Jump
-starting G
WARNING Failure
tofollow thesedirections willcause damage tothe electronic componen ts,and canlead
to abattery explosion andsevere injuryordeath.
Never leanover batteries whileconnecting orjump startin g.You might getinjured.
Battery fluidcontains sulfuric acid.Donot allow thisfluid tocome incont actwith eyes, skinor
clothing. Incase itdoes, immediately flushaffected areawithwater, andseek medical helpif
necessary.
Ab attery will also producehydro gengas, whichis flam mable andexplosiv e.Keep flamesor
spar ksaway from battery, avoid improper connectiono fjumpe rcables, smoking,etc.
At tempt ingtojum pstart afroz en bat tery can result initexp lodin g,caus ingpers onalinj ury.
Read allinstruct ionsbefo reproc eedin g.
! Avoid repe atedand lengthy start ing attempt s.Ot her wise, non-com bust edfuel may
damage thecat alytic converter27
and creat earisk offire.
Do notu se arapid-charging devicetostart theengine.
Make surethejumper cablesarenot damage d.
Make surethejumper cablesarenot touching anyother metal objects whentheyare
conn ected tothe battery.
If your vehicle's batteryisdischarged, theengine canbejump-start edfrom another vehicle
or from asecond batteryusingjumper cables.
Observe thefollowi ngpoints:
X The battery isnot accessible inall vehicles. Ifthe other vehicle's batteryisnot accessible,
jump-start thevehicle usingasecond batteryorajump- start ing device.
X On lyjum p-start theveh iclewhen theen gin eis co ldand thecat alyti cconvert ersystem has
cooled down28
.
X Do not start theengine ifthe battery isfroz en.Let the battery thawfirst.
X Jump-start ingmay onlybeperformed frombatteries withanominal voltageof12 V.
X Only usejumper cableswhichhaveasufficient cross-section andinsulated terminalclamps.
X Make surethatthejumper cablescannotcome intocontactwith parts, suchasthe pulley
or the fan. These partsmove whentheengine isstart edand while itis runnin g.
X Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected
for afew minutes beforeattempt ingtostart .This charges theempty battery alittle. i
Jumper
cablesandfurther information aboutjump-st artingcanbeobtained fromany
authorized Mercedes-Ben zCent er,for example.
X Make surethatthetwo vehicles donot touch.
X Secure thevehicle byapplying theelectr icparkin gbrake.
X Shift thetran smission toposition P.
27 Only vehicles withagasoline engine.
28 Only vehicles withagasoline engine. Jum
p-starting
341Breakdown assistance Z
X
Turn theSmart Keytoposition 0(Y page 139)inthe ignition lockandremove it.On vehicles
with KEYLE SS-GO, make suretheignition isswitched off(Ypage 139). Allindicator lamps
in the instr ument cluster mustbeoff.
X Switc hoff allelectric alcons umers (e.g.radio, blower, etc.).
X Open thehood (Ypage 312). Position
numberBidentifies thecharged batteryofthe other vehicle oran equivalent jump-
start ingdevice.
X Slide cover :ofpositive terminal; inthe direction ofthe arrow.
X Connec tpositive terminal; onyour vehicle topositive terminal= ofdonor battery B
using thejumper cable,beginning withyour ownbattery.
X Start theengine ofthe donor vehicle andrunitat idling speed.
X Connect negative terminal? ofdonor battery Btoearth pointAofyour vehicle using
the jumper cable,connectin gthe jumper cabletodonor battery Bfirst.
X Start theengine.
X Allow theengine torun forafew minutes beforedisconn ectingthe jumper cable.
X First ,remove thejumper cablefromearth pointAand negative terminal?, then from
positive terminal; and positive terminal=, each timedisconn ectingfrom thecont acts
on your ownvehicle first.
X Aft erremoving thejumper cable,closecover :onpositive terminal;.
X Have thebattery checkedataquali fiedspecialist workshop, e.g.anauthorized Mercedes-
Benz Center. Thejump-st artingprocedure isnot astandard operating state;therefor e,have
the battery checked. 342
Jum
p-startingBreakdown assistance
Tow
ingand tow-starti ng Impo
rtant safety notes G
WA
RNING If
yo utow thevehicle, youmu stusearig id
tow ingbarif:
R the engine isnot running.
R there isabrake system malfunction.
R there isamal function inthe pow ersup ply
or the vehicl e'selectrical system .
The pow erassi stance forthe steering andthe
brake forcebooste rdo not work when the
engine isnot running. Youwillneed more
force tosteer andbrake, youmay have to
depre ssthe brake pedalwith maximu mforce.
Before towing away,make surethatthe
steering canbemoved andisnot locked.
If you tow ortow-st artanother vehicle,its
weight mustnotexceed themaximum
permissible grossvehicle weightofyour
vehicle. G
WARNING The
vehicle isbraked whentheHOLD function
or DIS TRONIC PLUSisactivated. Therefore,
deactivate HOLDandDISTRONIC PLUSifthe
vehicle isto be towed.
It is better tohave thevehicle transported
than tohave ittowed.
! You may onlytowthevehicle amaximum
distance of30 miles (50km). Atowing
speed of30 mph (50km/ h)must notbe
exceeded.
For towing distances over30miles
(50 km), thevehicle mustloaded ontoa
trans porter.
! Make surethattheelectric parking brake
is released. Ifthe electric parking brakeis
faulty, visitaquali fiedspecialist workshop.
! Only secure thetow rope ortow baratthe
towing eyes.Otherwise, thevehicle could
be damaged. !
Donot use thetowing eyeforrecovery,
as this could damage thevehicle. Ifin
doubt, recover thevehicle withacrane.
! When towing, pullaway slowly and
smoothly. Ifthe tract ivepower istoo high,
the vehicles couldbedamaged.
! Donot tow with sling-t ypeequipment.
This could damage thevehicle.
! When towing vehicles withKEYLE SS-GO,
use thekey instead ofthe Start /Stop
button .Othe rwise, the automa tic
tra nsmi ssion mayshi ftto positio nP wh en
the driver 'sor fro nt-pa ssenge rdo or are
op ene d,wh ich cou ldlead todama getothe
tra nsmi ssion.
! Vehicle swi th diffe renti allocks: make
su re tha tthe differential locksarein
automatic mode.Whentowing, the
differential locksmustnotbeswitched on
by hand. Thiscould otherwise damagethe
transmission.
If the vehicle hassuffered transmission
damage, haveittransport edon atransport er
or trailer.
The automatic transmission mustbein
position Nwhen thevehicle isbeing towed.
The battery mustbeconn ected andcharged.
Otherwise, you:
R cannot turntheSmartK eytoposition 2in
the ignition lock
R cannot shifttheautomatic transmission to
position N i
Before
thevehicle istowed, switchoffthe
automatic lockingfeature(Ypage 235).
You could otherwise belocked outwhen
pushing ortowing thevehicle. Installing/
removingthetowing eye
Installing thetowing eye Vehicles
withatrailer towhitch: ifpossible,
secure thetowing deviceonthe trailer tow
hitch (Ypage 210). Towing
andtow-star ting
343Breakdown assistance Z
X
Remo vetheto win geye require dfor fron tal
or rear couplin gfrom theveh icleto ol kit
(Y page 328).
The moun ting sfor therem ovabletowin geyes
are locate din thebump ers.They areatthe
front andatthe rear, under thecovers. i
Observe
theidentification labelson the
towing eyesandtheinformation panelson
using thetowing eyeswiththevehicle. The
towing eyesmust beinstalled inthe correct
positions. Installthe longer towing eyeat
the front ofthe vehicle andtheshorter
towing eyeatthe back. X
To open thecover atthe front: press
cover :inwards inthe direction ofthe
arrow atthe marking.
X To open thecover atthe rear: insert a
flat, blunt object intothecutout andlever
off cover ;from thebumper.
X Take cover :or; offthe opening.
X Screw thetowing eyeinclockwise tothe
stop andtighten it.
Removing thetowing eye X
Loosen thetowing eyeand unscrew it.
X Att ach cover :or; tothe bumper and
press untilitengages.
X Place thetowing eyeinthe vehicle toolkit. Towing
avehicle withboth axles on
th egrou nd
When havingyour vehicletowed, obser vethe
impor tantsafe tyno tes(Y page 343). G
WAR
NING The
power assistancefor thest eerin gand the
brak efor ce boos terdonot work when the
eng ineisnot running.You willthen nee d
muc hmor eeff ort tobrak eand steer the
veh icle.Adapt yourstyle ofdriving
accor dingly.
The automatic transmission automatic ally
shift sto position Pwhen youopen thedriver's
or fron t-passenger doororwhen youremov e
the Smart Keyfrom theignit ionlock .In order
to ensure thattheautomatic transmission
stays inposition Nwhen towing thevehicle,
you must observe thefollowing points:
X Make surethatthevehicle isstat ionary and
the Smart Keyinthe ignit ionlock isin
position 0.
X Turn theSmart Keytoposition 2in the
ignit ionlock .
On vehicles withKEYL ESS-GO, usethekey
inst ead ofthe Start/ Stop butto n
(Y page 139).
X Depres sand hold thebrake pedal.
X Shift theautomatic transmission to
position N.
X Release thebrake pedal.
X Release theelect ricparkin gbrake.
X Switc hon the hazard warning lamps
(Y page 111).
X Leave theSmart Keyinposition 2in the
ignit ionlock . i
When
towing withthehazard warning
lamps switchedon, use thecombin ation
switch asusual tosignal achang eof
direct ion.Inthis case, onlytheturn signals
for the desired directionflash. When the
combin ationswitch isreset ,the hazard
warning lampsstartflashing again. 344
Towing
andtow-st artingBreakdown assistance
Trans
portingthe vehic le
The towingeyes ortra iler tow hitch can be
us ed topullthe vehicleonto atra iler or
tra nsp orte rif yo uwi sh totra nsp ortit.
X Tu rn the Sma rtKeyto positio n2 in the
ig niti onlock.
X Shi ftthe automa tictransmi ssion to
po sitio nN.
As soon asthe vehic leisloade d:
X Pre vent thevehiclefro mr olling awayby
apply ingthe electric parking brake.
X Shift theautomatic transmission to
position P.
X Turn theSmart Keytoposition 0in the
ignition lockandremove theSmart Key
from theignition lock.
X Secure thevehicle.
! Only lashthevehicle downbythe wheels
or wheel rims,notbyparts ofthe vehicle
such asaxle orsteerin gcompon ents.
Otherwise, thevehicle couldbedamaged. Notes
for4MATIC vehicles
! Vehicles with4MATIC mustnotbetowed
with either thefront orthe rear axle raised,
as doing sowill damage thetrans mission.
If the vehicle hastrans mission damage or
damage tothe front orrear axle, have it
trans ported onatrans porter ortrailer.
In the event ofdam agetothe electrical
system
If the battery isdefectiv e,the automatic
trans mission willbelocked inposition P.To
shift theautomatic transmission toposition
N, you must provide powertothe vehicle's
electric alsystem inthe same wayaswhen
jump-st arting(Ypage 341).
Have thevehicle transported onatrans porter
or trailer. Recovering
avehicle that ha sbecome
stu ck
! Pull away smoothly, slowly, andina
st raigh tline when pulling outavehic lethat
has beco mestuck .Ex cess ivetract ive
power coulddamage thevehic les.
If the drive wheels havebecomestuck in
loose ormuddy ground,pull thevehic leout
with extreme caution,particularly ifit is
laden.
Neve rattemp ttorecover astuck vehicle with
a trailer attached.
Pull outthevehicle backwards, ifpossible
using thetrack sit made whenitbecame
stuck . Tow-star
ting(emergency starting)
! Vehicles withautomatic transmission
must notbestart edbytow-st arting. This
could otherwise damagethetrans mission. Fuses
Import
antsafety notes G
WARNIN
G Only
usefuses thathave been approved for
Mercedes-B enzvehicles andthat have the
correc tfuse rating forthe systems
conc erned. Donot attempt torepair orbridge
faulty fuses. Usingfusesthathave notbeen
approved orattempt ingtorepair orbridge
faulty fusescould cause thefuse tobe
overloaded andresult inaf ire. Have thecause
tr aced andrectified ataqualified specialist
work shop.
The fuses inyour vehic leserv eto clos edown
faulty circuits. Ifaf use blows ,all the
co mpo nentson thecir cuit andtheir fun ction s
st op oper ating.
Blo wn fuse smust berep lace dwithfuses of
the same rating, which youcan recogn izeby Fuses
345Breakdown assistance Z
Note
son reg ularly inspe cting wheels
and tires G
WA
RNI NG Re
gularly che ckthe tires for dama ge.
Dam aged tires can causetireinf latio n
pre ssu reloss. Asares ult, yo ucou ldlose
contr olof your veh icle.
Wo rn,oldtir es can causeacc idents .Ift he tire
tread isworn tominimum treaddepth, orif
the tires have sustained damage,replace
them.
R Regul arlycheck thewheels andtires of
your vehicle fordamage (e.g.cuts,
punctures, tears,bulges ontires and
deformation orcrack sor severe corrosion
on wheels) atleast once amonth,as well
as after driving off-road oron rough roads.
Damaged wheelscancause aloss oftire
pressure.
R Regula rlycheck thetire tread depth and
the condit ionofthe tread across thewhole
width ofthe tire (Ypage 351). Ifnecessary,
turn thefront wheels tofull lock inorder to
inspect theinner sideofthe tire surface.
R All wheels musthaveavalve captoprotec t
the valve against dirtand moisture. Donot
mount anything ontothe valve (such astire
pressure monitoringsystems) otherthan
the standard valvecaporother valvecaps
approved byMercedes-B enzforyour
vehicle.
R Regula rlycheck thepressure ofall the tires
including theemergenc yspare wheel orthe
spare wheel, particularly priortolong trips,
and correc tthe pressure asnecessary
(Y page 353). Tire
tread G
WARNING Although
theappli cable federal motorvehicle
safety lawsconsider atire tobe worn when
the tread wearindicators (TWI)become
visible atapproximately 1
/ 16 in
(1.6 mm), we recommen
dthat youdonot allow yourtires
to wear down tothat level. Astread depth
approaches 1
/ 8 in
(3 mm), theadhesion
properties onawet road aresharply reduced.
Depending upontheweather and/orroad
surface (conditions), thetire tract ionvaries
widely .
Do not use tires thatareexcessively wornas
the tire tract iononwet road surfaces
decreases significantly whenthetread depth
is less than 1
/ 8 inch
(3mm).
Tread wearindicators (TWI)arerequired by
law. Sixindicators arepositioned onthe tire
tread. Theybecome visibleassoon asatread
depth ofapproximately 1
/ 16 inch
(1.6mm)
has been reached. Ifthis isthe case, thetire
is so worn thatitmust bereplaced.
The recommen dedtread depth forsummer
tires isat least 1
/ 8 inch
(3mm). The
recommen dedtread depth forwinter tiresis
at least 1
/ 6 inch
(4mm). Bar
marking :for tread wearisintegrated
into thetire tread. Notes
onselec ting,mounting and
replacing tires
R Only mount tiresandwheels ofthe same
type andmake.
R Only mount tiresofthe correct sizeonto
the wheels.
R Aft ermounting newtires, runthem inat
moderate speedsforthe first 60miles Operat
ion
351Wheels and tires Z
repla
cingoneormore tiresorwhee lson you r
vehicl eto ensure thattherepla cement or
alterna tetires andwhee lsall ow the TPMS to
continue tofunction properly. i
USA
only:
If the tire pressu remonitor is
malfu nctioning, itmay take more than
10 minutes forthe tire pressu rewarni ng
lamp toinform youofthe malfu nction by
flas hing for60seconds andthen remai ning
lit.
When themalfu nction hasbeen rectified ,
the tire pressu rewarni nglamp goesout
after drivingfor afew minutes.
Information ontire pressu resisdisp layed in
the multi function display.After afew minutes
of drivi ng,the current tirepress ureofeach
tire isshow nint he multifunction display. i
The
tirepressure valuesindicated bythe
on-board computer maydiffer fromthose
measured atagas station withapressure
gauge. Thetirepressures shownbythe on-
board computer refertothose measured at
sea level. Athigh altitudes, thetire pressure
values indicated byapressure gaugeare
higher thanthose shown bythe on-board
computer. Inthis case, donot reduce the
tire pressures. i
The
operation ofthe tire pressure monitor
can beaffected byinterfer encefromradio
transmit tingequipment (e.g.radio
headphones, two-wayradios)thatmay be
being operated inor near thevehicle. i
USA
only:
This device complies withPart15ofthe
FCC Rules. Operation issubject tothe
following twocondition s:
1. This device maynotcause interfer ence,
and
2. this device mustaccept anyinterfer ence
received, includinginterferencethatmay
cause undesired operation. Any
unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment. i
Canada
only:
This device complies withRSS-2 10of
Industry Canada.Operation issubjec tto
the followi ng two cond itions :
1. Thisde vice ma ynot causeinte rferenc e,
and
2. thi sde vice mu stacc eptany inte rference
rece ived,incl uding inte rference thatm ay
caus eunde sired oper ationofthe device.
Any unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment.
Checking tirepressur eelec tronically X
Make surethattheSmartK eyisin position
2 (Y page 139)inthe ignition lock.
X Press the= or; button onthe
steering wheeltoselect the Serv. menu.
X Press the9 or: button toselect Tire
Pressure .
X Press thea button.
The current tirepressure foreach wheel will
be displa yedinthe multifunction display.
If the vehicle hasbeen parked forlonger than
20 minutes, the Tire
pressure willbe displayed
afterdriving afew minutes message
appearsinthe displa y.
Aft erateach-in period,thetire pressure
monitor automatically recognizesnew wheels
or new sensors. Ifac lear allocat ionofthe tire
press urevalues tothe indiv idual wheels isnot
possible ,the Tire
Pressure Monitor Acti
ve mess
ageisshown instead ofthe tire
press uredisplay. Thetirepress uresare
already beingmonitored. i
If
aspare wheel/ emergencyspare wheel
is moun ted,thesyst emmay continue to
show thetirepress ureofthe wheel thathas
been removedforafew minutes .If this
occ urs, notethat thevalue displayed for
the posit ionwhere thespare tireis 360
Tir
epr essur eWheels and tires
mounted
isnot thesame asthe spare
whee l/emerg encyspare wheel'scurrent
tire pressu re.
Tire pressure monitorwarning
message s If
the tire pressu remonitor detectsa
signifi cantpressu reloss onone ormore tires,
a warni ngmessa geisshow nint he
multifunction display.Aw arning tone also
soun dsand thetir epres sure warninglamp
light sup intheins trumen tcluster .
Eac htir ethat isaffec tedbyasign ificant loss
of press ureishighligh tedwith acolor .
If the Corr
ect Tire Pressure mess
age
appears inthe mult ifunc tiondisplay:
X Check thetirepress ureonallfour wheels
and correctit ifnec essary. i
If
the wheel positionsonthe vehic leare
int erc hang ed,the tirepress uresmaybe
displayed forthe wron gposit ionsfora
shor ttime. Thisisrec tified afterafew
min utes ofdrivin g,and thetirepress ures
are displayed forthe correctpositions.
Restar tingthetire pressur emonitor G
WARNIN
G It
is the driver's responsibility toset the tire
pressure tothe recommen dedcold tire
pressure. Underinflatedtiresaffect theability
to steer orbrake thevehicle. Youmight lose
cont rolover thevehicle.
When yourestart thetire pressure monitor,
all existin gwarning messages aredeleted and
the warning lampsgoout. Themonit oruses
the current lyset tire pressures asthe
referen cevalues formonit oring. Inmost
cases, thetire pressure monitoringsystem
recogn izesthenew referen cevalues
automatically. However,
youcan also define referen ce
values manually asdescribed here:
X Set thetire pressure (Ypage 353)tothe
value recomm endedforthe correspon ding
driving situation onthe Tire andLoading
Infor mation placard onthe driver's side
B-pillar.
Additional tirepressure valuesfordriving
at high speeds orwith heavy loadscanbe
found inthe tire pressure tableonthe
inside ofthe fuel filler flap.
X Make surethatthetire pressure iscorrec t
on allfour wheels.
X Make surethattheSmart Keyisin position
2 in the ignition lock.
X Press the= or; button onthe
steerin gwheel toselect the Serv. menu.
X Press the9 or: button toselect Tire
Pressure .
X Press thea button .
The multifunct iondisplay showsthe
current tirepressure ofthe individual tires
or the Tire
pressure willbe displayed
afterdriving afew minutes message.
X Press the: button .
The Use
Current Pressures asNew Reference
Values message
appearsin
the multifunct iondisplay .
If you wish toconfirm theresta rt:
X Press thea button .
The Tire
Press. Monitor Restarted message
appearsinthe multifunct ion
display .
Aft erdriving forafew minutes, thesystem
check swhether thecurrent tirepressures
are within thespecified range.Thenew tire
pressures arethen accepted asreferen ce
values andmonit ored.
If you wish tocancel theresta rt:
X Press the% button .
The tirepressure valuesstored atthe last
restart willcont inue tobe monit ored. Tir
epr essure
361Wheels and tires Z