2019 MERCEDES-BENZ SLC ROADSTER load capacity

GVW
(GrossVeh icle Weigh t)(def -
ini tio n).... .......................................2 87
GVW R(G ross VehicleWei ght
Ra ting) (definitio n)....... .................. 287
Importa ntsafe tynotes .................. 267
Increase dvehi cleweight due to
optio nalequ ipme nt(de finitio n)...... 286
Informati onondrivi ng....... ............. 267
Kil opa scal (kPa)(de finitio n)....... .... 287
Lab eling (ove rview )<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011[ 283
Loa dbe ari ng index(defi niti on) ...... 288
Loa dind ex<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 285
Loa dind ex(defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
001100110011[ 287
M+S tires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 269
Ma ximu mload on atire (defi ni-
tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 287
Ma ximu mload ed veh iclewe ight
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 287
Ma ximu mpermi ssible tire pres-
su re (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011[ 287
Ma ximu mtire load <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011[ 285
Ma ximu mtire load (defi niti on) ....... 287
MOExte ndedtires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 269
Opti onaleq uipme ntwe ight (defi -
niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 288
Ove rview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 267
PSI (pou nds persqu are inch )
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 287
Re placi ng <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 288
Servi celife <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 268
Sid ewall(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011[ 288
Spe edrati ng(defi niti on) ................ 287
Stori ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 289
Structu reand characte ristics
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 286
Sum mer tires<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 269
Tem peratu re<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 282
TIN (Tire Identifi cationNumbe r)
(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 288
Ti re bead (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011[ 288
Ti re pre ssu re(defi niti on) ................ 287
Ti re pre ssu res (recomme nded)...... 286
Ti re size (data )<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 292
Ti re size desig nati on,load -bea r-
ing capacity, spe edrati ng.............. 283
Ti re trea d<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 268
Ti re trea d(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011[ 288
Tota llo ad limit (defi niti on) ............. 288 Tra
ctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 282
Tra ctio n(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011[ 288
Tre adwear<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 282
Unif orm Tire Qua lity Gra ding
Stand ards<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 281
Unif orm Tire Qua lity Gra ding
Stand ards(d efi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 286
Wea rind icator (defi niti on) ............. 288
Whe eland tirecomb ination ........... 292
Whe elrim (defi niti on) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 287
see Flattire
Tow -starti ng
Emerg encyenginestarting ............ 265
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 263
Tow ing
Per mitte dtow ingmeth ods............ 264
Tow ingawa y
Imp orta ntsafety guideline s........... 263
Insta lling the towingeye................ 263
Re movi ngthe towingeye............... 264
Tra nspo rting thevehicle................ 265
Wi th both axles on the ground ....... 264
Wi th the rearaxl erai sed ................ 264
Traffi crepo rts
see also Digi talOpe rator'sMan-
ua l<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011[ 217
Trans mission
Ove rview oftrans mission pos i-
tions <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 125
Sel ector lever <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 125
see Auto matictrans mission
Trans mission pos ition display ......... 125
Trans portingthe vehic le<0011001100110011001100110011001100110011001100110011001100110011
00110011[ 265
Trip computer (on-b oard com-
puter) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011[ 170
Trip odomete r
Ca lling up<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 170
Re setti ng(on-boa rdcomp uter)...... 171
Trunk
Emerg encyrelease <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 74
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 73
Locki ngsep arately<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011[ 74
Ope ning/ closing (manually from
ou tsid e)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 74
Ove rview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 73
Trunk lid
Disp laymes sage <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 204
Ope ning dimens ions <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011[ 303 In
dex
19

teri
stics, e.g.wi nter tires.ATIR EFIT kitmaybe
ob tained fromaqu alifi ed speci alistwo rksh op.
Info rma tionon cha nging and mou nting wheels
(Y page 288 ).
X Stop thevehicleon solid,non-s lipp ery and
le vel ground ,as faraw ay aspossi ble fro m
tra ffic.
X Swi tch onthe hazar dwa rning lamps .
X Secu rethe vehicleag ainst rolling away
(Y page 134 ).
X Ifpo ssi ble, bri ng the frontwh eelsinto the
stra ight-a head positio n.
X Swi tch offthe engine.
X Veh icle swi tho utKEYLES S-G O:rem ove
the Sma rtKeyfro mthe igniti onlock.
X Veh icle swi th KEYLES S-G O:open the driv-
er' sdo or.
The vehicleelectro nicsarenow inpo sitio n
005A. Thisis the same asthe Sma rtKeyha vin g
be en rem oved.
X Veh icle swi th KEYLES S-G O:rem ove the
Star t/Stop button fromthe igniti onlock
(Y page 118 ).
X Ma kesure tha tthe passe nge rsarenot
end angeredas the ydo so. Makesure tha t
no one isnea rthe dange rar ea while a
wh eelis be ing change d.Anyo newhois not
di rectl yas sisti ng inthe wheelcha nge
sho uld, for exa mpl e,sta nd behind the bar-
rie r.
X Ge tou tof the vehicle. Pa yatte ntionto tra f-
fic cond itions when doing so.
X Close thedriver 'sdo or. MOE
xtende dtire s(ti res with run-f lat
prope rties)
Ge neral notes Wi
th MOExte ndedtire s(ti res with runfla t
cha racteri stics) ,yo ucan conti nuetodrive your
veh icleeve nif the reisatota llo ss ofpre ssu re
in one ormor etire s.The affecte dtire mustnot
sho wany clearly vis ible da ma ge.
Yo ucan reco gnizean MOExte ndedtire bythe
MOExte ndedma rking which appe arson the
si de wa llof the tire.Yo uwi llfin dthi sma rking
next tothe tire size designa tion,the load -be ar-
ing capacityand thespee dind ex
(Y page 283 ). MOExte
ndedtire sma yonl ybe used incon-
junc tionwi th an acti vetire pressu reloss wa rn-
ing syste mor with an acti vetire pressu remon-
ito r.
If apres sure loss wa rning mes sage
appe arsinthe multi function displa y:
R ob serve the instructio nsinthe disp laymes -
sa ge s(Y page 201 )
R che ckthe tire fordama ge
R ifdri vin gon, observe the followi ng note s
Th edri vin gdista nce possi ble in run-fl atmod e
is ap pro xim ately50 miles(80 kilome ters)
wh en the vehicleis pa rtia lly la de nand appro x-
im ate ly19 miles(30 kilome ters)wh en the
veh icleis fully la de n.
In additio nto the vehicleload ,the drivin gdis-
tance possi ble de pends upon:
R Veh iclesp ee d
R Ro ad cond ition
R Ou tside temp erature
Th edri vin gdista nce possi ble in run-fl atmod e
ma ybe red uce dby extre medrivin gcond itions
or ma neu vers,or itcan beincr easedthro ugha
mod eratesty leof dri vin g.
Th edri vin gdista nce possi ble in run-fl atmod e
is cou nted fromthe mom entthetire pressu re
lo ss wa rning appe arsin the multifu nctio ndis-
pl ay .
Yo umu stnot exce edama xim um design
sp ee dof 50 mph (80km/h ).
Wh enrep lacing oneoralltire s,plea se observe
the followi ng speci ficati ons foryour veh icle's
tire s:
R Size
R Type and
R Th e"M OExte nded"ma rk
If atire hasgo ne flatand cann otbe rep laced
wi th an MOExte ndedtire ,a sta nda rdtire may
be used asatemp orarymea sure. Makesure
tha tyo uus ethe propersi ze and type(sum mer
or winter tire).
Veh icles equipp ed with MOExte ndedtire sar e
not equipp ed with aTIR EFIT kitatthe factory .
It is the refore recomm endedtha tyo uad ditio n-
al ly eq uip yo ur veh iclewi th aTIR EFIT kitifyo u
mou nttire stha tdo not featureru n-fl atcha rac-
teri stics, e.g.wi nter tires.ATIR EFIT kitcan be
ob tained fromaqu alifi ed speci alistwo rksh op,
for exa mpl e. Fl
at tire
253Break downass istanc e

Tire
labelin g
Ov erv iew 0043
UniformTire Qu ality Grad ing Stand ard
(Y page 286 )
0044 DOT, Tire Ide ntifi cationNumbe r
(Y page 285)
0087 Maxim um tire load (Ypage 285 )
0085 Maxim um tire pressu re(Y page 273 )
0083 Manuf actu rer
0084 Tire ma teri al(Y page 286 )
006B Tire size designa tion,load -be aring capacity
and spee dra ting (Ypage 283 )
006C Loadind ex(Y page 285 )
006D Tire nam e
The markin gsdescri bedab ove areon the tire
in ad ditio nto the tire nam e(sales designa tion)
and themanuf actu rer'snam e.
i Ti
re data isveh icle-s pecificand mayde vi-
ate fromthe data inthe exampl e.
Tire size des ignati on,lo ad-b earing
ca pac ityand speedratin g G
WA
RNING
Excee ding the stated tire load -be aring capa-
city and theappro ved maxim um spee d
cou ldlead totire dama georthe tire burst-
ing .The reisaris kof acc ident.
The refore ,onl yus etire typesand sizes
ap pro ved foryour veh iclemod el.Ob ser ve the
tire load rating andspee dra ting
req uired foryour veh icle. 0043
Tire width
0044 Nom inalas pe ct ratio in%
0087 Tire cod e
0085 Rim diam ete r
0083 Loadbe aring index
0084 Spe edrating
Ge neral: dependi ng on the manuf actu rer's
sta nda rds,the size imp rinted inthe tire wall
ma ynot conta inany letters orma yconta in
one letter thatpre ced esthe size descri ption.
If the reisno letter preced ingthe size descri p-
tio n(a ssho wnabove ):the searepa sse nge r
veh icletire sacc ording toEur opeanma nuf ac-
tur ing standa rds.
If "P "pre ced esthe size descri ption: theseare
pa sse nge rveh icletire sacc ording toU.S. man-
uf actu ringsta nda rds.
If "L T" pre ced esthe size descri ption: theseare
li ght truck tire sacc ording toU.S. manuf actu r-
ing standa rds.
If "T "pre ced esthe size descri ption: comp act
eme rgency wheelswith high tire pressu retha t
ar eonl yde signe dfor temp oraryusein an
eme rgency .
Tire width: tirewidth 0043sho wsthe nomi nal
tire width inmil limete rs.
He ight-w idth ratio :as pe ct ratio 0044 isthe size
ra tio betwe enthe tire height and tirewidth
and issho wninpe rcen t.The aspe ct ratio is
cal cul ate dby divid ing the tire width bythe tire
he ight.
Tire code: tire code0087 speci fiesthe tire type.
"R "rep resents radial tire s;"D" represents
di ag ona ltire s;"B" represents diag ona lra dial
tire s. Al
labo utwhee lsan dtire s
283Whe elsand tires Z

Optionally
,tires withamaximum speedofover
149 mph (240km/h )may have "ZR"in the
size description, dependingonthe manufac-
turer (e.g.245/4 0ZR 18).
Rim diameter: rimdiameter 0085isthe diame-
ter ofthe bead seat,notthediameter ofthe
rim flange. Therimdiameter isspecified in
inches (in).
Load-bearing index:load-bea ringindex 0083is
a numerical codethatspecifies themaximum
load-bea ringcapacity ofatire.
Do not overload thetires byexceeding the
specified loadlimit. Themaximum permissible
load canbefound onthe vehicle's Tireand
Loading Information placardonthe B-pillar on
the driver's side(Ypage 279).
Example:
Load-bearing index91indicates amaximum
load of1,356 lb(61 5kg) that thetires can
bear. Forfurther information onthe maximum
tire load inkilograms andlbs,see
(Y page 285).
For further information onthe load bearing
index, see"Load index" (Ypage 285).
Speed rating: speedrating0084specifies the
approved maximum speedofthe tire.
i Tire
data isvehicle-specific andmay devi-
ate from thedata inthe example.
Rega rdless ofthe speed rating, alwaysobserve
the speed limits. Drivecarefully andadap t
your driving styletothe traffic conditions. Summer
tires Index Speed
rating Q up
to100 mph (160 km/h) R up
to106 mph (170 km/h) S up
to112 mph (180 km/h) T up
to118 mph (190 km/h) H up
to130 mph (210 km/h) V up
to149 mph (240 km/h) W up
to168 mph (270 km/h) Y up
to186 mph (300 km/h) ZR...Y up
to186 mph (300 km/h) Summer
tires Index Speed
rating ZR...(..Y) over
186mph (300km/h ) ZR over
149mph (240km/h ) R
Optionally ,tires withamaximum speedof
over 149mph (240 km/h) mayhave "ZR"in
the size description, dependingonthe man-
ufacturer (e.g.245/4 0ZR18 ).
The service specification ismade upofload-
bearing index0083and speed rating0084.
R Ifthe size description ofyour tireincludes
"ZR "and there arenoservice specifications,
ask thetire manufacturer inorder tofind
out themaximum speed.
If aservice specification isavail able, the
maximum speedislimited according tothe
speed ratinginthe service specification.
Example: 245/40ZR18 97Y.Inthis exam-
ple, "97Y"isthe service specifica tion.The
letter "Y"represents thespeed rating. The
maximum speedofthe tire islimi ted to
186 mph (300 km/h).
R The size descriptio nfor alltires withmaxi-
mum speed sof over 186mph (300 km/h)
must include "ZR",and theservice specifi-
cation mustbegiven inparentheses .Exam-
ple: 275/40 ZR18 (99 Y).Speed rating"(Y)"
indicates thatthemaximum speedofthe
tire isover 186mph (300 km/h). Askthe
tire manufacture rabou tthe maximum
speed . All
-
weather
tires
and win-
ter tires Index Speed
rating Q
M+S 1 up
to100 mph (160 km/h) T
M+S 1 up
to118 mph (190 km/h) H
M+S 1 up
to130 mph (210 km/h) V
M+S 1 up
to149 mph (240 km/h) 1
Or M+S 004D forwinter tires. 284
Al
labout wheelsand tiresWheel sand tires

Rim
Thi sis the partof the whe elon whi chthe tire
is mou nted.
GAW R(Gro ssAxleWei ght Ratin g)
The GAW Ris the maxi mum grossaxl ewe igh t
rati ng. The actu alloa don anaxlemus tneve r
excee dthe gros saxl ewe igh trati ng. The gros s
axl ewe igh trati ngcan 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 cle Wei ght)
The gros svehi cleweigh tincl udes the weigh t
of the vehi cleincluding fuel,tool s,the spare
whe el,acce ssoriesinsta lled, occu pants, lug-
ga ge and thedrawbarnose weigh t,ifap plica -
bl e. The gros svehi cleweigh tmus tnot excee d
the gros svehi cleweigh trati ngGVW Ras spe ci-
fie don the vehi cleidentif ication plate onthe
B-pi llar on the driver' ssid e.
GVWR (GrossVehi cle Wei ght Ratin g)
The GVW Ris the maxi mum permis siblegros s
we igh tof aful lyloa ded vehicle(the weigh tof
the vehi cleincluding allacce ssories,occu -
pa nts, fuel,lu gga geand thedrawbarnose -
we igh t,ifap plica ble). The gros svehi cleweigh t
rati ngisspe cified on the vehi cleidentif ication
pl ate onthe B-pi llar on the driver' ssid e.
Maxi mum loaded vehicle we ight
The maxi mum weigh tis the sum of:
R the curb weigh tof the vehi cle
R the weigh tof the acce ssories
R the loadlimit
R the weigh tof the facto ryinsta lled opti onal
equ ipment
Ki lopasc al(kP a)
Metri cuni tfor tire pressu re.6.9 kPa corre -
spo nds to1psi .Another unitfor tire pressu re
is ba r.100 kilopa scals(kPa )are the equivalent
of 1ba r. Lo
ad index
In addition tothe load-be aring index, the load
ind exmay also be imp rinte don the sidewallof
the tire.Thi sspe cifiesthe load-be aring cap a-
city more precise ly.
Curb weight
The weigh tof avehi 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,bu tdoe snot
incl udepa sse ngers orlugga ge.
Maxi mum load rating
The maxi mum loadrati ngisthe maxi mum per-
mis siblewe igh tin kilogra msorlbsfor whi cha
tire isap pro ved .
Maxi mum permis sibl etire press ure
Ma ximu mper mis sibletire pressu refor one
tire .
Maxi mum load on onetire
Ma ximu mloa don one tire.Thi sis cal cul ate d
by divid ing the maxi mum axleloa dof one axle
by two.
PSI (pounds persquare inch)
A stand ardunitof mea sure for tire pressu re.
As pec tratio
Re lations hipbetw eentireheight and tirewidth
in per cent.
Tire press ure
Thi sis pre ssu 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) ,in kilopa scal
(kPa )or inba r.The tirepressu resho uld only
be corre ctedwhenthe tiresare cold .
Co ldtire press ure
The tiresare cold :
R ifthe vehi clehasbee npa rked with the tires
ou tof direct sunli ght foratleas tthree hours
and
R ifthe vehi clehasnot beendri ven further
than 1mil e(1.6 km) Al
labo utwh eelsand tires
287Wheelsand tires Z