cooling MERCEDES-BENZ C-CLASS COUPE 2021 Owners Manual

#
Toswitch off: setthe air flow toleve l 0 using
th eH button.
If climate control is switched off, the windo ws
may mist up more quickl y.Switch climate con‐
trol off only brie fly. Switching
the A/C function on/off using the
air conditioning control panel The A/C function heats, cools and dehumidi
fies
th eve hicle's interior air. #
Press the¿ button.
Switch off the A/C function only brief ly;ot her‐
wise, the windo wsmay mist up more quickl y.
Condensation may drip from the underside of
th eve hicle when cooling mode is active. This is
not indicative of a fault. Setting climate cont
rolto automatic mode In auto
matic mode, the set temp erature is con‐
trolled and maintained at a const ant levelby the
air suppl y. #
Press the à button. #
Toswitch tomanual mode: pressthe H
or _ button. Ac
tivating/deactivating the climate control
syn chro nisation function via the air condi‐
tioning control panel Climate control can be set centrally using
the
synchronisation 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 con‐
trol zones are changed. Ac
tivating/deactivating the climate control
syn chro nisation function via the multimedia
sy stem Multimedia sy
stem:
4 Vehicle 5
b Climate control
5 SYNC
Climate control can be set cent rally using the
synchronisation function. The temp erature set‐
ting will automatically be adop tedfo r all clima te
zones. #
Activate Oor deacti vate ª the function. Demisting
the windo ws Wi
ndo wsmis ted up on the inside #
Press theà button. #
Ifth e windo wscontinue tomist up: press the
¬ button.
Wi ndo wsmis ted up on the outside #
Switch on the windscreen wipers. #
Press theà button. 13 6
Climate cont rol

St
arting theve hicle with theke y in the
ma rked space (emer gency operation mode)
If th eve hicle does not start and thePlace the
key in the marked space See Owner's Manual
message appears in the multifunction displa y,
yo u can start theve hicle in emer gency operation
mode. #
Makesure 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 af ter a short time.
If yo ure mo vetheke y1 from the mar ked
space 2,the engine continues running. For
fur ther engine starts ho wever,th eke y1
must be located in the mar ked space 2on
th e symbol 3during the entire journe y. #
Have theke y1 checked at a qualified spe‐
cialist workshop.
If th eve hicle does not star t: #
place theke y1 inthe mar ked space 2
and lea veitth ere. #
Depress the brake pedal and start theve hi‐
cle using thest art/ stop button.
% You can also swit chon the po wer supp lyor
th e ignition with thest art/ stop button.
Obser veany information rega rding display mes‐
sages that can be displa yed on the multifunction
displa y. St
arting theve hicle via Remo teOnline Serv‐
ices Cooling or heating
theve hicle interior before
st arting the jou rney
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 su fficiently full.
R thest ar ter battery is suf ficiently charge d.
Charging thest ar ter battery be fore starting
th e jou rney
If th eve hicle battery is dischar ged, you can
re cei vea message on your smartphone. You can
th en start theve hicle with the smartphone to
ch arge the batter y.The vehicle is automatically
switched off af terte n minu tes. 14 6
Driving and pa rking

Fi
t & Healthy ENE
RGIZING COMFORT Overview of
the ENERGIZING COMFORT pro‐
gr amme
Programme overview
R Refresh: Can make targeted changes tothe
interior climate torefresh vehicle occupants.
Cooling air flow and ionisation purify the air.
The vehicle interior is illuminated with cool
colours and the seat is ventilated.
R Warmth: Can inc rease the comfort le vel of
th eve hicle occupants. The vehicle's panel,
seat and steering wheel heating pr ovide cosy
wa rmth. The air is pu rified using ionisation
and a pleasant fragrance is released. The
ve hicle interior is illuminated with warm light‐
ing.
R Vitality: Can coun tera ct diminishing atten‐
tiveness in mono tonous driving situations.
Fa st-paced music and a vitalising massa ge
pr ov ide invigorating stimulation forth eve hi‐
cle occupants. The air is purified using ioni‐
sation and a pleasant fragrance is released. The
vehicle interior is illuminated with a stim‐
ulating hue and the seat is ventilated.
R Pleasure: Can promo tea positive mood in
th eve hicle occupants as well as men tal and
ph ysical rege neration. Moderately fast music
is pla yed and a massage programme is acti‐
va ted. The air is purified using ionisation and
a pleasant fragrance is released. The vehicle
interior is illuminated with amicable lighting.
R Well being: Can aidthe ph ysical and men tal
re laxation of vehicle occupants. A back mas‐
sage combined with local warmthprov ide
re laxation. The air is purified using ionisation
and a pleasant fragrance is released. The
audio pla yer pla ysselections of calming
music and theve hicle interior is illuminated
with pleasant lighting.
R Training: Can counteract the onset of mus‐
cle tension, limbs falling asleep or stre ss with
ta rgeted relaxation or stimulation exercises.
The exercises are demon stra ted in short vid‐
eos. The air is purified using ionisation and a
pleasant fragrance is released. The vehicle
interior is illuminated with lighting appropri‐
ate totheexe rcise. %
Please no tethat theav ailable prog rammes
and the associated functions depend on your
ve hicle equipment. Depending on your
equipment, fewe r functions may be availa‐
ble.
St arting the ENERGIZING Comfort pro‐
gr amme
Re quirements:
R The ignition is switched on.
% ENE RGIZING Comfort is available appr ox‐
imately five minutes af terst arting the multi‐
media sy stem.
Multimedia sy stem:
4 Vehicle 5
ENERGIZING Comfort
Selecting a seat #
Select Seat selection. #
Select the desired seat or All seatsO.
St arting a prog ramme #
Select Refresh, Warmth,Vitality, JoyorWell-
being . Multimedia sy
stem 275

&
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly replaced at a
qu alified specialist workshop.
Only use a brake fluid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
33 1.0. Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(/ page 420). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only use coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction. Information on coolant is
available at thefo l‐
lowing locations:
R inthe Mercedes-Benz Specification for
Operating Fluids 310.1
- at https://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo app
R at a qualified specialist workshop *
NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures. #
Alw ays use coolant appr ovedby
Mercedes-Benz. #
Obser vethe instructions in the
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1. Ha
ve the coolant regularly replaced at a qualified
specialist workshop. 428
Tech nical da ta

Proportion of antifreeze concentrate in
the
engine cooling sy stem:
R a minimum of 50% (antifreeze pr otection
down toappr oximately -37°C)
R a maximum of 55% (antifreeze pr otection
down to-45°C) Note
s on windscreen washer fluid Obser
vethe no tes on operating fluids
(/ page 420). &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. #
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. *
NO
TEDama getotheex terior lighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damage the plastic sur face of theex terior
lighting. #
Only use windscreen washer fluids
which are also suitable for use on plas‐
tic sur faces, e.g. MB SummerFit or MB
Wi nterFit. *
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids #
Do not mix MB SummerFit and MB Win‐
te rFit with other windscreen washer flu‐
ids. Do not use distilled or de-ionised
water.Other‐
wise, thefill le vel sensor may be triggered er ro‐
neously.
Re commended windscreen washer fluid:
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 antif reeze conta iner.
Mix washer fluid with windsc reen washer fluid all
ye ar round. Ve
hicle data Ve
hicle dimensions The heights speci
fied may vary as a result of the
fo llowing factors:
R tyres
R load
R condition of the suspension
R optional equipment Te
ch nical da ta429

Height when opened
Missing
values werenot available at the time of
going topress. Model
1
1Height
when
opened
All models Ve
hicle dimensions All models
Ve
hicle lengt h4 686 mm
Ve hicle width including out‐
side mir rors 20
16 mm
Ve hicle width excluding out‐
side mir rors 18
10 mm
Wheelbase 2840 mm Ve
hicle height Model
C 200 4MATIC
C 220 d 4MATIC
C 300 4MATIC
C 300 d 4MATIC
C 400 4MATIC
14
13 mm
All other models 1405 mm We
ights and loads Please obser
vethefo llowing no tesfo rth e speci‐
fi ed vehicle data:
R Items of optional equipment increase the
unladen weight and reduce the pa yload.
R Vehicle-specific weight information can be
fo und on theve hicle identification plate
(/ page 418). Model
Maximumroof load
All models 75kg Tr
ailer hitch Gene
ral no tes on the trailer hit ch Modifications
tothe engine cooling sy stem may
be necessar y,depending on theve hicle model.
The retrofitting of a trailer hitch is only pe rmissi‐
ble if a towing capacity is specified in your vehi‐
cle documents.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. 430
Tech nical da ta

Display messages
Possible causes/consequences and M
MSolutions
+ Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Add coolant (/ page 368). #
Have the engine cooling sy stem checked at a qualified specialist workshop.
ÿ
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. &
WARNING Risk of bu rns when opening the bonn et
If yo u open the bonn etwhen the engine has overheated or when there is a fire inthe engine compartment, the
fo llowing situations may occur:
R You could come into contact with hot gases.
R You could come into contact with other hot, escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the bonn etclosed and call thefire service. #
Wait until the engine has cooled down. 448
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away may be temp orarily impaired or not possible. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Lea vethe engine running. #
Wait until the display message disappears before pulling away.
Auxiliary battery malfunc-
tion (whitedisplay mes‐
sage) *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, alw ays select park position jmanually before you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake.
Auxiliary battery malfunc-
tion (red display message) *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, alw ays select park position jmanually before you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake. 452
Display messages and warning/indicator lamps

Ac
tivating/deactivating the synchro‐
nisation function (cont rol panel)............ 13 6
Ac tivating/deactivating the synchro‐
nisation function (multimedia sy stem)... 13 6
Air-reci rculation mode.......................... .137
Au tomatic control.................................. 13 6
Demi sting the windscreen..................... 13 5
Demi sting windo ws............................... 13 6
Fr ont air vents....................................... 14 2
Inserting/removing theflacon (fra‐
gr ance sy stem)...................................... 137
Ionisation............................................... 137
No te...................................................... 13 5
Re ar air vents....................................... .143
Re sidual heat......................................... 137
Setting the air distribution..................... 13 5
Setting the air flow ................................. 13 5
Setting the fragrance sy stem.................1 37
Setting theve hicle interior temp era‐
ture........................................................ 13 5
St ationary heater/ ventilation................ 13 8
Switching on/of f................................... 13 5
Switching there ar wind owheater
on/off...................................................1 35
THERMATIC control pane l...................... 13 5
THERMOTRONIC contro l panel..............135 Ve
ntilating theve hicle (con venience
opening).................................................. 86
Co ckpit
Overview................................................... 6
Co ffee cup symbol
see ATTENTION ASSIST
Collision de tection (pa rked vehicle)
Information............................................ 173
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices.................................. 268
Combination switch .................................. 12 3
Compass..................................................... 301
Compu ter
see On-board computer
Connection status
Displ aying.............................................. 332
Overview............................................... 332
Contacts Calling up.............................................. .311
Del eting................................................ .312
Downloading (from mobile phone )......... 310 Importing...............................................
311
Importing (o verview)............................. .311
Information............................................ 310
Making a call......................................... 312
Na me form at......................................... .311
Options.................................................. 312
St oring................................................... 312
Controller Operating.............................................. 256
Con venience closing ................................... 86
Con venience opening ..................................86
Coolant (engine) Check le vel............................................ 368
No tes....................................................4 28
Cooling see Clima tecontrol
Co pyright..................................................... 36
Cornering light ...........................................1 24
Cross Traf fic Alert..................................... 225
Crosswind Assist Function/no tes...................................... 178 Index
509

Au
xilia rybattery malfunction (white
display message) ...................................4 52
Beginning emer gency stop.....................4 61
Blind Spot Assi stcur rently una vaila‐
ble See Owner's Manual ........................ 463
Blind Spot Assist inope rative ................. 463
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual .....4 63
Cannot start engine See Owner's
Manual................................................. .477
Check tyre pressures then restart
Ru n Flat Indicator................................. .481
Cruise cont rol and Limiter inope rative.. 458
Cruise control inope rative..................... 458
Cruise control off.................................. 459
Fr ont-passenger airbag disabled See
Owner's Manual....................................4 35
Fr ont-passenger airbag enabled See
Owner's Manual....................................4 35
Hazard warning lamps malfunctioning.. .442 Limi
ter inoperative................................ 459
Limiter passive...................................... 459
Mercedes me connect Services limi‐
te d See Owner's Manual........................4 74
Mo tor can be star ted again...................4 77
N permanently active Risk of vehicle
ro lling .................................................... 451
Only select Park (P) when vehicle is
st ationary.............................................. 450
Pa rking Assist and PARKTRONIC
inoperative See Owner's Manual ...........468
Pa rking Assist Manoeuvring assis‐
ta nce limited See Owner's Manual........ 468
Place theke y in the mar ked space
See Owner's Manual............................. 438
PRE-SAFE inoperative See Owner's
Manual..................................................4 36
Ra dar sensors dirty See Owner's
Manual..................................................4 73
Re duce speed ........................................ 480 Re
versing not poss. Consult workshop.. 451
Risk of vehicle rolling Driver door
open and transmission not in P............. 451
Ru n Flat Indicator inope rative............... .481
Speed limit (winter tyres) XXX km/h..... 461
St op vehicle Lea veengine running
Wa itTransmission cooling .....................452
To shift out of P or N,depress brake
and start engine.................................... 450
To switch off the engine, press
St art/ Stop button for at least 3 sec‐
onds or 3 times. ................................... .447
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual............. 462
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ........................ 462
Tr af fic Sign Assi stinope rative ............... 462
Tr ansmission Malfunction Stop.............. 451
Ty re press. monitor cur rently una vail‐
able ...................................................... .477 514
Index