2021 MERCEDES-BENZ A-CLASS SALOON cooling

A
Vehicles with THERM ATIC operating unit
(with/wi thout stationary heater): _sets
th e air distribution
Ve hicles with THERM OTRO NIC operating unit
(with/wi thout stationary heater): q
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 the¿/Á 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 theà button. #
T
To switc
o switc h t
h t o manual mode:
o manual mode: pressthe_ or
à button.
In automatic mode, you can choose between /ve
di.erent air quantities using theH button.
Au tomatic mode is retained. 148
148
Climate control

imately 30 minutes, depending on
thete mp era-
ture set. #
T
To activ
o activ at
ate:
e: press the Á button.
Re sidual heat will be switched o. automaticall y.Pr
Pr
e-entr
e-entr y climat
y climat e contr
e control using t
ol using t hekey
he key F
F
unction of pr
unction of pr e-entr
e-entry climat
y climat e contr
e control using t
ol using t he
he
key
key
Before entering theve hicle, the driver's seat area
or the whole vehicle interior can be brie0y pre-
wa rmed or pre-cooled.
When pre-cooling, thefo llowing functions are acti-
va ted as needed:
R Automatic climate control
R Blower
R Seat ventilation
When pre-heating, thefo llowing functions are acti-
va ted as needed:
R Automatic climate control
R Blower
R Seat heater 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 control via t
ol via thekey
he key
Multimedia system:
4 Climate menu 5
Pre-entry climate ctrl
Switc
Switc hing
hingon/o.
on/o. #
Select Z. #
Select Pre-entry climate control via key.
Switc
Switc hing pr
hing pr e-entr
e-entry climat
y climat e contr
e control via t
ol via thekey
he key
on/o.
on/o.
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
T o switc
o switc h on:
h on:unlock theve hicle.
The climate cont rol functions are activated for
up to/ve minutes for pre-heating and pre-
cooling. Pre-entry climate control via
theke y cann otbe
activated more than twice when theve hicle is
switched o.. #
T
To switc
o switc h
h o.:
o.: push the& button up or
down.
The following functions will remain active once the
ve hicle has been star ted:
R Seat heating
R Seat ventilation 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 f or depar
or depar tur
ture time func-
e time func-
tion
tion &
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. 150
150
Climate cont
rol

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 control f
ol f or 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
tur e 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. #
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 control
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 151).
Pre-entry climate control for departure time
switches on a maximum of 55 minutes before
th e selected departure time. It will remain Climate control
151 151

active
for ano ther /ve minutes if the departure
is dela yed. #
T
To deactiv
o deactiv at
ate:
e: push the& 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 w
button. #
Press button 1.
The red or blue indicator lamp on button 1
will light up or go out. S
S
t
tationar
ationar y heat
y heater/v
er/ventilation
entilation S
S
t
tationar
ationar y heat
y heater/v
er/ventilation function
entilation function
% The following function is equipment-depend-
ent.
R The air inside theve hicle is heated or ventila-
te dto the set temp erature.
R The air inside theve hicle cann otbe cooled
down to temperatures below the outside tem-
perature.
R Ifth e outside temp erature changes, ventilation
mode automatically switches toheating mode
or heating mode automatically switches to
ve ntilation mode.
The stationary hea ter and theex haust gas outl et
are situated in front of theright-hand front wheel. 152
152
Climate control

can start
theve hicle in emer gency ope ration
mode. Mar
ked space (e xample with cup holder without
co ver) #
Open the co ver of the mar ked space 2if
necessar y. #
Make sure that the mar ked space 2is
em pty. #
Remo vetheke y1 from theke yring. #
Place theke y1 inthe mar ked space 2on
th e symbol 3.
The vehicle will start aTer a short time.
When youre mo vetheke y1 from the mar ked
space 2,theve hicle can be driven. For fur-
th er engine starts ho wever,theke y1 must
be located in the mar ked space 2onthe
symbol 3during the entire journe y. #
Have theke y1 checked at a quali/ed spe-
cialist workshop.
If t
If t he v
he v ehicle does no
ehicle does no t st
t start:
art: #
Place theke y1 inthe mar ked space 2and
lea veitth ere. #
V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: Depress
th e clutch pedal. #
Depress the brake pedal and start theve hicle
using the start/s top button.
% You can switch on the po wer supply or the
ve hicle with the start/s top button. Obser
veany information rega rding display mes-
sages that can be displ ayed onthe inst rument
displa y. S
S
t
t ar
ar ting t
ting t he v
he vehicle via R
ehicle via R emot
emote Online Ser
e Online Ser vices
vices Cooling or heating t
Cooling or heating t
he v
he vehicle int
ehicle int er
erior bef
ior bef ore
ore
st
st ar
ar ting t
ting t he jour
he jour ney
ney
Ensu rethefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
R The star ter battery is su1ciently charge d.
Char
Char ging t
ging t he st
he start
art er batt
er batt er
ery bef
y bef or
ore st
e st ar
arting t
ting t he
he
jour
jour ney
ney
Yo u can receive a message on your smartphone
when the state of charge ofthe star ter battery is
lo w. You can then start theve hicle with the smart-
phone tocharge the batter y.The vehicle is auto-
matically switched o. aTer ten minutes. Driving and parking
161
161

Combo 2
vehicle soc ket #
Press the centre rear section of soc ket 0ap
1 and swing the soc ket 0ap forw ards and
open.
The % indicator lamp 2and status dis-
play 3light up white. %
When theve hicle is switched on (the õ
displ ayis lit in the Instrument Display), soc ket
0ap 1cannot be opened. #
Press cat ch7 tothe leT and fold open
soc ket co ver5.
% Vehicles with a vehicle soc ket combo requ ire
only connection 8forth ech arging cable
connector. Open only the upper part of soc ket
co ver5. #
Tocharge at a mains soc ket, insert the mains
plug into the mains soc ket of theex tern al
po we r source tothe stop and set the maxi-
mum charging cur rent if requ ired
(/ page 193). #
Insert thech arging cable connector into vehi-
cle soc ket connection 8tothe stop. If the
wa llbox/charging station is not equipped with
a ch arging cable, inse rtthe plug of theve hi-
cle's charging cable into thewa llbox/charging
station soc ketto the stop.
Make sure that thech arging cable is not taut
when inser ted. The
# indicator lamp 4and status dis-
play 30ash orange and, as soon as the high-
vo ltage battery is charge d, green.
When thech arging cable is connected totheve hi-
cle, theve hicle cann otbe star ted or mo ved.
At the start of thech arging process, thech arge
le ve l display is shown in the Instrument Display
with a charging prediction. The charging predic-
tion either refers to the predicted charge leve l at
th e set departure time, or the time at which the
high- voltage battery will be fully charge d.
% Depending on thete mp erature, thefa n and
bat tery cooling system may audibly switch on
during thech arging process.
% Ifth eve hicle is idle for lengt hyperiods and
connected tothe mains suppl y,the high-volt-
age battery will be rech arge d automatically as
needed or when electrical consumers are
activated (e.g. the pre-entry climate control). Driving and parking
199 199

%
Depending on thete mp erature, thefa n and
bat tery cooling system may audibly switch on
during thech arging process.
% Ifth eve hicle is idle for lengt hyperiods and
connected tothe mains suppl y,the high-volt-
age battery will be rech arge d automatically as
needed or when electrical consumers are
activated (e.g. the pre-entry climate control). Ending t Ending t
he dir
he direct curr
ect curr ent c
ent c har
harging pr
ging pr ocess (mode
ocess (mode
4)
4) R
R
eq
eq uir
uir ements:
ements:
R The distance between theke y and theve hicle
does not exceed 1 m. Combo 1 v
Combo 1 v
ehicle socket
ehicle soc ket #
Press charging inter ruption button 3.
The charging process is ended. The %indi-
cator lamp 1lights up white. The vehicle
soc ket is unloc ked. #
Press and hold button 2onthech arging
cable connector and remo vethech arging
cable connector from theve hicle soc ket. %
Ifyo u cannot remo vethech arging cable con-
nector, unlock theve hicle and repeat the pro-
cedure. If thech arging cable connector is still
loc ked, contact a quali/ed specialist work-
shop. #
Close the soc ket co ver and the soc ket 0ap.
Combo 2 v
Combo 2 v ehicle socket
ehicle soc ket 204
204
Driving and parking

Information on coolant is
available at thefo l-
lowing locations:
R Inthe Mercedes-Benz Speci/cation for
Operating Fluids 320.1
- Athttps://be vo.mercedes-benz.com
- Inthe Mercedes-Benz BeVo App
R Ataqu ali/ed specialist workshop *
N NOOTE TE Overheating at high outside temp er-
atures If an inappropriate coolant is used,
the engine
cooling system is not su1ciently pr otected
against overheating and cor rosion at high out-
side temp eratures. #
Only use coolant appr ovedby Mercedes-
Benz. #
Obser vethe inst ructions in the
Mercedes-Benz Speci/cations for Oper-
ating Fluids 320.1. Ha
ve the coolant regula rly re placed at a quali/ed
specialist workshop. Proportion of antif
reeze concentrate in the engine
cooling system:
R A minimum of 50% (antifreeze pr otection down
to about -37°C)
R A maximum of 55% (antif reeze pr otection
down to-45°C) N
No ot
tes on windscr
es on windscr een w
een washer
asher 0uid
0uid Obser
vethe no tes on operating 0uids
(/ page 385). &
W
WARNING
ARNING ‑ Risk of /re and injury due to
windscreen washer concent rate
Wi ndsc reen washer concent rate is highly 0am-
mable. It could ignite if it comes into contact
with hot engine component parts or the
ex haust system. #
Make sure that no windscreen washer
concent rate spills out next tothe /ller
opening. *
N NOOTE
TE Damage totheex terior lighting due
to unsuitable windscreen washer 0uid Unsuitable windscreen
washer 0uids may
damage the plastic sur face of theex terior
lighting. #
Only use windscreen washer 0uids which
are also suitable for use on plastic sur fa-
ces, e.g. MB SummerFit or MB WinterFit. *
N
NOOTE
TE Bloc ked spr aynozzles caused by
mixing windscreen washer 0uids #
Do not mix MB SummerFit and MB Win-
te rFit with other windscreen washer 0u-
ids. Do not use distilled or de-ionised
water. Other-
wise, the /ll le vel sensor may be triggered er rone-
ous ly.
Re commended windscreen washer 0uid:
R abo vefreezing point: e.g. MB SummerFit
R below freezing point: e.g. MB WinterFit 394
394
Te
ch nical data