2018 MERCEDES-BENZ SLC ROADSTER clock

XTo deactivate:press and holdbutton :for
aboutf ives econds unti latone sounds.
XTo activate: press and hol dbutton ;for
aboutf ives econds unti latone sounds.
If yo upress one of the two buttons and do not
hea rat one, the relevant setting hasa lready
been selected.
The vehicl eislocked automaticall ywhent he
ignition is switched on and the wheels are turn-
ing.
Yo uc ould therefore lock yoursel fout if:
Rthe vehicl eisbeing pushed.
Rthe vehicl eisbeing towed.
Rthe vehicl eisonar ollerdynamometer.
Yo uc an also switch the automatic locking func-
tio nona nd off using the on-board computer
(
Ypage 173).
Unlocking/lockin gthe driver's door
using the mechanical key
i
If yo uwanttoc entrall yloc kthe vehicl eusing
the mechanical key,b eginby pressing the
locking button for the interio rloc king mech-
anism whil ethe driver's door is open. Then
lock the driver's door using the mechanical
key.
XTo unlock: turn the mechanical key counter-
clockwise as far as it will go to position 1.
XTo lock:turn the mechanical key clockwise as
far as it will go to position 1.
If yo uusethe mechanical key to unlock and
open the driver's door, the anti-thef talarm sys-
tem will be triggered .Switch off the alarm
(
Ypage 64).
Trunk
Important safety notes
GWARNING
If objects, luggage or load sare not secured or
not secured sufficiently ,they could slip ,tip
overorbef lung around and thereb yhitvehicle
occupants. There is ariskofi njury,p articu-
larly in the event of sudden braking or asud-
de nc hange in direction.
Alway sstoreo bjects so thatt hey cannotbe
flung around .Secure objects, luggage or
load sagain st slipping or tipping before the
journey.
!The trunk li dswing su pwar ds when opened.
Therefore, make sure thatt hereiss ufficient
clearance above the trunk lid.
!Onlyc lose the trunk once the roofisl owered
completely. Otherwise, yo ucould damag ethe
roof.
If yo uclose the trunk li dbefore the roofi s
lowered completely, the loading ai dswitch
lights up and awarning tone sounds.
The opening dimensions of the trunk li dcan be
found in the "Vehicle data" section
(
Ypage 295).
Do not leave the SmartKey in the trunk. You
could otherwise lock yoursel fout.
The trunk li dcan be:
Ropened/closedf rom outside
Ropenedautomaticall yfrom outside
Rlocked separately
Ropene dwitht he emergency release button
Runlockedw itht he mechanical key
Yo us houl dpreferabl yplace luggage or load sin
the trunk.
72Trunk
Opening and closing

Opening/closing from outside
Opening
XPress the %button on the SmartKey.
XPull handle :.
XRaise the trun klid.
Closing
XPull the trun klid down using recess :.
XLock the vehicle if necessary using the &
button on the key or with KEYLESS-GO.
If KEYLESS-GO detects aSmartKey in the trunk,
it does not lock.
Locking the trunk separately
You can lock the trun kseparately. If you then
unlock the vehicle centrally, the trun kremains
locked and cannot be opened.
XClose the trun klid.
XTake the mechanical key out of the SmartKey
(Ypage 67).
XInser tthe mechanical key into the trun klid
lock as far as it will go.
XTurn the mechanical key clockwise from posi-
tion 1to position 2.
XRemove the mechanical key.
XInsertthe mechanical key into the SmartKey.
Unlocking the trunk (mechanical key)
!
The trun klid swings upwards when opened.
Therefore, make sure that there is sufficient
clearanc eabove the trun klid.
If the trun kcannot be unlocked with the Smart-
Key or KEYLESS-GO, use the mechanical key.
If you use the mechanical key to unlock and
open the trun klid, the anti-thef talarm system
will be triggered. Switc hoff the alarm
(
Ypage 64).
XTake the mechanical key out of the SmartKey
(Ypage 67).
XInser tthe mechanical key into the trun klid
lock as far as it will go.
XTurn the mechanical key from position 1
counter-clockwise as far as it will go to posi-
Trunk73
Opening and closing
Z

specialist workshop which has the necessary
specialist knowledge and tools to carry out the
work required.
Overview:changing bulbs/bulb types
Halogen headlamps
:
Low-beam headlamp: H7 55 W
;High-beam headlamp: H7 55 W
Changing the front bulbs
Removing/mounting the coverint he
front wheel housing
XTo remove: switch off the lights.
XTurn the front wheels inwards.
XSlide cover:up and remove it.
XTo install: reinsert cover :and slide it down
until it engages.
Low-beam headlamps( halogenhead-
lamps)
XRemove the cover in the front wheel housing
(Ypage 100).
XTurn housing cover :counter-clockwise and
pull it out.
XPush bar ;upwards.
XRemove connector =with the bulb.
XPull the bulb out of connector =.
XInsert the new bulb into connector =and
place in the bracket of bar ;.
Make sure that the bulb is positioned cor-
rectly.
XPush bar ;downwards.
XAttach housing cover :and turn it clockwise
until it engages.
XReplace the cover in the front wheel housing
(Ypage 100).
High-beam headlamps( halogenhead-
lamps)/cornering lamps (Bi-Xenon
headlamps)
XSwitch off the lights.
XOpen the hood.
100Replacing bulbs
Lights and windshield wipers

XTurn housing cover:counter-clockwise and
pull it out.
XAt the bulb holder, push the bulb upwards,
disconnect it and pull it out of bulb holder ;.
XInsert the new bulb into bulb holder;at the
top, push it down and secure it in place.
XAttach housing cover :and turn it clockwise
until it engages.
Side marker lamp s(halogen head-
lamps)
Due to their location, have the bulbs in the side
marker lamp changed at aqualified specialist
workshop.
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratc hthe glass
if wiping takes place when the windshield is
dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, alwaysu se
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the
windshield using washer fluid after washing
the vehicle in an automatic car wash.
!Intermittent wiping with rain sensor: due to
optical influences and the windshield becom-
ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratc hthe windshield.
For this reason, you should alwayss witch off
the windshield wipers in dry weather.
Combination switch
1
$ Windshield wiper off
2ÄIntermittent wipe, low (rain sensor set
to low sensitivity)
3Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4° Continuous wipe, slow
5¯Continuous wipe, fast
BíSingle wipe/î Wipes the wind-
shield using washer fluid
If the wiper blades are worn, the windshield will
no longer be wiped properly. This could prevent
you from observing the traffic conditions.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is arisk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades, make
sure that you touch only the wiper arm of the
wiper.
!Never open the hood if awindshield wiper
arm has been folded away from the wind-
shield.
Never fold awindshield wiper arm without a
wiper blade back ontot he windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the
windshield wiper arm without awiper blade
Windshield wipers101
Lights and windshield wipers
Z

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

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿orÁ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on.Cooling with air dehumidification has been deactivated due to amal-
function.
XVisit aqualified specialist workshop.
Setting climate control to automatic
General notes
Automatic mode is only available with 3-zone
automatic climate control.
In automatic mode, the set temperature is main-
tained automatically at aconstant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The automatic mode functions optimally when
the "Cooling with air dehumidification" function
is activated. If necessary, cooling with air dehu-
midification can be deactivated.
If you deactivate the "Cooling with air-dehumid- ification" function, the air inside the vehicle will
not be cooled. The air inside the vehicle will also
not be dehumidified.T he windows can fog up
more quickly. Therefore, deactivate the cooling
with air-dehumidification function only briefly.
Automatic control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
XTo switch to manualm ode:press the _
button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
Setting the temperature
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XTo increase or reduce: turn control:
clockwise or counter-clockwise (Ypage 104).
Only change the temperature settingins mall
increments. Start at 72 ‡(22 †).
iIf you turn control :counter-clockwise to
the lowest temperature setting, air-recircula-
tion mode may activate automatically,
depending on the outside temperature.
3-zone automatic climate control
Differentt emperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XTo increase or decrease: turn control:or
B clockwise or counter-clockwise
(
Ypage 106).
Only change the temperature settingins mall
increments. Start at 72 ‡(22 †).
iIf you turn controls :and Bcounter-
clockwise to the lowest temperature setting,
air-recirculation mode may activate automat-
ically, depending on the outside temperature.
Operating the climate control systems109
Climatec ontrol

Setting the air distribution
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XPress one or more of the P,O,¯
buttons.
The correspondingi ndicator lamp lights up
briefly.
The following air distribution settings can be
selected:
¯ Directsa ir through the defroster vents
O Directsa ir through the footwell air vents
P Directsa ir through the center and side air
vents
iYou can also activate several air distribution
settings simultaneously. To do this, press
multiple air distribution buttons. The air is
then directed through various vents.
3-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XPress the _button repeatedly until the
desired symbol appears in the display.
The following air distribution settings can be
selected:
P Directsa ir through the center and side air
vents
O Directsa ir through the footwell air vents
S Directsa ir through the center, side and
footwell vents
¯ Directsa ir through the defroster vents
b Directst he airflow through the defroster,
center and side air vents( Canada only)
a Directsa ir through the defroster and
footwell vents
_ Directst he airflow through the defroster
vents, the center and side air ventsa s
well as the footwell air vents( Canada
only)
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. You can only close the side air vents, by fully closing the adjuster on the side air vents
(
Ypage 113).
Setting the airflow
Air-conditioning system
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XTo increase or reduce: turn controlC
clockwise or counter-clockwise (Ypage 104).
3-zone automatic climate control
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XTo increase or reduce: press theKor
I button.
Switching the ZONE function on/off
This function is only available with 3-zone auto-
matic climate control on vehicles for Canada.
XTo switch on: press theábutton.
The indicator lamp in the ábutton lights
up. The temperature settingf or the driver's
side is not adopted for the front-passenger
side.
XTo switch off: press theábutton.
The indicator lamp in the ábutton goes
out. The temperature settingf or the driver's
side is adopted for the front-passenger side.
Defrosting the windshield
General notes
You can use this function to defrost the wind-
shield or to defrost the inside of the windshield
and the side windows.
Switch off the "Windshield defrosting" function
as soon as the windshield is clear again.
Switching the "windshield defrosting"
function on or off
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 116).
XTo switch on: press the¬button.
The indicator lamp in the ¬button lights
up.
110Operating the climate control systems
Climatec ontrol

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