2018 MERCEDES-BENZ SLC ROADSTER ECO mode

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

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

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

Rthe suspensionexhibits fir mdamping set-
ting s(vehicle switha dapt ive damping system
or AMG sports suspension).
Rthe steering exhibits sporty steering charac-
teristics.
Drive program S+ (Sport Plus)
Drive program S+is characterized by the fol-
lowing:
Rthe vehicl eexhibits particularly sporty driving
characteristics.
Rthe vehicl epulls away in first gear.
Rthe automatic transmission shifts up later.
The fuel consumption possibl ybeing higher
as aresul toft he later automatic transmission
shift points.
Rthe suspensio nexhibits particularly firm
damping setting s(vehicle switha dapt ive
damping systemorA MG sports suspension).
Rthe steering exhibits sporty steering charac-
teristics.
Rthe ECO start/stopfunctio nisn ot available.
Drive program I(Individual)
In drive program Ithe following propertie softhe
drive progra mcan be selected:
Rthe drive (engine and transmission manage-
ment)
Rthe suspensio n(vehicle switha dapt ive damp-
ing systemorA MG sports suspension)
Rthe steering
Rthe availability of the ECO start/sto pfun ction
Informatio nabout configurin gdrive program I
with the multimedia systemc an be found in the
Digita lOperator' sManual.
Drive program E(Econom y)
Drive program Eis characterized by the follow-
ing:
Rthe vehicl eexhibits comfortable, economical
handling characteristics.
Rthe vehicl epulls away mor egently in forward
and revers egears ,unles sthe accelerator
peda lisdepresse dfully.
Rthe vehicl ehasimproved drivin gstability, for
exampl eonslipperyroads urfaces.
Roptimal fuel consumption resulting fromt he
automatic transmission shiftin gupsooner. Th
ev ehicl eisd riven in the lo wengine speed
range and the wheels ar elesslikel ytos pin.
Rthe suspensio nexhibits comfortabl edam ping
setting s(vehicle switha dapt ive damping sys-
tem or AMG sports suspension).
Rdurin gdeceleration, the engine is disconnec-
ted fromt he drive train. Th evehicl euses
kinetic energy and consumes less fuel (coast-
ing mode).
Rthe steering exhibits comfortabl esteering
characteristics.
Manual gear shifting
General notes
Yo uc an change gear yourself using the steering
whee lpaddl eshifters. Th etransmission must be
in position hto do this.
Depending on which steering whee lpaddl e
shifter is pulled ,the automatic transmission
immediatel yshifts into the next gear down or
up ,ifp ermitted.
To us emanualshifting, yo uhavet wo options:
Rtemporary setting
Rpermanent setting
If yo uactivate manua lgears hifting, the multi-
functio ndisplay will sho wthe current gear
instea doftransmission position h.
If manua lgears hiftin gisd eactivated ,the gears
will be selected automatically.
Temporary setting
XTo activate: shift the selector lever to h.
XPull steering wheelpaddl eshifter :or;.
The temporary setting is active for acertain
amount of time. Under certai nconditions ,the
minimum amount of tim eisextended, e.g .inthe
126Automati ctransmission
Driving an dparking

Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked ataqualified specialist workshop
immediately.
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear.The transmission is in emergency mode.
It is only partly possible to engage the gears, or the transmission is in
position i.
XStop the vehicle.
XShift the transmission to position j.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionhork.
XHave the transmission checked at aqualified specialist workshop
immediately.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is arisk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay.Don ot induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
Electrostatic buildupc an create sparks and
ignite fuel vapors. There is arisk of fire and
explosion.
Always touch the vehicle body before opening
the fuel filler flap or touching the fuel pump
nozzle. Any existing electrostatic buildupi s
thereby discharged.
Do not get into the vehicle again during the refu-
eling process. Otherwise, electrostatic charge
could build up again.
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the ignition
if you accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel system. Even small amounts of the wrong fuel could
result in damage to the fuel system and the
engine. Notify aqualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
Refueling129
Driving and parking
Z

Drivingtips
General notes
Important safet ynotes
GWARNING
If you switch of fthe ignition whil edriving,
safety-relevant function sare only available
wit hlimitations, or no tatall. Thi scould affect,
fo re xample, th epowe rsteerin gand th ebrake
boostin geffect. You will require considerably
more effort to steer and brake .There is arisk
of an accident.
Do no tswitch of fthe ignition whil edriving.
GWARNING
If you operat emobile communication equip -
men twhen driving, you may be distracted
from th etraffic situation .You could also los e
contro lofthevehicle. There is ariskofa n
accident.
Only operat ethise quipmen twhen th evehicle
is stationary.
Observ ethe lega lrequirements fo rthe country
in whic hyou are driving. Some jurisdiction spro-
hibi tthe driver from usin gamobile phone whil e
drivin gavehicle.
If you mak eacallw hiled riving, always use
hands-free mode. Only operat ethe telephon e
when th etraffic situation permits. If you are
unsure ,pull over to asafel ocation and stop
befor eoperatin gthe telephone.
Bear in min dthatatas peed of only 30 mph
(approximately 50 km/h), th evehicle cover sa
distanc eof44f t(approximately 14 m)per sec-
ond.
Drive sensibly –save fuel
Observe the following tips to save fuel:
RThe tires should always be inflated to the rec-
ommended tire pressure.
RRemove unnecessary loads.
RWarm up the engin eatlow engin espeeds.
RAvoid frequenta cceleration or braking.
RObserve the servicei ntervals in the Mainte-
nanc eBooklet or in the servicei nterval dis-play. Have all the maintenanc
ework carried in
accordance with Daimler AG regulations.
Fuel consumption also increases when driving in cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
GWARNING
Drinkin gand driving and/or takin gdrugs and
driving are very dangerous combinations.
Even asmall amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of aserious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Thereforen ever leave
the engin erunning in enclosed spaces with-
out sufficientv entilation.
Certain engin esystems are designed to keep
the level of poisonous component sinexhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications .Always have
work on the engin ecarried out at aqualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
BenzC enter for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at aqualified specialist
workshop.
The engin esettings must not be changed under
any circumstances. Furthermore, all specific
servicew ork must be carried out at regular
intervals and in accordance with the Mercedes-
Benzs ervicer equirements. Details can be found
in the Maintenance Booklet.
134Driving tips
Driving and parking

ECO display
The ECO display showsyou how economical
your driving style is. The ECO display assists you
in achievin gthe mos teconomical driving style
for th eselecte dsettings and prevailingc ondi-
tions .Your driving style can significantly influ-
enc ethe vehicle's consumption.
:Acceleration
;Coasting
=Constant
?Additional range achieved
Range ?is shownu nderBonus
fr.Startand
represents th eadditional range achieve dsince
th eb eginnin gofthejourney as aresult of an
adapted driving style.
If th efuel leve lhas dropped int othe reserve
range, the FuelLow
message is shownint he
multifunction display instead of range ?.The
8 warning lamp in th einstrumen tcluster
also lightsup(
Ypage 207). The ECO display consistsoft
hree sections ,with
an inner and outer area. The sections corre-
spondtot hefollowingt hree categories:
:Acceleration (evaluationofall accel-
eration processes):
Rth eo uter area fills up and th einner
area lightsupg reen: moderate
acceleration, especiall yathigher
speeds
Rth eo uter area empties and the
inner area is gray: sporty acceler-
ation
;Coasting (evaluationofall decelera-
tio np rocesses):
Rtheo uter area fills up and th einner
area lightsupg reen: anticipatory
driving ,kee pingy our distanc eand
early release of th eaccelerator.
The vehicle can coas twithout use
of th ebrakes.
Rtheo uter area empties and the
inner area is gray: frequenth eavy
braking
=Constant (continuous evaluation
ove rthe entire journey):
Rtheo uter area fills up and th einner
area lightsupg reen: constant
speeda nd avoidanc eofunneces-
sary acceleratio nand deceleration
Rtheo uter area empties and the
inner area is gray: fluctuationsi n
speed
The three inner areas display th ecurren tdriving
style and light up green as aresult of aparticu-
larly economical driving style. Dependingont he
driving situation, up to two areas may light up
simultaneously.
At th ebeginnin gofthejourney, th ethree outer
areas are emptya nd fill up asaresult of eco-
nomical driving .Ahigher leve lindicates amore
economical driving style. If th ethree outer areas
are completely fille datthesame time, th edriver
has adopted th emoste conomical driving style
for th eselecte dsettings and prevailingc ondi-
tions .The ECO display border lightsu p.
The ECO display does no tindicat ethe actual fuel
consumption. The additionally achieve drange
displayed under Bonus fr. start
does not
indicat eafixed consumptio nreduction.
Driving tips135
Driving and parking
Z

In addition to driving style, the actual consump-
tion is affected by other factors, such as:
Rload
Rtire pressure
Rcold start
Rchoice of route
Ractive electrical consumers
These factors are not includedint he ECO dis-
play.
An economical driving style specially requires
driving at moderate engine speeds.
Achieving ahigher valueint he categories
"Acceleration" and "Constant":
Robserve the gearshift recommendations.
Rdrive the vehicle in drive program Cor E.
In urbant raffic and stop-start traffic, drive pro-
gram Cis recommended.
On long journeys at aconstant speed,e .g. on the
highway, only the outer area for "constant" will
change.
The ECO display summarizes the driving style
from the start of the journey to its completion.
Therefore, there are more marked changes in
the outer areasatt he start ofajourney. On lon-
ger journeys, there are fewer changes. For more
marked changes, perform amanua lrest
(
Ypage 167).
Further information on the ECO display
(
Ypage 166).
Braking
Important safety notes
GWARNING
If you shift down on aslippery road surface in
an attempt to increase the engine's braking
effect, the drive wheelsc ould lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on aslippery road surface.
Downhill gradients
!On long, steep gradients, you must reduce
the load on the brakes. To use engine braking,
shift to alowerg ear in good time. This helps you to avoid overheating the brakes and wear-
ing them out excessively.
When making use of the engine braking
effect, it is possible that
adrive wheel may not
turn for some time, e.g. in the case of sud-
denly changing or slippery road surface con-
ditions. This could cause damage to the drive
train. This type of damage is not covered by
the Mercedes-Benz warranty.
Change into alowerg ear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden.
This also applies if you have activated cruise
control or Distance PilotD ISTRONIC.
Heavy and light loads
GWARNING
If you rest you rfoot on the brake pedalw hile
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail.T here is a
risk of an accident.
Never use the brake pedalasaf ootrest. Never
depresst he brake pedala nd the accelerator
pedalatt he same time.
!Depressing the brake pedalc onstantly
results in excessive and premature weart o
the brake pads.
If the brakes have been subjected to aheavy
load,don ot stop the vehicle immediately,b ut
drive on for ashort while. This allows the airflow
to cool the brakes more quickly.
Wet roads
If you have driven for along time in heavy rain
withoutb raking, there may be adelayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has
been washed or driven through deep water.
You then have to depresst he brake pedalmore
firmly.M aintainagreater distance from the
vehicle in front.
After driving on awet road or having the vehicle
washed, brake firmly whilep aying attention to
the traffic conditions. This willw arm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
136Driving tips
Driving and parking