2018 MERCEDES-BENZ SLC ROADSTER tires

Removingawheel.......................... 283
Storing ........................................... 281
Tightening torque ........................... 284
Wheel size/tire size ....................... 284
Win dscreen
Inserting and removing .................... 80
Preparing for installation .................. 80
see AIRGUIDE
Windows
see Sid ewindows
Windshield
Defrosting ...................................... 110
Windshiel dwasher fluid
see Windshield washers ystem
Windshiel dwasher system
Adding washerf luid ....................... 236
Important safety notes .................. 294
Windshiel dwipers
Displa ymessage ............................ 201
Problem (malfunction) ................... 103
Replacing the wipe rblade s............ 101
Switching on/off. .......................... 101
Winter driving
Important safety notes .................. 262
Slippery roads urfaces ................... 138
Snow chains .................................. 262
Winter operation
Overview ........................................ 262
Winter tires
M+S tire s....................................... 262
Wipe rblades
Cleaning ......................................... 241
Important safety notes .................. 101
Replacing ....................................... 101
Workshop
see Qualifie dspecialist workshop
Z
ZONE function
Switching on/off. .......................... 110
Index21

Protecting the environment
General notes
HEnvironmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in amanner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
Roperating conditionsofy our vehicle
Ryour personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
Ravoid short trips as these increase fuel con-
sumption.
Ralways make sure that the tire pressures
are correct.
Rdo not carry any unnecessary weight.
Rremove roof racks once you no longer need
them.
Rar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
Ralways have service work carried out at a
qualified specialist workshop.
Personal driving style:
Rdo not depress the accelerator pedal when
startin gthe engine.
Rdo not warm up the engine when the vehicle
is stationary.
Rdrive carefully and maintain asafe distance
from the vehicle in front.
Ravoid frequent, sudden acceleration and
braking.
Rchange gear in good time and use each gear
only up to Ôof its maximum engine speed.
Rswitch off the engine in stationary traffic.
Rkeep an eye on the vehicle's fuel consump-
tion.
Environmental concerns and recom-
mendations
Wherever the operating instructions require you
to dispose of materials, first try to regenerate or
re-use them. Observe the relevant environmen-
tal rules and regulations when disposing of
materials. In this way you will help to protect the
environment.
Genuine Mercedes-Benz parts
HEnvironmental note
Daimler AG also suppliesr econditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the
same Limited Warranty entitlements as new
parts.
!Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in
the following areas of your vehicle:
Rdoors
Rdoor pillars
Rdoor sills
Rseats
Rcockpit
Rinstrumentc luster
Rcenter console
Do not install accessories such as audio sys-
tems in these areas. Do not carry out repairs or welding. You could impair the operating
efficiency of the restraint systems.
Have aftermarket accessories installed at a
qualified specialist workshop.
You could jeopardize the operating safety of
your vehicle if you use parts, tires and wheels as
well as accessories relevant to safety which
have not been approved by Mercedes-Benz. This
could lead to malfunction sinsafety-relevant
Genuine Mercedes-Benz parts23
Introduction
Z

systems, e.g. the brake system. Use only genu-
ine Mercedes-Benz parts or parts of equalqual-
ity. Only use tires, wheels and accessories that
have been specifically approved for your vehi-
cle.
Genuine Mercedes-Benz parts are subject to
strict quality control. Every part has been spe-
cifically developed,m anufactured or selected
for and adapted to Mercedes-Benz vehicles.
Therefore, only genuine Mercedes-Benz parts
should be used.
More than 300,000 different genuine
Mercedes-Benz parts are available for
Mercedes-Benz models.
All authorized Mercedes-Benz Centers maintain
as upply of genuine Mercedes-Benz parts for
necessary service and repair work. In addition,
strategically located parts delivery centers pro-
vide quick and reliable parts service.
Always specify the vehicle identification number
(VIN) when ordering genuine Mercedes-Benz
parts (
Ypage 289).
Operator's Manual
Vehicle equipment
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of going to
print. Country-specific differences are possi-
ble. Bear in mind that your vehicle may not
feature all functions described here. This also applies to safety-relevant systems and func-
tions. The equipment in your vehicle may
therefore differ from that shown in the
descriptions and illustrations.
The original purchase agreement lists all sys-
tems installed in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-
let are important documents and should be kept
in the vehicle.
Service and vehicleo peration
Warranty
The implied warranty for your vehicle applies in
accordance with the warranty terms and condi- tions in the Service and Warranty Information
booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-installedp
arts in
accordance with the following warranty terms
and conditions:
RNew Vehicle Limited Warranty
REmission System Warranty
REmission Performance Warranty
RCalifornia, Connecticut,M aine, Massachu-
setts, New York, Pennsylvania, Rhode Island
and Vermont Emission Control System War-
ranty
RState warranty enforcementl aws (lemon
laws)
Replacement parts and accessories are covered
by the Mercedes-Benz Parts and Accessories
warranties. These are available at any author-
ized Mercedes-Benz Center.
iShould you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for areplace-
ment. The new Service and Warranty Infor-
mation booklet will be posted to you.
Information for customers in Califor-
nia
Under California law you may be entitled to a
replacement of your vehicle or arefund of the
purchase price or lease price, if after areason-
able number of repair attempts Mercedes-Benz
USA, LLC and/or its authorized repair or service
facilities fail to fix one or more substantial
defects or malfunctions in the vehicle that are
covered by its express warranty.
During the period of 18 months from original
delivery of the vehicle or the accumulation of
18,000 miles (approximately 29,000 km) on the
odometer of the vehicle, whichever occurs first,
ar easonable number of repair attempts is pre-
sumed for aretail buyerorl essee if one or more
of the following occurs:
(1) the same substantial defect or malfunction results in acondition that is likely to cause
death or serious bodily injury if the vehicle is
driven, that defect or malfunction has been
subject to repair two or more times, and you
24Service and vehicleo peration
Introduction

Operating safety
Important safetynotes
GWARNING
If you do not have the prescribed service/
maintenanc ework or any required repairs
carried out, this can result in malfunctions or system failures. There is arisk of an accident.
Always have the prescribed service/mainte-
nanc ework as well as any required repairs
carried out at aqualified specialist workshop.
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is arisk
of fire.
When driving off road or on unpaved roads,
checkt he vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
GWARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardiz ethe operatin gsafety of
the vehicle. There is an increased risk of an
accidenta nd injury.
Never tamper with the wiring as well as elec-
tronic component sortheir software. You
should have all work to electrical and elec-
tronic equipment carried out at aqualified
specialist workshop.
!There is arisk of damage to the vehicle if:
Rthe vehicle becomes stuck ,e.g. on ahigh
curb or an unpaved road
Ryou drive too fast over an obstacle, e.g. a
curb, aspeed bump or apothole in the road
Rah eavy objec tstrikes the underbody or
parts of the chassis
In situation slike this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the loads they are designed
to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust system, they can catc hfire.
In such situations, have the vehicle checked
and repaired immediately at aqualified spe-
cialist workshop. If on continuin gyour jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult aqualified spe-
cialist workshop.
Declarations of conformity
Vehicle components which receive
and/or transmit radio waves
USA: "The wireless devices of this vehicle com-
ply with Part 15 of the FCC Rules. Operation is
subject to the two following two conditions :1)
These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation .Changes
or modifications not expressly approved by the
party responsible for compliancec ould void the
user’s authorit ytooperate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions :(1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."
26Operating safety
Introduction

You are responsible for maintainingthe distance
to the vehicle in front, for vehicle speed, for
braking in good time, and for stayin ginlane.
Always adapt your drivings tyle to suit the pre-
vailing road and weather condition sand main-
tain asafe distance from the vehicle in front.
Drive carefully.
The drivings afetysystems described only work
as effectively as possible when there is ade-
quate contac tbetwee nthe tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tir et read depth setc.int he "Wheels and tires"
section (
Ypage 260).
In wintry drivingc onditions, always use winter
tires (M+S tires) and if necessary, sno wchains.
Only in this way will the drivings afetysystems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
Genera linformation
AB Sregulates brakep ressure in suchaway that
the wheels do not lock when you brake. This
allows you to continue steeringt he vehicle when
braking.
The ! ABSw arnin glamp in the instrument
cluster lightsupw hen the ignition is switched
on. It goes out when the engin eisrunning.
AB Sw orksf romaspeed of about 5mph
(8 km/h), regardless of road-surfacec onditions.
AB Sw orksons lippery surfaces, even when you
only brakeg ently.
Important safetyn otes
iObserve the "Importan tsafetyn otes" sec-
tion (Ypage 56).
GWARNING
If AB Sism alfunctioning, the wheels could
lock when braking. The steerabilitya nd brak-
ing characteristics would be severely affec-
ted. There is an increased danger of skidding and accidents.
Drive on carefully. Have AB Schecked imme-
diately at aqualified specialis tworkshop.
When AB Sismalfunctioning, other systems,
including drivings afetysystems, will also becom
einoperative .Observe the information
on the AB Swarnin glamp (
Ypage 204) and dis-
play messages which may be shown in the
instrumentc luster (
Ypage 179).
Brakes
XIf ABS intervenes: continue to depresst he
brakep edal vigorously until the braking sit-
uation is over.
XTo make afull brake application: depress
the brakep edal with full force.
If AB Sintervenes when braking, you will feel a
pulsing in the brakep edal.
The pulsatin gbrakep edal can be an indication
of hazardous road conditions, and function sasa
reminder to tak eextra care while driving.
BAS (Brake Assist System)
Genera linformation
BA So perates in emergenc ybraking situations.
If you depresst he brakepedal quickly, BAS
automatically boostst he braking force, thus
shortening the stopping distance.
Important safetyn otes
iObserve the "Importan tsafetyn otes" sec-
tion (Ypage 56).
GWARNING
If BA Sism alfunctioning, the braking distance
in an emergenc ybraking situation is
increased. There is arisk of an accident.
In an emergenc ybraking situation, depress
the brakep edal with full force. AB Sprevents
the wheels from locking.
Braking
XKeep the brakep edal firmly depressed until
the emergenc ybraking situation is over.
AB Sp revent sthe wheels from locking.
The brakes will function as usual onc eyou
release the brakep edal. BASisdeactivated.
Driving safetys ystems57
Safety
Z

Important safety notes
GWARNING
Adaptive Brake Assist canno talways clearly
iden tifyo bject sand co mplextraffic situa-
tions.
In suchc ases, Adaptive Brake Assist can:
Rinterveneu nnecessarily
Rnotintervene
Thereisar iskofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake. Terminate the
interventio ninanon-criticaldriving situation.
GWAR NING
Adaptive Brake Assist does no treact:
Rto people or animals
Rto oncomin gvehicle s
Rto crossing traff ic
Rwhen cornering
As aresult, th eAdaptive Brake Assist may not
interveneina llcritical conditions. Thereisa
ris kofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake.
Always adapt your speedtos uit theprevailin g
road and traff icconditions.
Due to th enature of th esystem, particularly
co mpli cated but non-critical driving conditions
may also caus eBrake Assist to intervene.
If adaptive Brake Assist isno tavailab ledue to a
malfunctio nintheradar sensor system, the
brak esystem remains availab le withfull brake
boostin geffect and BA S.
Adaptive brak elights
i
Observ ethe "Im portan tsafety notes" sec-
tio n(Ypage 56).
If you brakes harply from aspeedofm oret han
50 km /horifbraking isassiste dbyBASor
Brake Assist withC ross-Traffic Assist,t hebrake
lamps flas hrapid ly.Inthis way, traff ictraveling
behindy ouiswarned inan eve nmoren oticeable
manner. If
you brakes harply from aspeedofm oret han
70 km /htoas tandstill, th ehazard warning
lamps are activated automatically. Ifth eb rakes
are applieda gain,thebrak elamps light up con-
tinuously. The hazard warning lamps switch off
automatical ly ifyou travel faster than 10 km/h.
You can also switch off th ehazard warning
lamps usingt hehazard warning button
(
Ypage 97).
ESP®(Electronic Stability Program)
General notes
iObserv ethe "Importan tsafety notes" sec-
tio n(Ypage 56).
ESP
®monitors driving stabilitya nd traction,i.e.
power transmission between th etires and the
road surface.
If ESP
®detect stha tthe vehicle is deviating from
th ed irection desired by th edriver, oneorm ore
wheelsa re braked to stabilizet hevehicle .The
engineo utput is also modifie dtokeept he vehi-
cle on th edesired course within physical limits.
ESP
®assists th edriver when pullingaway on
wet or slippery roads. ESP®can also stabilize
th ev ehicle duringb raking.
ETS (Electronic Traction System)
iObservethe "Importan tsafety notes" sec-
tio n(Ypage 56).
ET St raction control is part of ESP
®.
ET Sb rakes th edrivew heelsi ndivid ually if they
spin .This enables you to pull away and acceler-
ate on slippery surfaces, for example if th eroad
surface is slippery on ones ide.Inaddition,m ore
driv etorque is transferred to th ewheel or
wheelsw itht raction.
ET Sr emains active when you deactivate ESP
®.
Important safety notes
GWARNING
If ESP
®is malfunctionin gitwill notprovide
any vehicle stabilization .Thereisani ncreased
ris kofs kiddin gorofana ccident.
Exercise caution when continuing to drive.
Hav eESP
®checked at aqualified specialist
workshop.
60Driving safety systems
Safety

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

Drivingonw et road s
Hydroplaning
If water has accumulated to acertai ndept hon
th er oads urface, there is adanger of hydro-
planin goccurring.
Fo rthisr eason ,intheevent of heav yrain or in
condition sinwhichh ydroplaning may occur ,
you mus tdrive in th efollowin gmanner:
Rlowe ryour speed
Ravoid rut s
Ravoid sudden steerin gmovements
Rbrake carefully
Drivin gonflooded road s
!Do notdrive through floode dareas. Chec k
th ed ept hofa ny water befor edrivin gthrou gh
it .D rive slowly through standin gwater. Oth-
erwise ,water could ente rthe vehicle interio r
or engin ecom partment. It can then damage
th ee ngine's or automatic transmission' s
electronic components. It can also be sucke d
in by th eengine's air intake connection and
cause engin edamage.
Winte rdrivin g
GWARNING
If you shift down on aslipper yroads urfac ein
an attempt to increase th eengine's braking
effect ,the drive wheels could los etheir grip.
There is an increase ddanger of skidding and
accidents .
Do no tshift down fo radditional engin ebrak-
in gonas lipperyroads urface.
GDANGER
If th eexhaus tpipe is blocke doradequat e
ventilation is no tpossible, poisonous gases
suc hasc arbon monoxide (CO) may ente rthe
vehicle. Thi sisthecase, e.g. if th evehicle
becomes trappe dinsnow. There is arisko f
fatal injury.
If you leav ethe engin eortheauxiliar yheatin g
running ,makes uret he exhaus tpipe and are a
around th evehicle are clear of snow. To
ensur eana dequat esupply of fresh air, ope na
window on thesideoft hevehicle that is no t
facin gintot he wind.
Hav eyour vehicle winter-proofed at aqualified
specialis tworkshop at th eonset of winter.
Drive particularly carefully on slipper yroads ur-
faces. Avoid sudden acceleration ,steerin gand
braking maneuvers .Donotuse cruise control.
If th evehicle threatens to skid or canno tbe
stopped when movin gatlow speed:
XShift th etransmissio ntoposition i.
The outsid etem perature indicator is no t
designed to serve as an ice-warnin gdevic eand
is therefore unsuitable fo rtha tp urpose.
Changes in th eoutsid etem perature are dis -
playe dafter ashort delay.
Indicated temperature sjusta bov ethe freezin g
poin tdon otguarantee that th eroads urfac eis
free of ice. The road may still be icy, especially in
wooded areas or on bridges. The vehicle could
skid if you fail to adapt your drivin gstyle. Always
adapt your drivin gstyle and drive at aspeed to
suit th eprevailin gweather conditions.
You should pay special attention to road condi-
tion swhen temperature sare around freezin g
point.
Fo rm orei nformat ion on drivin gwiths now
chains, see (
Ypage 262).
Fo rm orei nfor mati
on on drivin gwiths ummer
tires ,see (Ypage 262).
Observ ethe note sint he"Winte roperation "sec-
tion (
Ypage 262).
Drivin gsystems
Cruis econtro l
General notes
Cruise contro lmaintain saconstan troa ds peed
fo ry ou. It brake sautomatically in order to avoid
exceedin gthe set speed. On lon gand steep
downhill gradients, especially if th evehicle is
laden, you mus tselec talowe rgear in goo dtim e.
By doin gso, you will mak euse of th ebraking
effect of th eengine. Thi srelieves th eload on th e
brake syste mand prevents th ebrake sfrom
overheatin gand wearin gtoo quickly.
Use cruise contro lonlyifr oada nd traffic con-
dition smakeita ppropriat etomaintain asteady
138Driving systems
Driving an dparking