cooling MERCEDES-BENZ E-CLASS ESTATE 2021 Owners Manual

Plug-in
hybrid: & activates/deactivates
"Immediate pre-ent ryclimate cont rol"
(/ page 167)
9 g Switches air-recirculation mode on/o.
(/ page 163)
A Vehicles with THERM ATIC air conditioning
cont rol panel: ¿switches the A/C func-
tion on/o. (/ page 161)
Ve hicles with THERM OTRO NIC air condition-
ing control panel: _adjusts the air distri-
bution, right
B w Setsthete mp erature, right R
R
ear oper
ear oper ating unit in v
ating unit in v ehicles with
ehicles with
THERMO
THERMO TR
TRONIC air conditioning contr
ONIC air conditioning control panel ol panel 1
Sets thete mp erature
2 Display
3 Sets the air0ow 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¿ 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. Climate control
161
161

Dispose of
thege nuine Mercedes-Benz interior
perfume 0acon when it is em pty and do not re/ll
it.
R R e/llable
e/llable 0acon
0acon #
Unscr ewthe cap of the em pty 0acon. #
Fillth e 0acon with a maximum of 15 ml. #
Screw the cap back on tothe 0acon.
Alw aysre /ll the em ptyre /llabl e0acon with the
same perfume. Obser vethe separate information
sheet with the 0acon. Inf
Inf
or
ormation on t
mation on t he windscr
he windscreen heat
een heat er
er The windscreen heater is switched on automati-
cally if
the ¬ button is activated.
ATer theve hicle is star ted, the windscreen heater
will be switched on automatically as requ ired. 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 Panel heating
R Mirror heater
R Rear wind owheater
R Frag rancing R
Ionisation
Se Se tting pr
tting pr e-entr
e-entry climat
y climat e contr
e control viakey
ol via key #
Call up the air conditioning menu. #
Select Pre-entry climate ctrl.
T
T ur
ur ning
ning on/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
To 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. Climate control
165
165

Pre-entry clima
tecont rol via theke y cann otbe
activated more than twice when theve hicle is
switched o.. #
T
To switc
o switc h
ho.:
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
R Panel heating
R Frag rancing
R Ionisation 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
WARNI NG
ARNI NGDanger tolife due toexposure
to extreme heat or cold in theve hicle
If people, particular lych ildren, are exposed to
ex treme temp eratures over an extended period of time,
there is a risk of serious injury
or danger tolife. #
Never lea vepersons, children in particu-
lar, 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 Panel heating
R Mirror heater
R Rear wind owheater
R Frag rancing
R Ionisation
Se
Se tting pr
tting pr e-entr
e-entry climat
y climat e contr
e control f
ol for depar
or depar ture
ture
time
time #
Call up the air conditioning menu. #
Select 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. 166
166
Climate control

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 thew
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/v entilation
entilation S
S
t
tationar
ationar y heat
y heater/st
er/st ationar
ationar y v
y ventilation function
entilation function
The following functions are per form ed:
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 at theright-hand front wheel. Switc
Switc
hing t
hing t he st
he stationar
ationar y heat
y heater/v
er/ventilation
entilation on/o.
on/o.
via t
via t he oper
he oper ating unit
ating unit &
D
DAN
AN GER
GER Risk of fatal injury due topoison-
ous exhaust gases
If th eta ilpipe is bloc ked or su1cient ventila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi-
cle. This is the case in enclosed spaces or if
th eve hicle gets stuck in sno w,forex ample. #
Always switch the stationary heater o. in
enclosed spaces without an air extrac-
tion system, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
ve hicle or the auxiliary heating is run-
ning. #
Open a door or a roof hatch on the wind-
wa rdside of theve hicle toensure an
adequate supply of fresh air. 168
168
Climate control

#
Make sure that the mar ked space 2is
em pty. #
Remo vetheke y1 from theke yring. #
Place theke y1 inthe mar ked space 2.
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 2during 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. #
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 on the inst rument
displa y. S
S
t
tar
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
arter batt
er batt er
ery bef
y bef or
ore st
e st ar
ar ting 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.
Ensure thefo 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.
St
St ar
arting t
ting t he v
he vehicle (R
ehicle (R emot
emote Online)
e Online) &
W WARNING ARNING Risk of crushing or ent rapment
due tounintentional starting of the engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during service
or maintenance work. Driving and parking
179
179

ch
arging cable connector into vehicle soc ket
2 tothe stop. #
Insert thech arging cable connector into the
soc ket of thewa llbox tothe stop.
Make sure that thech arging cable is not taut
when inser ted.
The # indicator lamp 50ashes orange
and, as soon as the high-voltage battery is
ch arge 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 arging
side is shown in the Instrument Display with a
ch arging prediction. The charging prediction
either refers to the predicted charge leve l at the
set departure time, or the time at which the high-
vo ltage 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. Ending t Ending t
he c
he char
harging pr
ging pr ocess
ocess T
T
ype 1 v
ype 1 v ehicle soc ket
ehicle soc ket #
Press and hold button 1onthech arging
cable connector and remo vethech arging
cable connector from theve hicle soc ket.
% Ifth ech arging cable connector is bloc ked,
contact a quali/ed specialist workshop. #
Char
Char ging at a mains soc ke
ging at a mains soc ket (mode 2):
t (mode 2): discon-
nect the mains plug from the mains soc ket
and st owthech arging cable safely in theve hi-
cle (/ page 210). #
Close the soc ket co ver and the soc ket 0ap. 220
220
Driving and parking

The speci/ed /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 Obser
vethe no tes on operating 0uids
(/ page 433). &
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. Coolant Coolant
N
No
ot
tes on coolant
es on coolant
Obser vethe no tes on operating 0uids
(/ page 433). &
W
WARNING
ARNING Risk of /re‑ and injury from
antif reeze
If antifreeze comes into contact with hot com-
ponent parts in the engine compartment, it
may ignite. #
Allow the engine tocool down before
yo uto p up the antifreeze. #
Make sure that no antif reeze spills out
next tothe /ller opening. #
Thoroughly clean the antifreeze from
component parts before starting the
ve hicle. *
N
NOOTE
TE Damage caused byincor rect cool-
ant #
Only use coolant that has been premixed
with there qu ired antifreeze pr otection. 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
NO OTE 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. Te
ch nical data
441
441

Propo
rtion of antifreeze 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 w asher
asher 0uid
0uid Obser
vethe no tes on operating 0uids
(/ page 433). &
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 Fo
rth e cor rect mixing ratio, referto the informa-
tion on the antifreeze container.
Mix washer 0uid with windscreen washer 0uid all
ye ar round. V
V
ehicle data
ehicle data Inf
Inf
or
ormation r
mation r eg
egar
arding t
ding t he v
he vehicle data
ehicle data The
vehicle data speci/ed may vary as a result of
th efo llowing factors:
Fa ctors:
R tyres
R load
R condition of the suspension
R optional equipment
In addition, thefo llowing applies tothe speci/ed
ve hicle data:
R Items of optional equipment increase the unla-
den weight and reduce the pa yload.
R Vehicle-speci/c weight information can be
fo und on theve hicle identi/cation plate
(/ page 431). 442
442
Te
ch nical data

perature and
thech arging capacity of the batter y.
The charging capacit y,in turn, depends on the
supply voltage, the cur rent intensity and the type
of po wer suppl y.
The nominal voltage range foryo ur vehicle can be
fo und on the information label in the soc ket co ver
( / page 210). T
T
r
railer hitch
ailer hitch Gener
Gener
al not
al not es on t
es on t he tr
he trailer hitch
ailer hitch Modi/cations
tothe engine cooling system may
be necessar y,depending on theve hicle model.
The retro/tting of a trailer hitch is on lypermissi-
ble if a towing capacity is speci/ed in your vehicle
documents.
Fu rther information can be obtained at a quali/ed
specialist workshop.
Also obser vethe no tes on towing a trailer
(/ page 287). Mounting dimensions of t Mounting dimensions of t
he tr he trailer hitch
ailer hitch 1
Fastening points
2 Overhang dimension
3 Rear axle cent reline The
overhang dimension and fastening points are
va lid for a trailer hitch installed at thefa ctor y.
N N o ot
tes on t
es on t he maximum t
he maximum t ongue w
ongue w eight and load
eight and load
capacity
capacity
* NO
NOTE
TEDamage caused bythe trailer com-
ing loose If
th eto ngue weight used is too lo w,the trailer
may come loose. #
The tongue weight must not be below
50 kg. #
Use a tongue weight that is as close as
possible tothe maximum permissible
to ngue weight. *
N
NOOTE
TE Damage caused bythe bicycle rack
coming loose When using a bicycle
rack , bo th th e maximal
to ngue weight and the maximal load capacity
should be obser ved. #
Do not exceed the permissible load
capacity. 446
446
Te
ch nical data

Engine
Engine
Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
To switch off the engine,
press the Start/Stop but-
ton for at least 3 seconds
or 3 times. *Y
ou ha vepressed the start/s top button while theve hicle is in motion. #
Information about switching o. theve hicle while driving (/ page 178).
Cannot start engine See
Owner's Manual *T
hevehicle cann otbe star ted. #
Switch theve hicle o. and switch it back on #
Ifth e display message still appears, consult a quali/ed specialist workshop.
+
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* N NO
OTE
TE Engine damage due toinsu1cient coolant #
Avoid long journe yswith insu1cient coolant. #
Add coolant (/ page 380). #
Have the engine cooling system checked at a quali/ed specialist workshop. 474
474
Displ
aymessages and warning/indicator lamps