MERCEDES-BENZ SL ROADSTER 2019 Owner's Manual

All
othe rcal lscan beend edbypre ssing:
R the 0076 button onthe multifu nctio nstee r-
ing wheel
R or the corr espond ingCOMAND button for
end ingatel ephone call
i Whe
nacal lis ini tia ted ,the audio sy stem
is mu ted .The mob ile pho neisno longe r
conne ctedtoCO MAND. However,ifyo u
wa ntto useyo ur mob ile pho ne,dosoonl y
wh en the vehicleis sta tionar yand inasa fe
lo cati on.
Vehi cle Hea lthChe ck Wi
th the VehicleHea lthCheck, theCustom er
Assi stance Center canprovideimp rove dsu p-
po rtfor problems with your veh icle. Dur ing an
exi sting call,veh icleda ta istrans ferred tothe
Cu stom erAssi stance Center. Thecustome r
ser vice representa tivecanusethe rece ived
da ta to decid ewh atkind ofassista nce is
req uired .Yo uar ethen, forexa mpl e,gu ided to
the nearestMer cedes-B enzServ iceCenter or
a reco veryveh icleis cal led.
If veh icleda ta nee dstobe trans ferred during
an MB Info callor aRo adside Assi stance call,
thi sis ini tia ted bythe Custom erAssi stance
Ce nter. Youwi llsee theRoadsideAssis‐ Roa
dsideAssis‐
tan ceConnected tan
ceConnected message inthe COMAND
di spl ay.If the VehicleHea lthCheck can be
sta rted ,the Requestfor vehicledia gno‐ Req
uestfor vehicledia gno‐
sis received. Startvehicledia gno‐ sis
received. Startvehicledia gno‐
sis ? sis
?mes sage appe arsin the displ ay.
X Co nfir mthe mes sage with Yes Yes
.
X Whe nthe VehicleDia gnosis:Ple ase Veh
icleDia gnosis:Ple ase
sta rtignition. sta
rtignition. message appe ars, turn
the Sma rtKeyto positio n0048 inthe igniti on
lo ck (Ypage 126 ).
X Whe nthe Please follow theinstruc‐ Ple
ase follow theinstruc‐
tio nsreceivedbyphoneand move tio
nsreceivedbyphoneand move
you rveh icleto asaf epos ition you
rveh icleto asaf epos itionmes -
sa ge appe ars, fol low the custome rser vice
rep resenta tive'sins truc tions.
The message inthe displ aydisa pp ears.
If yo usel ect Cancel Can
cel theVehicleHea lth
Ch eck iscance led comp letel y.
The vehicleop era ting stateche ckbegins.
Yo uwi llsee theVehicledia gnosis Veh
icledia gnosis
act ivated. act
ivated.mes sage.
Whe nthe checkiscomp leted ,the Send Sen
d
veh icledia gnosti csdata(Vo ice con‐ veh
icledia gnosti csdata(Vo ice con‐
nec tionmay beinterruptedduring nec
tionmay beinterruptedduring dat
atra nsfer) dat
atra nsfer) message appe ars. The vehi-
cle data can now besent tothe Custom er
Assi stance Center.
X Pre ssOK OK
toconfi rmthe mes sage.
The voice conne ctionwi th the Custom er
Assi stance Center isterm inated .
Yo uwi llsee theVehicleDia gnosis: Veh
icleDia gnosis:
Tra nsferring data... Tra
nsferring data...mes sage.
The vehicleda ta issent tothe Custom er
Assi stance Center.
Dep endingonwhatthe custome rser vice rep-
res enta tiveagree dwi th you, the voice conne c-
tio nis re-e stablished afterthe trans feriscom-
pl ete .If nece ssary,yo uwi llbe conta ctedata
la ter time byano ther means,e.g.by e-ma ilor
pho ne.
Anothe rfu nctio nof the VehicleHea lthCheck
is the trans ferofser vice data to the Custom er
Assi stance Center. Ifaser vice isove rdue,the
CO MAND displ aysho wsames sage abou tva ri-
ou sspe cialoffe rsat your wo rksh op.
USA only:thi sinfo rma tioncan also be called
up und er"Owne rsOnl ine"at http:/ /
ww w.m busa.com.
Info rma tionon the data stor edinthe vehicle
(Y page 29) .
Info rma tionon Roadside Assi stance
(Y page 26). Garag
edoo rope ner
Ge neral notes The
Home Link®
ga rage door opene rinte grated
in the rear-view mirror allo ws youto opera te
up tothre ediffer ent door and gate system s.
Use theintegrated garage door opene ronl yon
ga rage doors that:
R ha ve safety stop andrevers efea ture sand
R mee tcur rent U.S. federa lsa fety standa rds
Once programed ,the integrated garage door
op ene rin the rear-view mirror willas su me the
fu nctio nof the garage door system 'srem ote
contro l.Pl ea se also rea dthe opera ting instruc -
tio ns for the garage door system .
Whe npro grammi ngaga rage door opene r,
pa rk the vehicleou tside the garage. Donot
ru nthe enginewhile pro grammi ng.
Ce rtai nga rage door drives areinco mpa tible
wi th the integrated garage door opene r.Ifyo u
ha ve diffi cul typro graming theintegrated Fe
atures
259Sto wag ean dfe ature s Z

garage
dooropener, contactanauthorized
Mercedes-B enzCenter.
Altern atively, youcan callthefollowing tele-
phone assistance services:
R USA: Mercedes-B enzCustomer Assistance
Center at1-80 0-FOR-MERCedes
R Canada: Customer Serviceat
1-80 0-38 7-0100
R HomeLink ®
hotline 1-800-355-3515(free of
charge)
More informat iononHomeLink ®
and/or com-
patible products isalso availa bleonline at
htt p:// www.homelink.c om.
Notes onthe declaration ofconf ormity
(Y page 27).
USA: FCCID:CB2HMIH L4
Canada: IC:279B -HMIH L4
Import antsafety notes G
WARNING
When youoperate orprogram thedoor with
the integrat edgarage dooropener, persons
in the range ofmovement ofthe door may
become trappedorbe struck bythe door.
There isarisk ofinjury.
When usingtheintegrat edgarage door
opener, alwaysmake surethatnobody is
within therange ofmovement ofthe door. G
DANGER
Combustion enginesemitpoisonous
exhaust gasessuchascarbon monoxide.
Inhaling theseexhaust gasesishazardous to
health andcanresult inpoisoning. Thereisa
risk offatal injury. Therefore, neverleavethe
engine runningan enclosed spacewithout
adequa tevent ilation.
Program ming Program
mingthebutt ons
Pay atten tiontothe "Important safetynotes"
(Y page 260). Garage
doorremote control0083 isnot included
with theintegrat edgarage dooropener.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock (Ypage 126).
X Select oneofbutton s0044 to0085 touse to
cont rolthe garage doordrive.
X To star tprogr ammingmode: pressand
hold oneofbutton s0044 to0085 onthe integra-
ted garage dooropener.
The garage dooropener isnow inprogram-
ming mode. Afterashort time,indicator
lamp 0043lights upyellow .
Indicator lamp0043lights upyellow assoon
as button 0044,0087or0085 isstored forthe first
time. Ifthe selected buttonhasalready
been programed, indicatorlamp0043will only
light upyellow aftertenseconds have
elapsed.
X Release button0044,0087or0085. Indicator
lamp 0043flashes yellow.
X To progr amthe remote control: point
garage doorremote control0083 towards but-
tons 0044to0085 onthe rear-view mirrorata
distance of2to 8in (5 to 20 cm).
X Press andhold button 0084onremote control
0083 until indicator lamp0043lights upgreen.
When indicator lamp0043lights upgreen:
programming isfinished.
When indicator lamp0043flashes green:pro-
gramming wassuccessful. Thenext step is
to synchron izethe rolling code
(Y page 261).
X Release button0084onremote control0083 for
the garage doordrive system.
If indicator lamp0043lights upred: repeat the
programing procedureforthe correspon ding
button onthe rear-view mirror.Whendoing
so, vary thedistance between remotecon-
trol 0083and therear-view mirror. 260
Featur
esStowage andfeatu res

The
required distance between remotecon-
trol 0083and theintegr atedgarage door
opener depends onthe garage doordrive
system. Severalattemptsmight beneces-
sary. Youshould testevery position forat
least 25seconds beforetryinganother posi-
tion.
Synchronizing therolling code
Pay atten tiontothe "Importan tsafety notes"
(Y page 260).
If the garage doorsystem usesarolling code,
you willalso have tosynchron izethe garage
door system withtheintegr atedgarage door
opener inthe rear-view mirror.Todo this you
will need touse theprogramming buttonon
the door drive controlpanel. Theprogramming
button maybelocated indifferent places
depending onthe manufact urer.Itis usuall y
located onthe door drive unitonthe garage
ceiling.
Familiarize yourselfwiththegarage doordrive
operating instructions ,e.g. under "Program-
ming additional remotecontrols", before carry-
ing out thefollowing steps.
Your vehicle mustbewithin reachofthe
garage doororgate opener drive.Makesure
that neither yourvehicle norany persons/
object sare present withinthesweep ofthe
door orgate.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock (Ypage 126).
X Get outofthe vehicle.
X Press theprogramming buttononthe door
drive unit.
Usually ,you now have 30seconds toinitiate
the next step.
X Get into thevehicle.
X Press previously programed button0044,0087
or 0085 onthe integr atedgarage dooropener
repeatedly untilthedoor closes.
The rolling codesynchron izationisthen
complete.
Notes onprogr ammingthe remot econ-
tr ol
Canadian radiofrequency lawsrequire a
"break" (orinter ruption) ofthe trans mission
signals afterbroadcasting forafew seconds.
Therefore, thesesignals maynotlast long
enough forthe integr atedgarage dooropener.
The signal isnot recogn izedduring program-
ming. Comparable withCanadian law,some U.S.
garage dooropeners alsofeature a
"break".
Proceed asfollows:
R ifyou liveinCanada.
R ifyou have difficulties programming the
garage dooropener (regardless ofwhere
you live) when following theprogramming
steps.
X Press andhold oneofbutton s0044 to0085 on
the integr atedgarage dooropener.
Aft erashort time,indicator lamp0043lights
up yellow.
X Release thebutton .
Indicat orlamp 0043flashes yellow.
X Press button 0084ofgarage doorremote con-
trol 0083for two seconds, thenrelease itfor
two seconds.
X Press button 0084again fortwo seconds.
X Repeat thissequence onbutton 0084of
remote control0083 until indicator lamp0043
lights upgreen.
When indicator lamp0043lights upgreen:
programming isfinished.
When indicator lamp0043flashes green:pro-
gramming wassuccessful. Thenext step is
to synchron izethe rolling code.
X Release button0084ofremote control0083 of
the garage doordrive.
When indicator lamp0043lights upred:
repeat theprogramming processforthe cor-
responding buttononthe rear-view mirror.
When doingso,vary thedistance between
remote control0083 and therear-view mirror.
The required distance between remotecon-
trol 0083and theintegr atedgarage door
opener depends onthe garage doordrive
system. Severalattemptsmight beneces-
sary. Youshould testevery position forat
least 25seconds beforetryinganother posi-
tion.
Problems whenprogramming
If you areexperienc ingproblems programming
the integr atedgarage dooropener onthe rear-
view mirror, takenoteof the following instruc-
tions:
R Check thetrans mitterfrequency usedby
garage doordrive remote control0083 and
whether itis supported. Thetrans mitterfre-
quency canusuall ybe found onthe back of
remote control0083 for the garage doordrive. Featur
es
261Stowage andfeatu res Z

The
integr atedgarage dooropener iscom-
patible withdevices thathave units which
operate inthe frequency rangeof280 to
433 MHz.
R Replace thebatteries ingarage doorremote
cont rol0083. This increases thelikelihood that
garage doorremote control0083 will trans mit
a stron gand precise signaltothe integr ated
garage dooropener.
R When programming, holdremote control0083
at varying distances andangles frombut-
ton s0044 to0085 which youareprogramming.
Try various anglesatadistance between
2and 8inches (5to20cm) oratthe same
angle butatvarying distances .
R Ifafurther remote control0083 isavailabl efor
the same garage doordrive, repeat the
same programming stepswiththisremote
cont rol0083. Before performin gthese steps,
make surethatnew batteries havebeen
installed ingarage doordrive remote control
0083.
R Note thatsome remote controlsonly trans -
mit foralimited amount oftime (theindica-
tor lamp onthe remote controlgoes out).
Press button 0084onremote control0083 again
before transmission ends.
R Align theanten nacable ofthe garage door
opener unit.Thiscanimprove signalrecep-
tion/ transmission.
Opening/clo singthegara gedoor Aft
erithas been programmed, theintegr ated
garage dooropener performs thefunct ionof
the garage doorsystem remote control.Please
also read theoperating instructions forthe
garage doorsystem.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock (Ypage 126).
X Press either button 0044,0087or0085 which you
have programmed tooperate thegarage
door.
Garage doorsystem withafixed code: indi-
cator lamp0043lights upgreen.
Garage doorsystem witharolling code:indi-
cator lamp0043flashes green.
The trans mitterwill trans mitasignal aslong
as the button ispressed. Thetrans mission
is halted afteramaximum often seconds
and indicator lamp0043lights upyellow.
X Press button 0044,0087or0085 again ifneces-
sary. Clearing
thememor y Make
surethatyouclear thememory ofthe
integr atedgarage dooropener beforeselling
the vehicle.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock (Ypage 126).
X Press andhold button s0044 and 0085.
The indicator lampinitially lightsupyellow
and then green.
X Release buttons0044 and 0085.
The memory ofthe integr atedgarage door
opener inthe rear-view mirroriscleared. Compass
Calling upthe compass Compass
0044display sthe compass directionin
which thevehicle iscurrent lytraveling: N N,
NE NE,
E E,
SE SE,
S S,
SW SW,
W W
or NW NW.
To receive acorrec tdisplay inrear-view mir-
ror 0043, thecompass mustbecalibrated and
the magnetic fieldzone set. 262
Featur
esStowage andfeatu res

Setting
thecompass North
America zonemap South
America zonemap
X Set your location usingthezone maps.
X Push around peninto opening 0087
(Y page 262)forapproximately threesec-
onds.
The zone current lyselected appearsincom-
pass display 0044(Ypage 262).
X To selec tthe zone: pusharound peninto
opening 0087(Ypage 262)untilthedesired
zone isselected.
If, after afew seconds, thedisplay incom-
pass display 0044(Ypage 262)changes direc-
tion, thezone hasbeen selected. Calibrating
thecompass X
Make surethatthere issufficient spacefor
you todrive inacircle without impeding
traffic.
In order tocalibrate thecompass correctly,do
the following:
R calibrate thecompass inthe open andnotin
the vicinity ofsteel struct uresorhigh-volt-
age transm issionlines.
R switch offelectrical consumers suchasthe
climate control,windshield wipersorrear
window defroster.
R close alldoors andthetrunk lid.
X Switch onthe ignition.
X Push around peninto opening 0087
(Y page 262)forapproximately sixseconds,
until symbol C C
is shown incompass dis-
play 0044(Ypage 262).
X Drive yourvehicle inafull circle atapprox-
imately 3mph (5km/h) to6mph
(10 km/h).
When thecalibration hassuccessfully been
completed, thecurrent direction isshown in
compass display0044(Ypage 262). Floo
rmats G
WARNING
Object sin the driver's footwell mayrestrict
the clearance aroundthepedals orblock a
depressed pedal.Thisjeopardizes theoper-
ating androad safety ofthe vehicle. Thereis
a risk ofan accident.
Stow allobject ssecurely inthe vehicle so
that they donot getinto thedriver's foot-
well. When usingfloormats orcarpets, make
sure thatthey areproperly securedsothat
they donot slip orobstruct thepedals. Do
not place several floormats orcarpets on
top ofone another. Features
263Stowageandfeatu res Z

X
Sli de the seatba ck.
X To instal l:place thefloorma tin the foot-
we ll.
X Pre ssstud s0043 onto retainers0044.
X To remo ve:pullthe floorma toff reta in-
ers 0044.
X Re move thefloorma t. 26
4 Fe
aturesStow ageand features

Engine
compartm ent Hood
Imp ortant safety notes G
WAR
NING
If th ehood isunlat ched, itmay open up
when theveh icle isin mot ionand blockyour
view. Thereis arisk ofan acc iden t.
Nev erunlat chthehood while driving.Bef ore
ever ytrip, ens ure that thehood isloc ked. G
WAR
NING
When openingand closingth ehood ,it may
sudde nlyfall intoth eclo sed posit ion.Ther e
is arisk ofinjury topers onswith inran geof
mov emen tof thehood .
Open andclosethehood onlywhen noone
is with inits ran geofmov emen t. G
WAR
NING
Open ingthehood when theeng ineisove r-
heat edorwhen there isafir ein theeng ine
com partmen tcoul dexp ose you tohot gases
or other servicepro duct s.Ther eis arisk of
inj ury.
Let anove rheatedeng inecoo ldown before
open ingthehood .If th ere isafir ein the
eng inecom partmen t,ke ep thehood closed
and contactth efir edepar tment . G
WAR
NING
The enginecom partmen tcon tain smov ing
com ponents.Cert aincom ponents,suc has
th eradiat orfan ,may continue torun orstart
again sudde nlywhen theign ition isoff .
Ther eis arisk ofinjury.
If you needto do any work inside theeng ine
com partmen t:
R swit choff theign ition
R nev erreac hint oth earea whereth ere isa
risk ofdang erfrom mov ingcom ponents,
suc has thefan rotatio narea R
rem ove jewelry andwatc hes
R ke ep items ofclo thing and hair, forexam -
ple, away from mov ingpart s
To ens ure theflow offresh airthroug hth eair
ven tsint oth eveh icle interio r,please observe
th efoll owin gno tes: (Y page 122)
Open ingthehood G
WAR
NING
Cert aincom ponentsin theeng inecom part-
men t,suc has theeng ine,radiat orand parts
of theexh aust system, canbecome very
hot .Wor kingin theeng inecom partmen t
pose sa risk ofinjury.
Wher eposs ible, lettheeng inecoo ldown
and touch onlythecom ponentsdesc ribedin
th efoll owin g. G
WAR
NING
When thehood isopen andthewind shield
wiper sare setinmot ion,you can beinjured
by thewiper linkage. Thereis arisk ofinjury.
Always switchoff thewind shieldwiper sand
th eign ition befo reopen ingthehood .
! Mak
esure that thewind shieldwiper sare
no tfold edaway from thewind shield.You
coul dot her wise damag eth ewind shieldwip-
ers orthehood . X
Mak esure that thewind shieldwiper sare
tur ned off.
X Pull release lever0043 onthehood .
The hood isrele ased. Engine
compartm ent
265Maintenance andcare Z

X
Reac hint oth egap, pullhoodcat chhan -
dle 0044upand lifthoo d0043.
If you liftthehoo dby appr oximat ely15in
(40 cm), thehoo dis open edand held open
auto maticallyby thegas- filled strut .
Closin gth ehood X
Lowe rth ehoo dand letitfall from aheig ht
of appr oximat ely8in (20 cm).
X Chec kth at thehoo dhas engage dpro perly.
If th ehoo dcan berais edslig htly, itis no t
pro perlyen gage d.Open itagain andcloseit
wit halit tle mor efor ce. Engine
oil
Not eson theoil level De
pen dingon your drivingstyle, theveh icle
co nsumes upto0.9US qt(0.8 lite rs)of oilpe r
60 0mi les(1 ,000 km).Th eoilco nsumpt ion
may behigh erthan this when theveh icle is
ne wor ifyou frequen tlydriv eat high engin e
spee ds.
De pen dingon theen gin e,theoil dipst ickmay
be inadiff ere ntloc atio n.
When check ing theoil leve l:
R park theveh icle onaleve lsurf ace
R theen gin esho uld beswit ched off for
appr oximat elyfivemin utesif th een gin eis
at norm aloper atingte mpe rature
R ifth een gin eis no tat norm aloper atingte m-
per atur e,e.g .if th een gin ewas onlystart ed
brie fly,wait about 30min utesbef ore carry-
ing out themeas urement Check
ingtheoil level usingth eoil dip -
st ick G
WAR
NING
Cert aincompo nentsin theen gin eco mpar t-
men t,suc has theen gin e,radiat orand parts
of theex haust system, canbecome very
hot .Wor kingin theen gin eco mpar tment
pose sa ris kof injury.
On lytouch thefoll owin gco mpo nentsdesc ri-
bed.
If work isbein gcar ried outonpublic roads,
pay attentio nto theroad andtraff icco nd ition s
and secure thearea asappr opriate . Ex
ample
X Pull outoildipst ick0043.
X Wipe offoildipst ick0043.
X Slo wly slide oildipst ick0043intoth eguide
tub eas far asitwill go,and takeit out
again .
If th eleve lis bet ween MINmark0087 and
MA Xmar k0044, theoil leve lis co rrect .
X Ifth eoil leve lhas dropped toMIN mark0087
or below, add1.1US qt(1l)of engin eoil.
Add ingengine oil G
WAR
NING
Cert aincompo nentsin theen gin eco mpar t-
men t,suc has theen gin e,radiat orand parts
of theex haust system, canbecome very
hot .Wor kingin theen gin eco mpar tment
pose sa ris kof injury.
Wher eposs ible, lettheen gin eco ol down
and touch onlytheco mpo nentsdesc ribedin
th efoll owin g. 266
Engine
compartm entMa intenan ceand care

G
WARNING
If engine oilcomes intocontact withhot
components inthe engine compartment, it
may ignite. Thereisarisk offire and injury .
Make surethatengine oilisnot spilled next
to the filler neck. Letthe engine cooldown
and thoroug hlyclea nthe engine oiloff the
components beforestarting theengine. H
Envi
ronmental note
When addingoil,take carenottospil lany. If
oil enters thesoil orwate rways,itis harmfu l
to the environment.
! Use
only engine oilsand oilfilters thatare
app roved forvehicl eswith aservice system.
A list ofthe engine oilsand oilfilters that
have been tested andapproved inaccord-
ance withMercede s-BenzSpecifications for
Service Productsisava ilable atany author-
ized Mercede s-BenzCenter.
The followi ngcaus eengine failure ordam-
age tothe exhau stsystem:
R Use ofengine oilsand oilfilters thathave
not been express lyapp roved forthe ser-
vice system
R Rep lace ment ofengine oiland oilfilter
after thereplacement intervalspecified
by the service system hasexpire d
R Use ofengine oiladd itives
! Do
not add toomuch oil.If the oilleve lis
abo vethe "ma x"mark onthe dipstick, too
much oilhas been added. This canleadto
dama getothe engine orthe catal yticcon-
verter. Haveexcess oilsiph oned off. Example
:engine oilcap X
Turn cap0043counter-clockwi seand remove
it.
X Add engine oil.
If the oilleve lis at or bel ow the MIN mark
on the oildip stick, add1.1USqt(1.0 liter)
of engine oil.
X Rep lace cap0043onthe filler neck andturn
clockwis e.
Ensure thatthecap locks intoplace
secure ly.
X Che ckthe oilleve laga inwith theoildip stick
(Y pag e266) .
Further informati ononengine oil
(Y pag e323) . Che
ckin gand adding otherservice
products
Che ckin gco olan tlev el G
WARNING
Certa incomponents inthe engine compart-
ment, suchasthe engine, radiator andparts
of the exhau stsystem, canbecome very
hot. Working inthe engine compartment
poses arisk ofinjury .
Where possible,let the engine cooldown
and touch onlythecomponents describedin
the followi ng. G
WARNING
Opening thehood when theengine isover-
heate dor when thereisafire inthe engine
compartment couldexpose youtohot gase s
or other service products.There isarisk of
injury .
Let anoverhe atedengine cooldownbefore
openi ngthe hood. Ifthere isafire inthe
engine compartment, keepthehood closed
and contact thefire depa rtment. G
WARNING
The engine compartment containsmoving
components. Certaincomponents, suchas
the radiator fan,may continue torun orstart
aga insud denly whentheignitio nis off.
There isarisk ofinjury . Eng
inecompar tment
267Mainten anceandcare
Z

If
you need todo any work inside theengine
compartment:
R switch offthe ignition
R never reach intothearea where thereisa
risk ofdanger frommoving components,
such asthe fanrotation area
R remove jewelryandwatches
R keep items ofclothing andhair, forexam-
ple, awayfrom moving parts G
WARNING
The cooling systemispressu rized,particu-
larl ywhen themotor iswarm. Ifyou open
the cap, youcould bescalde difhot coolant
spray sout. There isarisk ofinjury.
Let the engine cooldown before youopen
the cap. Wear protective glovesandprotec-
tive eyew earwhen opening. Openthecap
slow lyto relea sepressu re. Example
X Park thevehicle onalevel surface.
Only check thecoolant levelwhen thevehi-
cle ison alevel surface andtheengine has
cooled down.
X Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 126).
On vehicle swith KEYLESS- GO,press the
Start/St opbutton twice(Ypage 126).
X Check thecoolant temperature gageinthe
multifu nctiondisplay.
The coolant temperature mustbebelow
158 ‡(70 †).
X Turn theSmartKey topositio n0092
(Y page 126)inthe ignition lock. X
Slowl yturn cap0044half aturn counter-clock-
wise toallow excess pressureto escape .
X Turn cap0044further <004600520058005100570048005500100046004F00520046004E005A004C0056
0048[ and
remove it.
If the coolant isat the level ofmarker bar
0087 inthe fillerneck when cold,there is
enough coolant incoolant expansion
tank 0043.
If the coolant levelisappro ximately 0.6in
(1.5 cm)above marker bar0087inthe filler
neck when warm, thereisenough coolant in
expansion tank0043.
X Ifnecessary ,add coolant thathasbeen tes-
ted and appro vedbyMercedes-Benz.
X Repl acecap 0044and turn itclockwise asfar
as itwil lgo.
Further information oncoolant (Ypage 324).
Windshie ldwashe rsystem G
WARNING
Certai ncomponents inthe engine compart-
ment, suchasthe engine, radiator andparts
of the exhau stsystem, canbecome very
hot. Working inthe engine compartment
poses arisk ofinjury.
Where possible,let the engine cooldown
and touch onlythecomponents describedin
the follow ing. G
WARNING
If you open thehood when thedrive system
has overhea tedorduri ngafire inthe engine
compartment, youcould come intocontact
with hotgases orother escapi ngopera ting
flui ds. There isarisk ofburns.
Let the overhea tedcomponents cooldown
before opening thehood. Inthe event ofa
fire inthe engine compartment, keepthe
hood closed andcallthefire service. G
WARNING
Windshi eldwash erconcentrate ishighl y
flamma ble.Ifwindshi eldwash erconcentrate
gets onto hotcomponents ofthe engine or
the exhau stsystem, itcan ignite. Thereisa
risk offire and injury. 268
Eng
inecompar tmentMaintenanc eand care