

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
0075
Front left malfunction Con-
sult workshop (examp le) *T
he cor responding restraint system is malfunctioning (/ page 47). &
W WARNING
ARNING Risk of injury due tomalfunctions in there straint system
Co mp onents in there straint system ma y be activated unintentionally or not deploy as intended in an accident. #
Have there straint system checked and repaired immediately at a quali/ed specialist workshop. Plug-in h
Plug-in h
ybr
ybrid:
id: &
D
DAN
AN GER
GER Risk of fatal injuries due torestraint system malfunctions
Co mp onents in there straint system ma y be activated unintentionally or not deploy as planned in an accident. In
th eeve nt of an accident, the high-voltage on-board electrical system may not be deactivated as intended.
Yo u may su.er an electric shock if youto uch the damaged components of the high-voltage on-board electrical
system. #
Have there straint system checked and repaired immediately at a quali/ed specialist workshop. #
ATer an accident, switch o. theve hicle immediatel y.414
414
Display message
s andwarning/indicator lamps