2020 MERCEDES-BENZ SLC light

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

Tire
andLoadin gInfor matio nplacard 0043
Recomm endedtire pressu res
The Tire and Loading Info rma tionp laca rd ison
the B-pillar on the driver 'sside (Ypage 280 ).
The Tire and Loading Info rma tionp laca rd con-
tai ns the reco mme ndedtire pre ssu res forcold
tire s.The reco mme ndedtire pre ssu res are
va lidf or the maxim um permi ssiblel oa da nd up
to the maxim um permi ssiblev ehicles peed.
Tire pres sure table The
tirepressu retab leison the insideo fthe
fu el fillerf lap. Itsho wsthe tire pressu refor all
tire spermi tted atthe factory forthisv ehicle;
see illu stra tion(exam ple) . The
tirepressu retab leconta insthe reco m-
mend edpre ssu res forcoldtiresfor vario us
op era ting cond itions, i.e.d iffe rin gloa da nd
sp ee dc ond itions.
If at ire size pre ced esatire pre ssu re,the fol-
lo wi ng tire pressu reinfo rma tioniso nlyv alid
for thattire size; see illu stra tion(exam ple) . The
load cond itions "partia llyl ad en "a nd "ful ly
la de n" ared efine dint he tab lefor diffe rent
num bers of occu pants and amounts oflug-
ga ge .The actu alnum bero fseats ma ydiffe r. Some
tirepressu retab less howo nlyt he rim
di am ete rsins tea dofthe fulltire size, e.g.R18 .
Ri md iame terisp arto fthe tire size and canbe
fou ndonthe tire side wa ll(Y page 284 ).
If the tire pressu res have been set tothe lowe r
va lues for lighte rloa ds and /or lowe rroa d
sp ee ds,the pre ssu res shouldb ereset to the
hi ghe rvalues :
R ifyo uw anttod rive with an incr eased load
and /or
R ifyo uw anttod rive athighe rroa ds peeds
The tirepressu res forincr eased load sa nd/or
hi ghe rroa ds peeds, showninthe tire pressu re
tab le,m ayhave an egati ve effect ondrivin g
comf ort.
If the tire pressu reisnot setcorr ectly,thi sc an
le ad toan exce ssive build-u pofheata nd a
su dd en loss ofpre ssu re.
For mor einfo rma tion,conta ctaq ualifi ed spe-
cia list wo rksh op. 27
2 Tire
pres sureWhe elsa nd tire s

Imp
ortant noteson tire pressu re G
WAR
NING
If th et irep ressur edrops rep eatedly, the
whee l,valv eortirem aybe damag ed.Tire
pre ssur ethatist oo low may result inat ire
blow- out.Ther eisar isko fana cciden t.
R Chec kthe tire for foreign objects.
R Chec kwhether thew hee lisl osi ng air or
th ev alveisleak ing.
If you areunab leto rec tify thed amag e,con-
tac taq ualifiedspec ialist workshop. G
WAR
NING
If you fituns uitable accessories onto tire
valv es,thet irev alves may beove rloaded
and malf unction ,w hic hc an caus etirep res-
sur eloss .Due totheir desi gn,retrof itte dt ire
pre ssur emonitors keep thet irev alveo pen .
This canalso result intire pre ssur eloss .
Ther eisar isko fana cciden t.
On lyscrew thes tand ard valvecap orother
valv ecapsa ppr ove dbyM erce des- Benzfor
your vehicleo ntot he tire valv e.
Use asuitable pressur egauge tocheckt he
ti re pre ssur e.The outerappear anceofat ire
does notp ermit any reliable conclusio nabout
th et irep ressur e.On veh icles equipp edwith
th ee lectron ictire pre ssur emonitor, thet ire
pre ssur ecan be checke di nt he on-board com-
put er.
The tire tempe rature and pressur einc reas e
when thev ehiclei sinm otion .This isdepe nd-
en to nthe driv ingspee dand thel oad.
Ther efore, you should onlyco rrec ttirep res-
sur eswhen thet ires are cold.
The tires are cold:
R ifth ev ehicleh asbeen parkedwiththe tires
out ofdire ctsun lightfor atleast three hour s
and
R ifth ev ehicleh asnotb een drivenfurther
th an 1m ile(1.6k m)
The tire tempe rature chang esdepe nding on
th eo utside tempe rature, thev ehicles pee d
and thet irel oad. Ifth et iret em perat ure
ch ang esby 18 ‡(10 †), thet irep ressur e
ch ang esby appr oximat ely10kPa( 0.1b ar/
1. 5p si).T aket hisi ntoa ccoun twhen checkin g th
ep ressur eofwarm tires .Onlyc orrect the
ti re pre ssur eifiti st oo low forthec urren t
oper ating cond ition s.Ifyou checkt he tire
pre ssur ewhen thet ires are warm ,the res ult-
ing value willbehigh erthan ifth et ires were
co ld. This isno rm al. Do notred uce thet ire
pre ssur etot he value specifiedfor cold tires .
The tire pre ssur ewould other wise betool ow.
Obs ervethe rec omm ended tire pre ssur esfor
co ld tires :
R on theT irea nd Load ingInfor mat ionplac ard
on theB -pillar onthed river' ss ide
R in thet irep ressur etableon thei nside ofthe
fuel filler flap
R prin tedi ny ellow onther im ofthee me r-
gen cy/ collaps iblespar ewhee l(dep endin g
on veh iclee quipm ent) Und
erinflated orover inflated tires
Und erinflated tires G
WAR
NING
Tir es wit hp ressur ethatist oo low can over-
heat andburs tasa consequen ce.Ina ddi-
ti on ,the ya lso suffer from exce ssiv eand/o r
irr egular wear,whic hc an sev erelyimpa irth e
brak ingproperties and thed riving charac ter-
ist ics .Ther eisar isko fana cciden t.
Av oid tire pre ssur esthat are tool ow inall
th et ires ,inc ludin gthe spar ewhee l.
Un der inflat ed tires may:
R ove rheat,leadin gtot ired efec ts
R adve rselyaff ecth andlin g
R wear exce ssiv elyand /oru neven ly
R hav eana dve rse effecto nfuel consumpt ion
Over inflated tires G
WAR
NING
Tir es wit he xces siv ely high pressur ecan
burs tbecause they are damag edmor eeas-
ily by road debris,pot hole setc.Ina ddit ion,
th ey also suffer from irregular wear,whic h
can severelyimpa irth eb rak ing properties
and thed riving charac teris tics .T her eisa
ris ko fana cciden t. Ti
re pressu re
273Wheels andtire s
Z

vehicl
etoah altb yb raking carefully.A void
abru ptsteering movements.
The tirepressu remonitor hasayellow warni ng
lamp inthe instrument clusterforindica ting
pressu reloss oram alfunction. Whether the
warni nglamp flashes orlights upindica tes
whethe ratirepressu reistoo low orthe tire
pressu remonitor ismalfu nctioning:
R ifthe warni nglamp islit continuous ly,the
tire pressu reon one ormore tiresissignifi -
cantly toolow.The tire pressu remonitor is
not malfu nctioning.
R ifthe warni nglamp flashes forapp rox-
imatel yaminute andthen remai nslitcon-
stantly, thetire pressu remonitor ismalfu nc-
tioning.
In add ition tothe warni nglamp ,am essage
app ears inthe multi function display.O bserve
the information ondisp laymessa ges
(Y pag e202) .
It may take uptoten minutes foram alfunc-
tion ofthe tire pressu remonitor tobe indica -
ted. Amalfunction willbeindica tedbythe tire
pressu rewarni nglamp flashing forapp rox-
imatel yone minute andthen remai ninglit.
When themalfu nction hasbeen rectified ,the
tire pressu rewarni nglamp goesoutafter a
few minutes ofdrivi ng.
The tirepressu revalu esindica tedbythe on-
boa rdcomputer maydiffer fromthose meas-
ured atag asstation withapressu regage .The
tire pressu resshow nbythe on-board com-
puter refertothose measu redatsea level .At
high altitudes, thetire pressu revalu esindica -
ted byap ressu regage arehighe rthan those
show nbythe on-board computer. Inthis case,
do not redu cethe tire pressu res.
The opera tionofthe tire pressu remonitor can
be affected byinterference fromradiotrans-
mitting equipme nt(e.g. radiohead phones,
two-wa yradi os) that may bebeing operatedin
or near thevehicl e.
Chec kingthetire pressure electroni -
call y X
Make surethattheSmartKey isin posi tion
0048 (Ypag e118) inthe ignitio nlock.
X Press the0059 or0065 button onthe steer-
ing whee ltos ele ctthe Serv. Serv.
menu. X
Press the0063 or0064 button tosele ct
Tire Pressure Tire
Pressure .
X Press 0076.
The current tirepressu reofeach tireis
show nint he multi function display.
If the vehicl ehasbeen parked forover
20 minutes ,the Tire pressure willbe Tire
pressure willbe
displaye dafter driving afew minutes displaye
dafter driving afew minutes
messa geapp ears.
After ateach-in process, thetire pressu re
monitor automatical lydetects newwhee lsor
new sensors. Aslong asac learallocation of
the tire pressu revalu etot he indivi dualwhee ls
is not possi ble,theTire Pressure Monitor Tire
Pressure Monitor
Active Active
displaymessa geisshow ninstead of
the tire pressu redisp lay.The tire pressu res
are already being monitored.
If an emerge ncyspare wheelism ounted, the
system maycontinue toshow thetire pressu re
of the whee lthat has been removed forafew
minutes. Beawa rethat thevalu edisplayed for
the posi tion where theemerge ncyspare wheel
is fitted isnot thesame asthe current tire
pressu reofthe emerge ncyspare wheel.
Tire pressure monitorwarnin gmes-
sage s The
tirepressu remonitor detectsapressu re
loss inone ormore tires:
R Ifthe tire pressu remonitor detectsapres-
sure lossinone ormore tires,awarni ng
messa geisshow nint he multi function dis-
pla y.The yellow tirepressu rewarni nglamp
then lights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
messa geapp ears inthe multi function dis-
pla y,the tire pressu reinat lea stone tireis
too low.The tire pressu remust becorrected
when theoppo rtunity arises.
R Ifthe Check Tires Check
Tiresmessageapp ears inthe
multi function display,the tire pressu reinat
lea stone tirehas dropp edsignifi cantly. The
tires must bechecked.
R Ifthe Warning TireMalfunct ion Warning
TireMalfunct ionmes-
sage appears inthe multi function display,
the tire pressu reinat lea stone tirehas
dropp edsudd enly.The tires must be
checked.
Observe theinstructions andsafety notesin
the disp laymessa gesinthe "Tires" section
(Y pag e202). Tire
pressure
277Wheelsand tires Z

i
Not
alltires withtheM+S marking provide
the driving characteristics ofwinter tires.In
addi tion tothe M+S marking, wintertires
also have the004D snowflake symbolonthe
tire wall.Tires withthismarking fulfillthe
requi rements ofthe Rub ber Manufa cturers
Association (RMA)andtheRub ber Associa-
tion ofCana da(RAC) regardi ngthe tire trac-
tion onsnow. Theyhave been especia lly
develo pedfordriving onsnow.
An electronic speedlimiter prevents yourvehi-
cle from exceeding aspeed of130 mph
(210 km/h).
The speed ratingoftires mounted atthe fac-
tory may behigher thanthemaximum speed
that theelectronic speedlimiter permits.
Make surethatyourtires have therequi red
speed rating, e.g.when buying new tires. The
requi redspeed ratingforyou rvehicle canbe
found inthe "tires" section (Ypage 293).
Further information aboutreadi ngtire data
can beobtained fromanyqualifiedspecia list
workshop.
Load index In
addi tion tothe load -bearing index,load
index 0043may alsobeimprinted onthe side-
wal lofthe tire. Youwillfind this after thelet-
ter that identifies thespeed rating
(Y page 284).
R Ifno specifica tionisgiven: notext (asinthe
example above),represents astandard load
(SL) tire
R XL orExt raLoad: represents areinforced
tire
R Light Load: represents alight load tire
R C, D, E:represents aload range that
depends onthe maximum loadthatthetire
can carry atac ertain pressure i
Tire
data isvehicle-spe cificandmay devi-
ate from thedata inthe example .
Maximum loadrating Maximum
tireload 0043isthe maximum permis-
sible weightfor which thetire isapprove d.
Do not overloa dthe tires byexceeding the
specifie dload limit. Themaximum permissible
load canbefound onthe vehicle's Tireand
Loadi ngInformation placardon the B-pilla ron
the driver's side(Ypage 280).
i The
actual valuesfor tires arevehicle-spe -
cific andmay devia tefrom thevalu esinthe
illu stration.
DOT, TireIdentifi cationNumber (TIN) US
tire regul ations stipulatethat every tire
manufacturer orretreader mustimprint aTIN
in or on the sidew allofeach tireproduced . The
TINisau niqu eidentification number.The
TIN enable sthe tire manufacturers orretread-
ers toinform purchase rsof recalls andother
safety-rele vantmatters. Itmakes itpossib le
for the purchase rtoe asilyidentify theaffected
tires. 286
All
about wheelsand tiresWheel sand tires