2020 MERCEDES-BENZ SLC ROADSTER Owner's Manual

The
TINismade upofmanufact ureridentific a-
tion code 0044,tiresize 0087,t iretype code 0085
and manufact uringdate0083.
DOT (Departm entofTra nsport ation): tire
symbol 0043marks thatthetire complies with
the requirement softhe U.S. Departm entof
Transport ation.
Manufa ctureridentification code:manufac-
turer identific ationcode0044provides detailson
the tire manufact urer.Newtireshave acode
with twosymbols. Retreaded tireshave acode
with foursymbols.
For further informationabout retreaded tires,
see (Ypage 293).
Tire size: identifier 0087describes thetire size.
Tire typecode: tiretype code 0085can beused
by the manufact urerasac ode todescribe
specific characteristics ofthe tire.
Date ofmanu factur e:date ofmanufact ure
0083 provides informationabout theage ofa
tire. Thefirst andsecond positions represent
the week ofmanufact ure,start ingwith "01"
for the first calendar week.Positions threeand
four represent theyear ofmanufact ure.For
example, atire that ismarked "3214"was
manufact uredinweek 32in2014 .
i Tire
data isvehicle-spec ificand may devi-
ate from thedata inthe example.
Tire chara cteristics This
inform ationdescribes thetype oftire cord
and thenumber oflayers insidewall 0043and
under tiretread 0044.
i Tire
data isvehicle-spec ificand may devi-
ate from thedata inthe example. Definition
ofterm sfor tires andload-
ing Tire
plycomposition andmaterial used
Descr ibesthenumber ofplies orthe number
of layers ofrubber-coat edfabric inthe tire
tread andsidewall .These aremade ofsteel,
nylon, polyester andother materials.
Bar
Metric unitfortire pressure. 14.5038pounds
per square inch(psi) and100 kilopascals (kPa)
are the equivalent of1b ar.
DOT (Departm entofTransport ation)
DOT- marked tiresfulfill therequirement sof
the USD epartm entofTransport ation.
Norm aloccupant weight
The number ofoccupant sfor which thevehicle
is designed multiplied by68 kilograms
(150 lbs).
Uniform TireQuality Grading Stand ards
Au niform standard tograde thequality oftires
with regards totread quality, tiretract ionand
temperat urecharact eristics. Thequality grad-
ing assessment ismade bythe manufact urer
following specification sfrom theU.S. govern-
ment .The ratings aremolded intothesidewall
of the tire.
Recommended tirepressur es
The recomm endedtirepressure appliestothe
tires mounted atthe factor y.
The Tire andLoading Information placard con-
tains therecomm endedtirepressures forcold
tires onafully loaded vehicle andforthe maxi-
mum permissible vehiclespeed.
The tirepressure tablecontains therecom-
mended pressures forcold tires forvarious
operating conditions,i.e.differing loadand
speed conditions.
Increased vehicleweightduetooptional
equipm ent
The combined weightofall standard and
optional equipment availablefor the vehicle,
regardless ofwhether itis actually installed on
the vehicle ornot . All
about wheelsand tires
287Wheels andtires Z

Rim
Thi sist he partof the whe elon whi chthe tire
is mou nted.
GAW R(Gro ssAxleWei ght Ratin g)
The GAW Risthe maxi mum grossaxlew eigh t
rati ng. The actu alloa do nana xlem ustn eve r
excee dthe gros saxlew eigh trati ng. The gros s
axl ew eigh trati ng can befou ndonthe vehi cle
id entif ication plate onthe B-pi llar on the driv-
er's side.
Spe edrating
The speedrati ngispa rtof the tire identif ica-
tion. Itspe cifiesthe speedrang efor whi chthe
tire isap pro ved .
GVW (GrossVehi cleW eight)
The gros svehi cle weigh tincl udes the weigh t
of the vehi cleincluding fuel,tool s,the spare
whe el,a cce ssoriesinsta lled, occu pants, lug-
ga ge and thedrawbarnose weigh t,ifap plica -
bl e. The gros svehi cle weigh tm ustn ot excee d
the gros svehi cle weigh trati ng GVW Rasspeci-
fie do nthe vehi cleidentif ication plate onthe
B-pi llar on the driver' sside.
GVWR (GrossVehi cleW eight Ratin g)
The GVW Risthe maxi mum permis siblegros s
we igh tofa fullyloa ded vehicle(the weigh tof
the vehi cleincluding alla cce ssories,occu -
pa nts, fuel,lu gga geand thedrawbarnose -
we igh t,ifap plica ble). The gros svehi cle weigh t
rati ngisspe cified on the vehi cleidentif ication
pl ate onthe B-pi llar on the driver' sside.
Maxi mum loaded vehicle we ight
The maxi mum weigh tist he sumo f:
R the curb weigh tofthe vehi cle
R the weigh tofthe acce ssories
R the loadlim it
R the weigh tofthe facto ryinsta lled opti onal
equ ipment
Ki lopasc al(kP a)
Metri cunitf or tire pressu re.6.9 kPa corre -
spo nds to1p si.A nother unitfor tire pressu re
is ba r.100 kilopa scals(kPa )are the equivalent
of 1b ar. Lo
ad index
In addition tothe load-be aring index, the load
ind exmay also be imp rinte donthe sidewallo f
the tire.Thiss pecifi esthe load-be aring cap a-
city more precise ly.
Curb weight
The weigh tofa vehi clewith stand ardequip-
ment including the maxi mum capacityof fue l,
oil and coolant. Italso incl udes the air-condi -
tioni ngsystem andoptionalequ ipment ifthes e
are insta lled inthe vehi cle,but doe snot
incl udep asse ngers orlugga ge.
Maxi mum load rating
The maxi mum loadrating isthe maxi mum per-
mis siblewe igh tink ilogra msorlbsf or whi cha
tire isap pro ved .
Maxi mum permis sibl et ire press ure
Ma ximu mpermis sibletire pressu refor one
tire .
Maxi mum load on onet ire
Ma ximu mloado nonetire .Thisi sc alcul ate d
by divid ing the maxi mum axleloa do fone axle
by two.
PSI (pounds persquare inch)
As tand ardunitofm easure for tire pressu re.
As pec tratio
Re lations hipbetw eentireheight and tirewidth
in per cent.
Tire press ure
Thi sisp ressu reinsi dethe tire applying anout-
wa rdforce toeach squ are inch ofthe tire's
su rfa ce. The tirepressu reisspe cified in
pou nds persquare inch (psi) ,ink ilopa scal
(kPa )orinb ar.T he tire pressu resho uldo nly
be corre ctedwhenthe tire sarecold .
Co ldtire press ure
The tiresarecold :
R ifthe vehi clehasb eenp arked with the tires
ou to fdirect sunli ght foratleas tthree hours
and
R ifthe vehi clehasn otbee ndriven further
than 1mile( 1.6 km) 288
Al
la bo ut wh eelsand tiresWhee lsand tires

Tread
The partof the tire thatcome sinto conta ct
wi th the road.
Bead The tirebead ensu resthatthe tire sits
sec urelyo nthe wheel.The reares evera lstee l
wi res inthe bead topre vent thetire from com-
ing loose from thewheelrim .
Si dew all
The partof the tire betwe enthe trea dand the
be ad.
Wei ght ofopti onalextras
The comb inedw eigh to fthos eoptional extra s
tha tweigh mor ethant he rep laced standa rd
pa rts and morethan2 .3kg (5lbs).T he se
op tio nal extra s,su ch ashigh-p erform ance
bra kes, level contro l,ar oofrac ko ra high-p er-
form ance battery ,are not included inthe curb
we ight and theweight ofthe acce ssories.
TIN (Tire Ide ntificatio nNumbe r)
Thi sisa uniqueide nti fierw hich can beused
by atire manuf actu rertoidenti fytire s,for
exa mpl efor ap rodu ct reca ll,a nd thu side nti fy
the purcha sers.The TINisma de up ofthe
ma nuf actu rer'sidenti tycod e,tire size, tire
typ ecodea nd the manuf actu ring date.
Lo ad bearin gind ex
The load bearing index(alsol oa dind ex) isa
cod ethatc onta insthe maximu mloadb earing
cap acityof at ire.
Tracti on
Tra ctio nist he res ulto ffrictio nbetwe en the
tire sand the roadsurface.
Treadw earindic ators
Na rro wb ars( tre ad wearbars) thatare distri b-
ute doverthe tire trea d.Ifthe tire trea dislev el
wi th the bars, the wearlimit of00CD in(1.6 mm)
ha sb eenr eache d.
Oc cupant distrib utio n
The distri butio no foccu pants inav ehiclea t
thei rdesigna ted seating positio ns.
Total load limit
Nom inalloa da nd lugga geload plus 68 kg
(15 0lbs)m ultipl iedb ythe num bero fseats in
the vehicle. Ch
ang ingaw heel Fl
at tire
The "Breakdo wnassista nce" section
(Y page 253 )conta insinfo rma tiona nd note s
on how todealwith aflatt ire .Info rma tiono n
dri ving with MOExte ndedtiresint he eve ntofa
fla ttire can befou ndund er"M OExtend edtire s
(ti res with run-fla tcharacteri stics"
(Y page 254 ). Rotati
ngthe wheels G
WA
RNING
Ro tati ngthe fron tand rea rwheelsi fthe
wh eelsor tire shaved iffe rent dimens ions
ma ysevere lyimp airt he driving characteri s-
tics .The ser viceb rake orwh eelsus pe nsi on
comp onents mayalsob edamaged .The re is
ar isko fana ccident.
Ro tate frontand rea rwheelso nlyi fthe
wh eelsand tiresareofthe same dimen-
si ons.
! On
veh icles equipp ed with atire pre ssu re
moni tor,electro niccomp onents arel oc ate d
in the wheel.
Ti re-m ounting toolsshouldn otbe used nea r
the valve .Thisc ouldda ma gethe electro nic
comp onents.
Onl yhavet iresc hange dataq ualifi ed spe -
cia list wo rksh op.
Alw aysp ayatte ntiontot he instructio nsand
sa fety note swhenc hangi ng aw heel
( Y pa ge 290 ).
The wearpatterns onthe fron tand rea rtire s
di ffe r,de pendi ng on the opera ting cond itions.
Ro tate thewheelsbe fore aclear we arpattern
ha sform edon the tires.Front tirestypica lly
we armor eonthe sho ulde ra nd rea rtire sin
the cente r.
On veh icles tha thavet he same size front and
rea rwheels, yo uc an rota tethe wheelsacco rd-
ing tothe intervalsin the tire manuf actu rer's
wa rranty book inyour veh icled ocum ents. Ifno
wa rranty book isavaila bl e, the tiresshouldb e
rota tedevery3,0 00 to6,0 00 miles(5,000 to
10, 000 km).Dep endingontire wear,thism ay
be req uired earlier. Do not change thedirec-
tio no fwheelrota tion. Ch
ang ingaw heel
289Whe elsa nd tire s Z

Clean
thec ontac tsurf aces ofthew heel and
th eb rak edisc thoro ughly everytim eaw heel
is rot ate d.Chec kthe tirep ressur eand,ifn ec-
ess ary, restartthe tirep ressur eloss warn ing
syst emorthet irep ressur emonito r. Direct
ionofrot ation
Tire swithas pecifiedd irection ofrot atio nhave
addit ionalben efits,e.g .ift he re isar isko f
hydr oplan ing.Thes eadvan tagescan onlybe
gain edifth et ires are install ed correspo nding
to thed irection ofrot atio n.
An arrow onthes idew allofthet irei nd icat es
its correct dire ction ofrot atio n. St
ori ng wheels
St ore wheel sthata re notb ein gu sed inac ool,
dry and preferably dark place.Pro tect thet ires
fr om oil,grease, gaso linea nd diese l. Mou
nting awheel
Pr epa ringthe vehi cle X
Stop thev ehicle onsolid ,non -slipp ery and
leve lground.
X Ap ply thee lectric park ingbrak emanually.
X Bring thef ront wheel sintot he straigh t-
ahead position.
X Sh ift thet rans mis sion toposi tion005D.
X Swit choff thee ngine.
X Veh icles withoutKEYLESS- GO:remove
th eS martKey from thei gn ition lock.
X Veh icles withKEYLESS- GO:open thed riv-
er' sd oor .
The vehicle elec tron ics nowh ave status 0.
This isthes ame astheS martKey having
been removed.
X Veh icles withKEYLESS- GO:remove the
St art /S topb utto nf romt heignition lock
(Y page 118).
X Ifinc luded inthev ehicle equipm ent,rem ove
th et ire- ch ang etoolkitfrom thev ehicle .
X Saf eguar dthe veh icle again stroll ing away.
i Due
todiff ere nces inveh icle equipm ent,
no ta llveh iclesareequipp edwithat ire-
ch ang etoolkit.F or inform ationonw hich to
ols are required toper formaw heel
ch ang eonyour vehicle,con sul tana uth or-
ize dM erced es-Ben zCenter.
Nec essary tire-ch ang ingtools can include,
for example :
R Jack
R Whee lcho ck
R Lug wren ch
Secur ingthev ehi cle toprevent itfrom
rol ling away If
your vehicle isequipp edwithaw heelchoc k,
it can befoun dint he tire-ch ang etoolkit
(Y page 253).
The foldingwheel choc kisa na ddit ionalsafe ty
meas uretopre ven tthe veh icle from rolling
away, forexample whenchang ingawheel .
X Fol db othp lates upward s0043.
X Fol do utlower plate0044.
X Guide thel ugs onthel ower platefully into
th eo pen ingsinb ase plate0087. X
Plac echockso rother suit able items unde r
th ef ront and rear ofthew heel that isdiago-
nall yoppo sitet he wheel youwish to
ch ang e. 290
Cha
nging awheelWh eels andtires

Rais
ingt he vehic le G
WARNI
NG
If yo ud on otpos ition the jack corre ctlyat
the appro priate jacki ngpointofthe vehicle,
the jack couldtip ove rwitht he veh icle
rai sed .The re isar isko finju ry.
Only position the jack atthe appro priate
jacki ngpointofthe vehicle. The base ofthe
jack mustbep ositioned vertically,d irectl y
und erthe jacki ngpointofthe vehicle.
! Only
position the jack atthe appro priate
jacki ngpointofthe vehicle. Othe rwise, you
cou ldda mag ethe veh icle.
Obs erve thefollowi ng when raising thevehi-
cle :
R To raise the vehicle, only uset he veh icle-
spe cificjack that hasb eent este dand
ap pro ved byMer cedes-Be nz.Ifus ed inco r-
rectl y,the jack couldtip ove rwitht he veh i-
cle raised .
R The jack isdes igned only toraise and hold
the vehiclef or as horttime whileaw heel
is bei ng cha nged .Itm ustn ot be used for
per formi ngmai ntenance workund erthe
veh icle.
R Avoi dchanging thewheel onuphilla nd
dow nhillslopes .
R Befo reraising thevehicle, secu reitfrom
rol ling away by applying the parking brake
and inserting wheel chocks .Don otdisen-
ga ge the parking brakewhilet he veh iclei s
rai sed .
R The jack mustbep lace do naf irm,flata nd
non-sl ipsurfa ce. Onaloo se surfa ce, alarge ,
fla t,load -bea ring underlay mus tbeu sed. On
as lipp ery surfa ce, anon-sl ipund erlay mus t
be used, e.g. rubber mats .
R Do not usew oodenb locks orsim ilar obje cts
as ajack underlay.O the rwise, the jack will
not beableto ach ieve its load -bea ring capa-
city duet ot he res tricte dheight.
R Ma kesure that thedistance betweenthe
und ersideo fthe tire sand the ground does
not excee d1.2in(3 cm).
R Neve rplace your hands and feetunder the
rai sed vehicle.
R Do not lieu nder the vehicle.
R Do not startthe engi newhen the vehiclei s
rai sed . R
Do not openorclose ad ooro rthe trunk lid
wh en the vehiclei sr aised .
R Ma kesure that noper sons arepresent in
the vehiclew hent he veh iclei sr aised . X
Usi nglugw rench 0043,l oosent he boltson
the wheel youw isht oc hange byabou to ne
ful lturn. Donot unscrew theboltscom-
pl etel y. The
jacki ngpoints are locate djust behindthe
front wheel hou sing sand just infront ofthe
rea rwheelhou sing s(arrow s).
Vehi cles with AMG equipmen t:the vehicle
ha sc ove rsinsta lled topro tect thevehicle
bod ynext tothe jacki ngpoints onthe outer
sil ls. Cha
ngingaw heel
291Whe elsa nd tires Z

X
Fold cover 0044upwa rds. X
Pos itionjack 0085atjacking point0087. X
Make surethe foot ofthe jack isdir ectly
bene aththe jacking point.
X Tu rn crank 0083clockw iseuntil jack0085sits
compl etelyonjacking point0087.T hebase of
the jack mustlie evenl yonthe grou nd.
X Tu rn crank 0083until thetire israi sed amaxi-
mum of1.2 in(3 cm )from thegrou nd.
Remov ingawheel !
Do
not placewhe elbol tsinsand oron a
dir tysur face .The boltand whe elhub
threa dscou ldother wise be damag edwhe n
yo us crew them in. X
Unscrew theupper most wheelbol tcom-
ple tely .
X Screw alignme ntbol t0043 into thethrea d
instea dofthe whe elbol t.
X Unscrew therema ining wheelbol tsful ly.
X Re move thewhe el.
Moun tinganew whe el G
WARNI
NG
Oil ed orgrea sedwheelbol tsor damag ed
whe elbol ts/hu bthrea dscan causethe
whe elbol tsto come loose. Asaresu lt,you
cou ldlos eaw heelwhi ledri ving. Thereisa
risk ofacci dent.
Neve roilor grea sewhe elbol ts. Inthe event
of damag etot he threa ds,contact aquali-
fie ds pecia list wor kshop immediately .Have
the damag edwhe elbol tsor hub threa ds
rep laced/re newed.Do not continu edriving. G
WARNI
NG
If yo ut igh ten thewhe elbol tsor whe elnuts
whe nthe vehi cleisrai sed ,the jack couldtip
over .The re isar isk ofinjur y.
Only tighten thewhe elbol tsor whe elnuts
whe nthe vehi cleison the grou nd.
Alw aysp ayattenti ontothe instru ctions and
saf ety notes inthe "Chang ingawheel" secti on
(Y page 289 ).
Only usewheelbol tsthat havebeend esigne d
for the whe eland thevehi cle. Forsafety rea-
sons, Merce des-Benz recom mends thatyou
only usewheelbol tswhi chhav ebeen
ap prov edfor Merce des-Benz vehicles andthe
resp ective wheel. 292
Chan
ging aw heelWhee lsand tires

!
To
prevent damage tothe paintwork, hold
the wheel securely againstthe wheel hub
while screwing inthe first wheel bolt. X
Clea nthe wheel andwheel hubcont actsur-
faces.
X Slide thewheel tobe mounted ontothe
alignment boltandpush iton.
X Tighten thewheel boltsuntiltheyarefinger-
tight.
X Unscrew thealignment bolt.
X Tighten thelast wheel boltuntil itis finger-
tight.
X Vehicles
withacollapsible sparewheel:
inflate thecollapsi blespare wheel
(Y page 296).
Only thenlower thevehicle.
Low ering thevehicl e G
WARNING
The wheels couldcome looseifthe wheel
bolts orwheel nutsarenot tightened tothe
prescribed tighteningtorque.Thereisar isk
of an accident.
Ensure thatthewheel boltsorwheel nuts
are tightened tothe prescribed tightening
torque.
If you arenot sure, donot move thevehicle.
Contact aqualified speciali stworkshop and
have thetightening torquechecked immedi-
ately.
! Vehicles
withacollapsible spare
wheel :before lowering thevehicle, inflate
the collapsi blespare wheel withthetire
inflation compressor. Thewheel rimcould
otherwise bedamage d. X
Turn thecrank ofthe jack counter-c lockwise
until thevehicle isonce againstanding
firmly onthe ground.
X Place thejack toone side. X
Tighten thewheel boltsevenly inac ross-
wise pattern inthe sequence indicated(0043
to 0083). Thespecified tightening torqueis
96 lb-ft (130 Nm).
X Turn thejack back toits initial position.
X Stow thejack andtherest ofthe vehicle
tools inthe trunk again.
X Vehicles withAMG equipment: insertthe
cover intotheouter sill.
X Check thetire pressure ofthe newly moun-
ted wheel andadjust itifnecessary.
Observe therecommended tirepressure
(Y page 271).
When youaredriving withthecollapsi ble
spare wheel mounted, thetire pressure loss
warning systemorthe tire pressure monitor
cannot function reliably.Only restart thetire
pressure losswarning systemortire pressure
monitor whenthedefective wheelhasbeen
replaced withanew wheel.
Vehicles withatire pressure controlsys-
tem: allinstalled wheelsmustbeequip ped
with functionin gsensors. Wheel
andtirecombination s
You canaskforinformation regardingpermit-
ted wheel/tire combinations atan authorized
Mercedes-Benz Center.
! For
safety reasons, Mercedes-Benz recom-
mends thatyouonly usetires andwheels
which havebeen approved byMercedes-
Benz specificall yfor your vehicle. Wheel
andtirecombin ations
293Wheels andtires Z

These
tireshave been specially adaptedfor
use with thecont rolsystems, suchasABS
or ESP ®
,a nd are marked asfollows:
R MO =Mercedes- BenzOriginal
R MOE =Mercedes- BenzOriginal Extended
(tires featuring run-flatcharact eristics)
R MO1 =Mercedes- BenzOriginal (onlycer-
tain AMG tires)
Mercedes- BenzOriginal Extended tiresmay
only beused onwheels thathave been spe-
cifically approved byMercedes- Benz.
Only usetires, wheels oraccessories tested
and approved byMercedes- Benz.Certain
charact eristics, e.g.handling, vehiclenoise
emissions orfuel consumpt ion,may other-
wise beadversely affected.Inaddition,
when driving withaload, tiredimension var-
iations couldcause thetires tocome into
cont actwith thebodywork andaxle compo-
nent s.This could result indamage tothe
tires orthe vehicle.
Mercedes- Benzaccepts noliabil ityfor dam-
age resulting fromtheuse oftires, wheels
or accessories otherthanthose testedand
approved.
Infor mation ontires, wheels andapproved
combinat ionscanbeobtained fromany
qualified specialist workshop.
! Retreaded
tiresareneither testednor rec-
ommended byMercedes- Benz,since previ-
ous damage cannotalway sbed etect edon
retreaded tires.Asaresult, Mercedes- Benz
cann otguarantee vehiclesafetyifretreaded
tires aremounted. Donot mount usedtires
if you have noinform ationabout theirprevi-
ous usage.
The recomm endedpressures forvarious oper-
ating condit ionscanbefound:
R on the Tire andLoading Information placard
on the B-pillar onthe driver's side
R in the tire pressure tableonthe fuel filler
flap
Observe thenoteson recomm endedtirepres-
sures under various operating conditions
(Y page 271).
Check tirepressures regularly,andonly when
the tires arecold. Comply withthemainte-
nanc erecomm endations ofthe tire manufac-
turer inthe vehicle document wallet. Notes
onthe vehicle equipment –alway s
equip thevehicle:
R with tires ofthe same sizeonagiven axle
(left andright)
R with thesame typeoftires atag iven time
(summer tires,winter tires,MOEx tended
tires)
Exc eption: itis permissible tomount adif-
ferent typeormake inthe event ofaflat
tire. Observe the"MOExt endedtires(tires
with run-flatcharact eristics)" section
(Y page 254).
Vehicles equipped withMOEx tended tiresare
not equipped withaTIREFIT kitatthe factor y.
It is therefor erecomm endedthatyouaddition-
ally equip yourvehicle withaTIREFIT kitifyou
mount tiresthatdonot feature run-flatcharac-
terist ics,e.g. winter tires.ATIREFIT kitmay be
obtained fromaqualified specialist workshop. Emergency
sparewheel Import
antsafety notes G
WARNIN
G
The wheel ortire size aswell asthe tire type
of the spare wheel oremergenc yspare
wheel andthewheel tobe replaced maydif-
fer. Mountin gane mergenc yspare wheel
may severely impairthedriving charact eris-
tics. There isar isk ofan accident .
To avoid hazardous situations:
R adapt yourdriving styleaccording lyand
drive carefully.
R never mount morethanonespare wheel
or emergenc yspare wheel thatdiffers in
size.
R only useaspare wheel oremergenc y
spare wheel ofad ifferent sizebriefly.
R do not switch ESP®
off.
R have aspare wheel oremergenc yspare
wheel ofad ifferent sizereplaced atthe
nearest qualified specialist workshop.
Observe thatthewheel andtiredimen-
sions aswell asthe tire type must becor-
rect . 294
Emergency
sparewheelWheels andtires