#
Take car eth at thepositiv ete rm inal ofa
connect edbatt erydoes notcome into
cont actwithve hicle parts. #
Neverplace metalobjects ortools ona
batt ery. #
When connecting anddisconnecting the
batt ery, alw aysobser vetheseq uence of
batt eryte rm inals descr ibed. #
Alwaysta ke car eto conn ectonlybatt ery
te rm inals ofidentical polaritywhen jump
st ar ting ave hicle. #
Duringstar tin gassis tance, itis ess entia l
to obser vetheseq uence describedfor
conn ectingand discon nectingthe
jum per cable s. #
Donotco nnec tor dis connec tth ebat-
te ry term inals while theengine isrun-
ning. &
W W
ARNI NG ARNI
NGRisk ofexplosion duetoamix-
tur eof explosiv ega ses
A mixtu reofexplosiv ega ses can escape from
th ebatt erydur ing chargin gand jump star tin g. #
Fire ,open 0ames, smokingand creati ng
spar ksmust beavo ided. #
Mak esur eth at ther eis su1cien tve ntila -
tion. #
Donotst and overth ebatt ery. &
W W
ARNI NG ARNI
NGRisk ofexplosion from afrozen
batt ery
A disc hargedbatt eryma yfreeze attemp era-
tur es slightl yabo veorbelo wfreezin gpoint.
Dur ingstar ting assist anceorbatt erych argin g,
batt eryga scan bereleased. #
Alwaysallo wabatt eryto thaw before
ch argin git or per form ing star ting assis -
ta nce. If
th eindicat or/warning lampsintheinst rument
clust erdo notlight upatlow temp eratur es,itis
ve ry likelyth at thedisc hargedbatt eryhas frozen.
In this case youma yneit her jump-st artth eve hi-
cle nor charge thebatt ery.
The service life of abat tery that has been thawe d
ma ybe dramaticall yshor tened. Thestar ting char- act
eristics maybe impair ed,especi allyat low
te mp eratur es.
It is recommen dedthat youha ve ath awe dbatt ery
ch eckedat aqu ali/ed special istwo rkshop.
All v All
vehicle s ehicle
s
* NO NO
TE TE
Damag ecaused bynume rous or
ex tended attem ptsto star tth eengine Numer
ousorextended attem ptsto star tth e
engine maydamag eth ecat alytic converter
due tonon-c ombusted fuel. #
Avoid numer ousand extended attem pts
to star tth eengine. Obser
vethefo llo wing points during star ting assis -
ta nce and when chargin gth ebatt ery:
R Onlyuse undamag edjum per cables/c harging
cables withasu1cient cross-section and
insulat edterm inal clam ps.
R Non-in sulatedpar tsof thete rm inal clam ps
must notcome intocont actwithot her metal
par tswhile thejum per cable/c harging cable 340340
Br
eakdo wnassist ance
Alw
aysbegi nwit hPOS ITIVE contact2on
yo ur ow nve hicle /rst. #
Dur Dur
ingst ing
star ar
tin gassis t tin
gassis tance: ance:
star tth eengine of
th edonor vehicle andrunat idle speed. #
Conne cttheneg ativete rm inal ofthedonor
batt eryand ground point 3ofyour ow nve hi-
cle byusing thejum per cable/c harging cable.
Begin withth edonor battery/r st. #
Dur Dur
ingst ing
star ar
ting assist ting
assist ance: ance:
star tth eengine of
yo ur ow nve hicle. #
Dur Dur
ingt ing
the c he
char har
gingpr gin
gpr ocess: ocess:
star tth ech arg-
ing process. #
Dur Dur
ingst ing
star ar
tin gassis t tin
gassis tance: ance:
letth eengines run
fo rse veralminut es. #
Dur Dur
ingst ing
star ar
ting assist ting
assist ance: ance:
beforedisconnect-
ing thejum per cable, switchon anelectr ical
consumer onyour ow nve hicle, e.g.th ere ar
wind owheat eror lightin g.
When thestar ting assist ance/c harging process is
com plete,per form thefo llo wing steps: #
Firs t, re mo vethejum per cable/c harging cable
fr om ground point 3and theneg ativete rm i- nal
ofthedonor battery, then POSITIVE con-
ta ct 2 and thepositiv ete rm inal ofthedonor
batt ery. Begin each time withth econt acts on
yo ur ow nve hicle /rst. #
ATer remo vingth ejum per cable/c harging
cable, closecover1 ofPOSITIVE contact
2.
Fu rther informatio ncan beobt aine dat aquali/ed
special istwo rkshop. RR
eplaci ngt eplaci
ngthe 12 Vbatt he
12 Vbatt ery er
y #
Obser vetheno teson the12 Vbatt ery
(/ page338).
Mer cedes-Benz recommen dsthat youha ve the
12 Vbatt eryre placed ataqu ali/ed special ist
wo rkshop, e.g.at an aut hor izedMer cedes- Benz
Cen ter.
Obser vethefo llo wing notesif yo uwa nttoreplace
th ebatt eryyo urself:
R Alwaysre place afa ulty batterywit habatt ery
whic hmee tsthespeci/c vehicle requ ire-
ments. The
vehicle iseq uipp edwithan AGMtech nol-
ogy battery (Absor bentGlass Mat)or alith-
ium -ionbatt ery. Fu llve hicle funct ionalityis
onl yguar anteed withan AGMbat tery or lith-
ium-ion battery. Fo rsaf etyre asons, Mercedes-
Ben zre commen dsthat youonl yuse batteries
whic hha ve been tested andap pro vedfo ryo ur
ve hicle byMer cedes-Be nz.
R Carryove rde tach able parts,suc has vent
hos es,elbo w/tting sor term inal covers from
th ebatt erybeing replaced.
R Mak esur eth at theve nt hos eis alw ayscon-
nect edtotheor iginal opening ontheside of
th ebatt ery.
Ins tallan yex istin gor supplied cellcaps.
Ot her wise, gases orbatt eryacid could
escape.
R Mak esur eth at detach able partsarere con-
nect edinthesame way. 342342
Br
eakdo wnassist ance
NN
o o
t t
es on noise orunusual handling c es
on noise orunusual handling char har
act act
er er
is- is-
tics tics
Mak esur eth er ear eno vibr ations, noisesor
unusual handling charact eristics when theve hicle
is in mo tion .This mayind icat eth at thewheels or
tir es aredamag ed.Hidden tiredamag ecould also
be causing theunusual handling charact eristics.
If yo ususpec tth at atir eis malf unct ioning,re duce
yo ur speed immediat elyand have thetir es and
wheels checkedat aqu ali/ed special istwo rkshop. NNo o
t t
es on r es
on regu larl egu
larly insp ectingwheels andtir y
insp ectingwheels andtires es
&
W W
AR NIN G AR
NIN GRisk ofinjuryth ro ugh damag ed
tir es
Damag edtires can cause tirepr essur eloss. #
Chec kth etir es regula rly fo rsigns of
damag eand replace anydamag edtires
immediat ely. &
W W
ARNI NG ARNI
NGRisk ofhydroplaning dueto
insu1c ienttiretread
Ins u1cient tiretread willresult inreduced tire
gr ip.
In hea vyrain or slush therisk ofhydroplaning
is incr eased, inpar ticular wherespeed isno t
adap tedto suit theconditions. #
Thus, youshould regula rly ch eckth e
tr ead depthand thecondition ofthe
tr ead across theentir ewidt hof all tires.
Minimum tread depthfor:
R Sum mertir es :00CE in(3 mm )
R M+S tires :00CFin (4mm ) #
Forsaf etyre asons, replace thetir es
bef oreth eleg ally-pr escr ibed limitforth e
minimum tread depthisreac hed. Car
ryout thefo llo wing checks on allwheels regu-
lar ly,at leas tonce amonth oras requ ired ,fo r
ex am ple, prior toalon gjou rney ordrivin go.-
ro ad:
R Chec kth etir epr essur e(/ page352). R
Visuall yinsp ectwheels andtires fordamag e.
R Chec kth eva lve caps.
R Visual checkof thetir etread depthand the
tir econt actsurface acr oss theentir ewidt h.
The minimum tread depthforsummer tires is
00CE in(3 mm) andforwint ertires 00CF in(4 mm). Six
mar ks1 showwher eth ebar indicat ors
(ar row) areint egratedint oth etir etread. Theyar e
visible onceatir etread depthofappr oximat ely
00CD in(1.6 mm) hasbeen reac hed. Wheel
sand tires
351 351
NN
o o
t t
es on sno es
on sno wc w
chains hains
&
W W
ARNIN G ARNIN
GRisk ofaccident duetoincor -
re ctl yins talled snowch ains
If yo uha ve inst alled snowch ains onthefront
wheels, they ma ydr ag agains tth eve hicle
body orchassis compone nts. #
Neverinst allsno wch ains onthefront
wheels. #
Onlyinst allsno wch ains onthere ar
wheels inpair s. *
N NO O
TE TE
Damag eto com pone ntsoftheve hi-
cle body orchassis duetomount edsno w
ch ains If
yo umount snowch ains tothefront wheels
of 4MA TICvehicles, youma ydamag ecom po-
nents oftheve hicle body orchassis. #
Onlymoun tsno wch ains tothere ar
wheels of4MA TICvehicles. R
Snow chains areonl yper missib leforcer tain
wheel/tir ecombinations. Youcan obtain infor- mation
aboutthis from anaut hor ized
Mer cedes-Benz Center.
R Forsaf etyre asons, onlyuse snowch ains that
ha ve been speci/call yappr ovedfo ryo ur vehi-
cle byMer cedes-Be nz,orsno wch ains with
th esame qualit yst andar d.
R Com plywit hth einst allation instruction sof the
sno wch ain manu factur er.
R Ifsno wch ains areins talled, themaximum per-
missible speedis30 mph(5 0km /h).
R V V
eh icle swi t eh
icle swi th A h
Act iv ct
ive P e
Par ar
king Assist ki
ng Assist : :
Do not
us eAc tivePa rking Assist whensnowch ains
ar eins talled.
% Youcan deactiv ateESP ®
to pull away
( / pag e194). Thisallowsthewheels tospin ,
ac hie vingan incr eased drivi ng forc e. TT
ir ir
e pr e
pr essur e essur
e NNo o
t t
es on tir es
on tirepr e
pr essur e essur
e &
W W
ARNIN G ARNIN
GRisk ofaccident duetoinsu1-
cient orexcessiv etir epr essur e
Un der in0a tedor ove rin0at edtire spose inpar -
ticu larthefo llo wing risk s:
R The tires can burst.
R The tires can wearexcessiv elyand/ or
une venly.
R The driving charact eristics aswellas the
st ee ring and brak ing charact eristics may
be greatl yim pair ed. #
Com plywit hth ere commen dedtirepr es-
sur esand checkth etir epr essur eof all
tir es, including thespar ewheel, regu-
lar ly:
R Mont hly
R Whe nth eload chang es
R Beforeembar kingonalon gerjour ney 352352
Wheels
andtires
per
mit anyre liable conclusion aboutthetir epr es-
sur e.
Onl ycor rect tirepr essur ewhen thetir es arecold.
Conditions forcold tires:
R The vehicle hasbeen parkedwit hth etir es out
of dir ect sunlight forat least thre ehour s.
R The vehicle hastrav eled lessthan 1mile
(1.6 km).
The vehicle' stir es heat upwhen drivi ng .As the
te mp eratur eof thetir es incr eases, sotoodoes
th etir epr essur e.
V V
ehicles wit ehicles
withatir h
atir epr e
pr essur essur
emonit e
monit or or
ing syst ing
system: em:
Yo ucan also checkth etir epr essur eusing theon-
boar dcom puter.
The tirepr essur ere commen dedforincr eased
load/speed inthetir epr essur eta ble can a.ect
th eride comf ort. &
W W
ARNIN G ARNIN
GRisk ofaccident duetounsuit a-
ble acces sories ontireva lves
If yo umount unsuitableacces sories ontotir e
va lves, thetir eva lves ma ybe overloaded and malfunction,
whichcan cause tirepr essur e
loss. #
Onlyscr ew stan da rd valve caps orvalve
caps speci/call yappr ovedby Mer cedes-
Benz foryo ur vehicle ontoth etir eva lve. NNo o
t t
es on tr es
on trailer oper ailer
operation ation
Alw aysin0at eth ere ar axle tires tothere commen -
ded tirepr essur eon thetir epr essur eta ble for
incr eased load. TT
ir ir
e pr e
pr essur essur
et e
table able
The
tirepr essur eta ble ison theinside ofthefuel
/ller 0ap.
% The datasho wnintheimag esisex am ple
dat a. The
tirepr essur eta ble showsthere commen ded
tir epr essur efo rall tires appr ovedfo rth is vehicle.
The recommen dedtirepr essur esappl yfo rcold
tir es under various oper ating condition s,i.e. load-
ing and/or speedoftheve hicle.
If one ormor etir esize spr ecede atir epr essur e,
th efo llo wing tirepr essur einf ormation isonl yva lid
fo rth ose tiresizes andtheir respecti veload con-
dition.
The load conditions "partiallyladen" and"fully
laden" arede/n edintheta ble fordi.er entnum-
ber sof passeng ersand amounts oflugg age. The
actual number ofseats maydi.er from this. 354354
Wheels
andtires
Som
etir epr es su re tables onlysho wtherim diam-
et er inst ead ofthecom pletetiresize, e.g.R18 R18
.
The rim diame teris par tof thetir esize andcan
be found onthetir eside wall(/ page366).
R Tire and Loadi ngInformatio nplacar d
(/ page359)
R Maxim umtirepr essur e(/ page365) ChecChec
kingt king
the tir he
tirepr e
pr essur essur
emanu ally e
manu ally #
Read thetir epr essur ere commen dedforth e
cur rent ope rating condi tions from theTire and
Loadi ngInformatio nplacar dor thetir epr es-
sur eta ble. Obser vetheno teson tirepr essur e. #
Remo vetheva lve cap ofthetir eto be
ch ecked. #
Press thetir epr essur ega ug esecur elyont o
th eva lve. #
Read thetir epr essur e. #
Ifth etir epr essur eis lowe rth an there com-
mende dva lue, increase thetir epr essur eto
th ere commen dedvalue. #
Ifth etir epr essur eis higher than there com-
mende dva lue, release air.To do so, press
do wn theme talpin intheva lve, e.g. using the
tip ofapen. Then, checkth etir epr essur e
ag ain using thetir epr essur ega ug e. #
Screw theva lve cap ontoth eva lve.
Fu rther relat ed subjects:
R Noteson tirepr essur e(/ page352)
R Tire pressur eta ble (/ page354) R
Tire and Loadi ngInformatio nplacar d
(/ page359) TT
ir ir
e pr e
pr essur essur
emoni t e
moni tor or
ing syst ing
system em
FF
unct ionoft unct
ionofthe tir he
tirepr e
pr essur essur
emoni t e
moni tor or
ing syst ing
system em
&
D D
AN AN
GER GER
Riskofacciden tdue toincor rect
tir epr essur e
Eac htir e, incl udin gth espar e(if pro vided),
should becheckedmont hlywhen coldand
in0a tedto thein0 ation pressur ere commen -
ded bytheve hicle manu factur eron theve hi-
cle placar dor tirein0ation pressur elabel .(If
yo ur vehicle hastires ofadi.er entsize than
th esize indicat edon theve hicle placar dor
tir ein0ation pressur elabel ,yo ushould deter-
mine thepr oper tirein0 ation pressur efo r
th ose tires.)
As anadded safetyfe atur e,your vehicle has
been equipped withatir epr essur emoni toring
sy stem (TPMS) that illu min ates alow tirepr es-
sur ete lltale when oneormor eof your tires is
sign i/ca ntly under -in0at ed. Accor ding ly,when Wheel
sand tires
355 355
th
elow tirepr essur ete lltale illuminat es,you
should stop and checkyo ur tires assoon as
possible, andin0ateth em tothepr oper pres-
sur e.Driving onasign i/can tlyu nde r-in0 ated
tir ecauses thetir eto overheat andcanlead
to tirefa ilur e.Under -in0at ion also reduces fuel
e1ciency andtiretread life, and maya.ect
th eve hicle ’shandl ingand stoppin gabili ty.
Ple ase note that theTPMS isno ta substitut e
fo rpr oper tiremaint enance, anditis thedr iv-
er ’s responsi bilityto maint aincorrect tire
pr essur e,even ifunder -in0at ion has not
re ac hed theleve lto trigg erillum inatio nof the
TPMS low tirepr ess urete lltale.
Yo ur vehicle hasalso been equipp edwith a
TP MS malf unct ionindicat ortoindicat ewhen
th esy stem isno toper ating proper ly.The
TPMS malfunction indicatoris combined with
th elow tirepr essur ete lltale. When thesy stem
de tects amalfu nction, thete lltale will 0ashfo r
appr oximat elyone minut eand then remain
contin uouslyillumin ated. This sequence will
contin ueupon subseq uentvehicle star t-ups as
lon gas themalfunction exists. When
themalfunction indicatorisilluminat ed,
th esy stem mayno tbe able todetect or sign al
lo w tirepr essur eas intende d.TPMS malfu nc-
tion sma yoccur fora va riet yof reasons,
incl udin gth einst allation ofreplacement or
alt ernat etir es orwheels ontheve hicle that
pr eve nttheTPMS from function ingproper ly. The
system checks thetir epr essur eand thetir e
te mp eratur eof thetir es inst alled ontheve hicle by
means ofatir epr essur esensor .
The tirepr essur eand thetir ete mp eratur eappear
in theon-boar dcom puter(/ page356).
If th er eis asubst antial pressur eloss orifth etir e
te mp eratur eis excessiv e,youwill bewarned with
displa ymessag es(/ page449) orthe0077
wa rning lampin theinst rument cluster
(/ page471).
The tirepr essur emonit oring system isonl yan aid.
It is thedr iver's responsi bilityto setth etir epr es-
sur eto there commen dedcold tirepr essur esuit a-
ble forth eoper ating situation.
In most cases ,th etir epr essur emonit oring sys-
te m will automaticall yupdat eth ene wrefere nce va
lues aTer youha ve chang edthetir epr essur e.
Yo ucan, howev er,also updat eth ere fere nce val-
ues byrestar ting thetir epr essur emonit oring sys-
te m manuall y(/ page357).
Sy st Sy
stem limits em
limits
The system maybe impair edorma yno tfun ction
par ticular lyin thefo llo wing situations:
R Incor rect refere nce values weretaught in
R Sudden pressur eloss caused byafo re ign
object penetrating thetir e, forex am ple
R Ther eis amalf unct ioncaused byano ther
ra dio signal source
Chec Chec
kingt king
the tir he
tirepr e
pr essur essur
ewit e
wit ht h
the tir he
tirepr e
pr essur e essur
e
monit monit
or or
ing syst ing
system em
R R
eq equir uir
ements: ements:
R The vehicle isswitc hedon.
On- boar dcom puter:
4 Service5
Tires
One ofthefo llo wing displa ysappear s:
R Current tirepr ess ureand tirete mp eratur eof
th eindividual wheels: 356356
Wheels
andtires
R
Tire pressure willbedisplay edafter driving a
few minutes
R Tire Pressure MonitorActive: thete ac h-in
pr ocess ofthesy stem isno tyet com plete.The
tir epr ess ures arealr eady being monitored. #
Com pareth etir epr essur ewit hth ere com-
mende dtir epr essur efo rth ecur rent ope rating
condi tion(/page354) .Ad ditionall y,obser ve
th eno teson cold tires (/ page352).
% The values displa yedin theon-boar dcom-
put erma yde viat efrom those ofthetir epr es-
sur ega ug eas they referto sea leve l.At high
ele vations, thetir epr essur eva lues indicat ed
by apr essur ega ug ear ehigher than those sho
wnbytheon-boar dcom puter.In this case,
do notre duce thetir epr essur e.
R R
est est
ar ar
ting t ting
the tir he
tirepr e
pr essur essur
emonit e
monit or or
ing syst ing
system em
R R
eq eq
uir uir
ements: ements:
R The recommen dedtirepr essur eis cor rectl y
se tfo rth ere specti veoper ating status onallof
th ewheels (/page352).
Re star tth etir epr essur emonit oring system inthe
fo llo wing situations:
R The tirepr essur ehas chang ed.
R The wheels ortires have been chang edor
ne wly installed.
On-boar dcom puter:
4 Service 5
Tires #
Swipe down wardson Touc hContr olon the
leT-h andside ofthesteer ing wheel.
The Use Curre ntPressure sas New Refer-
ence Valuesmessag eis sho wnintheInstr u-
ment Displa y. #
Torestar t,pr es sTo uc hContr olon theleT-
han dside ofthesteer ing wheel.
The Tire Press. Monitor Restarted messageis
sho wnintheInstr ument Display.
Cur rent wa rning messa gesar edele tedand
th eye llo w0077 warning lampgoes out.
ATer youha ve been driving fora few minut es,
th esy stem checks whe ther thecur rent tire
pr ess ures arewit hin thespeci/ed rang e. The
cur rent tirepr ess ures areth en accep tedas
re fere nce values andmonit ored.
Be sureto also payatt ent ion tothefo llo wing rela-
te dto pic:
R Noteson tirepr essur e(/ page352) TT
ir ir
e pr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
FF
unct ionoft unct
ionofthe tir he
tirepr e
pr essur essur
eloss w e
loss war ar
nin gsy st nin
gsy stem em
The tirepr essur eloss warning system warnsth e
dr iver by means ofdispla ymessag eswhen ther e
is ase vere tirepr ess ureloss . Whee
lsand tires
357 357