2020 MERCEDES-BENZ SLC ROADSTER technical data

Overview
ofthe engine compart-
ment ....................................................2 45
ASSYST PLUS......................................245
Ca re....... .............. ................................246 Breakdow
nassistanc e....... .............. 252
Where willIf ind...? ..............................252
Flat tire....... .............. ........................... 253
Battery (vehicle)....... ....... .................... 258
Ju mp-starti ng....... ................................261
Tow ingand tow-starti ng....... ...............264
Fuse s....... ....... ....... ..............................266 Whee
lsand tires ...............................268
Importa ntsafe tynotes ........................268
Opera tion............................................268
Winter operation....... ....... .................... 270
Tire press ure....... ................................ 271
Load ingthe vehi cle....... .......................280
All abo utwhe elsand tires ................... 282
Cha nging awheel....... ......................... 289
Whee land tire combi nations .............. .293
Emergency sparewhe el....... ................294 Techn
ical data ................................... 297
Informati onrega rding technical data
....... ............................ .......................... 297
Vehi cleelectronics ..............................297
Identifi cationplates ....... ......................298
Service products andfilling capa ci-
ties ....... ............................................... 299
Vehi cledata ......................................... 305 Co
nten ts
3

Problems
withyour vehicle
If you should experience aproblem withyour
vehicle, particularly onethat youbelieve may
affect itssafe operation, weurge youtocon-
tact anauthorized Mercedes-B enzCenter
immediately tohave theproblem diagnosed
and rectified. Ifthe problem isnot resolved to
your satisfaction ,please discuss theproblem
again withanauthorized Mercedes-B enzCen-
ter or,ifnecessary, contactusatone ofthe
following addresses.
In the USA
Mercedes-B enzUSA, LLC
Customer AssistanceCenter
One Mercedes-B enzDrive
Sandy Springs, GA30328
In Canada
Mercedes-B enzCanada, Inc.
Customer RelationsDepartmen t
98 Vanderhoof Avenue
Toront o,Ontario M4G4C9 Report
ingsafety defects
USA only:
The following textispublished asrequired of
manufacturers underTitle49,Code ofU.S.
Federal Regulations, Part575pursuant tothe
"National TrafficandMotor Vehicle SafetyAct
of 1966".
If you believe thatyour vehicle hasadefect
which couldcause acrash orcould cause
injury ordeath, youshould immediately inform
the National Highway TrafficSafety Adminis-
tration (NHTSA )ina ddition tonotifying
Mercedes-B enzUSA, LLC.
If NHTSA receives similarcomplaints, itmay
open aninvestigation ,and ifit finds thata
safety defect existsinag roup ofvehicles, it
may order arecall andremedy campaign.
However, NHTSAcannotbecome involved in
individual problemsbetweenyou,your dealer,
or Mercedes-B enzUSA, LLC.
To cont actNHTSA ,you may calltheVehicle
Safety Hotline toll-free at
1-88 8-327-4236(TTY: 1-800-424-91 53);got o
htt <0053001D00120012005A005A005A001100560044004900480055004600440055
0011> gov;orw rite to:
Administ rator,NHTSA ,400 Sevent hStreet,
SW., Washington, DC20590 . You
canalso obtain otherinformation about
motor vehicle safetyfrom
htt <0053001D00120012005A005A005A001100560044004900480055004600440055
0011> gov Limited
Warrant y
! Observe
thenotes inthis Operator's Man-
ual regarding thecorrect operation ofyour
vehicle andpossible damagetothe vehicle.
Damage tothe vehicle whichiscaused by
violation ofthese notes isnot covered by
the Mercedes-B enzimplied warranty orthe
new orused-vehicle warranty. QR
code forrescue card
The QRcodes aresecured inthe fuel filler flap
and onthe opposite sideonthe B-pillar. Inthe
event ofan accident, rescueservices canuse
the QRcode toquickly findtheappropriate
rescue cardforyour vehicle. Thecurrent res-
cue card contains themost important informa-
tion about yourvehicle inac ompact form,e.g.
the routing ofthe electric cables.
You canfind more information athttp: //
<005A005A005A0011005000480055004600480047004800560010004500480051
005D[ .de/qr-code. Data
storage Data
storage
Aw iderange ofelectron iccomponen tsinyour
vehicle containdata memories.
These datamemories temporarily orperma-
nent lystore technicalinformation about:
R the vehicle's operating state
R incident s
R malfunction s
In general, thistechn icalinformation docu-
ment sthe state ofac omponen t,am odule, a
system orthe surroundings.
These include, forexample:
R operating conditionsofsystem componen ts.
For example, fluidlevels
R the vehicle's statusmessages andthose of
its individual componen ts,e.g. number of
wheel <0055004800590052004F00580057004C00520051005600120056005300480048
0047000F[ decelerationin
movement ,lateral acceleration, accelerator
pedal position 28
Data
storageIntrodu ction

R
malfu nctions anddefects inimporta ntsys-
tem components, e.g.lights,brakes
R vehicl ereactions andopera tingconditions
in specia ldrivi ng situa tions, e.g.airbag
depl oyme nt,intervention ofstabi litycontrol
systems
R ambi entconditions, e.g.outsid etempera -
ture
This data isof an exclusi velytechnical nature
and canbeused to:
R assi stinrecognizing andrectifyi ngmalfu nc-
tions anddefects
R anal yzevehicl efunctions, e.g.after anacci-
dent
R optimize vehiclefunctions
The data cannot beused totrace thevehicl e's
movements.
When yourvehicl eiss erviced ,technical infor-
mation canberead from theevent datamem-
ory and malfu nction datamemory .
Services include,for exampl e:
R repa irservices
R service processe s
R warra nties
R qua lityassu rance
The vehicl eisr ead outbyemplo yeesofthe
service network (includingthemanufa cturer)
usi ng specia ldiagnostic testers. Moredetailed
informatio niso btai ned from it,ifrequ ired.
After amalfunction hasbeen rectified ,the
informatio nisd eleted from themalfu nction
memory oriscontinual lyoverwri tten.
When operatingthevehicl e,situa tions are
conceivab lein whi chthis technical data,in
connection withother informatio n(ifneces-
sary ,under consulta tionwith anauthorized
expert), couldbetraced toap erson.
Examples include:
R accide ntreports
R dama getothe vehicl e
R witness statements
Further additional functions thathave been
contractuall yagree duponw iththe customer
all ow certain vehicledata tobe conveyed by
the vehicl easw ell. The additional functions
includ e,for exampl e,vehicl elocati onincase
of an emergency . COMA
ND/Me rcedesmeconne ct
(Can ada: TELE AID)
If the vehicl eise quippe dwithCOMAND or
Mercede smeconnect, additional dataabout
the vehicl e'sopera tion,theuse ofthe vehicl e
in certain situations, andthelocatio nofthe
vehicl eisc ompil edthrough COMAND orthe
Mercede smeconnect system.
For additional informatio n,plea serefer tothe
COMAND UserManua lorD igital Opera tor's
Manua land/or theMercede smeconnect
Terms andCondi tions. Eve
ntdata recorders
USA only:
This vehicl eise quippe dwithanevent data
recorder (EDR).Thisvehicl eise quippe dwith
an event datarecorder (EDR).Themain pur-
pose ofan EDR isto record, incertain crashor
near crash-li kesitua tions, suchasan air bag
depl oyme ntor hitting aroad obstacl e,data
that willassi stinundersta ndinghowavehi-
cle's systems performed .The EDR isdesi gned
to record datarelated tovehicl edyna mics and
safety systems forashort perio doftime, typi-
call y30seconds orless.
The EDR inthis vehicl eisd esigned torecord
such dataas:
R How varioussystems inyou rvehicl ewere
opera ting
R Whether ornot thedriver andpass enger
safety beltswerebuckle d/fastened
R How far(ifat all)the driver wasdepre ssing
the accele ratorand/or brakepedal;and,
R How fastthevehicl ewastraveli ng
These datacanhelp provid eabetter under-
standing ofthe circumstances inwhich
crashes andinjurie soccur. NOTE: EDRdata
are recorded byyou rvehicl eonly ifan on-triv-
ial crash situationoccurs; nodata arerecor-
ded bythe EDR under normal drivingcondi-
tions andnopersona ldata (e.g. name, gender,
age and crash location)are recorded .How-
ever, other parties,such aslaw enforcement
could combine theEDR data withthetype of
persona llyidentify ingdata routinel yacqu ired
duri ngacrash investiga tion.
Access tothe vehicl eand/or theEDR isnee-
ded toread datathatisrecorded byan EDR,
and specia lequ ipment isrequ ired. Inadd ition Data
storage
29Introductio n Z

function
forthe vehicl eoccupa ntsinthe event
of ac rash. G
WARNING
Emergency TensioningDevices thathave
depl oyedpyro technical lyare nolonge r
opera tional andareunab leto perform their
intended protective function.Thispose san
increas edrisk ofinjury oreven fatalinjury .
Have pyrotechnical lytrigger edEmergency
Tensio ningDevices replaced immed iatelyat
aq ualified speci alist worksho p.
An electric motor isuse dbyPRE-SAFE ®
to
trigger thetightening ofthe seatbelti nh az-
ardo ussitua tions. Thisproced ureisreversi ble.
If Emergency TensioningDevices aretrigger ed
or air bag saredepl oyed,you willhearab ang,
and some powdermay alsob erele ase d.The
0075 restrai ntsystem warning lamplights up.
Only inrare cases willthe bang affect your
hea ring. Thepowderthat isrele asedgenera lly
does notconstitute ahealth haza rd,but itmay
caus eshort-term breathing difficulti esinpeo-
ple with asthma orother respiratory problems.
Provid editis safe todo so, you shou ldlea ve
the vehicl eimmed iatelyor open thewind owin
order toprevent breathing difficulti es.
Air bag sand pyro technic Emergency Tension-
ing Devices (ETDs)contain perchloratemate-
rial ,which may requirespeci alhandl ingand
rega rdfor the environment. Nationalguide-
lines must beobse rved duringdisp osal.InC al-
ifornia ,see ww w.dtsc.c a.gov/
HazardousWaste/ Perchlorate/i ndex.cfm.
Method ofoperatio n During
thefirst stage ofac ollision, the
restrai ntsystem controlunitevaluates impo r-
tant physical datarelating tovehicl edecel era-
tion oraccele ration, suchas:
R dura tion
R dire ction
R intensity
Based onthe eval uation ofthis data ,the
restrai ntsystem controlunittrigger sthe Emer-
gency TensioningDevices duringahead-on or
rear-end collision. An
Emergency TensioningDevice canonly be
trigger ed,if:
R the igniti onisswi tched on
R the components ofthe restrai ntsystem are
opera tional.You can find further informa tion
under "Restrai ntsystem warning lamp"
(Y pag e39)
R the seatbeltb uckle tongue hasengag edin
the beltbuckle ofthe respe ctiveseat
If the restrai ntsyste mcontrol unitdetects a
more severe accident,further components of
the restrai ntsyste mareactiva tedindep end-
ently ofeach other incertain frontalcollision
situa tions:
R Front airbag sasw ella sd rive r'sand front-
pas senger kneebags
Dependi ngon the perso nint he front-
pas senger seat,the front-passe ngerfront air
bag iseither enabledordisa bled.The front-
pas senger frontairbag canbedepl oyedina n
accid entonly ifthe PASSENGER AIRBAG OFF
indica torlam piso ff.Obser vethe informa tion
on the PASSENGER AIRBAG indica torlam ps
(Y pag e39).
You rvehicl ehastwo-stage frontairbag s.
The activa tionthreshol dofthe Emergency
Tensio ningDevices andtheairbag sisd eter-
mined byeval uating therate ofvehicl edecel -
erati onoraccele rationwhichoccurs atvari ous
poi nts inthe vehicl e.This process ispre-emp -
tive innature. Deployment shouldtake place
in good timeatthe start ofthe colli sion.
The rate ofvehicl edecel erati onoraccele ra-
tion andthedirection ofthe force areessen-
tial lydetermi nedby:
R the distri butionofforces duringthe colli sion
R the colli sion angle
R the deforma tionchara cteristics ofthe vehi-
cle
R the chara cteristics ofthe object withwhich
the vehicl ehascolli ded
Factors whichcan only beseen andmeas ured
after acollision hasoccurred donot playa
decis iverole inthe depl oyme ntofan air bag .
Nor dothey provi deanindica tionofair bag
depl oyme nt.
The vehicl ecan be deforme dconside rably,
witho utan air bag being depl oyed.This isthe
case ifonly parts whichare relatively easily
deforme dareaffected andtherate ofdecel er-
ation isnot high .Convers ely,airbag smaybe
depl oyedeven though thevehicl esuffe rsonly Oc
cupant safety
51Safety Z

Infor
mation reg ardin gtech nica ldata
i The
datastate dh eres pec ifically refers to
av ehiclew iths tand ard equipm ent.Con sult
an auth orizedM erce des- BenzCenterf or the
dat afor all veh iclev arian tsand trim levels. Veh
icle elect ronics Ta
mp ering with thee ngin eelect ron-
ics
! Hav
ethe engin ee lectron ics and asso ci-
ate dparts,suc hascontro lunit s,sen sors,
act uati ngcompo nentso relec tric cab les
ser viced onlyat aq ualif iedspec ialist work-
sho p.Veh iclec om ponentsm ayother wise
wear morequickly and thev ehicle's oper at-
ing permit may beinvalidat ed. Inst
alling two- way radio sand mob ile
ph ones (RFtrans mitters ) G
WAR
NING
The electromag neticr adi ation from two-way
radi oscan interf ere withthe veh iclee lec-
tr on ics iftwo -way radiosare man ipulat edor
ret rofitte di ncorr ectly. This could jeopar dize
th eo per ating safetyo fthe veh icle. Ther eis
ar isko fana cciden t.
You should haveallwor kone lectrical and
elec tron icco mpo nentsc arried outata
qualif iedspec ialist workshop. G
WAR
NING
If you incorrectlyo per ate two-way radiosin
th ev ehicle, thee lectromag neticr adi ation
may interf ere withthe veh iclee lectron ics ,
for exampl eif:
R thet wo -way radioisn otconn ectedt oa n
ex terio ra nten na
R thee xter iora nten na isno tc orrectly
moun tedo risn otlow- reflec tion
This could jeopar dizethe oper ating safetyo f
th ev ehicle. Ther eisar isko fana cciden t. Hav
ethe low- reflec tion exterio ra nten na
ins talled ataq ualif iedspec ialist workshop.
Alw ays conn ecttwo -way radiostothel ow-
ref lec tion exterio ra nten na when operating
in thev ehicle.
! The
oper ating per mit may beinvalidat edif
th ei nstruct ionsfor ins tallation and useof
two -way radiosare noto bserv ed.
In part icular,thef ollowin grequire men ts
must becompli edwith:
R on lyappr ovedwaveban dsmay beused
R obs ervethe max imum permis sible output
in these wave bands
R on lyappr ovedanten na pos ition sm aybe
used
Ex ce ssiv elevels ofelec tromag neticr adi ation
may causedamag etoy our healt hand the
healt hofothers. Usi nganexterio ra nten na
tak esintoa ccoun tcurren tscien tific disc us-
sion srelati ng tothep ossible healthhazards
th at may result from elec tromag neticf ields.
The followin ganten na pos ition sm aybe used if
RF trans mitters hav ebeen properlyins talled: Ap
pro ved antenna pos ition s
0043 Rear fender s
i On
ther ear fender s,itis rec omm ended to
ins tallthe ant enna on thes ide ofthev ehicle
clo ses ttot he center ofther oad .
Use theT echn ical Specific ation ISO/ TS 21609
when retrofitting RF trans mitters (Road Vehi-
cle s-E MCguide lines for installation ofaft er-
mar ketradi ofrequen cytrans mitting equip-
men t).O bserv ethe legal require men tsfor
acc essory part s.
If your vehicleh asinstallation sfor two -way
radi oequipm ent,use thep ower supplyor
ant enna conn ection sinten ded foruse withthe Veh
icle electr onics
297Technical data Z

basic
wiring. Besure toobserve themanufac -
turer' sSupplemen twhen installing.
Deviat ionswith respect tofrequen cybands,
maximum transmission outputsoranten na
position smust beapproved byMercedes -
Ben z.
The maximum transmission output(PEAK)at
the base ofthe anten namust notexceed the
following values: Frequ
encyband Maxim
um
tr ansm ission
outp ut Shor
twave
3-5 4MHz 100
W 4mw
aveband
74 -88M Hz 30
W 2mw
aveband
144 -174 MHz 50
W Trunk
edradio system/
Tetra
380 -460 MHz 10
W 70
cm waveband
400 -460 MHz 35
W Mobile
communications
(2G/3G/ 4G) 10
W The
following canbeused inthe vehicle with-
out restrictions:
R RF tran smitt erswith amaximum transmis-
sion output ofup to100 mW
R RF tran smitt erswith transmitt erfrequen cies
in the 380 -410 MHz waveband andamaxi-
mum transmission outputofup to2W
(trun kedradio/Tet ra)
R Mobile phones (2G/3G/ 4G)
There isno rest riction foranten naposition son
the outside ofthe vehicle forthe following fre-
quency bands:
R Trunk edradio system/ Tetra
R 70 cm waveband
R 2G/3G/ 4G Identificat
ionplat es Vehicle
identification platewith
vehicle identification number(VIN) X
Open thedriver' sdoor.
You willsee vehicle identification plate0043. Ex
ample: vehicle identification plate(USA only)
0043 VIN
0044 Vehicle model Ex
ample: vehicle identification plate(Canada
only)
0043 VIN
0044 Paint code
i The
data shown onthe vehicle identifica-
tion plate isused onlyasan example. This 298
Identificat
ionplat esTechnical data

data
isdifferen tfor every vehicle andcan
deviate fromthedata shown here.Youcan
find thedata applicable toyour vehicle on
the vehicle identification plate. Vehicle
identification number(VIN) X
Slide thefron t-passenger seatasfar forward
as possible.
X Fold trim0043upwards.
VIN 0044can beseen.
The VINcanalso befound inthe following
location s:
R on the vehicle identification plate
(Y page 298)
R on the lower edgeofthe windshield
(Y page 299) Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal and
Californian emissionsstan dards
0044 Engine number (stamped intot he cran k-
case)
0087 VIN (onthe lower edgeofthe windshield) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smaybe poisonous andhaz-
ardous tohealth. Thereisar isk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct sonthe
labels ofthe respect iveoriginal container s.
Always storeservic eproduct ssealed intheir
original container s.Always keepservic e
product soutofthe reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sina ne nvir on-
ment allyrespon siblemann er.
Serv iceproduct sinclude thefollowing:
R Fuels
R Lubrican ts(e.g. engin eoil,tran smission oil)
R Coolant
R Brak efluid
R Windshield washerfluid
R Climate control system refrigerant
Comply withallvalid regulation swithrespect
to handling, storing, and disposing ofservic e
fluids.
Componen tsand servic eproduct smust
matc h.You should therefore onlyuseproduct s
that have been testedand approved by
Mercedes -Benz.
Inf ormat ionabout testedand approved prod-
ucts canbeobtained fromanauthoriz ed
Mercedes -BenzCenter oron the Internet at
htt p:// bevo.m ercedes- benz.com.
You canident ifyserv iceproduc tsapprove dby
Merc edes- Benzbythe followin ginsc riptions
on the contain er:
R MB- Freigabe (e.g.MB-Freigabe 229.51)
R MB- Appr oval(e.g. MB-Appr oval229.51)
Oth erdesign ationsorrec omme ndations indi-
cat eal evel ofquality oras pecif ication in
acco rdanc ewithanMB Shee tNumber (e.g.
MB 229 .51). They have notnecessarily been
approve dbyM ercedes- Benz. Serv
iceproduct sand filling capacities
299Technical data Z