warning MERCEDES-BENZ C-CLASS COUPE 2021 Owners Manual

*
NO
TEDama gefrom auto matic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer‐
ta in situations:
R Active Brake Assi st
R Active Dis tance Assi stDISTRONIC
R HOLD function
R Active Parking Assist
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
during towing #
in a car wash *
NO
TEDama gedue tounsuitable car
wa sh #
Before driving into a car wash make
sure that the car wash is suitable for
th eve hicle dimensions. #
Ensure there is suf ficient ground clear‐
ance between the underbody and the
guide rails of the car wash. #
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is suf ficient. To
avo id damage to yourvehicle when using a
car wash, ensure thefo llowing beforehand:
R Active Dis tance Assi stDISTRONIC is deacti‐
va ted.
R the HOLD function is switched off.
R the 360° Camera or there ve rsing camera is
switched off.
R the side windo wsand sliding sun roof are
comple tely closed.
R the blo werfo rth eve ntilation/heating is
switched off.
R the windscreen wiper switch is in position
g.
R theke y is at a minimum dis tance of 3 m
aw ay from theve hicle. Otherwise the boot lid
could open unintentionally. R
for car washes with a con veyo r sy stem:
- neutral iis engaged.
- Ifyo uwo uld like tolea vetheve hicle while
it is being washed, make sure theke y is
located in theve hicle. The park position
j isotherwise automatically engaged.
% If, af terth e car wash, youre mo vethewax
from the windscreen and wiper rubbers, this
will pr event smearing and reduce wiper
noise. Information on using a high-p
ressure cleaner &
WARNING Risk of an accident when
using high-pressure cleane rswith round-
spray nozzles
The wate r jet can cause extern ally invisible
damage.
Components damaged in this wa y may unex‐
pec tedly fail. #
Do not use a high-pressure cleaner with
round-spr aynozzles. 37 0
Maintenance and care

Note
s on care of car parts &
WARNING Risk of entrapment if the
windscreen wipers are swit ched on while
th e windscreen is being cleaned
If th e windscreen wipers are set in motion
while you are cleaning the windscreen or
wiper blades, you can be trapped bythe
wiper arm. #
Alw ays switch off the windscreen wip‐
ers and the ignition before cleaning the
windscreen or wiper blades. &
WARNING Risk of bu rns from theta il‐
pipe and tailpipe trims
The exhaust tailpipe and tailpipe trims can
become very hot. If you come into contact
with these parts of theve hicle, you could
burn yourself. #
Alw ays be particular lycareful around
th eta ilpipe and theta ilpipe trims and
supervise children especially closely in
th is area. #
Allow vehicle parts tocool down before
to uching them. To
avo id damage totheve hicle, obser vethe
no tes on cleaning and care of thefo llowing vehi‐
cle parts:
Wheels and rims
R Use wate r and acid-free alloy wheel cleaners.
R Do not use acidic alloy wheel cleaners to
re mo vebrake dust. This could damage wheel
bolts and brake components.
R Toavo id cor rosion of the brake disks and
brakepads, drive theve hicle for a few
minutes af ter cleaning before parking it. The
brake disks and brakepads warm up and dry
out.
Wi ndo ws
R Clean the windo wsinside and outside with a
damp clo thand with a cleaning agent recom‐
mended for Mercedes-Benz.
R Do not use dry clo ths or abrasive or sol vent-
based cleaning agents toclean the inside of
windo ws. %
Remo veextern al fogging or dirt on the wind‐
screen in front of the multifunction camera.
Otherwise, driving sy stems and driving
saf ety sy stems may be impaired or not avail‐
able (/ page175).
Wi per blades
R Movethe wiper arms into there placement
position (/ page130).
R With th e wiper arms folded out, clean the
wiper blades with a damp clo th.
R Do not clean the wiper blades too of ten.
Ex terior lighting
R Clean the lenses with a wet sponge and mild
cleaning agent, e.g. car sha mpoo.
R Only use cleaning agents or cleaning clo ths
th at are suitable for plast ic lenses.
Sensors R Clean the sensors in the front and rear
bumpers with a soft clo thand car shampoo
(/ page 175).
R When using a high -pressure cleaner,maintain
a minimum dis tance of 30 cm. Maintenance and care
373

Re
versing camera and 360° Camera
R Open the camera co ver with the multimedia
sy stem (/ page216).
R Use clean water and a soft clo thtoclean the
came ralens.
R Do not use a high-pressure cleaner.
Ta ilpipes
R Clean with a cleaning agent recommended
fo r Mercedes-Benz, especially in the winter
and af terwa shing theve hicle.
R Do not use acidic cleaning agents.
Tr ailer hitch
R Obse rveth e no tes on care in the trailer hitch
manufacturer's operating instructions.
R Do not clean the ball neck with a high-pres‐
sure cleaner or solvent.
R Remo vetraces of rust on the ball, forex am‐
ple, with a wire brush.
R Remo vedirt with a lint-free clo th.
R After cleaning, lightly oil or grease the ball
head. %
Before using trailers with anti- torsional cou‐
pling, obser vethe manufacturer's operating
instructions. Note
s on care of the interior &
WARNING Risk of inju ryfrom pla stic
parts breaking off af terth e use of sol‐
ve nt-based care products
Ca reand cleaning products con taining sol‐
ve nts can cause su rfaces in the cockpit to
become porous. When the airbags are
deplo yed, plastic parts may break away. #
Do not use any care or cleaning prod‐
ucts containing sol vents toclean the
cockpit. &
WARNING Risk of inju ryor death from
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to
te ar or fail in an accident. #
Never blea chor dye seat belts. To
avo id damage totheve hicle, obser vethefo l‐
lowing no tes on cleaning and care:
Seat belts R Clean with luk ewarmand soapy water.
R Do not use chemical cleaning agents.
R Do not dry byheating them toove r 80°C or
ex posing them todirect sunlight.
Display
R Switch off the display and let it cool down.
R Clean the sur face carefully wi tha mic rofibre
clo thand a suitable display care product
(TF T-LC D).
R Do not use any other agents.
Plastic trim R Clean with a damp microfibre clo th.
R For heavy soiling: use a cleaner recommen‐
ded for Mercedes-Benz.
R Do not attach sticke rs,fi lms or similar mate‐
ri als. 374
Maintenance and care

Emer
gency Re
moving the saf etyve st The saf
etyve sts are located in thestow age com‐
partments in the driver and front passenger
door. #
Toremo ve:pull out sa fety vest bag byloop. #
Open the saf etyve st bag and pull out the
saf etyve st. 1
Maximum number of washes
2 Maximum wash temp erature
3 Do not bleach
4 Do not iron 5
Do not tumble dry
6 Do not dry clean
7 Class 2 saf etyve st
The requ irements defined bythe legal standard
are on ly fulfilled if the saf etyve st isthe cor rect
size and is fully closed.
The saf etyve st must be replaced in thefo llowing
situations:
R there flective strips are damaged or dirty
R the maximum permissible number of washes
is exc eeded
R thefluorescence has faded Wa
rning triangle Re
moving the warning triangle #
Push bo thsides of warning triangle holder
1 inthe direction of the ar row and open it. #
Remo ve wa rning triangle 2. 376
Breakdown assis tance

Setting up
thewa rning triangle #
Fold side reflectors 1upwards toform a tri‐
angle and attach at theto p using upper
press-stud 2. #
Fold legs 3down and out tothe side. Fi
rs t-aid kit (soft-sided) overview Fir
st-aid kit (so ftsided) 1is in the boot in the
left-hand or right-hand stowage net, depending
on the model. Re
moving the fire extinguisher &
WARNING Risk of accident due toan
incor rectly secu redfire extinguisher in
th e driver's foot we ll
A fire extinguisher may impede pedal tr avel
or block a depressed pedal.
This jeopardises the operating and road
saf ety of theve hicle.
The fire extinguisher can be flung around and
injure the driver or other vehicle occupants. #
Alw aysst ore and secure thefire extin‐
guisher in the brac ket. #
Do not remo vethefire extinguisher
while driving. Breakdown assi
stance 377

#
Left-hand drive vehicle: pulltab1
upwards. #
Right-hand drive vehicle: pulltab1 down‐
wa rds. #
Remo vefire extinguisher 2. Flat tyre
Note
s onflat tyres &
WARNING Risk of accident due toaflat
tyre
A flat tyre se verely affects the driving charac‐
te rist ics as well as thesteering and braking
of theve hicle.
Ty res without run-flat characteristics: #
Do not drive with a flat tyre. #
Chan getheflat tyre immediately with
an emer gency spa rewheel or spare
wheel. Alternativel y,consult a qualified
specialist workshop.
Ty res with run-flat characteristics: #
Obse rveth e information and warning
no tes on MOExtended tyres (run-flat
tyres). In
theeve nt of a flat tyre, thefo llowing options
are available depending on your vehicle's equip‐
ment:
R Vehicles with MOExtended tyres: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you obse rvethe
no tes on MOExtended tyres (run-flat tyres)
(/ page 379).
R Vehicles with a TIREFIT kit: you can repair
th e tyre so that it is possible tocontinue the
jou rney for a short period of time. Todo this,
use the TIREFIT kit (/ page 380).
R Vehicles with Mercedes me connect: you
can make a call for breakdown assi stance via
th eove rhead control panel in the case of a
breakdown (/ page 320).
R Allvehicles: change the wheel
(/ page 409). 378
Breakdown assis tance

Note
s on MOExtended tyres (run-flat tyres) &
WARNING Risk of accident when driving
in li mp-home mode
Driving in emergency mode impairs the han‐
dling characteristics of theve hicle. #
Do not exceed the permissible maxi‐
mum speed of the MOEx tended tyres. #
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obs tacles (kerbs, pot holes, off-road).
This applies, in pa rticular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vibration
R smoke which smells like rubber
R continuous ESP ®
inter vention
R crac ksinthe tyre side walls #
After driving in emergency mode, ha ve
th erims checkedby aqu alified special‐ ist
workshop with rega rd totheir fur ther
use. #
The defective tyre must be replaced in
eve rycase. Wi
th MOExtended tyres (run-flat tyres), you can
continue todrive your vehicle even if there is a
tot al loss of pressure in one or more tyres. How‐
eve r,th e tyre af fected must not show any clearly
visible damage.
Yo u can recognise MOExtended tyres bythe
MOExtended marking which appears on the side
wa ll of the tyre.
Ve hicles with tyre pressure loss warning sys‐
te m: MOExtended tyres may only be used in
conjunction wi than activated tyre pressure loss
wa rning sy stem.
Ve hicles with tyre pressure monitoring sys‐
te m: MOExtended tyres may only be used in
conjunction wi than activated tyre pressure mon‐
itoring sy stem. If a pressure loss
warning message appears in
th e multifunction displa y,proceed as follo ws:
R Check the tyre for dama ge.
R If driving on, obser vethefo llowing no tes.
Driving distance possible in emer gency
mode af ter the pressure loss warning: Load condition Driving distance pos‐
sible in emergency
mode
Pa rtially laden 80 km
Fu lly laden 30 km The driving dis
tance possible in emergency
mode may vary depending on the driving style.
Obser vethe maximum permissible speed of
80 km/h.
If a tyre has gone flat and cannot be replaced
with an MOEx tended tyre, you can use a stand‐
ard tyre as a temp orary measure. Breakdown assis
tance 37 9

TIREFIT kit
storage location The TIREFIT kit is located under
the boot floor. 1
Tyre inflation compressor
2 Tyre sealant bottle 1
Bag
Depending on the model, the TIREFIT kit may
also be located in other places under the load
compartment floor or in bag 1inthe boot.
% Depending on the po wer category (LK), the
tyre inflation compressor weighs as follo ws:
R LK1 – 12V/10 A,120W, 0.8 kg
R LK2 – 12V/15 A,180W, 0.9 kg
Yo u can find information on the po wer cate‐
gory (LK) and/or electrical data on the back
of the tyre inflation compressor. The tyre inflation compressor is mainte‐
nance-free. If
there is a malfunction, please
conta ct aqualified specialist workshop. Using
the TIREFIT kit Re
quirements:
R Tyre sealant bottle
R TIREFIT sticker
R Tyre inflation compressor
R Gloves (depending on theve hicle equipment)
TIREFIT kit storage location: (/ page 380)
Yo u can use TIREFIT tyre sealant toseal per fora‐
tion dama geof up to4 mm, particular lythose in
th e tyre conta ct surface. You can use TIREFIT in
outside temp eratures down to-20 °C. &
WARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable toseal the
tyre properly, especially in thefo llowing
cases: 380
Breakdown assis tance

R
there are cuts or punctures in the tyre
lar gerth an damage pr eviously men‐
tioned.
R the wheel rim is dama ged.
R you ha vedriven at very low tyre pres‐
sures or on a flat tyre. #
Do not drive on. #
Consult a qualified specialist workshop. &
WARNING Risk of inju ryand poisoning
from tyre sealant
Ty re sealant is hazardous tohealth and cau‐
ses ir rita tion. Do not allow it tocome into
contact wi thyour skin, eyes or clo thing, and
do not swallow it. Do not inhale any vapours.
Ke ep the tyre sealant away from children.
Obser vethefo llowing if you come into con‐
ta ct wi th the tyre sealant: #
Rinse off the tyre sealant from your skin
using water immediatel y. #
If tyre sealant gets into your eyes, thor‐
oughly rinse them using clean water
immediatel y. #
If tyre sealant has been swallowe d,
th oroughly rinse out your mouth imme‐
diately and drink plenty of water.Do not
induce vomiting and seek medical
attention immediately. #
Change out of clo thing which has come
into con tact wi thtyre sealant immedi‐
ately. #
If an alle rgic reaction occurs, seek med‐
ical attention immediatel y. *
NO
TEOverheating due tothe tyre infla‐
tion compressor running too long #
Do not runth e tyre inflation compres‐
sor for longer than ten minu tes without
inter ruption. Comply with
the manufacturer's saf ety no tes on
th est icke r on the tyre inflation compressor. Ha
ve the tyre sealant bottle replaced in a quali‐
fi ed specialist workshop every five years. #
Do not remo veany fore ign objects which
ha ve entered the tyre. #
Affix pa rt1 ofthe TIREFIT sticke rto the
instrument clus ter within the driver's field of
vision. #
Affix pa rt2 ofthe TIREFIT sticke r near the
va lve on the wheel with the defective tyre. Breakdown assis
tance 381

#
Very slowly drive forw ards or reve rse appr ox‐
imately 10m. #
Pump up the tyre again.
Af ter a maximum of ten minu testh e tyre
pressure must be at least 200 kPa (2.0 bar/
29 psi). &
WARNING Risk of accident due tothe
specified tyre pressure not being
attained
If th e minimum tyre pressure is not reached
af te rth e specified time, the tyre is too badly
damaged. The tyre sealant cannot repair the
tyre in this ins tance.
The braking and driving characteristics may
be great lyimpaired. #
Do not continue driving. #
Consult a qualified specialist workshop. If, af
terte n minutes, a tyre pressure of
200 kPa (2.0 bar/29 psi) has been attained: &
WARNING Risk of accident from driving
wi th sealed tyres
A tyre temp orarily sealed with tyre sealant
impairs the handling characteristics and is
not suitable for higher speeds. #
Adapt your driving style according lyand
drive carefull y. #
Do not exceed the maximum speed
limit with a tyre that has been repaired
using tyre sealant. #
Obser vethe maximum permissible speed for
a tyre sealed with tyre sealant 80 km/h. #
Affix th e upper section of the TIREFIT sticker
to the instrument clus ter in a location where
it will be easi lyseen bythe driver.
* NO
TEStaining from leaking tyre sealant Af
ter use, excess tyre sealant may leak out
from thefilling hose. #
Therefore, place thefilling hose in the
plastic bag that con tained the TIREFIT
kit. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal Ty
re sealant contains polluta nts. #
Have the tyre sealant bottle disposed of
professionall y,e.g. at a Mercedes-Benz
Service Centre. #
Switch off the tyre inflation compressor. #
Unscr ew thefilling hose from theva lve of the
defective tyre. #
Stow th e tyre sealant bottle and the tyre
inflation compressor. #
Pull away immediatel y. #
Stop driving af ter appro ximately ten minu tes
and check the tyre pressure using the tyre
inflation compressor.
The tyre pressure must now be at least
13 0 kPa (1.3 bar/19 psi). Breakd
own assi stance 383