2019 MERCEDES-BENZ SLC ROADSTER keyless

ignit
eif in con tactwith theexhaus tsyst em
or part sof the engin ethat heat up.There is
a risk offire.
Carry outregular checkstomake surethat
the reare noflamm ableforeign mate rialsin
the engin ecom partmen tor inthe exhaus t
syst em.
Durin gacold start,the engin eruns athigher
speeds toenable thecatalytic convert erto
reach itsoperat ingtem perat ure.Thesound of
the engin emay chan gedurin gthis time.
Autom atic transm ission X
Depr essthebrak epedal andkeep it
depres sed.
X Shif tthe transm ission toposit ion005D.
Tran smiss ionposit iondisplay 005Disshown
in the multif unction display.
i You
canstartthe engin ein transm ission
posit ion005Dand 005C.
Sta rting procedur ewith theSma rtKey To
star tthe engin eusing theSmar tKey inst ead
of KE YLE SS-GO, pulltheStart/ Stop butt onout
of the ignit ionlock .
X Turn theSmar tKey toposit ion0049
(Y page 118)inthe ignit ionlock andrelease
it as soon asthe engin eis runn ing.
Using KEYLESS-GO tosta rttheengine The
Start/ Stop butt oncan beused tostar tthe
vehic lemanually withoutinse rting the Smar t-
Key intothe ignit ionlock .The Start/ Stop but-
ton must beinse rted inthe ignit ionlock and
the Smar tKey must beinthe vehic le.This
mode forstar tingthe engin eoperat esinde-
pende ntly of the ECO start/sto pautom atic
engin estar tfunc tion.
X Depr essthebrak epedal andkeep it
depres sed.
X Press theStart/ Stop butt ononc e
(Y page 118).
The engin estar ts. Pulling
away
Gener alnotes G
WARN
ING
If the engin espeed isabove theidling speed
and youengag etransm ission position003A
or 0046, thevehic lecould pullaway sud-
denly. Thereisarisk ofan acc ident .
When engagingtransm ission position003A
or 0046, always firmlydepres sthe brak e
pedal anddonot simult aneously accelerat e.
! Change
gearingood timeand avoid spin-
nin gthe wheels. Youcould otherwise dam-
age thevehic le.
Depr esstheaccelerat orcaref ullywhen pulling
away.
The vehic lelock scen trally onceyou have
pulled away.Thelockingknobs inthe doors
drop down.
You canopen thedoors fromthe insid eat any
tim e.
You canalso deact ivatethe autom aticlocking
feat ure (Ypage 178).
It is only possible toshift thetransm ission
fro mposit ion005Dtothe desire dposit ionifyou
depres sthe brak epedal. Onlythenis the shift
lock released .
i Upshif
tstak eplace athigher engine
speeds afteracold start.This helps thecat-
alytic convert erto reach itsoperat ingtem -
perat uremore quickly.
Inf ormat iononthe autom aticrelease ofthe
elect ricpark ingbrak e(Y page 136).
Hill startassist Hill
star tassist helpsyouwhen pulling away
for ward orinreve rseonanuphill gradien t.It
holds thevehic lefor ashor ttim eaft eryou
have removedyour footfromthe brak epedal.
This gives youenoug htim eto move yourfoot
fro mthe brak epedal tothe accelerat orpedal
and todepres sit befor ethe vehic lebegin sto
roll. 120
DrivingDriving
andparking

With
KEYLESS-GO :if you then open thedriv-
er's orfront-passenge rdoor, theautomatic
transmissi onshifts to005D automatical ly.
If you want theautomatic transmissi onto
remai nin neutral 005C,e.g. when havingthe
vehicl eclea ned inan automatic carwas hwith
a towing system:
X Vehic leswith KEYLESS-GO :remove the
Start/Stop buttonfromtheignitio nlock.
X Insert theSmartKey intotheignitio nlock.
X All vehi cles:swi tch the ignitio non.
X Depress thebrake pedaland keep it
depre ssed.
X Shift toneutral 005C.
X Rel ease thebrake pedal.
X Rel ease theelectric parkingbrake.
X Switch offthe ignitio nand leavethe Smart-
Key inthe ignitio nlock.
Eng agin gdrive position D X
When thevehicl eis stationa ry,depre ssthe
brake pedal.
X Push thesele ctor leverback pastthefirst
point ofresis tance. Transmissio
npositi ons 0045 Park
positi on
This prevents thevehicl efrom roll-
ing awa ywhen stoppe d.
Only shiftthetransmissi oninto
posi tion 0045 (Ypag e125) when
the vehicl eis stationa ry.The park-
ing lock shou ldnot beused asa
brake whenparking.Alwa ysapp ly
the electronic parkingbrake inadd i-
tion tothe parki nglock inorder to
secure thevehicl e.
If the SmartKey isremoved fromthe
ignitio nlock, thetransmissi onis
locked.
The automatic transmissi onshifts
to 0045 automatical ly:
R when theSmartKey isremoved
from theignitio nlock
R when theengine isswi tched off
with thetransmissi oninposi tion
0046 or003A andone ofthe
doors isopened
In the event ofamalfu nction ofthe
vehicl e'selectronics, thetransmis-
sion may lockinposi tion 0045.
Have thevehicl eelectronics
checked immediatelyat aqua lified
speci alist worksho p. 0046 Reverse
gear
Only shiftthetransmissi oninto
posi tion 0046 when thevehicl eis
stationa ry. Automatic
transmissio n
127Drivi ngand parking Z

To
ensure thatthevehicle issecured against
rolling awayunintention ally:
R the electric parking brakemustbeapplied.
R the trans mission mustbeinposition 005D.
R the Smart Keymust beremoved fromthe
ignition lock.
R the front wheels mustbeturned towards the
curb onsteep uphillordownhill gradients. Switching
offthe engine G
WARNIN
G
The automatic transmission switches toneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollaway .There isa
risk ofan accident .
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked
vehicle fromrolling awaybyapplyi ngthe
parking brake.
X Apply theelectric parking brake.
X Shift thetrans mission toposition 005D
(Y page 126).
X With theSmar tKey:turn theSmart Keyto
position 0092inthe ignition lockandremove
it.
The immobilizer isactivated.
X With KEYLESS-GO: presstheKEYLE SS-GO
Start /Stopbutton (Ypage 118).
The engine stopsandallthe indicator lamps
in the instr ument cluster goout.
If the driver's doorisclosed, thisisthe
same asSmart Keyposition 0047.Ifthe driv-
er's door isopen, thisisthe same asSmart -
Key position 0092(Ypage 118).
The engine canbeswitched offwhile thevehi-
cle isin motion bypressing andholding the
Start /Stopbutton forabout threeseconds.
This funct ionoperates independent lyof the
ECO start/stopautomatic engineswitch-off
funct ion. Elec
tric par king brake
General notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R open doors, thereby endangerin gother
persons orroad users
R get out and bestruck byoncom ingtraff ic
R operate thevehicle's equipment
Addition ally,children couldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005Dorshift themanual
trans mission toneutral
R start theengine
There isarisk ofan accident andinjury.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe digital vehicle keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
Always keeptheSmart Keyoutofreach of
children. Thisalso applies forthe Digital
Vehicle Keyifthe "Digital Vehicle Key"func-
tion isactivated viaMercedes meconn ect.
The funct ionofthe electric parking brakeis
dependent onthe on-board voltage.Ifthe on-
board voltage islow orthere isamalfunct ion
in the system, itmay notbepossible toapply
the released parkingbrake.
X Ifthis isthe case, onlypark thevehicle on
level ground andsecure itto prevent itroll-
ing away .
X Shift theautomatic transmission toposition
005D.
It may notbepossible torelease anapplied
parking brakeifthe on-board voltageislow or
there isamalfunct ioninthe system. Contact a
qualified specialist workshop.
The electric parking brakeperforms afunct ion
test atregular intervalswhile theengine is
switched off.The sounds thatcanbeheard
while thisisoccurrin gare normal. Par
king
135Driving andparking Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 007A
0025
00E5 Ino perativeSee Ino
perativeSee
Ope rator'sMan ual Ope
rator'sMan ual EB
D(elec tron icbrak efor ce dist ribution),AB Sand ESP®
are mal-
fun ction ing.
Ot her drivin gsyst ems anddrivin gsaf etysyst ems mayalsomalfunc-
ti on .
In addit ion,th e00E5, 00BBand0025 warninglamp sligh tup inthe
ins trumen tclus terand awarn ingtone soun ds.
G WAR
NING
The brak esyst emcontinu estofun ction norm ally, butwithout the
fun ction slist ed abov e.The fron tand rear whee lsco uld there fore
loc kif you performafull brak eapplic ation,for exampl e.
The steer abilit yand brak ingcharac teris tics may besev erelyaff ec-
te d. The brak ingdist ancein an eme rgencybrak ingsituati oncan
inc reas e.
If ES P®
is no toper ational, ESP®
is unab leto stabiliz eth eveh icle.
The reisan increas edriskof skiddin gand anacc iden t.
X Dr ive oncar eful ly.
X Vis itaqualif iedspecialistwor kshop immediat ely. 0049
(USA
on ly) 0024 (Canada
on ly)
Tur nOn the Igni‐ Tur
nOn the Igni‐
tio nto Release tio
nto Release
the ParkingBra ke the
ParkingBra ke The
red0049 (USAon ly) or0024 (Canadaonly) ind icat orlamp lights
up.
You attemp tedto release theelec tric park ingbrak ewhile theign i-
ti on was switched off.
X Sm artKey :tur nth eSm artKey topos ition 0047intheign ition lock.
X KEYLESS -GO: swit chon theign ition . 0049
(USA
on ly) 0024 (Canada
on ly)
Ple ase Release Ple
ase Release
Par kingBra ke Par
kingBra ke The
red0049 (USAon ly) or0024 (Canadaonly) ind icat orlamp
flas hes and awarn ingtone soun ds.Aco nd ition forauto matic
rel ease oftheelec tric park ingbrak eis no tfulf illed (Ypage 135).
You aredrivin gwit hth eelec tric park ingbrak eapplie d.
X Releas eth eelec tric park ingbrak eman ually. The
red0049 (USAon ly) or0024 (Canadaonly) ind icat orlamp
flas hes and awarn ingtone soun ds.
You areusin gth eelec tric park ingbrak efor eme rgencybrak ing
(Y page 135). 0049
(USA
on ly) 0024 (Canada
on ly)
Par kingBra keSee Par
kingBra keSee
Ope rator'sMan ual Ope
rator'sMan ual The
yellow 0024warninglamp lightsup.
The electric park ingbrak eis malf unction ing .
To apply :
X Swi tchth eign ition off.
X Pre sstheelec tric park ingbrak ehan dleforatleast tensec onds.
X Sh ift thetrans mis sion topos ition 005D.
X Con sult aqualif iedspecialistwor kshop . Disp
laymes sage s
185On -boar dcomp uter anddi sp lay s 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 118).
On vehicle swith KEYLESS- GO,press the
Start/St opbutton twice(Ypage 118).
X Check thecoolant temperature gageinthe
multifu nctiondisplay.
The coolant temperature mustbebelow
158 ‡(70 †).
X Turn theSmartKey topositio n0092
(Y page 118)inthe ignition lock. X
Slowl yturn cap0043half aturn counter-clock-
wise toallow excess pressureto escape .
X Turn cap0043further <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 0044.
If the coolant levelisappro ximately 0.6in
(1.5 cm)above marker bar0087inthe filler
neck when warm, thereisenough coolant in
expansion tank0044.
X Ifnecessary ,add coolant thathasbeen tes-
ted and appro vedbyMercedes-Benz.
X Repl acecap 0043and turn itclockwise asfar
as itwil lgo.
Further information oncoolant (Ypage 301).
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. Eng
inecompar tment
243Maintenanc eand care
Z

Clean
theco ntact surf aces ofthewheel and
th ebrak edisc thoro ughly everytim eawheel
is rot ate d.Chec kth etir epre ssur eand ,if ne c-
ess ary, restartth etir epre ssur eloss warn ing
syst emorthetir epre ssur emon itor. Direct
ionofrot ation
Tire swit haspec ifieddire ction ofrot atio nhave
addit ionalben efits,e.g .if th ere isaris kof
hydr oplan ing.Thes eadvan tagescan onlybe
gain edifth etir es are install ed correspo nding
to thedire ction ofrot atio n.
An arrow onthesidew allofthetir eind icat es
its correct dire ction ofrot atio n. St
ori ng wheels
St ore wheel sth at are notbein gused inaco ol,
dry and preferably dark place.Pro tect thetir es
fr om oil,grease, gaso lineand diese l. Mou
nting awheel
Pr epa ringth evehi cle X
Stop theveh icle onsolid ,no n-slipp eryand
leve lgro und.
X Ap ply theelec tric park ingbrak eman ually.
X Bring thefron twheel sint oth est raigh t-
ahead position.
X Sh ift thetrans mis sion toposi tion005D.
X Swit choff theen gin e.
X Veh icles withoutKEYLESS- GO:remove
th eSm artKey from theign ition lock.
X Veh icles withKEYLESS- GO:open thedriv -
er' sdoor .
The vehicle elec tron ics nowhave status 0.
This isthesame astheSm artKey having
been removed.
X Veh icles withKEYLESS- GO:remove the
St art /S topbut tonfrom theign ition lock
(Y page 118).
X Ifinc luded intheveh icle equipm ent,rem ove
th etir e-ch ang eto ol kit from theveh icle.
X Saf eguar dth eveh icle again stroll ing away.
i Due
todiff ere nces inveh icle equipm ent,
no tall veh iclesare equipp edwithatir e-
ch ang eto ol kit .For inform ationon whic h to
ols are required toper formawheel
ch ang eon your vehicle,co nsult anauth or-
ize dMer cedes-Ben zCen ter.
Nec essary tire-ch ang ingtools can include,
for example :
R Jack
R Whee lch oc k
R Lug wren ch
Secur ingthevehi cletoprevent itfrom
rol ling away If
your vehicle isequipp edwithawheel choc k,
it can befoun din thetir e-ch ang eto ol kit
(Y page 252).
The foldingwheel choc kis an addit ionalsafe ty
meas uretopre ven tth eveh icle from rolling
away, forexample whenchang ingawheel .
X Fol dbot hplat esupward s0043.
X Fol dout lower plate0044.
X Guide thelugs onthelower platefully into
th eopen ingsin base plate0087. X
Plac ech oc ks orother suitable items unde r
th efron tand rear ofthewheel that isdiago-
nall yoppo siteth ewheel youwish to
ch ang e. Cha
nging awheel
289Wheels andtires Z