2017 MERCEDES-BENZ C-Class COUPE tire pressure

Tire pressure reached
GWARNING
At ire temporaril yseale dwitht ire sealant
impairs the drivin gcharacteristics and is not
suitabl efor highe rspeeds. There is arisko f
accident.
Yo us houl dtherefore adap tyou rd rivin gstyle
accordingly and drive carefully. Do not exceed the specifie dmaximum spee dwithat ire that
hasb eenr epaired using tire sealant.
The maximum permissibl espeed foratire
seale dwitht ire sealant is 50 mph (80 km/h).
The uppe rpartoft he TIREFIT sticker must be
affixe dtothe instrument cluster in the driver's
field of vision.
!Residu efromt he tire sealant mayc ome out
of the fille rhosea fter use. Thi scould cause
stains.
Therefore ,place the fille rhoseint he plastic
ba gw hich containe dthe TIREFIT kit.
HEnvironmental note
Hav ethe used tire sealant bottle dispose dof
professionally, e.g .ataqualified specialist
workshop.
If at ire pressure of 200 kPa (2.0 bar/29 psi) has
been attaine dafter ten minutes:
XSwitch off the tire inflation compressor.
XUnscrew the fille rhosef romt he valve of the
faulty tire.
XStow the tire sealant bottle and the tire infla-
tio nc ompressor.
XPul lawa yimmediately.
XStop after drivin gfor approximately ten
minute sand check the tire pressure with the
tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).
GWARNING
If the required tire pressure is not reached
after drivin gfor as hort period, the tire is too
badl ydamaged .The tire sealant canno trepair
the tire in thisi nstance.Damaged tire sand a
tire pressure thati stoo lo wcan significantly
impai rthe vehicle's braking and drivin gchar-
acteristics .There is ariskofa ccident.
Do not continue driving. Contact aquali fied
specialis tworkshop.
iIn cases such as the one mentione dabove,
contact an authorize dMercedes-Benz Cen-
ter. Or cal l1-800-FOR-MERCede s(in the
USA) or 1-800-387-0100 (i nCanada).
XCorrect the tire pressure if it is stil latleast
130 kPa (1.3 bar/19 psi). See the Tire and
Loading Informatio nplacard on the driver's
side B-pillar or the tire pressure table in the
fue lfille rflapf or values.
XTo increase the tire pressure: switch on the
tire inflation compressor.
XTo reduc ethe tire pressure: depress pres-
sure release button :next to pressure
gauge ;.
XWhenthe tire pressure is correct, unscrew the
fille rhosef rom the valve of the seale dtire.
XScrew the valve cap onto the tire valve of the
seale dtire.
XTo remove the tire sealant bottle from the tire
inflation compressor ,press together the lock-
ing tab sonthe yellow cap.
304Flat tire
Breakdo wn assis tance

Important safety notes
GWARNING
If wheels and tires of th ewrong siz eare used,
th ew hee lbrakes or suspension component s
may be damaged. Ther eisariskofana cci-
dent.
Always replace wheels and tires wit hthose
that fulfill th especification softheoriginal
part .
When replacing wheels, mak esuretou se the
correct:
Rdesignation
Rmodel
When replacing tires ,makes uretou se the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNIN G
Af lat tire severely impairs th edriving ,steer -
ing and braking characteristics of th evehicle.
Ther eisar iskofa ccident.
Tires without run-flat characteristics :
Rdo notdrivew ithaf lat tire.
Rimmediately replace th eflat tire wit hyour
emergenc yspar ew hee lors parew heel, or
consult aqualified specialist workshop.
Tires wit hrun-flat characteristics :
Rpay attention to theinformation and warn -
ing notice sonMOExtended tires (tire swith
run-flat characteristics).
Accessories that are no tapprove dfor your vehi-
cle by Mercedes-Ben zorare notbein gused cor-
rectl ycan impair th eoperating safety.
Before purchasing and usin gnon-ap proved
accessories, visit aqualified specialist work-
sho pand inquire about :
Rsuitability
Rlegal stipulation s
Rfactory recommendation sFurther information regarding wheels and tires
can be foun
dunder "Wheel/tire combinations"
(
Ypage 340).
You can ask for information regarding permitte d
wheel-tire combination satanauthorized
Mercedes-Ben zCenter.
Information on tire pressur ecan be found:
Ron th eTirea nd Loading Information placard
on th eB-pillar on th edriver' sside
(
Ypage 326)
Rin th etirep ressur etable in th efuel filler flap
(Ypage 150)
Runder "Tir epressure" (Ypage 319)
Operation
Information on driving
Checkthe tire pressur ewhen th evehicl eis
heavily laden and adjust prio rtoatrip.
While driving ,pay attention to vibrations, noises
and unusual handlin gcharacteristics ,e.g.p ull-
ing to on eside .This may indicat ethatthe
wheels or tires are damaged. If you suspec ttha t
at ireisd efective, reduce your spee dimmedi-
ately. Stop th evehicl eass oonasp ossible to
chec kthe wheels and tires for damage. Hidden
tire damag ecould also be causing th eunusual
handlin gcharacteristics .Ifyou fin dnos ignsof
damage, hav ethe tires and wheels checke data
qualified specialist workshop.
When parking your vehicle, mak esuret hatthe
tires do no tget deformed by th ecurboro ther
obstacles. If they canno tbeavoided, driv eover
obstacles suc hascurbs slowly and at an obtuse
angle. Otherwise, you may damag ethe wheels
or tires .
Notes on high performance tires
GWARNIN G
Due to th especial tire tread in combination
wit hthe optimized rubber compound ,the re is
an increased ris kofhydroplaning and skid-
din gonad amp or wet road surface. tire gri pis
also noticeably reduce datlow outside tem-
peratures and low tire operating tempera-
tures. Ther eisariskofana ccident.
316Operation
Wheels and tires

Turn on ESP®and adapt your driving style
accordingly. When the outside temperature
falls below 10 †, use M+S tires.
iDifferent driving styles may lead to high tire
wear and the tires may reach the minimum
tire tread depth after only ashort time.
Regular checking of wheels and tires
GWARNING
Damaged tires can cause tire inflation pres-
sure loss. As aresult, you could lose control of
your vehicle. There is arisk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Check wheels and tires for damage at least once
am onth. Check wheels and tires after driving
off-road or on rough roads. Damaged wheels
can cause aloss of tire pressure. Pay particular
attention to damage such as:
Rcuts in the tires
Rpunctures
Rtears in the tires
Rbulges on tires
Rdeformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of
the tire (
Ypage 317). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have avalve cap to protec tthe
valve against dirt and moisture. Do not mount
anything ontot he valve other than the standard
valve cap or other valve caps approved by
Mercedes-Benz for your vehicle. Do not use any
other valve caps or systems, e.g. tire pressure
monitoring systems.
Regularly check the pressure of all the tires par-
ticularly prior to long trips. Adjust the tire pres-
sure as necessary (
Ypage 319).
The service life of tires depends, among other
things, on the following factors:
Rdriving style
Rtire pressure
Rdistance covered
Notes on tire tread
GWARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk
of hydroplaning increases, in particular where speed is not adapted to suit the driving con-
ditions. There is arisk of accident.
If the tire pressure is too high or too low, tires
may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached.
Marking :shows where the bar indicator
(arrow) for tread wear is integrated into the tire
tread.
Treadwear indicators (TWI) are required by law. Six indicators are positioned on the tire tread.
They are visible once atread depth of approx-
imately áin (1.6 mm) has been reached. If this
is the case, the tire is so worn that it must be
replaced.
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same type
and make.
Operation317
Wheels and tires
Z

Exception: it is permissibletoinstalladiffer-
ent typ eormakeint he event of aflatt ire.
Observe the "MOExtende dtires(tires with
run-flat characteristics" sectio n(
Ypage 301).
ROnlymount tire softhe correct size onto the
wheels.
RBrea kinn ew tire satmoderate speeds for the
first 60 miles (100 km). The yonlyr each their
full performance after thisd istance.
RDo not drive with tire swhich have too little
trea ddepth,ast hissignificantl yreduce sthe
tractio nonw etroads (hydroplaning).
RReplace the tire safter sixy earsat the latest,
regardless of wear.
MOExtende dtires(tires with run-flat
properties)
With MOExtende dtires(tires with runf latc har-
acteristics), yo ucan continue to drive your vehi-
cle eve nifthere is atotall ossofp ressure in one
or mor etires.
MOExtende dtiresm ayonl ybeu sedinc onjunc-
tio nw ithana ctive tire pressure loss warning
system or with an active tire pressure monitor
and on wheels specifically teste dbyMercedes-
Benz.
Note sond rivingwithM OExtende dtiresw itha
fla ttire (
Ypage 301).
Vehicles equipped with MOExtende dtiresa re
not equipped with aTIREFIT kit at the factory .It
is therefore recommende dthaty ouadditionally
equi pyourvehicl ewithaT IREFIT kit if yo umount
tire sthatd onot featur erun-flat properties, e.g.
winter tires. ATIREFIT kit can be obtained from
aq uali fied specialis tworkshop.
Winter operation
General notes
Hav eyourv ehicl ewinter-proofed at aquali fied
specialis tworkshop at the onse tofwinter.
Observe the note sinthe "Changing awheel "
sectio n(
Ypage 335).
Driving with summe rtires
At temperatures belo w45‡(+7 †),summer
tire slos ee last icity and therefore tractio nand
braking power. Chang ethe tire sonyourvehicle to M+S tire
s. Usingsumme rtires at very cold
temperatures could cause cracks to form,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility for
this type of damage.
GWARNING
Damage dtires can cause tire inflation pres-
sure loss. As aresult, you could lose control of
you rvehicle. There is arisk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
M+S tires
GWARNING
M+S tires with atire tread depth of less than
ã in (4 mm) are not suitable for use in winter
and do not provid esufficient traction. There is
ar isk of an accident.
M+S tires with atread depth of less than ãin
(4 mm) must be replaced immediately.
At temperatures belo w45‡ (+7 †), use winter
tires or all-season tires. Bot htype soft ire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possibl egrip in wintry road conditions.
Only these tires wil lallow driving safety systems
such as ABS and ESP
®to function optimally in
winter. Theset ires have beend eveloped specif-
ically for driving in snow.
Use M+S tires of the same make and tread on all
wheels to maintain safe handling characteris-
tics.
Always observe the maximu mpermissible
speeds pecified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
XCheck the tire pressures (Ypag e322).
XRestart the tire pressure monitor
(Ypag e325).
318Wintero peration
Wheels and tires

Snow chains
GWARNING
If snow chains are installed to the front
wheels, they may drag against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tires.
There is arisk of an accident.
To avoid hazardous situations:
Rnever install snow chains to the front
wheels
Ralways install snow chains in pairs to the
rear wheels.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that have
been specially approved for your vehicle by
Mercedes-Benz, or are of acorresponding
standard of quality. For more information,
please contact aqualified specialist workshop.
If you inten dtomount snow chains, please bear
the following points in mind:
RSnow chains may not be mounted on all
wheel/tire combinations .Permissible wheel-
tire combination s(
Ypage 340).
ROnly use snow chains when driving on roads
completely covered by snow. Remove the
snow chains as soon as possible when you
come toaroad that is not snow-covered.
RLocal regulations may restrict the use of snow
chains. Observe the appropriate regulations if
you wish to mount snow chains.
RDo not exceed the maximum permissible
speed of 31 mph (50 km/h).
ROn vehicles with AIRMATIC, you must drive at
raised vehicle level if snow chains have been
installed (
Ypage 172).
RWhen snow chains are installed, never use
Active Parking Assist (Ypage 177).
You may wish to deactivate ESP®when pulling
away with snow chains installed:
RAll vehicles (except Mercedes ‑AMG vehicles)
(Ypage 67)
RMercedes‑AM Gvehicles (Ypage 68)
You can thereby allow the wheels to spin in a
controlled manner, achieving an increased driv- ing force (cuttin gaction).
Tire pressure
Tire pressures pecifications
Important safety notes
GWARNING
Underinflated or overinflated tires pose the
following risks:
Rthe tires may burst, especially as the load
and vehicle speed increase.
Rthe tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
Rthe driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
There is arisk of an accident.
Follow recommended tire inflation pressures
and check the pressure of all the tires includ-
ing the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginning along journey
Runder different operating conditions, e.g.
off-road driving
If necessary, correct the tire pressure.
The data on the Tire and Loading Information
placard and tire pressure table shown here are
examples. Tire pressure specifications are vehi-
cle-specific and may deviate from the data
shown here. The tire pressure specifications
that are valid for your vehicle can be found on
the Tire and Loading Information placard and
tire pressure table on the vehicle.
General notes
The recommended tire pressures for the tires
mounted at the factory can be found on the
labels described here.
Further information on tire pressures can be
obtained at aqualified specialist workshop.
Tire pressure319
Wheels and tires
Z

Tire and LoadingInfor matio nplacard
:Recommended tire pressures
The Tire and Loading Informatio nplacard is on
the B-pillar on the driver's side (
Ypage 326).
The Tire and Loading Informatio nplacard con-
tains the recommende dtire pressures for cold
tires. The recommende dtire pressures ar evalid
for the maximum permissibl eloa da nd up to the
maximum permissibl evehicl espeed.
Tire pressure table
The tire pressure table is on the insid eofthe fuel
fille rflap. It shows the tire pressure for al ltires
permitted at the factory for thisv ehicle; see
illustratio n(example).
The tire pressure table contains the recommen-
de dp ressures for col dtiresfor various operat-
ing conditions, i.e .differin gloa da nd spee dcon-
ditions.
If at ire size precedes atire pressure, the fol-
lowing tire pressure informatio niso nlyv alid for
thatt ire size; see illustratio n(example).
The load conditions "partiall yladen "and "fully
laden" ar edefine dint he table for different num-
bers of occupants and amounts of luggage.T he
actual numbe rofseats mayd iffer.
Some tire pressure table sshowo nlyt he rim
diameters instea dofthe full tire size, e.g. R18.
The rim diamete rispartoft he tire size and can
be found on the tire sidewall (
Ypage 330).
If the tire pressures have been set to the lower
values for lighte rloads and/or lowe rroad
speeds ,the pressures shoul dbereset to the
highe rvalues :
Rif youwanttod rive with an increased load
and/or
Rif yo uwanttod rive at highe rroa ds peeds
The tire pressures for increased load sand/or
highe rroa ds peeds, shown in the tire pressure
table ,mayhave anegative effect on driving
comfort.
If the tire pressure is not set correctly, thisc an
lead to an excessive build-u pofheata nd asud-
de nlossofp ressure.
For mor einformation, contact aquali fied spe-
cialist workshop.
320Tire pressure
Wheel sand tires

Important notes on tire pressure
GWARNING
If th etirep ressur edrops repeatedly, th e
wheel, valv eortirem ay be damaged. Tir e
pressur ethatist oolow may result in atire
blow-out .Ther eisar iskofana ccident.
RCheckthe tire for foreign objects .
RCheckwhether th ewhee lislosing air or th e
valv eisl eaking .
If you are unable to rectify th edamage, con-
tac taq ualified specialist workshop.
GWARNIN G
If you fit unsuitable accessories onto tire
valves, th etirev alves may be overloaded and
malfunction ,whic hc an caus etirep ressur e
loss .Due to their design ,retrofitte dtirep res-
sur em onitors keep th etirev alveo pen .This
can also result in tire pressur eloss .Ther eisa
ris kofana ccident.
Only screw th estandard valv ecap or other
valv ecapsa pprove dbyMercedes-Ben zfor
your vehicl eontot he tire valve.
Use asuitable pressur egauge to chec kthe tire
pressure. The outer appearanc eofatired oes
no tp ermit any reliable conclusio nabout th etire
pressure. On vehicles equipped wit hthe elec -
tronic tire pressur emonitor, th etirep ressur e
can be checke dintheon-board computer.
The tire temperature and pressur eincreas e
when th evehicl eisinm otion.This is dependen t
on th edriving spee dand th eload.
Therefore, you should only correc ttirep res-
sures when th etires are cold.
The tires are cold:
Rif th evehicl ehas been parked wit hthe tires
out of direct sunligh tfor at least three hour s
and
Rif th evehicl ehas no tbeen driven further than
1m ile (1. 6km)
The tire temperature changes depending on th e
outside temperature, th evehicl espee dand th e
tire load. If th etiret
em p
erature changes by
18 ‡(10 †), th etirep ressur echanges by
approximately 10 kP a(0.1b ar/1.5 psi) .Take
this int oaccoun twhen checkin gthe pressur eof
warm tires .Onlyc orrect thet irep ressur eifitisto
ol ow for th ecurren toperating conditions. If
you chec kthe tire pressur ewhen th etires are
warm ,the resulting value will be higher than if
th et ires were cold. This is normal. Do no t
reduce th etirep ressur etothevalue specifie d
for cold tires .The tire pressur ewould otherwise
be to olow.
Observ ethe recommended tire pressures for
cold tires :
Ron theTirea nd Loading Information placard
on th eB-pillar on th edriver' sside
Rin th etirep ressur etable on th efuel filler flap
(Ypage 150)
Underinflated or overinflated tires
Underinflated tires
GWARNIN G
Tires wit hpressur ethatist oolow can over-
heat and burs tasaconsequence .Inaddition ,
they also suffer from excessiv eand/o rirreg-
ular wear, whic hcan severely impair th ebrak -
ing properties and th edriving characteristics .
Ther eisar iskofana ccident.
Avoid tire pressures that are to olow in all th e
tires ,includin gthe spar ewheel.
Underinflated tires may:
Roverheat, leadin gtotired efects
Radversely affec thandlin g
Rwear excessively and/o runevenly
Rhav eana dverse effec tonfuel consumption
Overinflated tires
GWARNIN G
Tires wit hexces sively high pressur ecan burs t
because they are damaged mor eeasil yby
road debris, pothole setc.Ina ddition ,the y
also suffer from irregular wear ,whic hc an
severely impair th ebraking properties and th e
driving characteristics .Ther eisar iskofa n
accident.
Avoid tire pressures that are to ohigh in all th e
tires ,includin gthe spar ewheel.
Tire pressure321
Wheels and tires
Z

Overinflated tires may:
Rincrease the braking distance
Radversely affect handling
Rwear excessively and/or unevenly
Rhave an adverse effect on ride comfort
Rbe more susceptible to damage
Maximum tire pressures
:Example: maximum permissibletire pres-
sure
Never exceed the maximum permissiblet ire
inflation pressure. Alwayso bserve the recom-
mended tire pressure for your vehicle when
adjusting the tire pressure (
Ypage 319).
iThe actual value sfor tires are vehicle-spe-
cific and may deviate from the valuesint he
illustration.
Checking the tire pressures
Important safety notes
Observe the notes on tire pressure
(Ypage 319).
Information on air pressure for the tires on your
vehicle can be found:
Ron the vehicle's Tire and Loading Information
placard on the B-pillar
Rin the tire pressure table in the fuel filler flap
(Ypage 150)
Rin the "Tire pressure" section
Checking tire pressures manually
To determine and set the correct tire pressure,
proceed as follows:
XRemove the valve cap of the tire that is to be
checked.
XPress the tire pressure gauge securely onto
the valve.
XRead the tire pressure and compare it to the
recommended value on the Tire and Loading
Information placard or the tire pressure table (
Ypage 319).
XIf the tire pressure is too low, increase the tire
pressure to the recommended value.
XIf the tire pressure is too high, release air. To
do so, press down the metal pin in the valve,
using the tip of apen for example. Then check
the tire pressure againu sing the tire pressure
checker.
XScrew the valve cap onto the valve.
XRepeatt hese steps for the other tires.
Tire pressure loss warning system
General notes
While the vehicle is in motion, the tire pressure
loss warning system monitors the set tire pres-
sure using the rotational speed of the wheels.
This enables the system to detect significant
pressure loss in atire. If the speed of rotation of
aw heel changes as aresult of aloss of pressure,
ac orresponding warning message will appeari n
the multifunction display.
You can recognize the tire pressure loss warning
by the Run Flat Indicator Active
Press'OK' to Restartmessage which appears in
the Servicemenu of the multifunction display.
Information on the message displayc an be
found in the "Restarting the tire pressure loss
warning system" section (
Ypage 323).
Important safety notes
The tire pressure warning system does not warn you of an incorrectly set tire pressure. Observe
the notes on the recommended tire pressure
(
Ypage 319).
The tire pressure loss warning does not replace
the need to regularly check the tire pressure. An
even loss of pressure on several tires at the
322Tire pressure
Wheels and tires