2018 MERCEDES-BENZ SLC ROADSTER service

Emergency call
Important safety notes
GWARNING
It can be dangerous to remain in th evehicle,
even if you have pressed th eSOS button in an
emergency if:
Ryou see smoke inside or outside of th evehi-
cle ,e.g.ift here is afirea fter an accident
Rthev ehicle is on adangerous sectio nof
road
Rth ev ehicle is no tvisible or canno teasily be
seen by other road users, particularly when
dark or in poor visibilityc onditions
Thereisar isk of an accidenta nd injury.
Leavet hevehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Movetoas afe locationalongw ith other vehi-
cle occupants. In suchs ituations,secure the
vehicle in accordanc ewith national regula-
tions ,e.g.w ith aw arning triangle.
You must have alicens eagreementtoa ctivate
th em brace service. Makes ure that your system
is activated and operational. To register, press
the ï MB Info call button.Ifa ny of thesteps
mentioned are no tcarried out,t hesystem may
no tbea ctivated.
If you have questionsa bout theactivation,c on-
tac tone of th efollowingt elephone hotlines:
RUSA: Mercedes-Ben zCustomerA ssistance
Center at 1-800-FOR-MERCedes
(1-800-367-6372 )or1 -866-990-9007
RCanada: Customer Service at
1-888-923-8367
General notes
An emergencyc all is dialed automatically if an
air bag or Emergency TensioningD evice is trig-
gered.
iYou cannot end an automatically triggered
emergency
c all yourself.
An emergencyc all can also be initiated man-
ually.
As soon as the emergencyc all has been initi-
ated, the indicator lamp in the SOS button
flashes. The multifunction display shows the
Connecting Call
message. The audio output is muted.
Once the connection has been made, the
Call
Connectedmessage appears in the multifunc-
tion display.
All important information on the emergencyi s
transmitted, for example:
Rcurrent location of the vehicle (as determined
by the GPS system)
Rvehicle identification number
Rinformation on the severity of the accident
Shortly after the emergencyc all has been initi-
ated, avoice connection is automatically estab-
lished between the Customer Assistance Center
and the vehicle occupants.
RIf the vehicle occupantsr espond, the
Mercedes-Benz Customer Assistance Center
attempt stoget more information on the
emergency.
RIf there is no response from the vehicle occu-
pants, an ambulance is immediately sent to
the vehicle.
If no voice connection can be established to the
Mercedes-Benz Customer Assistance Center,
the system has been unable to initiate an emer-
gency call.
This can occur, for example, if the relevant
mobile phone network is not available. The indi-
cator lamp in the SOS button flashes continu-
ously.
The Call Failed
message appears in the mul-
tifunction display and must be confirmed.
In this case, summon assistance by other
means.
Making an emergency call
Features225
Stowage and features
Z

XTo initiate an emergencycallm anually:
press cover :briefl ytoo pen.
XPress SOS button ;briefly.
The indicator lamp in SOS button ;flashes
unti lthe emergency cal lisconcluded.
XWait for avoice connectio ntothe Mercedes-
Benz Customer Assistance Center.
XAfter the emergency call, close cover :.
iIf the mobilephone network is unavailable,
mbrace will not be able to make the emer-
genc ycall. If yo uleave the vehicl eimmedi-
ately afte rpressing the SOS button, yo uwill
not know whethe rmbrace place dthe emer-
genc ycall. In thisc ase, always summon assis-
tance by othe rmeans.
Breakdow nassistanc ebutton
XPress Roadside Assistance button :.
Thi sinitiates acalltot he Mercedes-Benz Cus-
tomerA ssistance Center.
The indicator lamp in Roadside Assistance
button :flashesw hilethe cal lisactive. The
multifunctio ndisplay shows the Connect‐
ing Callmessage. The audi ooutputi s
muted.
If ac onnectio ncan be made ,the CallC on‐
nectedmessage appears in the multifunction
display.
If am obilephone network and GP Sreception
are available ,the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
RCurrent location of the vehicle
RVehicl eide ntificatio nnumber
iThe display of the multimedia system indi-
cate sthatac allisa ctive. During the call, you
can change to the navigatio nmenu by press- ing the NAVI button on COMAND, for exam-
ple.
iVoice outputi
snot available.
Av oice connectio nise stablished between the
Mercedes-Benz Customer Assistance Center
and the vehicl eoccupants.
From the remote malfunctio ndiagn osis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
(
Ypage 227).
The Mercedes-Benz Customer Assistance Cen-
ter either send saqualified Mercedes-Benz tech-
nician or makes arrangements for your vehicle
to be transported to the nearestM ercedes-Benz
Service Center.
Yo um aybe chargedf or servicessuchasr epair
work and/or towing.
Further details are available in your mbrace
manual.
iThe system hasn ot been able to initiate a
Roadside Assistance call, if:
Rthe indicator lamp for Roadside Assistance
cal lbutton :is flashing continuously.
Rno voice connectio ntothe Mercedes-Benz
Customer Assistance Center wa sestab-
lished.
Thi scan occurift he relevant mobil ephone
network is not available ,for example.
The CallF ailed
message appears in the
multifunctio ndisplay.
XTo en dacall:press the ~button on the
multifunctio nsteering wheel.
or
XPress the corresponding multimedia system
button for ending aphone call.
MB Info cal lbutton
226Features
Stowag eand featur es

XPress MB Info call button:.
This initiates acall to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in MB Info call button :
flashes while the connection is being made.
The multifunction display shows the Con‐
nectingCallmessage. The audio system is
muted.
If ac onnection can be made, the Call Con‐
nectedmessage appears in the multifunction
display.
If am obile phone networ kand GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
Rcurrentl ocation of the vehicle
Rvehicle identification number
iThe display of the multimedia system indi-
cates that acall is active. During the call, you
can change to the navigation menu by press-
ing the NAVI button on COMAND,f or exam-
ple.
Voice output is not available.
Av oice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
You receive information about operating your
vehicle, about the nearest authorized
Mercedes-Benz Center and about other prod-
ucts and services from Mercedes-Benz.
USA only: you can find further information on
the mbrace system under "Owners Online" at
http://www.mbusa.com.
iThe system has not been able to initiate an
MB Info call, if:
Rthe indicator lamp in MB Info call button :
is flashing continuously.
Rno voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone
networ kisnot available, for example.
The Call Failed
message appears in the
multifunction display.
XTo end acall: press the ~button on the
multifunction steerin gwheel.
or
XPress the corresponding multimedia system
button for ending aphone call.
Call priority
When service calls are active, e.g. Roadside
Assistance or MB Info calls, an emergencyc all
can still be initiated. In this case, an emergency
call will take priority and override all other active
calls.
The indicator lamp of the respective button
flashes until the call is ended.
An emergencyc all can only be terminated by the
Mercedes-Benz Customer Assistance Center.
All other calls can be ended by pressing:
Rthe ~ button on the multifunction steering
wheel
Rthe corresponding button on the audio sys-
tem or on COMAND for ending atelephone
call
iWhen acall is initiated, the audio system is
muted. The mobile phone is no longer con-
nected to COMAND.H owever, if you want to
use your mobile phone, do so only when the
vehicle is stationary and in asafe location.
Vehicle Health Check
With the Vehicle Health Check, the Customer
Assistance Center can provide improved sup-
port for problems with your vehicle. During an
existin gcall, vehicle data is transferred to the
Customer Assistance Center. The customer ser-
vice representative can use the received data to
decide what kind of assistanc eisrequired. You
are then ,for example, guided to the nearest
Mercedes-Benz ServiceC enter orarecovery
vehicle is called.
If vehicle data needs to be transferred during an
MB Info call or aRoadside Assistance call, this is
initiated by the Customer Assistance Center.
You will see the Roadside Assistance Con‐
nectedmessage in the COMAND display. If the
vehicle remotem alfunction diagnosis can be
started, the Request for vehicle diagno‐
sisreceived.Startvehiclediagnosis?message appears in the display.
XConfirm the message with Yes.
XWhen theVehicle diagnosis: Pleasestart ignitionmessage appears, turn the
SmartKey to position 2in the ignition lock
(
Ypage 116).
XWhen the Please follow the instruc‐tions received by phone and moveyour vehicle to asafe positionmes-
Features227
Stowage and features
Z

sage appears, follow the customer service
representative's instructions.
The message in the displaydisappears.
If you select Cancel
the remote malfunction
diagnosis is canceled completely.
The vehicle operating state check begins. You
will see the Vehicle
diagnosisactivatedmessage.
When the diagnosis is completed, the Trans‐
fer vehicle diagnostics data (Voiceconnection may be interrupted duringdatatransfer)message appears. The vehicle
data can now be sent to the Customer Assis-
tance center.
XPress OKto confirm the message.
The voice connection with the Customer
Assistance Center is terminated.
You will see the Vehicle diagnosis:
Transferring data...message.
The vehicle data is sent to the Customer
Assistance Center.
Depending on what the customer service rep-
resentative agreed with you, the voice connec-
tion is re-established after the transfer is com-
plete. If necessary, you will be contacted at a
later time by another means, e.g. by e-mail or
phone.
Another function of the Vehicle Health Check is
the transfer of service data to the Customer
Assistance Center. If aservice is overdue, the
COMAND displays howsamessage about vari-
ous special offers at your workshop.
USA only: this information can also be called up
under "Owners Online" at http://
www.mbusa.com.
Information on the data stored in the vehicle
(
Ypage 28).
Information on Roadside Assistance
(
Ypage 25).
Garage door opener
General notes
The HomeLink®garage door opener integrated
in the rear-view mirror allowsy ou to operate up
to three different door and gate systems.
Use the integrated garage door opener only on
garage doors that:
Rhave safety stop and reverse features and
Rmeet current U.S. federal safety standards Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote
control. Please also read the operating instruc-
tions for the garage door system.
When programming
agarage door opener, park
the vehicle outside the garage. Do not run the
engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage door opener, contact an authorized Mercedes-
Benz Center.
Alternatively, you can call the following tele-
phone assistance services:
RUSA: Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
RCanada: Customer Service at
1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free of
charge)
More information on HomeLink
®and/or com-
patible products is also available online at
http://www.homelink.com.
Notes on the declaration of conformity
(
Ypage 26).
USA: FCC ID: CB2HMIHL4
Canada:I C: 279B-HMIHL4
Important safety notes
GWARNING
When you operate or program the garage door
with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage door. There is arisk of injury.
When using the integrated garage door
opener, always make sure that nobody is
within the range of movement of the garage
door.
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. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
228Features
Stowage and features

XPull out oil dipstick:.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;,the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) of engine oil.
Adding engine oil
GWARNING
Certain components in the engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Workingint he engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
If engine oil comes into contact with hot com- ponentsint he engine compartment ,itmay
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck.L et the engine cool down and
thoroughly clean the engine oil off the com-
ponentsb efore starting the engine.
HEnvironmenta lnote
When adding oil, take care not to spill any. If
oil enter sthe soil or waterways, it is harmful to
the environment.
!Use only engine oils and oil filters that are
approved for vehicles with aservice system. A
list of the engine oils and oil filters that have
been tested and approved in accordanc ewith
Mercedes-Benz Specifications for Service
Products is availableata ny authorized
Mercedes-Benz Center. The following cause engine failure or damage
to the exhaust system:
RUse of engine oils and oil filters that have
not been expressly approved for the service
system
RReplacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
RUse of engine oil additives
!Do not add too much oil. If the oil level is
above the "max" mark on the dipstick ,too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter .Have excess oil siphoned off.
Example: engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick ,add 1.1 US qt (1.0 liter) of
engine oil.
XReplace cap :on the filler neck and turn
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick
(Ypage 234).
Further information on engine oil (
Ypage 292).
Checking and adding other service
products
Checking coolant level
GWARNING
Certain components in the engine compart-
ment ,such as the engine, radiator and parts
of the exhaust system, can become very hot.
Engine compartment235
Maintenance and care
Z

amessage appearsint hemultifunction display
prompting you to add washer fluid (Ypage 201).
Further informatio nonwindshield washer fluid/
antifreeze(
Ypage 294).
Overview of th eengine compartment
Example :gasoline engine
:
Engineo il cap
;Oil dipstick
=Brake fluid reservoir
?Washerf luid reservoir
ACoolante xpansion tank
ASSYST PLUS
Service messages
The ASSYS TPLUSs erviceinterval display
inform syou of th enexts ervic edue date.
Information on th etype of servic eand service
intervals (see th eseparate Maintenance Book-
let).
You can obtain further informatio nfroma n
authorized Mercedes-Ben zCenter or at
http://www.mbusa.com (USAo nly).
iThe ASSYS TPLUSs erviceinterval display
does no tshow any informatio nontheengine
oil level. Observ ethe note sont heengine oil
level(
Ypage 234).
The multifunction display showsas ervicemes-
sage for several seconds, e.g.:
RServiceAin..D ays
RServiceADue
RServiceAExceeded by .. Days
Dependingont heoperatin gconditionsoft he
vehicle ,the remainin gtimeord istanc euntil the
nex tservic edue dateisd isplayed.
The letter A
orB,possibly in connectio nwith a
number or another letter, showst hetype of ser-
vice. A
stands for aminor servic eand Bfor a
major service.
You can obtain further informatio nfroma n
authorized Mercedes-Ben zCenter.
The ASSYS TPLUSs erviceinterval display does
no ttak eintoa ccounta ny periods of tim eduring
whicht hebattery is disconnected.
Maintaining th etime-dependents ervicesched-
ule:
XNoted own th eservic edue dated isplayedin
th em ultifunction display before disconnect-
ing th ebattery.
or
XAfte rreconnectin gthe battery, subtrac tthe
battery disconnectio nperiods from th eser-
vic ed ates hownont hedisplay.
Hiding aservice message
XPres sthe a or% button on th esteering
wheel.
Displaying service messages
XSwitch on th eignition.
XPres sthe = or; button on th esteering
wheel to selectt heServ.menu.
XPres sthe 9 or: button to selectt he
ASSYSTPLUSsubmenu and confir mbypress-
ing the abutton.
The servic edue datea ppearsint hemulti-
function display.
Information abou tService
Resettin gthe ASSYST PLUS service
interval display
!If th eASSYSTP LUSs erviceinterval display
has been inadvertently reset,t hiss ettin gcan
be correcte dataqualified specialist work-
shop.
Hav eservic ework carried out as describe din
th eM aintenance Booklet. This may otherwise
ASSYST PLUS237
Maintenance and care
Z

lead to increased wear and damage to the
majorassemblies or the vehicle.
Aq ualified specialist workshop, e.g. an author-
ized Mercedes-Ben zCenter, will reset the
ASSYS TPLUS service interval display after the
service work has been carried out. You can also
obtain further information on maintenance
work,f or example.
Specia lservice requirements
The specified maintenance interval takes only
the normal operation of the vehicle into
account .Under arduous operating condition sor
increased load on the vehicle, maintenance
work must be carried out more frequently, for
example:
Rregular cit ydrivingw ith frequent intermediate
stops
Rif the vehicle is primarily used to travel short
distances
Ruse in mountainous terrain or on poor road
surfaces
Rif the engin eisoften left idling for long periods
Under these or similar conditions, have, for
example, the air filter, engin eoil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must be
checked more often. Further information can be
obtained at aqualified specialist workshop, e.g.
an authorized Mercedes-Ben zCenter.
Driving abroad
An extensive Mercedes-Ben zService network is
also available in other countries. You can obtain
further information froma ny authorized
Mercedes-Ben zCenter.
Care
Notes on care
HEnvironmental note
Dispose of emptyp ackaging and cleaning
cloths in an environmentally responsible man-
ner.
!When cleaning your car, do not use:
Rdry, coarse or hard cloths
Rabrasive cleaning agents
Rsolvents
Rcleaning agent scontaining solvents
Do not scrub.
Do not touc hthe surfaces and films with hard
objects, e.g. rings or ice scrapers. Otherwise,
you may scratc hordamage the surfaces and
films.
!Do not park your vehicle for along period of
tim edirectly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosionoft he braked iscs and pads. Therefore,
drive for afew minutes after cleaning. By
heatin gupthe brakes, the braked iscs and
pads dry. The vehicle can the nbeparked for a
long period of time.
Regular care of your vehicle is acondition for
retainin gthe quality in the long term.
Use care products and cleaning agent srecom-
mended and approved by Mercedes-Benz.
Washing th evehicle and cleaning the
paintwork
Automatic car wash
GWARNING
Braking efficienc yisreduced after washing
the vehicle. There is arisk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
condition suntil full braking power is restored.
!When DISTRONIC PLUS or the HOL Dfunc-
tion is activated, the vehicle brakes automat-
ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOL Dfunction in
the followingors imilar situations:
Rwhen towingthe vehicle
Rin the car wash
!It is preferable to use car washes with
adjustable high-pressure pre-cleaning that
corresponds to the specification for the Cab-
riolet program. In car washes that use high
water pressures, there is arisk that asmall
amount of water may leak int othe vehicle.
238Care
Maintenance and care

rubbish. They must be col-
lected separately and dis-
posed of in an environmen-
tallyresponsible recycling
system.
Dispose of batterie sinan
environmentally responsi-
ble manner. Take dis-
charge dbatterie stoaq uali-
fied specialist workshop or
to ac ollection point for
used batteries.
!Have the battery checked regularl yata
qualified specialist workshop.
Observe the service interval sinthe Mainte-
nance Booklet or contact aqualified specialist
workshop for more information.
!Always have work on batterie scarrie dout at
aq ualified specialist workshop.
Shoul dit, in exceptionalc ircumstances, be
absolutel ynecessary to disconnect the 12-
volt battery yourself, please observe the fol-
lowing:
RSecure the vehicletop revent it from rolling
away.
RSwitch off the ignition.
RDisconnect the negative terminal first and
then the positive terminal.
The transmission is locked in position j
after disconnecting the battery.
After the work has been done, install the bat- tery and replace the cover of the positive ter-
minal clamp firmly.
Comply with safety precautions and take pro-
tective measures when handling batteries.
Ris kofe xplosion.
Fire, open flame sand smoking are
prohibited when handling the bat-
tery. Avoid creating sparks.
Battery acid is caustic. Avoid contact
with skin, eye sorclothing.
Wears uitable protective clothing,
especially gloves, apro nand face-
guard. Rinse any acid spills immediately
with clearw
ater. Contact aphysician
if necessary.
Weare ye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz recom-
mends that you only use batterie swhich have
been tested and approved for you rvehicleb y
Mercedes-Benz. These batterie sprovide
increase dimpact protection to prevent vehicle
occupants from suffering acid burns should the
battery be damaged in the event of an accident.
In order for the battery to achieve the maximum
possible service life,itm ust alwaysbesuffi-
ciently charged.
Like other batteries, the vehicleb attery may
discharge over time if you do not use the vehicle.
In this case, have the battery disconnected at a
qualified specialist workshop.Y ou can also
charge the battery with acharge rrecommended
by Mercedes-Benz. Contact aqualified special-
ist workshop for further information.
Have the battery condition of charge checked
more frequently if you use the vehiclem ainlyfor
short trips or if you leave it standing idlef or a
lengthy period. Consult aqualified specialist
workshop if you wis htoleave you rvehicle
parked for along periodoft ime.
Remove the SmartKey if you park the vehicle
and do not require any electricalc onsumers.
The vehiclew illt hen use very little energy,t hus
conserving battery power.
If the powers upply has been interrupted ,e.g. if
you reconnect the battery ,you wil lhave to:
Rreset the function for automatically folding
the exterior mirrors in/out by folding the mir-
rors out once (
Ypag e91)
Rset the clock
On vehicles with amultimedia system, the
time is set automatically.
252Battery (vehicle)
Breakdown assistance