2020 MERCEDES-BENZ SLC ROADSTER automatic transmission

Smar
tKey Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Additionally, childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmissionoutof
park position 005D
R start theengine
There isar isk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. G
WARNING
If you attach heavyorlarge object stot he
SmartK ey,the SmartK eycould beuninten -
tionally turnedinthe ignition lock.This
could cause theengine tobe switched off.
There isar isk ofan accident.
Do not attach anyheavy orlarge object sto
the SmartK ey.Remove anybulky keyrings
before insertin gthe SmartK eyinto theigni-
tion lock.
! Keep
theSmartK eyaway fromstrongmag-
netic fields. Otherwise, theremote control
funct ioncould beaffected.
Str ong magnetic fieldscanoccur inthe
vicinity ofpowerful electrical installations.
Do not keep theSmartK ey:
R with electron icdevices, e.g.amobile phone
or another SmartKey
R with metallic objects,e.g. coins ormetal foil
R inside metallic objects,e.g. ametal case
This canaffect thefunct ionality ofthe
SmartK ey. Smar
tKeyfunctions 0043
0037 Locks thevehicle
0044 0054 Unlock sthe trunk lid
0087 0036 Unlock sthe vehicle
X To unlock centrally: pressthe0036 but-
ton.
If you donot open thevehicle withinapprox-
imately 40seconds ofunlocking:
R the vehicle islocked again.
R anti-t heftprotect ionisreactivated
X To lock centrally: pressthe0037 button.
The SmartK eycent rally locks/un locks:
R the doors
R the trunk lid
R the stowage compartmen tint he cent ercon-
sole
R the fuel filler flap
The turn signals flashonce when unlocking
and three times whenlocking.
You canalso setanaudib lesignal toconfirm
that thevehicle hasbeen locked. Theaudib le
signal canbeactivated anddeactivated using
the on-board computer (Ypage 179).
When itis dark, thesurround lightingalso
comes onifit is activated inthe on-board
computer (Ypage 178). KEY
LESS-GO
General notes Bear
inmind thattheengine canbestarted by
any ofthe vehicle occupants ifthere isaK EY-
LES S-GO keyinthe vehicle (Ypage 120). 66
Smar
tKeyOpening andclosing

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low.
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 260).
or
X Jump-start thevehicle (Ypage 261).
or
X Consult aquali fied specialist workshop. The
engine cannot be
started usingKEYLE SS-
GO. TheSmartK eyisin
the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataq ualified specialist work-
shop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. The
side windows can-
not beopened orclosed
using theconven ience
opening/c losingfea-
ture. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 69)and replace itifneces-
sary (Ypage 69). Doo
rs Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment Additionally,
childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isar isk ofan accident andinjury. Doo
rs
71Opening andclosing
Z

In
vehicle swithautoma tictransmission,
engage positionsPa nd Ro nly when the
vehicle isstationary .
Where possible,avoid spinning thedrive
wheel swhen pulling awayonslippery roads.
You could otherwise damagethe drive train. Key
positio ns
Smart Key 005A
Toremove theSmartKey
0047 Power supplyfor some consumers, such
as the windshi eldwipers
0048 Ignition (powersupp lyfor allconsumers)
and drive positio n
0049 Tostart theengine
i The
SmartKey canbeturned inthe ignition
lock even ifit is not thecorrect SmartKey
for the vehicle .The ignition isnot switched
on. The engine cannot bestarted.
KEY LESS-GO Gene
ralnotes
Vehicle swithKEYLESS- GOare equi pped with
aS martKey featuringanintegrated KEYLESS-
GO start function andadetachab leStart/St op
button.
The Start/St opbutton mustbeinserted inthe
ignition lockandtheSmartKey mustbeinthe
vehicle .
When youinsert theStart/St opbutton into
the ignition lock,thesystem needsapprox-
imatel ytwo seconds recognition time.Youcan
then usetheStart/St opbutton.
Pressing theStart/St opbutton several times
in successio ncorresponds tothe different keypositio
nsinthe ignition lock.Thisisonly the
case ifyou arenot depres singthebrake pedal.
If you depres sthe brake pedaland press the
Start/St opbutton, theengine startsimmedi -
ately .
Ac heck which periodicallyestabl ishes aradi o
connection betweenthe vehicle andthe
SmartKey determines whetheravalidS mart-
Key isin the vehicle .This occurs, forexample ,
when starting theengine.
To start thevehicle withoutactively usingthe
SmartKey:
R the Start/St opbutton mustbeinserted in
the ignition lock.
R the SmartKey mustbeinthe vehicle .
R the vehicle mustnotbelocked withthe
SmartKey orKEYLESS- GO(Ypage 66).
Do not keep theSmartKey:
R with electronic devices,e.g.amobilephone
or another SmartKey.
R with metall icobjects, e.g.coins ormetal
foil.
R inside metallicobjects, e.g.ametal case.
This canimpa irthe functionality ofthe KEY-
LESS- GOkey.
If you lock thevehicle withtheSmartKey's
remote controlorwith KEYLESS- GO,after a
short time:
R you willnot be abletos witch onthe ignition
with theStart/St opbutton.
R you willnot be abletos tart theengine with
the Start/St opbutton untilthevehicle is
unlocked again.
The engine canbeswitched offwhil ethe vehi-
cle isin motion bypressing andholdi ngthe
Start/St opbutton forthree seconds. This
function operatesindepe ndently ofthe ECO
start/stop automaticengine switch-off func-
tion. 118
Drivi
ngDrivi ngand parking

starts
automatically andthebraking effectof
the HOLD function isdeactivated.
Automatic enginestart The
engine startsautomatically if:
R you switch offthe ECO start/st opfunction
by pressing theECO button
R you release thebrake pedalintransmission
position 005Bor005C and theHOLD function is
not active
R you depress theaccelerator pedal
R you engage reverse gear005E
R you move thetransmission outofposition
005D
R you switch todrive program S+
R you unfasten yourseatbeltoropen thedriv-
er's door
R the vehicle startstoroll
R the brake system requires this
R the temperature inthe vehicle interior devi-
ates from thesetrange
R the system detects moisture onthe wind-
shield whentheair-conditioning systemis
switched on
R the battery's condition ofcharge istoo low Shifting
thetransmission toposition 005Ddoes
not start theengine.
Deac tivating oractivating theECO
start /stop function X
To deactivate: pressECObutton 0043.
Indicator lamp0044goes out.
X To activate: pressECObutton 0043.
Indicator lamp0044lights up.
If indicator lamp0044isoff, theECO start/st op
function hasbeen deactivated manuallyoras
the result ofam alfunction. Theengine will
then notbeswitched offautomaticall ywhen
the vehicle stops. 122
DrivingDriving
andparking

The
temporary settingisactive foracertain
amount oftime. Under certaincondit ions,the
minimum amountoftime isexten ded,e.g.in
the case oflateral acceleration ,during overrun
mode orwhen driving onsteep terrain.
X To deactivat e:pull steerin gwheel paddle
shifter 0044and hold itin place.
or X Use thelever toswitch thetrans mission
position.
or X Use theDYNA MICSELECT button tochange
the drive program.
Perma nentsetting X
To activat e:shift theselector leverto005B.
X Press button 0043.
X To deactivat e:press button 0043.
Shifting gears All
vehicles (exceptforMercedes-AMG
SLC 43) X
To shift up:pull steerin gwheel paddle
shifter 0044.
The automatic transmission shiftsuptothe
next gear.
If the maximum enginespeedinthe cur-
rent lyengaged gearisreached andyoucon-
tinue toaccelerate, theautomatic transmis-
sion automatically shiftsupinorder topre-
vent engine damage.
X To shift down: pullsteerin gwheel paddle
shifter 0043.
The automatic transmission shiftsdownto
the next gear.
Automat icdown shiftin goccurs whencoast-
ing.
If the engine weretoexceed themaximum
engine speedwhenshiftin gdown, theauto-
matic transmission protectsagainst engine
damage bynot shiftin gdown.
Mercedes-AMG SLC43
! If
manual gearshifting ispermanent lyacti-
vated, theautomatic transmission doesnot
shift upautomatically evenwhen theengine
limiting speedforthe current gearis
reached. Whentheengine limiting speedis
reached, thefuel supply iscut toprevent
the engine fromoverrevv ing.Always make
sure thattheengine speeddoesnotreach
the red area ofthe tachomet er.There isoth-
erwise arisk ofengine damage. X
To shift up:pull steerin gwheel paddle
shifter 0044.
The automatic transmission shiftsuptothe
next gear.
X To shift down: pullsteerin gwheel paddle
shifter 0043.
The automatic transmission shiftsdownto
the next gear. 130
Automa
tictransmissionDriving andparking

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 isar isk 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 isam alfunct 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 isam alfunct 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 garenormal. Par
king
135Driving andparking Z

Mercedes-Ben
zrecommen dsthat youonly
have brake pads/linings installedonyour vehi-
cle which havebeen approved forMercedes-
Benz vehicles orwhich correspond toan
equival entqual itystandard. Brakepads/
linings whichhavenotbeen approved for
Mercedes-Ben zvehicles orwhich arenot ofan
equival entqual itycould affect yourvehicle's
operating safety.
Mercedes-Ben zrecommen dsthat youonly use
brake fluidthathasbeen specially approved
for your vehicle byMercedes-Ben z,or which
corresponds toan equival entqual itystandard.
Brake fluidwhich hasnotbeen approved for
Mercedes-Ben zvehicles orwhich isnot ofan
equival entqual itycould affect yourvehicle's
operating safety.
High-perf ormance brakesystem
(exce ptMercedes-AMG SLC43) AMG
brake systems aredesigned forheavy
loads andhave componen tswith correspond-
ing properties. Thismay lead tonoise when
braking. Thiswilldepend on:
R Speed
R Braking force
R Ambient condition s,e.g. temperature and
humidity
The wear ofindividual componen tsof the
brake system, suchasthe brake pads/linings
or brake discs, depends onthe individual driv-
ing style andoperating conditions.
For this reason, itis impossible tostate amile-
age that willbevalid under allcircumstan ces.
An aggressive drivingstylewilllead tohigh
wear. Youcanobtain moreinformation onthis
from aqualified specialist workshop.
New andreplaced brakepadsanddiscs only
reach theiroptimum brakingeffectaftersev-
eral hundred kilometers ofdriving. Compen-
sate forthis byapply inggreater forcetothe
brake pedal. Keepthisinmind, andadapt your
driving andbraking accordingly duringthis
break-in period.
Exc essive heavybraking resultsincorrespond-
ingly highbrake wear.Observe thebrake sys-
tem warning lampinthe instrumen tcluster
and note anybrake status messages inthe
multifunction display.Especially forhigh per-
formance driving,itis important tomaintain
and have thebrake system checkedregularly . Driving
onwet roads
Hydr oplaning If
water hasaccumulated toac ertain depthon
the road surface, thereisad anger ofhydro-
planing occurring.
For this reason, inthe event ofheavy rainorin
condition sinw hich hydropla ningmayoccur,
you must driveinthe following manner:
R lower yourspeed
R avoid ruts
R avoid sudden steering movement s
R brake carefully
Driving onflooded roads !
Do
not drive through floodedareas.Check
the depth ofany water before driving
through it.Drive slowly through standing
water. Otherwise, watercouldenterthe
vehicle interior orengine compartmen t.It
can then damage theengine's orautomatic
transmission' selectronic componen ts.It
can also besucked inby the engine's air
intake connection andcause engine dam-
age. Winter
driving G
WARNING
If you shift down onaslippery roadsurface
in an attempt toincrease theengine's brak-
ing effect ,the drive wheels couldlosetheir
grip. There isan increased dangerofskid-
ding andaccidents.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface. G
DANGER
If the exhaust pipeisblocked oradequ ate
ventilation isnot possible, poisonous gases
such ascarbon monoxide (CO)mayenter
the vehicle. Thisisthe case, e.g.ifthe vehi-
cle becomes trappedinsnow. Thereisar isk
of fatal injury.
If you leave theengine orthe auxilia ryheat-
ing running, makesuretheexhaust pipeand
area around thevehicle areclear ofsnow. Driving
tips
141Driving andparking
Z

Use
Parking Guidance forparking spaces:
R paral leltothe direction oftravel
R on straight roads,notbends
R that areonthe same levelasthe road, i.e.
not onthe pavement, forexample. Parking
Assist PARKTRONIC maynotdetect flat
curbs
Parking tips:
R on narrow roads,driveasclosely aspossible
past theparking space
R parking spacesthatarelittered orover-
grown mightbeidentified ormeasured
incorrect ly
R parking spacesthatarepartiall yoccupied
by trailer drawba rsmight notbeidentified
as such orbe measured incorrectly
R snowfall orheavy rainmay lead toap arking
space beingmeasured inaccurately
R pay attent iontothe Parking Assist
PARKTRONIC warningmessages duringthe
parking procedure (Ypage 155)
R when transporting aload which protrudes
from yourvehicle, youshould notuse Park-
ing Guidance
R never useParking Guidance withsnow
chains oran emergency sparewheel moun-
ted
R make surethatthetire pressures arealwa ys
correct .This has adirect effect onthe steer-
ing characteristics.
R the way your vehicle ispositioned inthe
parking spaceafterparking isdependent on
various factors. Theseinclude theposition
and shape ofthe vehicles parkedinfront
and behind itand theconditions ofthe loca-
tion. Insome cases, Parking Guidance may
guide youtoofarornot farenough intoa
parking space.Insome cases, itmay also
lead youacross oronto thecurb. Ifneces-
sary, cancel theparking procedure with
Parking Guidance. Detec
tingparking spaces 0043
Detect edparking spaceonthe left
0044 Parking symbol
0087 Detect edparking spaceonthe right
Parking Guidance isautomaticall yactivated
when youdrive forwards. Thesystem isopera-
tional atspeeds ofup toapproximately
22 mph (35km/h ).While inoperation, the
system independently locatesandmeasures
parking spacesonboth sides ofthe vehicle.
When driving atspeeds below19mph
(30 km/h), youwillsee parking symbol0044as
as tatus indicator inthe instrument cluster.
When aparking spacehasbeen detected, an
arrow towards theright 0087orthe left 0043also
appea rs.Parking Guidance onlydispla yspark-
ing spaces onthe front -passenger sideas
standard. Parkingspacesonthe driver's side
are displa yedassoon asthe turn signal onthe
driver's sideisactivated. Topark onthe driv-
er's side, youmust leave thedriver's sideturn
signal switched onuntil youhave engaged
reverse gear.
Parking Guidance willonly detect parking
spaces:
R that areparal leltothe direction oftravel
R that areatleast 5ft(1.5 m)wide
R that areatleast 4.3ft(1.3 m)longer than
your vehicle
Ap arking spaceisdispla yedwhile youare
driving pastit,and until youareapproximately
50 ft(15 m)awa yfrom it.
Parking Moving
thevehicl einto thestop position
X Stop thevehicle whentheparking space
symbol showsthedesired parking spacein
the instrument cluster.
X Vehicles withmanual transmission: shiftto
reverse gear. 158
Driving
systemsDriving andparking