2018 MERCEDES-BENZ SLC ROADSTER start stop button

If somebodybecomes trapped:
Rpress one of the memory function position
buttons, or
Rpress one of the memory function memory
buttons, or
Rmove the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you use openings in the bodywork or
detachable parts as steps, you could:
Rslip and/or fall
Rdamage the vehicle and cause yourself to
fall.
There is arisk of injury.
Alway suse secure climbing aids, e.g. asuita-
ble ladder.
The EASY-ENTRY/EXIT feature makes getting in
and out of you rvehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 174).
Position of the steering whee lwhen the
EASY-ENTRY/EXIT feature is active
The steering wheel swings up when you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO in
position 1
Ropen the driver's door and the SmartKey is in
position uor1
iThe steering wheel moves upwards only if it
has not already reached the uppers teering
limiter.
Position of the steering whee lfor driv-
ing
The steering wheel is moved to the last selected
positionw hen:
Rthe driver's door is closed
Ryou insert the SmartKey into the ignition lock or
Ryou press the Start/Stop button once on vehi-
cles with KEYLESS-GO
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi-
tion.
The last positionoft he steering column is stored
when you switch off the ignition or when you
store the setting with the memory function
(
Ypage 93).
Crash-responsive EASY-EXIT feature
If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened.
This occurs irrespective of the positionoft he
SmartKey in the ignition lock. This makes it eas- ier to exit the vehicle and rescue the occupants.
The crash-responsive EASY-EXIT feature is only
operational if the EASY-EXIT/ENTRY feature is
activated in the on-board computer
(
Ypage 174).
Mirrors
Rear-view mirror
XAnti-glare mode: flick anti-glare lever :for-
ward sorb ack.
90Mirrors
Seats, steeringw heel and mirrors

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield wiper
movement.The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the igni-
tion lock.
or
XSwitch off the engine using the Start/Stop button and open the
driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at aqualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at aqualified specialist workshop.
Windshield wipers103
Lights and windshieldw ipers
Z

USA only
:Sets the temperature (Ypage 109)
;Switches the maximum cooling MAX COOL on or off (Ypage 111)
=Sets the air distribution (Ypage 110)
?Defrosts the windshield(Ypage 110)
ASwitches cooling with air dehumidification on/off (Ypage 108)
BSwitches air-recirculation mode on/off (Ypage 112)
CSets the airflow (Ypage 110)
DSwitches the rear window defroster on/off (Ypage 111)
Notes on using the air-conditioning
system
Air-conditioning system
Below, you can find anumber of notes and rec-
ommendations to help you use the air-condi-
tioning system optimally.
RSwitch on cooling with air dehumidification
using the ¿button. The indicator lamp in
the ¿ button lights up.
RSet the temperature to 72 ‡(22 †).
RRecommendation for air distribution in
winter: set theOand¯ settings.
Recommendation for air distribution in
summer: set thePsetting.
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.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at areduced capa-
city. If you require full climate control capacity,
the ECO start/stop function can be deactivated by pressing the ECO button (
Ypage 120).
Overview of climatec ontrol systems105
Climatecontrol

ECO start/stop function
During automatic engine switch-off,the climate
control system only operate satareduced capa-
city. If you require full climate control capacity,
th eE CO start/sto pfunction can be deactivated
by pressingt heECO button (
Ypage 120).
Operating th eclimat econtrol sys-
tems
Activating/deactivatin gclimat econ-
trol
General notes
When th eclimate control is switched off ,the air
supply and air circulation are also switched off.
The windows coul dfog up. Therefore, switch off
climate control only briefly
iActivate climate control primarily usingt he
à button(Ypage 109).
Air-conditioning system
XTurn th eSmartKey to position 2in th eigni-
tio nlock(Ypage 116).
XTo switch on: turna irflow control Cclock-
wise to th edesired position (excep tposition
0)(
Ypage 104).
XTo switch off: turna irflow control Ccoun-
ter-clockwise to position 0(Ypage 104).
3-zone automatic climat econtrol
XTurn th eSmartKey to position 2in th eigni-
tio nlock(Ypage 116).
XTo switch on: pressthe à button.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out.T he previously selecte dsettings are
restored.
XTo switch off: pressthe ^ button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate th e"Coolingw ith air-dehumid-
ification" function,t heair inside th evehicle will
no tbec ooled. The air inside th evehicle will also
no tbed ehumidified. The windows can fog up
mor equickly. Therefore, deactivate th ecooling
with air-dehumidification function only briefly.
The "Coolingw ith air dehumidification"f unction
is only availabl ewhen th eengine is running. The
air inside th evehicle is cooled and dehumidified
according to th etem peratur eselected.
Condensation may drip from th eundersid eof
th ev ehicle when it is in cooling mode. This is
normal and no tasign that there is amalfunc-
tion.
Activating/deactivating
XTo activate: pressthe ¿ orÁ button.
The indicator lamp in the ¿orÁ button
lightsu p.
XTo deactivate: pressthe ¿ orÁ but-
ton.
The indicator lamp in the ¿orÁ button
goes out.T he "Coolingw ith air dehumidifica-
tion" function has adelayed switch-off fea-
ture.
108Operating th eclimate control systems
Climate control

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

Important safety notes
GWARNING
If th eengineiss witched off automatically and
you exit th evehicle, th eengineisr estarte d
automatically. The vehicl emay begi nmoving .
Ther eisar iskofa cciden tand injury.
If you wish to exit th evehicle, always tur noff
th ei gnition and secure th evehicl eagainst
rollin gaway.
General notes
:ECO start/sto pdisplay
The ECO start/sto pfunction is activated when -
eve ryou switch on th eengineu singthe Smart -
Key or th eStart/Sto pbutton.
If th eengineh as been switched off automati-
call ybyt heECO start/sto pfunction ,the è
ECO symbol is shown in th emultifunction dis-
play.
Automati cengines witch-off
If thevehicl eisb raked to astandstill wit hthe
transmission in hori,t heECO start/sto p
function switches off th eenginea utomatically.
The ECO start/sto pfunction is operational
when :
Rthei ndicator lamp in th eECO butto nislit
green
Rth eo utside temperature is within th erange
that is suitable for th esystem
Rthee ngineisatn ormaloperating temperature
Rthes et temperature for th evehicl einterior
has been reached
Rth eb attery is sufficientl ycharge d
Rthes ystem detects that th ewindshield is no t
fogged up when th eair-conditioning system is
switched on
Rth eh oodisc losed
Rthed river' sdoor is closed and th edriver' s
seat belt is fastene d All of th
evehicle's systems remain active when
th ee ngineiss toppe dautomatically.
Automatic engin eswitch-off can tak eplacea
maximum of four times in arow (initial stop, then
three subsequen tstops).
The HOLD function can be activated if th e
engin ehas been switched off automatically. It is
then no tneces sarytoc ontin ue applyin gthe
brakes during th eautomatic stop phase. When
you depress th eaccelerato rpedal ,the engin e
start sautomatically and th ebraking effec tof
th eH OLDf unction is deactivated.
Automati cengines tart
The engin estartsa utomatically if:
Ryou switch off th eECO start/sto pfunction by
pressin gthe ECO butto n
Ryou release th ebrak epedal in transmission
position hori and th eHOLDf unction is
no ta ctive
Ryou depress th eaccelerato rpedal
Ryou engage revers egear k
Ryou mov ethe transmission out of position j
Ryou switch to driveprogram S+
Ryou unfasten your seat belt or open th edriv-
er' sd oor
Rthev ehicl estartstor oll
Rth eb rak esystem require sthis
Rth et em perature in th evehicl einterior devi-
ate sfromt heset range
Rthes ystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth eb attery's condition of charge is to olow
Shifting th etransmission to position jdoes
no tstart th eengine.
Driving119
Driving and parking
Z