ECO mode MERCEDES-BENZ B-CLASS HATCHBACK 2021 Owner's Guide

&
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

*
N
NO
OTE
TE Engine damage caused byan inco r-
re ct oil /lter, incor rect oil or additi ves #
Do not use engine oils or oil /lters other
th an those which meet the speci/cations
necessary forth e prescribed service
inter vals. #
Do not alter the engine oil or oil /lter in
order toachie velonger change inter vals
th an prescribed. #
Do not use additives. #
Have the engine oil changed aTer the
prescribed inter vals. Mercedes-Benz
recommends having the oil
ch anged at a quali/ed specialist workshop.
Only use engine oils appr ovedfo ryo ur vehicle by
Mercedes-Benz.
P
P e etr
tr ol engines:
ol engines: for cer tain countries, di.erent
engine oils can be used in conjunction with
re duced maintenance inter vals. Further informa-
tion on di.erent engine oils can be obtained at a
qu ali/ed specialist workshop.
Quality and capacity of engine oil
Quality and capacity of engine oil
No No t f
t for plug-in h
or plug-in h ybr
ybrid:
id:
Engine oil
Engine oil speci/cations
speci/cations (pe
(petr
trol engines)
ol engines) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Appr ov
Approv al
al
All models 229.51, 229.52,
229.61, 229.71*, 229.72 Engine oil
Engine oil
speci/cations
speci/cations (diesel engines)
(diesel engines) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Approv
Approv al
al
All models 229.52, 229.61,
229.71*, 229.72 *
re commended for fuel consum ption
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil speci/ca-
tions mar ked in theta ble forth e lo westSA E vis-
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
% Ifth e engine oils listed in theta ble are not
av ailable, you may add a maximum of 1.0 litre
of thefo llowing engine oils once onl y.
V
V ehicles wit
ehicles wit h a pe
h a petr
trol engine:
ol engine: MB-Freigabe or
MB-Appr oval 229.31 or ACEA C3
V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: ACEA C3
No
No t f
t for plug-in h
or plug-in h ybr
ybrid:
id: 402
402
Te
ch nical data

Engine oil
Engine oil
/lling
/llingcapacity
capacity Model
Model
Capacity
Capacity
B 160
B 180, (manual and
automatic transmis-
sion)
B 200, (manual and
automatic transmis-
sion)
B 200 4MATIC 5.1 litres
B 250
B 250 4MATIC 5.5 litres
All other model s6 .8 litres The speci/e
d/lling capacity refers to an oil
ch ange with the oil /lter. Engine oil Engine oil
speci/cation
speci/cation (plug-in h
(plug-in hybr
ybrid)
id) Model
Model
MB-Fr
MB-Freig
eigabe or MB-
abe or MB-
Appr ov
Approv al
al
B 250 e2 29.51, 229.52,
229.61, 229.71*, 229.72 *
re commended forth e lo west possible fuel con-
su mp tion
To achie vethe lo west possible fuel consum ption,
it is recommended touse the engine oil speci/ca-
tions mar ked in theta ble forth e lo westSA E vis-
cosity class. Obser veany possible restrictions of
th e appr ovedSA E viscosity classes.
% Ifth e engine oils listed in theta ble are not
av ailable, you may add a maximum of 1.0 litre
of engine oils with MB-F reigabe or MB-
Appr oval 229.31 or ACEA C3 once onl y.
Engine oil capacity (plug-in h
Engine oil capacity (plug-in h ybr
ybrid)
id) Model
Model
Capacity
Capacity
B 250 e4 .5 litres The speci/e
d/lling capacity refers to an oil
ch ange with the oil /lter. N
No
ot
tes on br
es on br ak
ake
e0uid
0uid No
tethe inst ructions about operating 0uids
(/ page 396). &
W
WARNING
ARNING Risk of an accident due to
va pour poc kets form ing in the brake sys-
tem
The brake 0uid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake 0uid. If the boiling point is too lo w,
va pour poc kets may form inthe brake system
when the brakes are applied hard.
This impairs the braking e.ect. #
Have the brake 0uid rene we d at the
speci/ed inter vals. Ha
ve the brake 0uid regula rly re placed at a quali-
/ed specialist workshop.
Only use a brake 0uid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
331.0. Te
ch nical data
403 403

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions #
Request service personnel from the operator of thech arging station via the emer gency call button attached tothe
ch arging station or the emer gency call numbers.
Vehicle not currently being
charged Charging station
fault *A
malfunction has occur red in thech arging station or the RFID card is not recognised. #
Start thech arging process at a di.erent charging station.
or #
Have the RFID card checkedto ensure it is functioning.
Charging method currently
unavailable Please try
again or change charging
method *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Charging fault Please
change charging method
See Owner's Manual *A
temp orary malfunction has occur red in thech arging station. #
Wait until the malfunction has passed.
or #
Start thech arging process at a di.erent charging station.
Only electric drive availa-
ble Power limited *T
he fuel tank is em pty and the combustion engine is switched o.. The output of your vehicle is limi ted because you
are driving in elect ric mode. Display messages and
warning/indicator lamps
427
427

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences and0050
0050Solutions
Solutions
ç
- - - km/h *A
ctive Dis tance Assist DISTRONIC cannot be activated as not all activation conditions are ful/lled. #
Comply with the activation conditions of Active Distance Assist DISTRONIC (/ page 237).
ç suspended *I
fyo u depress the accelerator pedal be yond the setting of Active Distance Assist DISTRONIC, the system will switch to
passive mode (/ page 235).
ç Off *A
ctive Dis tance Assist DISTRONIC was deacti vated. If a warning tone also sounds, Active Distance Assist DISTRONIC
has deactivated automatically (/ page 237).
Active Distance Assist cur-
rently unavailable See Own-
er's Manual *A
ctive Dis tance Assist DISTRONIC is temp orarily una vailable.
The ambient conditions are outside the system limits (/ page 235).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
or Displ
aymessages and warning/indicator lamps
453 453

Side airbag.............................................. 52
Wi ndow airbag......................................... 52
Air0 ow
Air0ow
Setting................................................... 157
Alar
Alar m syst
m syst em
em
see ATA (anti-theT alarm system)
All-wheel dr
All-wheel dr ive
ive
see 4M ATIC
Ambient lighting
Ambient lighting Setting (MBUX multimedia system)........ .146
Andr
Andr oid A
oid A uto
uto
see Smartphone integ ration
Animals
Animals Pets in theve hicle.................................... 80
Anti-loc
Anti-loc k br
k braking syst
aking syst em
em
see ABS (Anti-lock Braking System)
Anti-skid c
Anti-skid c hains
hains
see Sn owchains
Anti-t
Anti-theT heTprot
pr otection
ection
Ad ditional door loc k................................. 84
Immobiliser............................................ 102
Anti-t
Anti-theT heTprot
pr otection
ection
see ATA (anti-theT alarm system) Anticipat
Anticipat
or
ory occupant pr ot
y occupant pr otection
ection
see PRE-SAFE ®
(anticipatory occu-
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay
Apple CarPlay ®
®
see Smartphone integ ration
Assist
Assist ance syst
ance syst ems
ems
see Driving saf ety sy stem
ASS YS
ASS YST PL
T PL US
US
Battery disconnection period s................ 337
Displaying the service due dat e.............. 336
Fu nction/no tes...................................... 336
Re gular maintenance work..................... 336
Special service requ irements................. 336
AT
ATA A(anti-t
(anti-theT heTalar
alarm syst
m syst em)
em)
Deactivating the alarm........................... 103
Fu nction................................................ 102
Interior pr otection function.....................1 04
Priming/deactivating interior pr otec-
tion........................................................ 104
Priming/deactivating tow- awa y pro-
te ction................................................... 104
To w- awa y protection function................. 103 A
A TTENTION ASSIST
TTENTION ASSIST
Function................................................ 230
Setting.................................................. .232
System limitations.................................. 230
A
A tt
tt ention assist
ention assist ant
ant
see ATTENTION ASSIST
A A ut ut hor
hor ised w
ised w ork
orkshop
shop
see Quali/ed specialist workshop
A
A ut
ut omatic car w
omatic car w ash mode
ash mode
Ac tivating............................................... 345
A
A ut
ut omatic co-dr
omatic co-dr iv
iver airbag
er airbag shut
shuto.
o.
Fu nction of co-driver airbag shuto........... 55
A
A ut
ut omatic dist
omatic dist ance contr
ance control
ol
see Active Distance Assist DISTRONIC
A
A ut
ut omatic dr
omatic dr iving lights
iving lights ................................ 139
A
A ut
ut omatic engine st
omatic engine st art
art
see ECO start/stop function
A
A ut
ut omatic engine st
omatic engine st op
op
see ECO start/stop function
A
A ut
ut omatic fr
omatic fr ont passeng
ont passeng er airbag
er airbagshut
shut o.
o.
PA SSENGER AIR BAG indicator la mps...... 57
A
A ut
ut omatic measur
omatic measur es
esaTer
aTer an accident
an accident........... .60 Index
497
497

Ac
tivating/deactivating the A/C func-
tion (control panel).................................1 58
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 158
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 59
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 159
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 59
Au tomatic control................................. .158
Calling up the air conditioning menu....... 158
Demisting the windscreen...................... 157
Demisting windo ws................................ 159
Fr ont air vents........................................ 164
Immediate pre-entry clima tecont rol....... 162
No te...................................................... 157
Pre-entry climate control at depa rture
time.......................................................1 61
Pre-entry climate control using theke y... 160
Re ar air vents......................................... 165
Re sidual heat......................................... 159
Setting (MBUX multimedia system)......... 158
Setting the air distribution...................... 157
Setting the air0ow.................................. 157 Setting
theve hicle interior temp era-
ture....................................................... 157
St ationary heater/ ventilation................. 163
Switching there ar wind owheater
on/o.................................................... 157
THERM ATIC cont rol panel...................... 157
THERMOTRONIC control panel............... 157
Ve ntilating theve hicle (con venience
opening).................................................. 96
Clot
Clot hes hook hes hook ................................................ 129
Co-dr
Co-dr iv
iver airbag
er airbag shut
shuto.
o.
see Automatic co-driver airbag shuto.
Coc
Coc kpit
kpit
Overview.............................................. 6, 10
Co.ee
Co.ee cup symbol
cup symbol
see ATTENTION ASSIST
Collision det
Collision det ection (park
ection (parked v
ed vehicle)
ehicle)
Information............................................ 221
Combination switch
Combination switch .................................... .140
Com
Com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation................... 394
Com
Com put
puter
er
see On-board computer
Conv
Conv enience closing
enience closing...................................... 97 Conv
Conv
enience opening
enience opening..................................... 96
Coolant (engine)
Coolant (engine) Levelch eck............................................ 342
No tes..................................................... 404
Cooling
Cooling see Climate control
Cop
Cop yr
yright
ight....................................................... 45
Cor
Cor ner
nering light
ing light............................................. 142
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 273
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes...................................... 226
Cr
Cr uise contr
uise contr ol
ol
Ac tivating............................................... 233
Buttons.................................................. 233
Calling up a speed................................. 233
Deactivating........................................... 233
Fu nction................................................ 232
Maximum design speed.......................... 182
Re quirements:....................................... 233
Selecting............................................... 233
Setting a speed...................................... 233 Index
501 501

G
G
Gar
Gar ag
age door opener
e door opener
Clearing the memory.............................. 218
Gar
Gar ag
age door openers
e door openers
Opening/closing the door......................2 18
Prog ramming buttons............................. 216
Re solving problems................................ 218
Syn chronising thero lling code................ 217
Gear
Gear shiT
shiT r
recommendation
ecommendation................... 187, 190
Genuine par
Genuine par ts
ts................................................ 25
Glide mode
Glide mode.................................................. 190
Gr
Gr oss mass
oss mass.................................................. 394 H
H
Handbr
Handbr ake
ake
see Electric parking brake
Handling c
Handling c har
haract
acter
eris
istics (unusual)tics (unusual) ................ 374
HANDS-FREE A
HANDS-FREE A CCESS
CCESS................................... 92
Hazar
Hazar d w
d war
arning lights
ning lights................................... 141
Head r
Head r es
estrtraint
aint
Fr ont (adjusting mechanically)................ 111
Re ar (adjusting)..................................... .112 Re
ar (removing//tting)........................... 112
Head-up displ ay
Head-up display
Adjusting brightness (on-board com-
puter).................................................... 286
Ad justing display elements (on-board
co mp uter).............................................. 286
Care...................................................... 349
Fu nction................................................ 285
Menu (on-boa rdcomputer)..................... 286
Operating the memory function.............. 118
Setting the position (on-board com-
puter).................................................... 286
Switching on/o.....................................2 87
Headlam Headlam p
p0ashing
0ashing ........................................ 140
Headlam
Headlam ps
ps
see Automatic driving lights
Heating
Heating see Climate control
Help call
Help call see Mercedes-Benz emer gency call system
High beam
High beam Activating/deactivating.......................... 140
High beam
High beam see Adaptive Highbeam Assist see
Adaptive Highbeam Assist Plus
High-pr
High-pr essur
essure cleaner (car
e cleaner (car e)
e)........................ 345
High-v
High-v olt
oltag
age batt
e batt ery
ery
Char geleve l displa y............................... 214
Charg ing cable control panel.................. 203
Charging duration.................................. 407
Connection types...................................4 07
Ending thech arging process (alternat-
ing cur rent, mode 2/3).......................... 209
Ending thech arging process (direct
cur rent, mode 4).................................... 213
Energy 0ow displa y................................. 302
General no tes on chargin g.................... .198
Indicator lamps on vehicle soc ket........... 205
No tes on charging (charging station,
mode 3)................................................ .201
No tes on charging (fast charging sta-
tion, mode 4)......................................... 202
No tes on charging (mains soc ket,
mode 2)................................................. 200
No tes on charging (wallbox, mode 3)...... 201
Ra nge.................................................... 407
Setting the maximum possible charg-
ing cur rent (mains soc ket)...................... 203 Index
511 511

Problem................................................. 102
Ra in-closing feature............................... 101
Smar
Smar tphone
tphone
see Smartphone integ ration
see Telephone
Smar
Smar tphone int
tphone int egr
egration
ation
Overview................................................ 322
Sno
Sno w c
w chains
hains................................................3 74
Soc ke
Soc ket (12 V)
t (12 V)
Boot/luggage compartment................... 133
Fr ont centre console.............................. 133
SoTw SoTw are
areupdate
update
System updates..................................... 297
Sound
Sound PRE- SAFE®
Sound................................... 59
Sound menu
Sound menu Functions overview................................ 335
Spar
Spar e wheel
e wheel
see Emer gency spa rewheel
Specialis Specialis t w t work
ork shop
shop
see Quali/ed specialist workshop
Speci/c
Speci/c absorp
absorption r
tion rate
ate ................................. 29 Speed Limit Assist
Speed Limit Assist
Function/no tes...................................... 249
Setting................................................... 250
System limitations.................................. 249
Speed limit f
Speed limit f or wint
or winter tyr
er tyres
es
Setting................................................... 235
St St andb andb y mode
y mode
Ac tivating/deactivating.......................... 222
Fu nction................................................ 222
St
St anding lights
anding lights............................................ .138
St
St ar
art-o.
t-o. assist
assist
Ac tivating............................................... 230
Fu nction................................................ 230
St
St ar
art/st
t/st op butt
op butt on
on
Pa rking theve hicle................................. 215
St arting theve hicle............................... .169
Switching on the po wer supply/vehicle.. 168
St
St ar
art/st
t/st op function
op function
see ECO start/stop function
St
St art
art er batt
er batt ery
ery
Charging (Remo teOnline)..................... .171
St
St ar
arting
ting
see Vehicle S
S t
tar
ar ting assist
ting assist ance
ance
see Jump-start connection
St
St ar
arting-o.
ting-o. aid
aid
see Hill Start Assist
St
St ationar
ationar y heat
y heater/v
er/ventilation
entilation
Ac tivating/deactivating (control panel)... 163
Setting (MBUX multimedia system)......... 164
S
S TEER C
TEER C ONTR
ONTROL
OL
Fu nction/no tes...................................... 227
St
St eer
eer ing wheel
ing wheel
Ad justing (manual ly)............................... 114
Buttons.................................................. 282
Care...................................................... 349
St eering wheel heater............................ 115
St St eer
eer ing wheel
ing wheel g
gear
ear shiT
shiT paddles
paddles .................. 189
St
St eer
eer ing wheel heat
ing wheel heat er
er
Ac tivating/deactivating.......................... 115
St ow
St owag age ar
e ar eas
eas
see Loading
see Stow age space
St ow
St owag age com e com par
partments
tments
see Loading
see Stow age space Index
523 523

S
S
t
to
o w
w ag
ag e space
e space
Armrest................................................. 121
Centre console..................................... .121
Door...................................................... 121
Glo vecompartmen t............................... 121
S
S tr
tr ee
ee t names and house numbers
t names and house numbers
Displaying.............................................. 306
Sugg Sugg es estionstions
Con/guring............................................ 296
Sulphur cont
Sulphur cont ent
ent........................................... 397
Surr
Surr ound lighting
ound lighting
Switching on/o..................................... 146
Surr
Surr ound V
ound V iew
iew
see 360° Camera
Suspension
Suspension Adaptive damping adjustmen t................257
Damping characteristics........................ .257
S
S VHC (subst
VHC (subst ances of v
ances of ver
ery high concer
y high concer n)
n)........40
Switc
Switc h-o.
h-o.dela
delay time
y time
Exterior.................................................. 145
Interior.................................................. .147
Sync
Sync hr
hronisation function
onisation function
Ac tivating/deactivating (control panel)... 159 Ac
tivating/deactivating (MBUX multi-
media system)....................................... 159
Syst
Syst em se
em se ttings
ttings
Overview of the system settings menu.... 297
Re set function (MBUX multimedia sys-
te m)....................................................... 301
Syst
Syst em se
em se ttings
ttings
see Language T
T
T
T ailg
ailg ate
ate
Closing................................................... .90
HANDS-FREE ACCESS............................. 92
Limiting the opening angle....................... 94
Opening................................................... 89
Unlocking (emer gency key)...................... 94
T
T ailpipes (car
ailpipes (car e)
e)............................................ .348
T
T ak
ak e-bac
e-bac k of end-of-lif
k of end-of-lif e v
e vehicles
ehicles
Pr otection of the environment.................. 24
T
T ank cont
ank cont ent
ent
Ad Blue ®
................................................ .401
Fu el....................................................... 400
Re ser ve(fuel)........................................ .400 T
T ec
ec hnical data
hnical data
Axle load (trailer operation).................... 410
Component-speci/c information............ 394
Fa stening points (t railer hitch)................ 408
Information............................................ 392
Mounting dimensions (trailer hitch)........ 408
No tes (trailer hitch)................................ 408
Overhang dimension (trailer hitch)......... .408
Re gula tory radio identi/cation (Indo-
nesia).................................................... 394
Re gula tory radio identi/cation of
small component s.................................. 394
To ngue weight........................................ 410
To wing capacity (trailer operation ).......... 409
T T elephone
elephone
Connecting a mobile phone (Passke y).... 314
Connecting a mobile phone (Secure
Si mp lePa iring)....................................... 314
Fu nctions in thete lephone menu............ 314
No tes..................................................... 311
No tes on wireless charging (mobile
phone)................................................... 134
Operating modes................................... 313
Te lephone menu overview...................... 313
Wi reless charging (mobile phone)........... 135 524 524
Index