2021 MERCEDES-BENZ B-CLASS HATCHBACK air condition

A
Vehicles with THERM ATIC operating unit
(with/wi thout stationary heater): 008Fsets
th e air distribution
Ve hicles with THERM OTRO NIC operating unit
(with/wi thout stationary heater): 007C
adjusts temp erature on front passenger side Oper
Oper
ating t
ating t he climat
he climat e contr
e control syst
ol system
em Switc
Switc
hing climat
hing climat e contr
e control
olon/o.
on/o. #
T
To switc
o switc h on:
h on:setthe air0ow toleve l 1 or
higher using theH button. #
T
To switc
o switc h
ho.:
o.: setthe air0ow toleve l 0 using
th eH button.
If climate control is switched o., the windo ws
may mist up more quickl y.Switch climate control
o. only brie0 y. Switc
Switc
hing t
hing t he A/C function
he A/C function on/o.
on/o. using t
using the air
he air
conditioning contr
conditioning contr ol panel
ol panel The A/C
function heats, cools and dehumidi/es
th eve hicle's interior air. #
Press the005A/0056 button.
Switch o. the A/C function only brie0y; other-
wise, the windo wsmay mist up more quickl y.
Condensation may drip from the underside of the
ve hicle when cooling mode is active. This is not
indicati veof a fault. Calling up t
Calling up t
he air conditioning menu
he air conditioning menu Calling up t
Calling up t
he air conditioning menu using t
he air conditioning menu using t he
he
multimedia syst
multimedia syst em
em #
Select one of thete mp erature displa ysatthe
lo we r edge of the media displa y.
Calling up t
Calling up t he air
he air-conditioning menu using t
-conditioning menu using t he
he
butt
butt on on t
on on t he climat
he climat e contr
e control panel
ol panel #
Press theA button on the climate control
panel. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the A/C function via t
he A/C function via t he
he
multimedia syst
multimedia syst em
em Multimedia system:
4 Climate menu 5
First row of seats
The A/C function heats, cools and dehumidi/es
th eve hicle's interior air. #
Select A/C. Se Se
tting climat
tting climat e contr
e control t
ol to aut
o aut omatic mode
omatic mode In automatic mode,
the set temp erature is con-
trolled and maintained at a constant le velby the
air suppl y. #
Press the0058 button. #
T
To switc
o switc h t
h t o manual mode:
o manual mode: pressthe008F or
0058 button.
In automatic mode, you can choose between /ve
di.erent air quantities using theH button.
Au tomatic mode is retained. 158
158
Climate control

Se
Se
tting t
tting t he air dis
he air distr tribution
ibution Multimedia system:
4 Climate menu #
Call up the air conditioning menu
(/ page 158). #
Select a row of seats. #
T
To se
o se t t
t the air dis
he air dis tr
tribution:
ibution: select0061,009C
or 009B. #
Set the air0o w.
% Several air distribution options can be selec-
te d at the same time, forex ample toset the
climate cont rolfo rth e windscreen and the
fo ot we lls simultaneousl y.
The 0061 climatecont rolfo rth e windscreen
can only be selected forth e /rst seat row. Switc
Switc
hing t
hing t he sync
he sync hr
hronisation functiononisation function on/o.
on/o. via
via
t
t he air conditioning contr
he air conditioning contr ol panel
ol panelClimate control can be set centrally using
the syn-
ch ronisation function. The temp erature and air
distribution settings forth e driver's side will be adop
ted automatically forth e front passenger
side. #
Press the0 button.
The synchronisation function will be deactivated if
th e settings for one of theot her climate zones are
ch anged. Switc
Switc
hing t
hing t he sync
he sync hr
hronisation function
onisation function on/o.
on/o.via
via
t
t he multimedia syst
he multimedia syst em
em Multimedia system:
4 Climate menu 5
First row of seats
Climate cont rol can be set centrally using the syn-
ch ronisation function. The driver's settings for
te mp erature, air quantity and air distribution are
adop ted automatically for all climate zones. #
Select SYNCand switch on or o.. Demis
Demisting t
ting the windo ws
he wind ows W
W
indow
indow s mist
s mist ed up on t
ed up on t he inside
he inside #
Press the0058 button. #
Ifth e windo wscontinue tomist up: press the
0064 button.
W
W indow
indow s mist
s mist ed up on t
ed up on t he outside
he outside #
Switch on the windscreen wipers. #
Press the0058 button. Switc
Switc
hing air
hing air -r
-r ecir
ecir culation mode
culation mode on/o.
on/o. #
Press the0072 button.
The interior air will be recirculated.
Air-recirculation mode automatical lyswitches to
fresh air mode aTer a while.
% If air-re circulation mode is switched on, the
wind ows may mist up more quickl y.Switch on
ai r-re circulation mode only brie0y. Switc Switc
hing r
hing r esidual heat
esidual heat on/o.
on/o. R
R
eq
eq uir
uir ements:
ements:
R theve hicle is par ked.
% Only vehicles with a diesel engine can use
re sidual heat. Climate cont
rol
159
159

Pr
Pr
e-entr
e-entr y climat
y climat e contr
e control at depar
ol at depar tur
ture time
e time Pr
Pr
e-entr
e-entr y climat
y climat e contr
e control f
ol for depar
or depar tur
ture time func-
e time func-
tion
tion &
W
W ARNI NG
ARNI NGRisk of fatal injury due toexpo-
sure toextreme heat or cold in theve hicle
If persons, particular lych ildren, are subjected
to prolonged exposure tointense heat or cold,
th ere is a risk of se vere injury or even death. #
Never lea vepersons, particular lych il-
dren, unattended in theve hicle. The
vehicle interior can be air conditioned when
th eve hicle is par ked.
When theve hicle is connected topowe r supply
equipment, priority is given tocharging the high-
vo ltage battery toa speci/ed minimum charge.
The running time of pre-entry clima tecont rol may
be reduced under thefo llowing conditions:
R The vehicle is not connected topowe r supply
equipment.
R The high-voltage battery is not charge d su1-
cient ly. Wi
th active pre-ent ryclimate cont rol,th ech arge
le ve l of the high-voltage battery may be reduced,
ev en if thech arging cable connector is connec-
te d.
Fo r cooling, thefo llowing functions are activated
as needed:
R Automatic climate control
R Blower
R Seat ventilation
Fo r heating, thefo llowing functions are activated
as needed:
R Automatic climate control
R Blower
R Seat heating
R Steering wheel heater
R Mirror heater
R Rear wind owheater Se
Se tting pr
tting pr e-entr
e-entry climat
y climat e contr
e contr ol f
ol for depar
or depar ture
ture
time
time
Multimedia system:
4 Climate menu 5
Pre-entry climate ctrl
Se Se tting a single depar
tting a single depar tur
ture time
e time #
Select ONCE. #
Set a departure time.
Changing t
Changing t he activ
he active depar
e departur
ture time
e time #
Select the pen icon next tothe displa yed
departure time. #
Set a departure time.
Se
Se tting t
tting t he w
he week
eekpr
pro/le
o/le #
Select WEEK PROFILE . #
Set the desired departure times, e.g. every
day at 8 a.m.
Selecting t
Selecting t he zone
he zone #
Select Z. Climate control
161
161

#
Select Driver's seat only.
If th eDriver's seat only setting is deactivated,
pre-entry climate control take s place forthe
entire vehicle.
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating pr
ating pre-entr
e-entry climat
y climat e contr
e contr ol
ol
f
f or depar
or depar tur
tur e time
e time
R
R eq
eq uir
uir ements:
ements:
R The high- voltage battery is charge d su1-
cient ly.
R The function has been activated via the multi-
media system. #
T
To activ
o activ at
ate:
e: set the departure time
(/ page 161).
Pre-entry climate control for departure time
switches on a maximum of 55 minutes before
th e selected departure time. It will remain
active for ano ther /ve minutes if the departure
is dela yed. #
T To deactiv
o deactiv at
ate:
e: push the003B button up or
down.
The following functions will remain active once the
ve hicle has been star ted:
R Seat heating R
Seat ventilation A
A ctiv
ctiv ating/deactiv
ating/deactiv ating immediat
ating immediat e pr
e pre-entr
e-entr y cli-
y cli-
mat
mat e contr
e contr ol
ol &
W
WARNI NG
ARNI NGRisk of fatal injury due toexpo-
sure toextreme heat or cold in theve hicle
If persons, particular lych ildren, are subjected
to prolonged exposure tointense heat or cold,
th ere is a risk of se vere injury or even death. #
Never lea vepersons, particular lych il-
dren, unattended in theve hicle. Air-conditioning of
theve hicle interior can con-
tinue for up to50 minutes, e.g. if the journey is
inter rupted. The colours of
the indicator lamp ha vethefo llo w-
ing meanings:
R Blue: Blue: cooling is activated.
R R
Red:
ed: heating is activated.
R Y
Yello w:
ello w:the departure time has been preselec-
te d. #
Set the desired temp erature using the 0082
button. 162
162
Climate control

R
R
eq
eq uir
uir ements:
ements:
R The fuel tank is at least 00C4full. #
Set the desired temp erature using the0082
button. #
Press button 1.
The red or blue indicator lamp on button 1
will light up or go out. The colours of
the indicator lamp ha vethefo llo w-
ing meanings:
R Blue:
Blue: stationary ventilation is switched on.
R R Red:
ed: the stationary heater is switched on.
R Y
Yello w:
ello w:the departure time is preselected.
The stationary heater/ventilation will switch o.
automatically aTer 50 minutes.
Oper Oper ation using t
ation using t he app:
he app:the stationary heater/
ve ntilation can also be ope rated via the Mercedes
me connect app. You can /nd fur ther information
in the separate Owner's Manual at https://
moba.i.daimler.com/mar kets/ece-r ow/baix/
ca rs/connectme/en_GB/#em otions/
St artsei te.html.
Se
Se tting t
tting t he st
he stationar
ationar y heat
y heater/v
er/ventilation via t
entilation via t he
he
multimedia syst
multimedia syst em
em
Multimedia system:
4 Climate menu 5
Auxiliary heating #
Call up the air conditioning menu
(/ page 158). #
Select Auxiliary heating . Selecting t
Selecting t
he depar
he departur
ture time
e time #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX.
Se
Se tting t
tting t he depar
he depar tur
ture time
e time #
Select the time TIME A: XX, TIME B: XXor
TIME C: XX. #
Select the pen beside the time. #
Set a time. Air v
Air v
ents
ents A
A
djus
djus ting t
ting t he fr
he front air v
ont air v ents
ents &
W
WARNING
ARNING Risk of burns or frostbite due to
being too close tothe air vents
Ve ry hot or very cold air can 0ow from the air
ve nts. #
Make sure that all vehicle occupants
alw ays maintain a su1cient dis tance
from the air vents. #
If necessar y,direct the air0ow toano ther
area of theve hicle interior. 164
164
Climate cont
rol

R
avoid sudden steering mo vements
R brake careful ly
% Also obser vethe no tes on regula rly ch ecking
wheels and tyres (/ page 374).
N
No ot
tes on dr
es on dr iving t
iving thr
hrough w
ough w at
ater on t
er on t he r
he r oad sur-
oad sur-
f
f ace
ace
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage.
Obser vethefo llowing if you must drive thro ugh
wa ter:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at a maximum speed of 10 km/h; water
can otherwise enter theve hicle interior or
engine compartment.
R Vehicles tr avelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking e.ect of the brakes is reduced aTer
fo rd ing. Brake carefully while paying attention toth
e tra1c conditions until braking po wer has been
fully restored. EC
EC
O st
O st ar
art/st
t/st op function
op function EC
EC
O st
O st ar
art/st
t/st op function
op function
% The ECO start/stop function is not available
in all drive prog rams, depending on the
engine. Obser vethe status display in the
inst rument display forth is.
If all vehicle- related conditions for an automatic
engine stop are met, the engine is switched o.
automaticall y:
R V
V ehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: You brake
th eve hicle, shiT into neutral 005Cwhen tr avel-
ling at a low speed and then release the clutch
pedal.
R V
V ehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: Yo u
brake theve hicle toa standstill in transmis-
sion position 005Bor005C.
R You activate the HOLD function or engage
transmission position 005D. %
Ifth e system de tects an intelligent stop inhibi-
to r,fo rex ample, a stop sign, the engine will
not stop.
If yo u activate the HOLD function or engage
th e park position 005D,the engine can be
switched o. in spite of an intelligent stop
inhibitor.
% In transmission position 005E,the engine is not
switched o. automatically even when the
HOLD function is switched on.
The engine restarts au tomatically in thefo llowing
cases:
R V
V ehicles wit ehicles wit h manual tr
h manual tr ansmission:
ansmission: Yo u
depress the clutch pedal.
R V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: Yo u
shiT into transmission position 005Bor005E.
R You depress the accelerator pedal.
R An automatic vehicle engine start is requ ired.
St atus displ ayinthe inst rument displa y:
R The symbol 00D6(gre en) appears when the
ve hicle is at a standstill: The engine was
switched o. bythe ECO start/s top function. 176
176
Driving and parking

Char
Char
ging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery (plug-in
y (plug-in
h
h ybr
ybr id)
id) N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt ery
ery *
N
NOOTE
TE High-voltage battery damage due to
leaving theve hicle idle for lengt hyperiods
of time Lithium-ion batteries
experience a natural self-
dischar ge.
Exhausti vedischarging can therefore occur if
th eve hicle is idle for se veral months. This can
damage the high-voltage batter y.#
Toavo id damage, please obser vethefo l-
lowing recommendations when handling
th e high-voltage batter y.*
N
NO
OTE
TE Accelerated ageing of the high-volt-
age battery As a
result of its basic characteristics, the
storage capacity of and the amount of energy
av ailable from the high-voltage battery
decrease over the course of its life. Due to th
is, bo th the maximum electrical range that
can be achie vedby theve hicle and its maxi-
mum elect rical output can be impaired.
The following factors could accelerate the age-
ing of the high-voltage batter y:
R a high le vel of charge , especially if the
ve hicle is idle for a lengt hyperiod of time
R frequent rapid charging with direct cur rent
(mode 4)
R leaving theve hicle idle for lengt hyperiods
at high ambient temp eratures #
Toavo id accelerated ageing, please
obser vethefo llowing recommendations
when handling the high-voltage batter y. Re
commendations when handling the high-voltage
batter y:
R Only charge the high-voltage battery with
direct cur rent (mode 4) if necessar y.
R If leaving theve hicle idle for lengt hyperiods,
park up theve hicle with a high- voltage battery
ch arge leve l between 25% and 30%. Do not ke
ep the high-voltage battery continuously
connected topowe r supply equipment.
R If leaving theve hicle idle for lengt hyperiods of
time avoid, if possible, high ambient temp era-
tures.
R Check the high-voltage battery's charge level
ev ery six weeks (/ page 214).
R Char gethe high-voltage battery if thech arge
le ve l is below 15%.
R Do not disconnect the 12 V battery even if the
ve hicle is leT idle for a lengt hyperiod. Other-
wise, the condition of theve hicle's high- volt-
age battery cannot be monitored.
Depending on the equipment and national ver-
sion, your vehicle is equipped with one of thefo l-
lowing vehicle soc kets:
R Type 1 forch arging with alternating cur rent
(mode 2/3)
R Type Combo 1 forch arging with alternating
cur rent (mode 2/3) and charging with direct
cur rent (mode 4)
R Type 2 forch arging with alternating cur rent
(mode 2/3) 198
198
Driving and parking

R
the electric parking brake is not applied N
No
ot
tes on par
es on par king up t
king up the v
he vehicle
ehicle If
yo u lea vetheve hicle par ked up for longer than
six weeks, it may su.er damage thro ugh disuse.
The 12 V battery may also be impaired or dam-
aged byheavy discharging.
V
V ehicles wit ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: do not dis-
connect the 12 V battery even if theve hicle is leT
idle for a lengt hyperiod.
% Further information can be obtained at a
qu ali/ed specialist workshop. S
S
t
tandb
andb y mode (e
y mode (e xt
xtension of t
ension of t he st
he start
arter batt
er batt er
ery's
y's
per
per iod out of use)
iod out of use) S
S
t
tandb
andb y mode function
y mode function
% This function is not available for all models.
If standby mode is activated, energy loss will be
minimised during extended periods of non-opera-
tion. St
andby mode is characterised bythefo llowing:
R The star ter battery is preser ved.
R The maximum non-operational time appears in
the media displa y.
R The connection toonline services is inter rup-
te d.
R The ATA (anti-theT alarm system) is not availa-
ble.
R The interior pr otection and tow- aw ay protec-
tion functions are not available.
R The function for de tecting collisions on a
par kedve hicle is not available.
If th efo llowing conditions are ful/lled, standby
mode can be activated or deactivated using the
multimedia system:
R The vehicle is switched on.
R The vehicle has not been star ted.
Exceeding theve hicle's displ ayed non-operational
time may cause incon venience; i.e. it cannot be
guaranteed that the star ter battery will reliably
start theve hicle. Char
gethe star ter battery in thefo llowing situa-
tions:
R The vehicle's non-ope rational time must be
ex tended.
R The Battery charge insufficient for standby
mode messa geappears in the media displa y.
% Standby mode is automatically deactivated
when theve hicle is switched on.
A
A ctiv ctiv ating/deactiv
ating/deactiv ating st
ating standb
andby mode (par
y mode (par king up
king up
t
t he v
he v ehicle)
ehicle)
R
R eq
eq uir
uir ements:
ements:
R The engine is switched o..
Multimedia system: 4 © 5
Settings 5
Vehicle #
Activate or deactivate Standby mode. #
Select Yes. 222
222
Driving and parking