2018 MERCEDES-BENZ SLC ROADSTER ignition

USA only
:Sets the temperature, left (Ypage 109)
;Defrosts the windshield(Ypage 110)
=Switches the maximum cooling MAX COOL on or off (Ypage 111)
?Switches cooling with air dehumidification on/off (Ypage 108)
ASwitches the rear window defroster on/off (Ypage 111)
BSets the temperature, right (Ypage 109)
CSwitches air-recirculation mode on/off (Ypage 112)
DSets the air distribution (Ypage 110)
EIncreases the airflow (Ypage 110)
FReduces the airflow (Ypage 110)
GActivates/deactivates climate control (Ypage 108)
HSets climate control to automatic (Ypage 109)
Optimumuse of dual-zone automatic
climate control
Climate control system
The following contains instructionsa nd recom-
mendations to enable you to get the most out of
your 3-zonea utomatic climate control.
RActivate climate control using the Ãand
¿ buttons or the Ábutton on the con-
trol panel of the climate control. The indicator
lamps in the Ãand¿ buttons or the
Á button light up.
RSet the temperature to 72 ‡(22 †).
ROnly use the "Windshield defrosting" function
briefly until the windshieldisc lear again.
ROnly use air-recirculation mode briefly,e .g. if
there are unpleasant outside odors or when in
at unnel. The windows could otherwise fog up, since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well.T
he indicator
lamp in the ábutton goes out.
RUse the residualh eat function if you want to
heat or ventilate the vehicle interior when the
ignition is switched off. The residualh eat
function can only be activated or deactivated
with the ignition switched off.
RVehicles with COMAND: if you change the
settings of the climate control system, the
climate status displaya ppears for three sec-
onds at the bottom of the screen in the
COMAND display. You will see the current
settings of the various climate control func-
tions.
Overview of climatec ontrol systems107
Climatecontrol

iIf you activate the residual heat function at
high temperatures, only the ventilation willb e
activated. The blower runs at mediums peed.
XTo deactivate:press theÌorÁ but-
ton.
The indicator lamp in the ÌorÁ button
goes out.
Residualh eat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Setting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could resultinb urns or frostbite in
the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain asufficient distance to the air out-
lets. If necessary,r edirect the airflow to
another area of the vehicle interior.
GWARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints. This could resultinb urns in the immediate
vicinity of the air vents. There is arisk of injury.
Reduce the heater outputb efore it becomes
too hot.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet grilleont he hood and in the
engine compartment on the front-passenger
side free of blockages, such as ice, snow or
leaves.
Rnever cover the air vents or air intake grilles in
the vehicle interior.
iYou can move the adjusters for the air vents
verticallyorh orizontally to set the direction of
the airflow.
iFor optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents
XTo open the center air vents: turn the
adjuster in one of center air vents :counter-
clockwise.
XTo close the center air vents: turn the
adjuster in one of center air vents :clock-
wise until it engages.
Setting the side air vents
:Side window defroster vent
;Side air vent
XTo open aside air vent: turn the adjuster in
the side air vent ;to the left.
XTo close aside air vent: turn the adjuster in
the side air vent ;to the right until it
engages.
Setting the air vents113
Climate control
Z

Notesonb reaking-in anew vehicle
Important safety notes
Thes ensors ystemofs omedriving and driving
safety systems adjusts automaticall ywhile a
certai ndistance is being driven after the vehicle
ha sb eend elivere dorafter repairs. Full system
effectiveness is not reachedu ntilthe end of this
teach-inp rocedure.
New and replaced brake pads and discs only
reach their optimum braking effect after several hundred kilometers of driving. Compensate for
thi sb yapplyin ggreate rforce to the brake pedal.
The first 1000 miles (150 0km)
Them orey ou look after the engine when it is
new ,the mor esatisfied yo uwillbew ithi ts per-
formance in the future.
RYo us houl dtherefore drive at varying vehicle
and engine speeds for the first 1,000 miles
(1,500 km).
RAvoi dheavy loads, e.g .driving at full throttle,
during thi speriod.
RChang egearing oodt ime, befor ethe tach-
ometer needl eisÔ of the wa ytothe red area
of the tachometer.
RDo not manuall yshift to alower gear to brake
the vehicle.
RTry to avoi ddepressing the accelerator pedal
beyond the point of resistanc e(kickdown).
After 1000 mile s(1500 km),y oucan increase
the engine spee dgradually and accelerate the
vehicl etofulls peed.
Yo us houl dalsoo bser ve these note sonbreak-
ing in if the engine or parts of the drive train on
your vehicl ehaveb eenr eplaced.
Alway sobser ve the maximum permissible
speed.
Driving
Important safety notes
GWARNING
Objects in the driver's footwell mayr estrict
the clearanc earound the pedals or block a
depresse dpedal. This jeopardizes the oper-
ating and roa dsafety of the vehicle. There is a
risk of an accident.
Stow al lobjects securel yinthe vehicl esothat
the ydon ot getinto the driver's footwell.
When using floormats or carpets, make sure
tha tthe ya reproperlys ecured so tha tthe yd o
not slip or obstruct the pedals .Donot place
several floormats or carpets on top of one
another.
GWARNING
Unsuitabl efootwear can hinde rcorrec tusage
of the pedals ,e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is ariskofana ccident.
Wear suitabl efootwear to ensur ecorrect
usag eoft he pedals.
GWARNING
If yo uswitch off the ignition whil edriving,
safety-relevant functions ar eonlya vailable
with limitations ,ornot at all. This could affect,
for example, the powe rsteering and the brake
boosting effect. Yo uwillr equire considerably
mor eeffort to steer and brake. There is arisk
of an accident.
Do not switch off the ignition whil edriving.
GWARNING
If the parking brake ha snot been fully
releasedw hend riving, the parking brake can:
Roverheat and cause afire
Rlose its hold function.
There is ariskoff irea nd an accident. Release
the parking brake full ybefor ed riving off.
!Do not warm up the engine whil estationary.
Pull away immediately. Avoi dhighe ngine
speeds and full throttle unti lthe engine has
reachedi ts operating temperature.
In vehicles with automatic transmission,
engag eposit ions Pand Ro nlyw hent he vehi-
cle is stationary.
Driving115
Dr iving an dparking
Z

Where possible, avoid spinningthe drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
Key positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
KEYLESS-GO
General notes
Vehicles with KEYLESS-GO are equipped with a
SmartKey featuring an integrated KEYLESS-GO
start function and adetachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the differentk ey
positions in the ignition lock. This is only the
case if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button
,the engine start simmedi-
ately.
Ac heck which periodically establishes aradio
connection between the vehicle and the Smart-
Key determines whether avalid SmartKey is in
the vehicle. This occurs,f or example, when
starting the engine.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO (Ypage 65).
Do not keep the SmartKey:
Rwith electronic devices, e.g. amobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. ametal case.
This can impair the functionality of the KEY-
LESS-GO key.
If you lock the vehicle with the SmartKey's
remotec ontrol or with KEYLESS-GO, after a
short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will not be able to start the engine with the
Start/Stop button until the vehicle is
unlocked again.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with KEYLESS-GO
:Start/Stop button
;Ignition lock
116Driving
Driving and parking

As soonasthe ignition is switched on, al lthe
indicator lamps in the instrument cluster light
up .Further informatio nonsituations where an
indicator lamp either fails to go outa fterstarting
the engine or lights up whil edriving
(
Ypage 204).
If Start/Stop button :hasn ot yetbeen
pressed, thisc orrespondstot he key being
removedf rom the ignition.
XTo switchonthe power supply: press
Start/Stop button :once.
The powe rsuppl yiss witched on. Yo ucan now
activate the windshield wipers, for example.
The powe rsuppl yiss witched off agai nif:
Rthe driver's door is opene dand
Ryoup ress Start/Stop button :twice when
in thisp osition
XTo switc honthe ignition: press Start/Stop
button :twice.
The ignition is switched on.
If yo upress Start/Stop button :once when
in thisp osition, the ignition is switched off
again.
Removing the Start/Stopb utton
Youc an remove the Start/Stop button from the
ignition lock and start the vehicl easnormal
using the SmartKey.
XRemove Start/Stop button :from ignition
lock ;.
Yo udon ot have to remove the Start/Stop but-
ton from the ignition lock when yo uleave the
vehicle. Yo ushould, however, always take the
SmartKeyw ithy ou when leaving the vehicle. As
long as the Sma rtKey
isint
he vehicle:
Rthe vehiclecan be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Starting the engine
Important safety notes
GWARNING
If children ar eleftu nsupervised in the vehicle,
they could:
Roperate the vehicle's equipment.
Additionally, children could set the vehicl ein
motion if, for example, they:
Rrelease the parking brake
Rshift the automatic transmission outofp ark
position P
Rstart the engine
There is ariskofana ccident and injury.
Never leav echildren or animals unattended in
the vehicle.
Whe nleavi ng the vehicle, always take the
SmartKeyw ithy ou and lock the vehicle. This
also applie stomobilephones if the "Digital
Ca rK ey in smartphone"f unctio nisa ctivated
via the Mercedes me connect we bapp.
GWARNING
Combustion engine semitp oiso nousexhaust
gases such as carbo nmonoxide. Inhaling
thes eexhaus tgases lead stopoisoning. There
is ar iskoff atalinjury.T herefore neve rleave
the engine running in enclose dspaces with-
outs ufficient ventilation.
GWARNING
Flammabl ematerial sintroduced through
environmentali nfluence or by animals can
ignite if in contact with the exhaus tsystem or
parts of the engine thath eatu p.There is arisk
of fire.
Carry outr egular checks to make sure that
ther eareno flammabl eforeig nmaterial sin
the engine compartment or in the exhaust
system.
During acolds tart, the engine runs at higher
speed stoenablethe catalytic converter to
reach its operating temperature .The sound of
the engine mayc hange during thist ime.
Automatictransmission
XDepres sthe brake peda land kee pit
depressed.
XShift the transmission to position j.
Transmission positio ndisplay jis shown in
the multifunctio ndisplay.
Driving117
Driving an dparking
Z

iYou can startthe engin eintransmission
position jand i.
Starting procedur ewith th eSmartKey
To star tthe engin eusing the SmartKey instead
of KEYLESS-GO, pull the Start/Stop button out
of the ignition lock.
XTurn the SmartKey to position 3in the igni-
tion lock (Ypage 116)a nd release it as soon
as the engin eisrunning.
Using KEYLESS-GO to start th eengine
The Start/Stop button can be used to star tthe
vehicle manually without insertin gthe SmartKey
int ot he ignition lock .The Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for
startin gthe engin eoperates independently of
the ECO start/sto pautomatic engin estar tfunc-
tion.
XDepress the brakep edal and keep it
depressed.
XPress the Start/Stop button once
(Ypage 116).
The engin estarts.
Pulling away
Genera lnotes
GWARNING
If the engin espeed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is
ar isk of an accident.
When engagin gtransmission position Dor R,
always firmly depresst he brakepedal and do
not simultaneously accelerate.
!Change gear in good tim eand avoid spin-
nin gthe wheels. You could otherwise damage
the vehicle.
Depress the accelerator carefully when pulling
away.
The vehicle lock scentrally onc eyou have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time. You can also deactivate the automatic locking
feature (
Ypage 173).
It is only possible to shift the transmission from
position jto the desired position if you
depresst he brakep edal. Only the nisthe shift
lock released.
iUpshifts tak eplace at higher engin espeeds
afte rac old start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake(
Ypage 133).
Hill start assist
Hill star tassist helps you when pulling away
forwardorinr everse on an uphill gradient. It
holds the vehicle for ashortt imea fteryou have
removed your foot from the brakep edal. This
gives you enough tim etomove your foot from
the brakep edal to the accelerator pedal and to
depressitb eforethe vehicle begins to roll.
GWARNING
After ashortt ime, hill star tassist will no lon-
ger brakey our vehicle and it could roll away.
There is arisk of an accident and injury.
Therefore, quickly move your foot from the
brakep edal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill star tassist is not active if:
Ryou are pulling away on alevel road or on a
downhill gradient
Rthe transmission is in position i
Rthe electric parking brakeisapplied
RESP®is malfunctioning
ECO start/stop function
Introduction
The ECO start/sto pfunction switches the
engin eoff automatically if the vehicle is stopped
under certain conditions.
The engin estarts automatically when the driver
want stop ull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
118Driving
Driving and parking

Deactivating or activating theECO
start/stop functionXTo deactivate :press EC Obutto n:.
Indicator lamp ;goe sout.
XTo activate :press EC Obutto n:.
Indicator lamp ;lights up.
If indicator lamp ;is off, th eECO start/sto p
function has bee ndeactivated manually or as
th er esult of amalfunction .The engin ewill then
no tbes witched of fautomatically when th evehi-
cl es tops .
Problem switht he engin e
ProblemPossible causes/consequences an dMSolutions
The engin edoesn ot
start .The HOLD function or Distanc ePilotD ISTR ONIC is activated.
XDeactivat ethe HOLD function (Ypage 148) or Distanc ePilot
DISTRONIC (Ypage 146).
XTryt os tart th eenginea gain .
The engin edoesn ot
start .The starter moto r
can be heard.RThere is amalfunction in th eenginee lectronics.
RThere is amalfunction in th efuelsupply.
Before attemptin gtostart th eenginea gain :
XTurnthe SmartKey bac ktoposition uin th eignition lock.
or
XPress th eStart/Sto pbutto nrepeatedly until all indicator lamp sin
th ei nstrument cluster go out .
XTryt os tart th eenginea gain (Ypage 117). Avoid excessivel ylon g
and frequent attempt stostart th eengineast hese will drain th e
battery.
If th eengined oesn otstart after severa lattempts:
XConsult aqualified specialis tworkshop .
The engin edoesn ot
start .You canno thear
th es tarter motor.The on-boar dvoltag eistoolow because th ebattery is to oweak or
discharged.
XJump-start th evehicle (Ypage 253).
If th eengined oesn otstart despit eattempts to jump-start it :
XConsultaqualified specialis tworkshop .
The starter moto rwas exposed to athermal load that was to ohigh.
XAllow th estarter moto rtocooldown fo rapproximately tw ominutes.
XTryt os tart th eenginea gain .
If th eengines till doe snotstart :
XConsult aqualified specialis tworkshop .
120Driving
Driving an dpark ing

The current transmission position and drive pro-
gram appear in the multifunction display.
Mercedes-AMG SLC 43
:Transmission position
;Drive program
The current transmission position and drive pro-
gram appear in the multifunction display.
Engaging parkp osition P
XWhen the vehicle is stationary, depress the
brake pedal.
XPress button:.
Engaging parkp ositionPautomatically
Park position jis automatically engaged if:
Ryou switch off the engine using the SmartKey
and remove the SmartKey
Ryou switch off the engine using the SmartKey
or using the Start/Stop button and open the
driver's door or front-passenger door
Ryou open the driver's door when the vehicle is
stationary or when driving at avery low speed
and the transmission is in position hork
Under certain conditions, the automatic trans-
mission shifts automatically to transmission
position jif the HOLD function or Distance
Pilot DISTRONIC is activated. Observe the infor-
mation on the HOLD function (
Ypage 148) and
on Distance Pilot DISTRONIC (Ypage 144).
Engaging reverse gear R
!Only move the automatic transmission to
k when the vehicle is stationary.
XDepress the brake and keep it pressed.
XPush the selector lever forwards past the first
point of resistance.
The ECO start/sto pfunction is not available
when reverse gear is engaged. Further informa-
tion on the ECO start/sto pfunction
(
Ypage 119).
Shifting to neutral N
GWARNING
If children are left unsupervised in the vehicle,
they could:
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake
Rshift the automatic transmission out of park
position P
Rstart the engine
There is arisk of an accident and injury.
Never leave children or animals unattended in
the vehicle.
When leaving the vehicle, alwayst ake the
SmartKey with you and lock the vehicle. This
also applies to mobile phones if the "Digital
Car Key in smartphone" function is activated
via the Mercedes me connect web app.
XWhen the vehicle is stationary, depress the
brake pedal.
XPush the selector lever forwards or back to
the first point of resistance.
If you switch the engine off with the transmis-
sion in position korh,t he automatic trans-
mission shifts to iautomatically.
With the SmartKey: if you then open the driv-
er's door or the front-passenger door or remove
the SmartKey from the ignition, the automatic
transmission shifts to jautomatically.
With KEYLESS-GO: if you then open the driver's
or front-passenger door, the automatic trans-
mission shifts to jautomatically.
Automatic transmission123
Driving and parking
Z