2018 MERCEDES-BENZ SLC ROADSTER ECU

Messagessee Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
Mobile phone
Connecting (Bluetooth
®inter-
face) ..............................................2 15
Connecting (device manager) ........2 16
Frequencies ................................... 288
Installatio n..................................... 288
Menu (on-board computer) ............ 169
Transmissiono utput (maximum ).... 288
Modifying the programming
(SmartKey) ...........................................6 6
MOExtended tires .............................. 247
Mountingw heels
Lowering the vehicle. ..................... 284
Mounting anew wheel. .................. 283
Preparing the vehicle. ....................281
Raising the vehicle ......................... 281
Removing awheel .......................... 283
Securing the vehicle against roll-
ing away ........................................ 281
MP3
Operation ....................................... 169
see also Digita lOperator's Man-
ua l..................................................2 11
Multifunctio ndisplay
Function/notes .............................1 65
Permanent display. ........................ 172
Multifunctio nsteering wheel
Operating the on-board computer .. 164 Overview .......................................... 33
Multimedia system
Switching on and off ......................2 12
Music files
see also Digita lOperator's Man-
ua l.................................................. 211
N
Navigation
Entering adestination .................... 213
Menu (on-board computer) ............ 167
see also Digital Operator's Man-
ua l.................................................. 211 Navigation menu
Important safety notes .................. 167
NECK-PRO hea drestraints
Important safety notes .................... 52
Operation ......................................... 52
Resetting triggered .......................... 53
Note sonb reaking-i nanewvehi-
cle ....................................................... 115
O
Occupant Classification System
(OCS)
Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Occupant safety
Air bags ........................................... 43
Automati cmeasures afte ranacci-
dent ................................................. 53
Bel twarning ..................................... 42
Childre ninthe vehicl e..................... 53
Important safety notes .................... 38
Introduction to the restraint sys-
tem .................................................. 38
Occupant Classification System
(OCS) ............................................... 45
PASSENGER AIR BAG indicator
lamps ............................................... 39
Pets in the vehicl e........................... 56
PRE-SAFE
®(anticipatory occu-
pant protection) ............................... 53
Restraint system warning lamp ........ 38
Seatb elt. ......................................... 39
OCS
Conditions ....................................... 46
Faults ............................................... 49
Operation ......................................... 46
System self-test ............................... 48
Odometer ........................................... 166
Oil
see Engine oil
On-board computer
AMG menu ..................................... 175
Assistance menu ........................... 170
Audio menu ................................... 168
Convenience submenu .................. 174
Index13

From inside the vehicle (central
unlocking button) ............................. 71
Upshift indicator
(on-board computer, Mercedes-
AMG SLC 43) .................................1 75
USB devices
Connecting to the MediaI nter-
face ............................................... 218
V
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 198
Electronics ..................................... 288
Equipment ....................................... 24
Individua lsettings .......................... 172
Limited Warranty .............................2 8
Loading .......................................... 271
Locking (in an emergency) ............... 72
Locking (SmartKey) .......................... 65
Lowering ........................................ 284
Maintenance .................................... 25
Parking for along period. ............... 133
Pulling awa y................................... 118
Raising ........................................... 281
Reporting problems ......................... 27
Securing from rolling away ............ 281
Tow-starting ................................... 256
Towing away .................................. 256
Transporting .................................. 258
Unlocking (i nanemergency) ........... 72
Unlocking (SmartKey). ..................... 65
Vehicl edata. .................................. 295
Vehicl ebattery
see Battery (vehicle)
Vehicl edata ....................................... 295
Vehicl edimensions ........................... 295
Vehicl eemergencyl ocking ................ 72
Vehicl eidentificatio nnumber
see VIN
Vehicl eidentificatio nplate .............. 289
Vehicl etoolkit.................................. 245
Video
Operating the DVD ......................... 169
see also Digital Operator's Man-
ual.................................................. 211 VIN
Seat. .............................................. 290
Type plate ...................................... 289
W
Warning and indicator lamps
ABS ................................................ 204
Active Brake Assist ........................ 209
Brake Assist ................................... 209
Brakes ........................................... 204
Check Engine ................................. 207
Coolant .......................................... 207
Distance Pilo tDISTRONIC ............. 209
Distance warning ........................... 209
ESP
®.............................................. 205
ESP®OFF ....................................... 206
Fue ltank ........................................ 207
Generaln otes ................................ 202
Parking brake ................................ 206
PASSENGER AIR BAG ...................... 39
Reserve fue l................................... 207
Restraint system ............................ 206
Seatb elt. ....................................... 203
SPORTh andling mode. .................. 206
Tire pressure monitor .................... 210
Warning triangle ................................ 244
Warranty .............................................. 24
Washer fluid
Displa ymessage ............................ 201
Weather display (COMAND)
see also Digital Operator's Man-
ual.................................................. 211
Wheel and tire combinations
Tires ............................................... 284
Wheel bolt tightenin gtorque ........... 284
Wheel chock ...................................... 281
Wheels
Changing awheel .......................... 280
Checking ........................................ 260
Cleaning ......................................... 241
Emergency spare wheel. ................ 285
Important safety notes .................. 260
Information on driving .................... 260
Interchanging/changing ................ 280
Mounting anew wheel. .................. 283
Mounting awheel .......................... 281
Overview ........................................ 260
20Index

Diagnostics connection
The diagnosticsconnectio nisonlyi ntende dfor
th ec onnectio nofdiagnostic equipmen tata
qualified specialis tworkshop .
GWARNING
If you connec tequipmen ttoadiagnostic s
connection in th evehicle, it may affec tthe
operation of vehicle systems .Asaresult,the
operatin gsafet yofthe vehicle could be affec -
ted. There is ariskofana ccident.
Only connec tequipmen ttoadiagnostic scon-
nection in th evehicle, whic hisapproved fo r
your vehicle by Mercedes-Benz.
GWARNING
Objects in th edriver's footwell may restric t
th ec learanc earound th epedals or bloc ka
depressed pedal. Thi sjeo pardizes th eoper-
atin gand road safet yofthe vehicle. There is a
ris kofana ccident.
Stow all objects securely in th evehicle so that
they do no tget into th edriver's footwell.
Whe nusingfloormat sorcarpets, mak esure
that they are properly secure dsothatthe yd o
no tslip or obstruct th epedals. Do no tplac e
severa lfloormat sorcarpetsont opof on e
another.
!If th eengineiss witched of fand equipmen t
on th ediagnostic sconnectio nisused,the
starter battery may discharge.
Connectin gequipmen ttothediagnostic scon-
nection can lead to emission smonitor ingi nfor -
mation bein greset ,for example. Thi smay lead
to th evehicle failin gtomeetthe requirements of
th en exte mission stestd urin gthe main inspec-
tion .
Qualified specialist workshop
An authorized Mercedes-Ben zCente risaq uali-
fie ds pecialis tworkshop .Ithas th eneces sary
specialis tkno wledge ,too ls and qualification sto
correctl ycarry out th eworkr equire donyour
vehicle. Thi sisespecially th ecasef or wor krel-
evant to safety.
Observ ethe note sint heMaintenance Booklet .Always hav
ethe followin gworkc arrie dout at an
authorized Mercedes-Ben zCenter:
Rwor krelevant to safet y
Rserviceand maintenance wor k
Rrepair work
Ralterations, installation wor kand modifica-
tion s
Rworkone lectronic component s
Correct use
If you remov eany warnin gstickers, you or oth-
ers could fail to recogniz ecertai ndangers.
Leave warnin gsticker sinposition .
Observ ethe followin ginformati on when drivin g
your vehicle:
Rth es afet ynotes in this manual
Rtechnical dat afor thev ehicle
Rtraffic rule sand regulation s
Rlaws and safet ystandard spertainin gtomotor
vehicles
Problem swithy ourv ehicle
If you should experience aproblem wit hyour
vehicle, particularly on ethaty ou believe may
affec tits saf eoperation ,weurgey ou to contact
an authorized Mercedes-Ben zCente rimmedi-
ately to hav ethe problem diagnosed and recti -
fied. If th eproblem is no tresolved to your sat -
isfaction ,please discus sthe problem again wit h
an authorized Mercedes-Ben zCente ror,if nec-
essary, contact us at on eofthefollowin g
addresses.
In th eUSA
Customer Assistanc eCente r
Mercedes-Ben zUSA,LLC
3M ercedes Drive
Montvale, NJ 07645-0350
In Canad a
Customer Relation sDepartmen t
Mercedes-Ben zCanada, Inc.
98 Vanderhoo fAvenu e
Toronto ,Ontar io M4 G4C9
Reporting safet ydefect s
USAo nly:
Operating safety27
Introduction
Z

The following text is published as required of
manufacturers under Title 49, Code of U.S. Fed-
eral Regulations, Part 575 pursuant to the
"National Traffic and Motor Vehicle Safety Act of
1966".
If you believe that your vehicle hasadefect
which could cause acrash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA)ina ddition to notifying Mercedes-Benz
USA,L LC.
If NHTSA receives similar complaints ,itmay
open an investigation, and if it finds that asafety
defect exists in agroup of vehicles, it may order
ar ecall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA,L LC.
To contact NHTSA,y ou may call the Vehicle
Safety Hotlin etoll-free at
1-888-327-4236(TTY: 1-800-424-9153); go to
http://www.safercar.gov ;orwrite to: Admin-
istrator ,NHTSA,4 00 SeventhS treet, SW.,
Washington ,DC20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Observe the notes in this Operator's Manual
regarding the correcto peration of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation
of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident,r escue services can use
the QR code to quickly find the appropriate res- cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in acompact form, e.g. the
routing of the electric cables.
You can find more information under http://
portal.aftersales.i.daimler.com/public/ content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data storage
Aw
ide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
Rvehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
mentst he state of acomponent, amodule, a
system or the surroundings.
These include, for example:
Roperating conditions of system components,
e.g. fluid levels
Rthe vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment,l ateral acceleration, accelerator pedal
position
Rmalfunction sand defects in important system
components, e.g. lights, brakes
Rvehicle reactionsa nd operating conditions in
special driving situations, e.g. air bag deploy-
ment,i ntervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to:
Rassist in recognizing and rectifying malfunc-
tions and defects
Ranalyze vehicle functions, e.g. after an acci-
dent
Roptimize vehicle function
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example:
Rrepair services
Rservice processes
Rwarranties
Rquality assurance
28Data stored in the vehicle
Introduction

occupant in the best position in relation to the
air bag.
The seat belt system comprises:
RSeat belts
REmergency TensioningDevices and seat belt
force limiters
If the seat belt is pulled quickly or sharply by the
seat belt guide, the inertia reel locks. The belt
strap cannot be extracted any further.
The Emergency TensioningD evice tightensthe
seat belt in an accident,p ulling the belt close
against the body. However it does not pull the
vehicle occupant back in the direction of the
backrest.
The Emergency TensioningD evice does not cor-
rect an incorrect seat position or the routing of
an incorrectly fastened seat belt.
When triggered, aseat belt force limiter helps to
reduce the force exerted by the seat belt on the
vehicle occupant.
The seat belt force limiters are synchronized
with the front air bags which absorb part of the
deceleration force. This can reduce the force
exerted on the vehicle occupantsd uring an acci-
dent.
!If the front-passenger seat is not occupied,
do not engage the seat belt tongue in the
buckle on the front-passenger seat. Other-
wise, in the event of an accident the Emer-
gency TensioningD evice and the side impact
air bag, in addition to other systems, may be
triggered and have to be replaced.
Important safety notes
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehicle
occupantss hould correctly fasten their seat
belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it cannot
perform its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
Always ensure that all vehicle occupantsh ave
their seat belts fastened correctly and are sit-
ting properly.
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all vehicle occupants:
Rhave fastened their seat belts correctly
(Ypage 41)
Rhave the seat and head restraint adjusted
properly (Ypage 84)
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident,y ou could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
Persons less than 5ft(1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of injury or even fatal injury.
For this reason, alwayss ecure persons under
5ft( 1.50 m) tall in suitable additional restraint
systems.
40Occupant safety
Safety

Ifac hild younger than twelve years old and
under 5ft(1.50m)inh eight is travelingint he
vehicle:
Ralways secur ethe child in achild restraint
system suitable for this Mercedes-Ben zvehi-
cle. The child restraint system must be appro-
priatetot he age, weight and size of the child.
Ralways observe the instructions and safety
notes on "Children in the vehicle"
(
Ypage 53) in addition to the child restraint
system manufacturer'si nstallation and oper-
atin ginstructions
Ralways observe the instructions and safety
notes on the "Occupant classification system
(OCS)" (
Ypage 45)
GWARNING
The seat belts may not perform their intended protective function if:
Rthe yare damaged, modified, extremely
dirty, bleache dordyed
Rthe seat belt buckle is damaged or
extremely dirty
Rthe Emergency Tensionin gDevices, belt
anchoragesori nertia reels have been modi-
fied.
Seat belts may be damaged in an accident,
althoug hthe damage may not be visible, e.g.
due to splinters of glass. Modifiedord amaged
seat belts may tear or fail, e.g. in an accident.
ModifiedE mergency Tensionin gDevices
could accidentally trigger or fail to deploy
when necessary. This poses an increased risk
of injury or even fatal injury.
Never modifyt he seat belts,Eme rgency Ten-
sioning Devices, belt anchoragesa nd inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean .Follow-
ing an accident ,have the seat belts checked
immediately at aqualified specialist work-
shop.
Only use seat belts that have been approved for
your vehicle by Mercedes-Benz.
Proper use of th eseat belts
Observe the safetyn otes on the seat belt
(Ypage 40).
All vehicle occupant smust be wearingt he seat
belt correctly beforeb eginningthe journey. Also
make sure that all vehicle occupant sare always
wearing the seat belt correctly while the vehicle
is in motion.
When fastenin gthe seat belt, always make sure
that:
Rthe seat belt buckle tongue is inserted only
int ot he belt buckle belonging to that seat
Rthe seat belt is pulled tigh tacross your body
Avoid wearingb ulky clothing,e.g. aw inter
coat.
Rthe seat belt is not twisted
Only the ncan the forces which occur be dis-
tributed over the area of the belt.
Rthe shoulder section of the belt is routed
across the center of your shoulder
The shoulder section of the seat belt should
not touc hyour nec korber outed under your
arm or behindy our back.
Rthe lap belt is taut and passes across your lap
as low down as possible
The lap belt must always be routed across
your hip joints and not across your abdomen.
This applies particularly to pregnant women.
If necessary, push the lap belt down to your
hip join tand pull it tigh tusing the shoulder
section of the belt.
Rthe seat belt is not routed across sharp, poin-
ted or fragile objects
If you have such item slocated on or in your
clothing ,e.g. pens ,keys or eyeglasses,s tore
these in asuitable place.
Ronly one personisu singaseat belt
Infant sand children must never travel sitting
on the lap of avehicle occupant .Inthe event
of an accident ,the yc ould be crushed
betwee nthe vehicle occupant and seat belt.
Robject sare never secured with aseat belt if
the seat belt is also being used by one of the
vehicle's occupants
Also ensure that there are never objects
betwee napersona nd the seat, e.g. cushions.
Seat belts are only intended to secur eand
restrain vehicle occupants. Always observe the
notes in the "Stowage options/compartments"
section for securing objects, luggage or loads
(
Ypage 219).
Occupant safety41
Safety
Z

Fastening seat belts
Observethe safet ynotes on th eseat belt
(Ypage 40 )and the notes on correct us eofseat
belts (Ypage 41).
Basic illustration
XAdjust the sea t(Ypage 84).
The sea tbackres tmustbeinana lmost
upright position.
XPull the sea tbelts moothl youtof sea tbelt
guide =and engage belt tongue ;into belt
buckle :.
The sea tbeltont he driver’s sea tand the
front-passenger sea tmay be tight enedauto-
matically, see "Belt adjustment"
(
Ypage 42).
XIf necessary,p ullupont he shoulde rsection
of the sea tbelttot ighten the belt across your
body.
In order to attach the child restraint system
securelyint he vehicle, the sea tbeltont he front-
passenger sea tise quippe dwithas pecia lseat
belt retractor. Further informatio nonthe "Spe-
cia lsea tb eltr etractor" (
Ypage 54).
Releasin gseatb elts
!Make sure thatt he seatbeltisf ully rolle dup.
Otherwise, the sea tbeltorb eltt ongu ewillb e
trappe dinthe door or in the sea tmechanism.
Thi scould damag ethe door, the door trim
panel and the sea tbelt. Damaged sea tbelts
can no longer fulfil lthei rprotective function
and must be replaced.V isitaquali fied spe-
cialist workshop.
XPress the release button in the belt buckle,
hol dthe belt tongu efirmly and guid ethe belt
back.
Seat belt adjustment
Mercedes-AMG vehicles: the "beltadjust-
ment" functio nisn ot available.
The belt adjustment is aconvenience function
integrated into PRE-SAFE
®.W itht hisf unction,
the driver'sa nd front-passenger sea tbelts are
adjusted to the uppe rbodyoft he vehicl eoccu-
pant.
The sea tbelts trapw ills lightly tighten if:
Rthe belt tongu eisinserte dinto the buckle and
Rthe ignition is switched on
The sea tbelta djustment will appl yacertain
tightening force if any slack is detectedb etween
the vehicl eoccupant and the sea tbelt. Do not
grabh oldoft he seatbelt.
The belt adjustment can be switched on and off
using the on-board compute r(
Ypage 174).
Beltwarning for the drive rand front
passenger
The 7 seatbeltw arning lamp in the instru-
ment cluster is areminder thata llvehicl eoccu-
pants must wear thei rseatb elts. It may light up
continuously or flash. In addition, ther emaybe
aw arning tone.
Regardless of whethe rthe driver'ss eatb elth as
already been fastened ,the 7 seatbeltw arn-
ing lamp lights up for sixs econds each time the
engine is started .Ifthe doors are closed and the
driver'sorf ront-passenger sea tbelth as not
been fastened ,the 7 seatbeltw arning lamp
lights up agai nafterthe sixs econds. As soona s
the driver' sand front-passenger sea tbelts are
fastened or afront door is opene dagain ,the
7 seatbeltw arning lamp goe sout.
If the driver'ss eatb eltisn ot fastened afte rthe
engine is started ,anadditional warning tone will
sound. The warning tone switches off afte rsix
seconds or once the driver'ss eatb eltisf as-
tened.
If the vehicle's speed exceed s15mph
(25 km/h )once and the driver'sa nd front-
passenger sea tbelts are not fastened ,awarning
tone sounds. Awarning tone also sounds with
increasing intensity for 60 seconds or unti lthe
driver or front passenger have fastened their
sea tbelts.
42Occupant safety
Safety

If the driver or front passenger unfasten their
seat belts during the journey, the seat belt warn-
ing is activated again.
Air bags
Introduction
The installation point of an air bag can be rec-
ognized by the AIRBAG marking.
An air bag complements the correctly fastened
seat belt. It is no substitute for the seat belt. The
air bag providesa dditional protection in appli-
cable accident situations.
Not all air bags are deployed in an accident. The
different air bag systems function independ-
ently from one another (
Ypage 50).
However, no system available today can com-
pletelye liminate injuries and fatalities.
It is also not possible to rule out arisk of injury
cause dbyana ir bag due to the high speed at
which the air bag must be deployed.
Important safety notes
GWARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed .This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
Rhave fastened their seat belts correctly,
including pregnant women
Rare sitting correctly and maintain the great-
est possible distance to the air bags
Rfollow the following instructions
Alway smake sure that there are no objects
between the air bag and the vehicle's occu-
pants.
RAdjust the seats properlyb efore beginning
you rjourney. Alway smake sure that the seat
is in an almostu pright position. The center of the head restraint must support the head at
aboute
ye level.
RMove the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely.
ROnly hold the steering wheel on the outside.
This allows the air bag to be full ydeployed.
RAlway sleana gainst the backrest whiled riv-
ing. Do not leanf orward or leanagainst the
door or side window.Y ou may otherwise be in
the deployment area of the air bags.
RAlway skeep you rfeet in the footwell in front
of the seat. Do not put you rfeet on the dash-
board,f or example.Y our feet may otherwise
be in the deployment area of the air bag.
RFor this reason, always secure persons less
than 5ft(1.5 0m )tall in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If ac hildist raveling in your vehicle, also
observe the following notes:
RAlway ssecure childrenu nder twelve years of
age and less than 5ft(1.50 m)tallins uitable
child restraint systems.
ROnlys ecureac hild in arearward-facing child
restraint systemo nthe front-passenge rseat
when the front-passenge rfront ai rbag is
deactivated .Ifthe PASSENGER AIR BAG OFF
indicator lamp is permanentl ylit,t he front-
passenge rfront ai rbag is deactivated
(
Ypage 39).
RAlway sobser ve the instructions and safety
note sont he "Occupant Classification System
(OCS) "(
Ypage 45) and on "Children in the
vehicle" (Ypage 53 )ina ddit iontot he child
restraint systemm anufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag fromf unctioningcorrectly. Before
startin gyourjourney and to avoi drisks resulting
fromt he spee dofthe airbag as it deploys, make
sure that:
Rthere ar enopeople, animals or objects
between the vehicl eoccupants and an ai rbag
Rthere ar enoobjects between the seat, door
and B-pillar
Rno accessories, such as cup holders, are
attache dtothe vehicl ewithint he deployment
Occupant safety43
Safety
Z