2018 MERCEDES-BENZ SLC ROADSTER run flat

GWARNING
In the following situations, the tire sealant is
unable to provides ufficient breakdown assis-
tance, as it is unable to seal the tire properly:
Rthere are cuts or puncture sinthe tire larger
than those mentioned above.
Rthe wheelr im is damaged.
Ryou have drivenatv ery low tire pressures or
on aflat tire.
There is arisk of an accident.
Do not drive the vehicle. Contact aqualified
specialist workshop.
GWARNING
The tire sealant is harmfu land causes irrita-
tion. It must not come into contact with your
skin, eye sorclothing or be swallowed.Don ot
inhal eTIREFIT fumes .Keep tire sealant away
from children. There is arisk of injury.
If you come into contact with the tire sealant,
observe the following:
RRinse off the tire sealant from you rskin
immediatel ywith water.
RIf the tire sealant comes into contact with
you reyes, immediatel yrinse them thor-
oughly with cleanw ater.
RIf tire sealant is swallowed,i mmediately
rinse you rmouth out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
RImmediately change out of clothing which
has come into contact with tire sealant.
RIf an allergic reactio noccurs, seek medical
attention immediately.
!Do not operate the tire inflation compressor
for longer than eightm inutes atatime without
ab reak. It may otherwise overheat.
The tire inflation compressor can be operated
again once it has cooledd own.
Comply with the manufacturer’s safety instruc-
tions on the sticker on the tire inflation com-
pressor.
Using the TIREFIT kit
XDo not remove any foreigno bjects which have
penetrated the tire, e.g. screws or nails.
XRemove the tire sealant bottle, the accompa-
nying TIREFIT sticker and the tire inflation
compressor from the stowage wellu nder-
neath the trunk floor (
Ypag e245).
XAffix part :of the TIREFIT sticker to the
instrument cluster withi nthe driver's fieldo f
vision.
XAffix part ;of the TIREFIT sticker near the
valve on the wheelw ith the defective tire.
XRemove filler hoseBand plug =from the
bottom section of the tire inflation compres-
sor housing.
XSlide the yellow filler hose connector into the
mounting on yellow cap Aof tire sealant bot-
tle : until the pluge ngages.
XWith the sealing rings in front, slidey ellow cap
A of tire sealant bottle :into the mounting
of tire inflation compressor ;.
The cap must engag einboth hooks.
248Flat tire
Breakdown assistance

XRemove thecap from valv eC on th efault y
tire.
XScrew filler hos eD onto th evalve.
XInser tplug =intothe cigarette lighte rsocke t
(Ypage 223) or int oa12Vpower socke tin
your vehicl e(Ypage 223).
XTurn theSma rtKey to position 1in th eignition
loc k(Ypage 116).
XPress on and off switch ?on th etirei nflation
compressor to ON.
The tire inflation compressor is switched on .
The tire is inflated.
First ,tires ealan tispumped int othe tire. The
pressur emay briefly ris etoapproximately
50 0k Pa(5.0b ar/7 3psi).
Do not switch off th etirei nflation com -
pressor during this phase .
XLet thetirei nflation compressor run for a
maximum of te nminutes. The tire should then
hav eattained apressur eofatl east 200kPa
(2. 0b ar/29 psi) .
If at irep ressur eof200 kPa( 2.0b ar/29 psi) is
achieved after amaximum of te nminutes, see
(
Ypage 249).
If at irep ressur eof200 kPa( 2.0b ar/29 psi) is
no ta chieved after amaximum of te nminutes,
see (
Ypage 249).
If tire sealan thas escaped, clean it off affecte d
areas as quickly as possible. Use plain water if
possible.
If your clothes are soiled wit htires ealant, hav e
them cleane dwithp erchloroethylen eatadry
cleane rassoo
nasp o
ssible.
Tire pressure not reached
Ifat irep ressur eof200 kPa(2.0 bar/29 psi) has
beena chieved after ten minutes:
XSwitch off the tire inflation compressor.
XUnscrew the filler hose from the valve of the
faulty tire.
Note that tire sealant may escap ewheny ou
unscrew the filler hose.
XVery slowly drive forwards or reverse approx- imately 30 ft (10 m).
XPump up the tire again.
After amaximu moften minutes ,the tire pres-
sure must be at least 200 kPa (2.0 bar/
29 psi).
GWARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and atire
pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is arisk of accident.
Do not continue driving. Contact aqualified
specialist workshop.
Tire pressure reached
GWARNING
At ire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitabl efor higher speeds. There is arisk of
accident.
You should thereforea dapt yourdriving style
accordingly and drive carefully .Donot exceed
the specified maximu mspeedw ithatire that
has beenr epaired using tire sealant.
The maximu mspeedf oratire sealed with tire
sealant is 50 mph (80 km/h). The upper part of
the TIREFIT sticker must be affixed to the instru-
ment cluster in the driver's fieldofv ision.
!Residuefrom the tire sealant may come out
of the filler hose after use .This coul dcause
stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit.
Flat tire249
Breakdowna ssistance
Z

XMake sure that the ignition is switched off
(Ypage 116).
or
XWhen using the SmartKey, turn the SmartKey to position uin the ignition lock and remove
it (
Ypage 116).
XSecure the vehicle against rolling away
(Ypage 131).
All indicator lamps in the instrumen tcluster
must be off.
The fuses are located in various fuse boxes:
RFuse box in the engine compartmentont he
left-hand side of the vehicle, when viewed in
the direction of travel
RFuse box in the trunk
Fuse box in the engine compartment
i
Observe the "Important safety notes" sec-
tion (Ypage 258).
GWARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is arisk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
XMake sure that the windshield wipers are
turned off.
XOpen the hood.
XUse adry cloth to remove any moisture from
the fuse box.
XTo open: open clamps ;.
XRemove fuse box cover :forwards.
XTo close: check whether the seal is lying cor-
rectly in cover :.
XInsert cover:at the rear of the fuse box into
the retainer.
XFold down cover :and close clamps ;.
XClose the hood.
Fuse box in the trunk
i
Observe the "Important safety notes" sec-
tion (Ypage 258).
The fuse box is located in the trunk behind the
partition covering.
XOpen the trunk lid.
XTo open: release cover :on the right and
left-hand sides with aflat object.
XOpen cover :downwards in the direction of
the arrow.
Fuses259
Breakdown assistance
Z

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 ask about :
Rsuitability
Rlegal stipulation s
Rfactory recommendation sFurther information regarding wheels and tires
can be foun
dunder "Wheel/tire combinations"
(
Ypage 284).
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 271)
Rin th etirep ressur etable in th efuel filler flap
(Ypage 130)
Rin th e"Tirep ressure" section
Operation
Information on driving
Chec kthe 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 .
Regula rchecking of wheels and tires
GWARNIN G
Damaged tires can caus etirei nflation pres-
sur eloss .Asar esult,you could lose control of
your vehicle. Ther eisariskofa ccident.
Chec kthe tires regularly for sign sofdamage
and replace any damaged tires immediately.
260Operation
Wheels and tires

Checkwheelsand tires for damag eatleast once
am onth .Checkw heelsa nd tires after driving
off-road or on roug hroads. Damaged wheels
can caus ealoss of tir epressure. Pay particular
attentio ntodamagesucha s:
Rcutsint hetires
Rpunctures inthet ires
Rtears inthet ires
Rbulges on tires
Rdeformatio norsevere corrosiononw heels
Regularly check thetiret read dept hand the
conditio nofthetread across th ewhole widthof
th et ire(
Ypage 261). Ifnecessary, tur nthe
frontw heelstof ull lockino rder to inspectt he
inner sideof thetires urface.
All wheelsm ust haveavalvec ap to protect the
valv eagainst dirtand moisture. Do no tmount
anythingo ntot he valv eother than th estandard
valv ecap or other valv ecaps approved by
Mercedes-Ben zfor your veh icle.Don otuse any
other valv ecaps or systems ,e.g.t irep ressure
monitorin gsystems.
Regularly check thepressureofa llth et ires par-
ticularly priortol ongt rips. Adjus tthe tirep res-
sure as necessary (
Ypage 263).
Observ ethe note sont heemergenc yspare
wheel (
Ypage 285).
The servic elife of tires depends, amon gother
things, on th efollowin gfactors:
Rdriv ing style
Rtirep ressure
Rdist ancecovered
Notes on tir etread
GWAR NING
In suff icient tir etread will reduce tir etraction.
The tir eisnol ongerabletodissipat ewater.
This mean stha tonw et road surfaces ,the risk
of hydroplaning increases, inparticular where
speedisn otadapted to suit th edriving con-
dit ions. Thereisar iskofa cciden t.
If th et irep ressureist oohigh or to olow, tires
may exhibit different leve lsof wear at differ-
entl ocations on th etiret read. Thus,y ou
should regularly check th etread dept hand
th ec onditio noft hetread across th eentire
widt hofa lltires.
Minimum tir etread depthf or:
RSummer tires: âin(3 mm)
RM+S tires: ãin(4 mm)
For safety reasons, replace th etires before
th el egally prescribe dlimit for th eminimum
tir et read depthisr eached.
Marking:shows wheret hebar indicator for
tread wear (arrow) is integrate dintot he tire
tread.
Treadwear indicators (TWI)a re required by law.
Six indicators are positione donthetiret read.
They are vis ibleonce atread depthofa pprox-
imately áin (1. 6mm) has been reached. If this
is th ecase, th etireissow orn that it must be
replace d.
Selecting, mounting and replacing
tires
ROnly moun ttires and wheelsoft hesame type
and make.
Exception: itis permissible to moun tadiffer-
entt ype or mak eintheevent of aflat tire.
Observ ethe "MOExtended tires (tires with
run-flat characteristics)" section
(
Ypage 247).
ROnly moun ttires of th ecorrec tsizeo ntot he
wheels.
RBreak inne wt ires at moderat espeeds for the
first 60 mile s(10 0k m). The ne wtires only
reac htheirfull performance after this dis-
tance.
RDo no tdrivew itht ires whic hhave to olittle
tread depth. This significantly reduces the
traction on wet road s(hydroplaning).
RReplacet hetires after six years at th elatest,
regardless of wear.
Operation261
Wheels and tires
Z

MOExtended tires (tires with run-flat
characteristics)
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rvehi-
cle even if there is atotal loss of pressure in one
or more tires.
MOExtended tires may only be use dinconjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor
and on wheels specifically tested by Mercedes-
Benz.
Notes on driving with MOExtended tires with a
flat tire (
Ypage2 47).
Vehicles equipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory. It
is therefore recommendedt hat you additionally
equip you rvehiclew ithaTIREFIT kit if you mount
tires that do not feature run-fla tcharacteristics,
e.g. winter tires. ATIREFIT kit can be obtained
from aqualified specialist workshop.
Winter operation
General notes
Have you rvehiclew inter-proofed at aqualified
specialist workshopatt he onset of winter.
Observe the notes in the "Changing awheel"
section (
Ypage2 80).
Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on you rvehicle
to M+S tires .Using summe rtires at very cold
temperatures coul dcaus ecracks to form,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility for
this type of damage.
GWARNING
Damaged tires can caus etire inflation pres-
sure loss. As aresult, you coul dlose control of
you rvehicle. There is arisk of accident.
Check the tires regularl yfor 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 provide sufficient 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 below 45 ‡(+7 †), use winter
tires or all-season tires. Both type softire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possibleg rip 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 e266).
XVehicles for Canada: restart the tire pres-
sure loss warning system (Ypag e267).
XRestart the tire pressure monitor
(Ypag e267).
Information about driving with an emergency
spare wheel (
Ypag e285).
Snowc hains
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.
262Wintero peration
Wheels and tires

To avoid hazardous situations:
Rnever install snow chains to the front
wheels
Ralwaysinstall 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,ora re ofacorresponding
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 combinations (
Ypage 284).
ROnly use snow chains when driving on roads
completely covered by snow. Remove the
snow chains as soon as possible when you
come to aroad 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 30 mph (50 km/h).
You may wish to deactivate ESP
®when pulling
away with snow chains installed (Ypage 60).
You can thereby allow the wheels to spin in a
controlled manner ,achieving an increased driv-
ing force (cutting action).
Information about driving with an emergency
spare wheel (
Ypage 285).
Tire pressure
Tire pressur especifications
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, correctt he tire pressure.
The data on the Tire and Loading Information
placard and tire pressure table shown here are
examples. Tire pressure specification sare 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 factor ycan be found on the
labels described here.
Operation with an emergency sparew heel:
information on operation with an emergency
spare wheel can be found in the general notes in
the "Emergency spare wheel" section
(
Ypage 286).
Further information on tire pressures can be
obtained at aqualified specialist workshop.
Tirep ressure263
Wheels and tires
Z

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 einside of th e
fuel filler flap
Rprinte dinyellow on th erim of th eemer-
gency/collapsible spar ewhee l(dependin gon
vehicl eequipment)
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.
Tire pressure265
Wheels and tires
Z