2020 MERCEDES-BENZ SLC ROADSTER battery

R
Make surethatthepositive terminal ofac onn ected battery doesnotcome intocontactwith
vehicle parts.
R Never placemetal object sortools onabattery.
R Itis important thatyouobserve thedescribed orderofthe battery terminals whenconnect-
ing and disconnec tingabattery.
R When jump-st arting,makesurethatthebattery poleswithidentical polarityareconn ected.
R Itis particularly importanttoobserve thedescribed orderwhenconnecting anddisconnec t-
ing the jumper cables.
R Never connectordisconnec tthe battery terminals whiletheengine isrunning. G
WARNING
Ad ischarged batterycanfreeze attemperatures belowfreezing point.Whenjump-st artingthe
vehicle orcharging thebattery, gasescanescape fromthebattery. Thereisar isk ofan explo-
sion.
Allow thefrozen battery tothaw outbefore charging itor jump-st arting.
! Avoid
repeated andlengthy startingattempt s.Otherwise, thecatalytic convertercould be
damaged bythe non- combusted fuel.
If the indicator/warnin glamps donot light upatlow temperatures, itis very likely thatthedis-
charged batteryhasfrozen .Int his case, youmay neither chargethebattery norjump-st artthe
vehicle. Theservice lifeofat hawed-out batterymaybeshorter. Thestartin gcharacterist icscan
be impaired, particularly atlow temperatures. Havethethawed-out batterycheckedataq uali-
fied specialist workshop.
Do not start thevehicle usingarapid charging device.Ifyour vehicle's batteryisdischarged, the
engine canbejump-st artedfromanother vehicleorfrom adonor battery usingjumper cables.
Observe thefollowing points:
R The battery isnot accessible inall vehicles. Ifthe other vehicle's batteryisnot accessible,
jump-st artthe vehicle usingadonor battery orajump-st artingdevice.
R You may onlyjump-st artthe vehicle whentheengine andexhaust systemarecold.
R Do not start theengine ifthe battery isfrozen .Let the battery thawfirst.
R Only jump-st artfrom batteries witha12V voltage rating.
R Only usejumper cableswhichhaveasufficient cross-sectionandinsulated terminalclamps.
R Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected
for afew minutes beforeattempt ingtostart. Thischarges thebattery slightly.
R Make surethatthetwo vehicles donot touch.
Make surethat:
R The jumper cablesarenot damaged.
R Bare parts ofthe terminal clampdonot come intocontactwith other metal partswhile the
jumper cablesareconn ected tothe battery.
R The jumper cablescannot comeintocontactwith parts which canmove whentheengine is
running, suchasthe V-belt pulleyorthe fan.
X Secure thevehicle byapply ingthe electric parking brake.
X Shift thetransmission toposition 005D.
X Make surethattheignition isswitched off.Allindicator lampsinthe instrumen tcluster must
be off. When usingtheSmartK ey,turn theSmartK eytoposition 0092inthe ignition lockand
remove it(Y page 118). 262
Jump
-startingBr eakdown assistance

X
Swi tch offalle lectri cal consu mers,e.g. rea rwindow defroste r,lighti ng,etc.
X Ope nthe hoo d. Pos
ition numb er0084 identif iest he cha rgedbattery ofthe othe rvehicleo rane quiva lent jump -
star ting device.
X Sli de cove r0043 ofpos itive termi nal0044inthe directi onofthe arrow .
X Co nnect positive termi nal0044onyour veh iclet op ositive termi nal0087ofdono rbattery 0084using
the jump ercab le,a lway sb egin with pos itive termi nal0044onyour ow nv ehiclef irst.
X Start theengi neofthe dono rvehiclea nd run itat idling spe ed.
X Co nnect negativetermi nal0085ofdono rbattery 0084togro und point0083 ofyour veh icleu sing the
jump ercab le,b eginni ngwith dono rbattery 0084first.
X Start theengi ne.
X Befo redisconne ctingthejump ercab les, lett he engi nerun forseve ralminu tes.
X Firs t,remo vethe jump ercab lesf rom ground point0083 and nega tivetermi nal0085,t henfrom
pos itive termi nal0044and positive termi nal0087.B egine acht ime atthe contac tson your ow n
veh iclef irst.
X Close cove r0043 ofpos itive termi nal0044afte rremo ving thejump ercab les.
X Have thebattery checke dataq ualifi ed spe cialist wo rksho p.
Ju mp-sta rtingisnot consi deredtobe anorma lope rati ngcondi tion.
i Ju
mpe rcablesa nd further informa tion regard ing jump -startingcanbeobta ineda tany quali-
fie ds pecia list wo rksho p. Jump-startin
g
263Breakdo wnassistanc e Z

Tow
inga nd tow -starti ng Impo
rtant safety notes G
WA
RNING
Wh entow ingortow -sta rtinganothe rvehicle
and itsweight isgre atertha nt he permi ssi-
bl eg ross we ight ofyour veh icle, the :
R the towingeyec ouldde tach itself
R the vehicle/tra iler comb inationc ouldrol l-
ove r.
The reisar isko fana ccident.
Wh entow ingortow -sta rtinganothe rvehi-
cle ,its we ight sho uldn otbe gre atertha n
the permi ssibleg ross we ight ofyour veh icle.
Deta ilso nthe permi ssibleg ross veh iclew eigh t
of your veh iclec an be fou ndonthe vehicle
id enti ficati on plate (Ypage 298 ).
! Wh
enActiv eBrake Assi st,Activ eDistance
Assi stDISTR ONICorthe HOLD functio nis
acti vated ,the veh icleb rakes automa tically
in certa insitua tions.
To avoidd amaget ot he veh icle, de acti vate
the sesystem sint he followi ng orsimil arsit-
ua tio ns:
R wh en tow ingthe vehicle
R in the carwash
! Onl
ysecuret he tow ropeortow bara tthe
tow ingeyes. Othe rwise, the vehiclec ouldbe
da ma ged.
! Do
not uset he tow ingeyef or reco very,
thi sc ouldda ma gethe vehicle. Ifin do ubt,
reco verthe vehiclew ithac rane.
! Wh
entow ing,pulla wa yslowly and
smo othly.Ifthe tractiv epoweristoo high,
the vehicles cou ldbe dama ged.
! Do
not tow with sling -typ eequipm ent.This
cou ldda ma gethe vehicle.
! Wh
entow ingaway veh icles with KEYL ESS-
GO ,use the key instea dofthe Star t/Stop
bu tton. Theautoma tictransmi ssion may
othe rwises hift to positio n005D when you
op en the driver 'sor fro nt-pa ssenge rdoor,
wh ich cou ldda ma gethe transmi ssion. !
Ma
kesure tha tthe electri cparkin gb rake
is rel eased .Ift he electri cparkin gb rake is
fa ulty, visitaq ualifi ed speci alistw orksh op.
! Yo
um aytow thevehiclef or am axim um
di sta nce of30 miles(50 kilome ters).At ow -
ing spee do f30m ph(50 km/h )mustn ot be
exce eded.
For towingdista nces over30m iles
(50 kilome ters),the entireveh iclem ustb e
ra ised and transp orte d.
! Wh
enyoua retow -sta rtingortow ing
ano thervehicle, its weight mu stnot exce ed
the maxim um permi ssibleg ross we ight of
yo ur veh icle.
It is be tter tohave the vehiclet ransp orte d
tha ntoh avei ttow ed away.
The automa tictransmi ssion mu stbe inpo si-
tio n005C when the vehiclei sb eing tow edaway.
The battery mustbe conne ctedandcharged.
Othe rwise, you:
R canno tturnt he Sma rtKeytop ositio n 0048 in
the igniti onlock
R canno tshift the automa tictransmi ssion to
po sitio n005C
Dea ctivate the automa ticlocking feature
be for ethe veh iclei st ow ed (Ypage 179 ).Yo u
cou ldothe rwiseb eloc ked outw henp ushing
or tow ingthe vehicle. In
stal ling /re mov ingt he tow inge ye
In stal ling the towinge ye G
WA
RNING
The exhaust tai lpipem aybe veryhot. The re
is ar isko fburns when rem oving the rear
cove r.
Do not touchthe exhaust pipe .Takep artic u-
la rc arew henr em oving the rearcove r. 26
4 Tow
inga nd tow -starti ngBreak downassistanc e

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