2021 MERCEDES-BENZ C-CLASS COUPE change wheel

Switching navigation announcements on/off
Re quirements:
R route guidance is active. #
Toswitch off: pressthevo lume control on
th e multifunction steering wheel during a
navigation announcement (/ page 260).
or #
Press thevo lume control on the cent recon‐
sole du ring a navigation announcement
(/ page 260).
The Spoken driving recommendations have
been deactivated. messageappears.
or #
Show the navigation menu (/ page276). #
Select !Driving recommendation .
The symbol changes to# . #
Toactivate: select#Driving recommen-
dation .
The cur rent navigation announcement is
pl ay ed. %
Inthefo llowing situations, navigation
announcements are switched on automati‐
cally:
R A new route guidance is star ted.
R The route is recalculated.
% You can add and call up this function as a
fa vo urite under Spoken driving recommenda-
tions on/off.
Swit ching navigation announcements on/off
during a phone call #
Select System. #
Select õAudio. #
Select Navigation and traffic announce-
ments. #
Swit chDriving recommendations during
phone call onO or off ª.
Ad justing the volume of navigation
announcements
Re quirements:
R Route guidance is active. #
On the multifunction steering wheel or
on the multimedia sy stem: turn thevo lume
control on the multifunction steering wheel
during a navigation announcement.
or #
Turn thevo lume control on the cent recon‐
sole du ring a navigation announcement
(/ page 261).
% Inthefo llowing situations, thevo lume is
ra ised tothe maximum volume or lo weredto
th e minimum volume:
R A new route guidance is star ted.
R The route is recalculated.
% The minimum volume can be individually set
at a Mercedes-Benz Service Cent re. #
Via sy stem settings: selectSystem. #
Select õAudio. #
Select Navigation and traffic announce-
ments. #
Select Driving recommendation volume. #
Set thevo lume. 290
Multimedia sy stem

#
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

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

#
Neverfit snow chains on the front
wheels. #
Only fit snow chains on there ar wheels
in pairs. *
NO
TEDama getocomponents of the
ve hicle body or chassis due tofitted
snow chains If
yo ufit snow chains tothe front wheels of
4MATIC vehicles, you may damage co mpo‐
nents of theve hicle body or chassis. #
Onlyfit snow chains tothere ar wheels
of 4MATIC vehicles. Obser
vethefo llowing no tes when using snow
ch ains:
R Snow ch ains are on ly permissible for cer tain
wheel/tyre combinations. You can obtain
information about this from a Mercedes-Benz
Service Cent re.
R For saf etyre asons, on lyuse sn ow chainsthat
ha ve been specifically appr ovedfo ryo ur ve
hicle byMercedes-Benz, or snow chains
with the same quality standard.
R If sn ow ch ains are fitted, the maximum per‐
missible speed is 50 km/h.
R Vehicles with Active Park ing Assis t:do
not use Active Parking Assist when snow
ch ains are fitted.
R Vehicles with le vel control: if snowchains
are fitted, only drive at raised vehicle le vel
( / page 209).
% You can permanently limit the maximum
ve hicle speed for driving with winter tyres
(/ page 186).
% You can deactivate ESP ®
to pull away
( / page 179). This allo wsthe wheels to
spin, achieving an increased driving forc e. Ty
re pressure Note
s on tyre pressure &
WARNING Risk of accident due toinsuf‐
fi cient or excessive tyre pressure
Ty res with either too low or too high a pres‐
sure present thefo llowing hazards:
R the tyres could bur st
R the tyres could wearexcessively and/or
une venly
R the driving characteristics as well as
st eering and braking characteristics may
be se verely impaired #
Obse rveth ere commended tyre pres‐
su res and check the tyre pressures of
all tyres including the spare wheel:
R monthly
R if altering the load on theve hicle
R prior tolong journe ys
R ifth e operating conditions change, for
ex ample when driving off- road 400
Wheels and tyres

If
th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures. Fuel
consum ption may then increase slightl y.
The load conditions "partially laden" and "fully
laden" are defined in theta ble for dif fere nt num‐
be rs of passengers and amounts of luggage. The
actual number of seats may dif fer from this. Ty
re pressure moni toring sy stem Fu
nction of the ty repressure moni toring sys‐
tem
The sy stem checks the tyre pressure and the
tyre temp erature of the tyres fitted totheve hicle
by means of a tyre pressu resensor.
The tyre pressure and the tyre temp erature
appear in the on-board computer (/ page 402).
If th ere is a subs tantial pressure loss or if the
tyre temp erature is excessive, you will be
wa rned with display messages (/ page477) or
th eh warning lamp in the instrument clus ter
( / page 500). The tyre pressure monitoring sy
stem is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation.
In most cases, the tyre pressure monitoring sys‐
te m will auto matically update the new refere nce
va lues af teryo u ha vechanged the tyre pressure.
Yo u can, ho wever,also update there fere nce val‐
ues byrestarting the tyre pressure monitoring
sy stem manually (/ page 403).
Sy stem limits
The sy stem may be impaired or may not function
particularly in thefo llowing situations:
R the tyre pressure has been set incor rectly
R sudden pressure loss caused byafo re ign
object penetrating the tyre, forex ample
R there is a malfunction caused byano ther
ra dio signal source
Checking the ty repressure with the tyre
pressure moni toring sy stem
Requ irements:
R The ignition is switched on. On-board computer:
4 Service 5
Tyres
One of thefo llowing displa ysappears:
R Cur rent tyre pressure and tyre temp erature
of the individual wheels: R
Tyre pressures will be displayed after a few
minutes of driving
R Tyre pressure monitor active: thete ach-in
process of the sy stem is not yet compl ete.
The tyre pressures are already being moni‐
to re d. #
Compare the tyre pressure with there com‐
mended tyre pressure forth e cur rent operat‐ 402
Wheels and tyres

ing condition (/
page 401). Observethe
no tes on tyre temp erature (/ page 400).
% The values displa yed in the on-board com‐
puter may deviate from those of the tyre
pressure gauge as they referto sea le vel.At
high ele vations, the tyre pressure values
indicated bya pressure gauge are higher
th an those shown bythe on-board computer.
In this case, do not reduce the tyre pressure.
Re starting the ty repressure moni toring sys‐
tem
Re quirements:
R The recommended tyre pressure is cor rectly
set forth ere spective operating status on all
of the wheels (/ page 400).
Re start the tyre pressure monitoring sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. On-boa
rdcompu ter:
4 Service 5
Tyres #
Swipe down wards on Touch Control on the
left-hand side of thesteering wheel.
The Use current tyre pressures as new refer-
ence values? message is shown in the multi‐
function displa y. #
Torestart, press Touch Control on the left-
hand side of thesteering wheel.
The Tyre press. monitor restarted message is
shown in the multifunction displa y.
Cur rent wa rning messages are dele ted and
th eye llow h warning lamp goes out.
Af teryo u ha vebeen driving for a few
minutes, the sy stem checks whe ther the cur‐
re nt tyre pressures are wi thin the specified
ra nge. The cur rent tyre pressures are then
accep ted as refere nce values and monitored.
Be sure toalso pay attention tothefo llowing
re lated topic:
R Notes on tyre pressure (/ page 400) Ty
re pressure loss warning sy stem Fu
nction of the ty repressure loss warning
sy stem
The tyre pressure loss warning sy stem warnsthe
driver bymeans of display messa ges when there
is a se vere tyre pressu reloss.
Sy stem limits
The sy stem may be impaired or may not function
particular lyin thefo llowing situations:
R incor rectly set tyre pressure
R sudden pressure loss caused, forex ample,
by afo re ign object penetrating the tyre
R steady pressure loss in se veral tyres
The sy stem has a restricted or del ayed function
particularly in thefo llowing situations:
R poor ground cond itions, e.g. snow or gr avel
R driving with snow chains
R when adopting a very sporty driving style
with high cornering speeds or sudden accel‐
eration
R driving with a very heavy or lar getrailer Wheels and tyres
403

R
driving with a high load
The tyre pressure loss warning sy stem is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation and tocheck
it.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 400)
R Display messages about the tyres
(/ page 477)
Rest arting the ty repressure loss warning
sy stem
Requ irements:
R The recommended tyre pressure is cor rectly
set forth ere spective operating status on all
wheels.
Re start the tyre pressure loss warning sy stem in
th efo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
newly fitted. On-boa
rdcompu ter:
4 Service 5
Tyres #
Swipe down wards on Touch Control on the
left-hand side of thesteering wheel.
The Run Flat Indicator active Restart: press
Touch Control message is shown in the mul‐
tifunction displa y. #
Tobegin restart, press Touch Control on the
left-hand side of thesteering wheel.
The Tyre pressure now OK? message is
shown in the multifunction displa y. #
Select Yes. #
Toconfirm restart, press Touch Control on
th e left-hand side of thesteering wheel.
The Run Flat Indicator restarted message is
shown in the multifunction displa y.
Af teryo u ha vedriven for a few minutes, the
tyre pressu reloss warning sy stem monitors
th e set tyre pressures of all the tyres.
Be sure toalso pay attention tothefo llowing
re lated topic:
R Notes on tyre pressure (/ page 400) Wheel
change Note
s on selecting, fitting and replacing
tyres *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
WARNING Risk of inju rythro ugh incor‐
re ct sizes of wheels and tyres
If wheels and tyres of the wrong size are fit‐
te d, the wheel brakes or components in the
brake sy stem and in the wheel suspension
may be damaged. #
Alw aysre place wheels and tyres with
th ose that fulfil the specifications of the
original part.
Fo r wheels, pay attention tothefo llowing:
R Designation
R Type 404
Wheels and tyres

#
Avoid obs tacles or drive especial lycare‐
ful ly. #
Reduce your speed when driving over
ke rbs, speed bumps, manhole co vers
and po tholes. #
Avoid particular lyhigh kerbs. *
NO
TEPossible wheel and tyre damage
when parking on kerbs or in po tholes Pa
rking on kerbs or in po tholes may damage
th e wheels and tyres. #
If possible, park only on flat sur faces. #
Avoid kerbs and po tholes when parking. *
NO
TEDama getoelectronic component
parts from the use of tyre-fitting tools Ve
hicles with a tyre pressure monitoring
sy stem: electronic component parts are
located in the wheel. Tyre-fitting tools should
not be applied in the area of theva lve.
The tools could damage the electronic com‐
ponent parts. #
Have the tyres changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C use i
M+S- tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
The special tire tread in combination with the
optimised tyre compound means that the
ri sk of skidding and aquaplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use i M+S tyres at outside temp er‐
atures of less than 10 °C. #
Only use the tyres forth eir intended
purpose. Obser
vethefo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle. 406
Wheels and tyres