2018 MERCEDES-BENZ SLC ROADSTER change wheel

Vehicles withaTIREFI Tkit
:Tire sealant fille rbottle
;Fus ealloc ation chart
=Tire inflation compressor
?Towing eye
XLiftthe trunk floor up.
XUse the TIREFIT kit (Ypage 247).
iExample :equipment and country-specific
variations possible.
Vehicles with acolla psibl espare wheel
The collapsibl espare whee lcan be found in the
stowag ewellu nder the trunk floor (Ypage 221).
:Folding whee lchock
;Fus ealloc ation chart
=Jack
?Shee tfor faulty wheel
AAlignment bolt
BLugw rench
CTowing eye
DValve extractor
ETire inflation compressor
XRemove the collapsibl espare wheel
(Ypage 286).
Flat tire
Preparin gthe vehicle
Your vehicl emaybe equipped with:
Rtire sw ithr un-fla tcharacteristics
(MOExtended tires) (Ypage 247)
Vehicl epreparation is not necessary on vehi-
cle sw ithM OExtende dtires
Ran emergency spare whee l(Ypage 285)
Vehicles with the Mercedes-Benz emer-
genc ycalls ystem: in the event of aflatt ire ,you
can contact the Mercedes-Benz emergency call
system customerc enter.
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 feature run-fla tcharacteristics,
e.g .winter tires. ATIREFIT kit maybeo btained
from aquali fied specialist workshop.
Informatio nonchanging and mounting wheels
(
Ypage 280).
XStop the vehicl eonsolid,non-slippery and
level ground ,asfar away as possibl efrom
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicl eagain st rolling away
(Ypage 131).
XIf possible, bring the front wheels into the
straight-ahea dposition.
XSwitch off the engine.
XVehicles withou tKEYLESS -GO:remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the driv-
er' sd oor.
T he vehicl eelectronics now have status 0.
Thi sist he same as the SmartKey having been
removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 116).
XMake sure thatt he passengersare not endan-
gered as they do so. Make sure thatnoo ne is
nea rthe danger are awhile awheel is being
changed .Anyone wh oisnot directlya ssisting
in the whee lchange should, for example,
stand behind the barrier.
XGe toutof the vehicle. Paya ttentiontotraffic
conditions when doing so.
XClose the driver'sd oor.
246Flat tire
Breakdo wn assis tance

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

The bracketsfor the screw-in towing eye are
located in the bumpers. They are at the front and
at the rear, behind the covers.
XRemove the towing eye from the vehicle tool
kit (Ypage 245).
XPress the mark on cover :inwards in the
direction of the arrow.
XTake cover :off the opening.
XScrew in the towing eye clockwise as far as it
will go and tighten it.
Removing the towing eye
XUnscrew and remove the towing eye.
XAttach cover :to the bumper and press until
it engages.
XPlace the towing eye in the vehicle tool kit.
Towing avehicle with both axles on
the ground
GWARNING
You can no longer steer the vehicle if the
steerin gwheel lock has been engaged. There
is ar isk of an accident.
Always switch off the ignition when towing the
vehicle with atow cable or atow bar.
The automatic transmission shifts to position
j automatically when you open the driver's or
front-passenger door or when you remove the
SmartKey from the ignition lock. In order to ensure that the automatic transmis-
sion stays in position
iwhen towing away the
vehicle, you must observe the following points:
XSwitch on the hazard warning lamps
(Ypage 97).
XTurn the SmartKey to position 2in the igni-
tion lock.
On vehicles with KEYLESS-GO, use the Smart-
Key instead of the Start/Stop button
(
Ypage 116).
XDepress and hold the brake pedal.
XShift the transmission to position i.
XRelease the brake pedal.
XRelease the electric parking brake.
XLeave the SmartKey in position2in the igni-
tion lock.
In order to signal achange of direction when
towing the vehicle with the hazard warning
lamps switched on, use the combination switch
as usual. In this case, only the indicator lamps
for the direction of travel flash. When you reset
the combination switch, the hazard warning
flashers start flashing again.
It is important that you observe the safety
instructions when towing away your vehicle
(
Ypage 256).
Towing the vehicle with the rear axle
raised
!
The ignition must be switched off if you are
towing the vehicle with the rear axle raised.
Intervention by ESP
®could otherwise dam-
age the brake system.
!Vehicles with automatic transmission must
not be towed with the rear axle raised. The
vehicle/trailer combination may otherwise
swerve or even roll over.
Towing and tow-starting257
Breakdown assistance
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

Avoidtire pressures thata retoo high in al lthe
tires, including the spare wheel.
Overinflated tire smay:
Rincrease the braking distance
Radversel yaffect handling
Rwear excessivel yand/or unevenly
Rhave an adverse effect on rid ecomfort
Rbe more susceptibl etodamage
Maximum tire pressures
:Example: maximu mpermissibl etire pres-
sure
Never exceed the maximu mpermissibl etire
inflation pressure. Alway sobserve the recom-
mended tire pressure for your vehicl ewhen
adjusting the tire pressure (
Ypage 263).
iThe actual values for tire sarevehicle-spe-
cifi cand mayd eviate from the values in the
illustration.
Checkin gthe tire pressures
Important safety notes
The tire pressure monitor does not warn yo uof:
Rincorrectly set tire pressure
Rsudden loss of tire pressure, e.g .from afor-
eign object thath aspenetrated the tire
Observ ethe notes on tire pressure
(
Ypage 263). Informatio
nonairpressure for the tire sonyour
vehicl ecan be found:
Ron the vehicle's Tire and Loading Information
placard on the B-pillar
Ron the tire pressure table in the fuel fille rflap
Rin the "Tire pressure" section
Checkin gtire pressuresm anually
To determine and set the correct tire pressure,
proceedasfollows:
XRemove the valve cap of the tire thati stobe
checked.
XPress the tire pressure gaug esecurel yonto
the valve.
XRead the tire pressure and compar eittothe
recommende dvalue on the Tire and Loading
Informatio nplacard or the tire pressure table
(
Ypage 263).
XIf the tire pressure is too low, increase the tire
pressure to the recommende dvalue.
XIf the tire pressure is too high, release air. To
do so, press down the meta lpinin the valve,
using the tip of apen for example. The ncheck
the tire pressure agai nusing the tire pressure
checker.
XScrew the valve cap onto the valve.
XRepeat thes estepsf or the othe rtires.
Tire pressure loss warning system
(Canada only)
General notes
While the vehicl eisinmotion, the tire pressure
loss warning system monitors the set tire pres-
sure using the rotational speed of the wheels.
Thi senables the system to detect significant
pressure loss in atire .Ift he speed of rotatio nof
aw heel changesasa resultofa loss of pressure,
ac orresponding warning message will appear in
the multifunctio ndisplay.
Yo uc an recognize the tire pressure loss warning
by the Run FlatI ndicator Active Press
'OK'toRestartmessage which appear sin
the Serv.menu of the multifunctio ndisplay.
Informatio nonthe message display can be
found in the "Restarting the tire pressure loss
warning system "sectio n(
Ypage 267).
266Tire pressure
Wheel sand tires

Important safety notes
The tire pressurewarning system does no twarn
you of an incorrectl yset tire pressure. Observ e
th en otes on th erecommended tire pressur e
(
Ypage 263).
The tire pressur eloss warning does no treplace
th en eedtor egularly chec kthe tire pressure. An
eve nloss of pressur eonseveral tires at th e
sam etimec anno tbed etecte dbythetire pres-
sur eloss warning system.
The tire pressur emonitor is no table to warn you
of as udde nloss of pressure, e.g. if th etirei s
penetrated by aforeign object. In th eevent of a
sudde nloss of pressure, brin gthe vehicl etoa
halt by braking carefully. Avoid abrup tsteering
movements.
The function of th etirep ressur eloss warning
system is limite dordelayedif:
Rsnow chain sare mounte donyour vehicle's
tires .
Rroad condition sare wintry.
Ryou are driving on san dorgravel.
Ryou adopt averys port ydriving style (corner-
ing at high speeds or driving wit hhigh rates of
acceleration).
Ryou driv ewithah eavyload.
Restarting th etirep ressure loss warn-
ing system
Restart th etirep ressur eloss warning system if
you have :
Rchanged th etirep ressur e
Rchanged th ewheels or tires
Rmounte dnew wheels or tires
XBefore restarting ,makes uret hatthe tire
pressures are set properly on all four tires for
th er espective operating conditions.
The recommended tire pressur ecan be foun d
on th eTirea nd Loading Information placard
on th eB-pillar .Additionally, atirep ressur e
table is attached to th efuel filler flap .The tire
pressur eloss warning system can only giv e
reliable warning sifyou have set th ecorrect
tire pressure. If an incorrec ttirep ressur eis
set ,the se incorrec tvalue swill be monitored.
XAlsoo bserv ethe note sint hesection on tire
pressures (Ypage 263).
XMakesuret ha tthe SmartKey is in position 2
in th eignition loc k(Ypage 116).
XPress the= or; buttononthesteering
whee ltos elect th eServ.menu.
XPress th e9 or: buttontos elect
Tir ePressure.
XPress th ea button.
The Run Fla tIndicator Active Press
'OK'toR estartmessage appear sinthe
multifunction display.
If you wish to confirm th erestart :
XPress th ea button.
The TirePressure Now OK?message
appear sinthemultifunction display.
XPress th e9 or: buttontos electYes.
XPress th ea button.
The Run Fla tIndicator Restartedmes -
sage appear sinthemultifunction display.
Afte rateach-in period, th etirep ressur eloss
warning system will monitor th eset tire pres-
sures of all four tires .
If you wish to cancel th erestart :
XPress th e% button.
or
XIf th eTir ePressure Now OK?message
appears, use th e9 or: buttonto
select Cancel
.
XPress th ea button.
The tire pressur evalue sstoredatt helast
restar twill continue to be monitored.
Tire pressure monitor
General notes
If at irep ressur emonitor is installed, th evehi-
cle's wheels hav esensor sthatm onitor th etire
pressures in all four tires .The tire pressur emon-
itor warn syou if th epressur edrops in on eor
mor eoft hetires .The tire pressur emonitor only
function sifthecorresponding sensor sare
installed in all wheels.
Information on tire pressures is displayed in th e
multifunction display. Afte rafew minute sof
driving ,the curren ttirep ressur eofeacht irei s
shown in th eServ.
men uoft hemultifunction
display.
Tire pressure267
Wheels and tires
Z