ignition MERCEDES-BENZ SL ROADSTER 2019 Owner's Manual

Panic
alarm X
To activate: press0033button 0043for at
least onesecond.
A visual andaudib lealarm istriggered ifthe
alarm system isarmed.
X To deactivat e:press 0033button 0043again.
or X Insert theSmartK eyinto theignition lock.
or X Press theKEYLE SS-GO Start /Stopbutton.
The KEYLE SS-GO key must beinthe vehicle. Occupant
safety Introduct
iontothe restr aintsystem
The restraint systemcanreduce therisk of
vehicle occupants comingintocontactwith
parts ofthe vehicle's interiorinthe event ofan
accident. Therestraint systemcanalso reduce
the forces towhich vehicle occupants aresub-
ject edduring anaccident.
The restraint systemincludes thefollowing
componen ts:
R seat beltsystem
R air bags
The componen tsof the restraint systemwork
in conj unction witheach other. Theycanonly
deploy theirprotect ivefunct ionif,at all times,
all vehicle occupants:
R have fastened theirseatbelts correct ly
(Y page 43)
R have theseat andhead restraint adjusted
properly (Ypage 97)
As the driver, youalso have tomake surethat
the steering wheelisadjusted correctly. Observe
theinformation relatingtothe correct
driver's seatposition (Ypage 97).
You also have tomake surethatanair bag can
inflate properly ifdeploye d(Y page 45).
An airbag supplements acorrect lyworn seat
belt. Asanadditional safetydevice, theairbag
increases thelevel ofprotect ionforvehicle
occupants inthe event ofan accident. For
example, if,inthe event ofan accident, the
protect ionoffered bythe seat beltissufficient,
the airbags arenot deploye d.When anacci-
dent occurs, onlytheairbags thatincrease
protect ioninthat particular accidentsituation
are deploye d.However, seatbelts andairbags
generally donot protect againstobjectspene-
tratin gthe vehicle fromtheoutside.
Inform ationonrestraint systemoperation can
be found under "Triggering ofthe Emergen cy
Tensioning Devicesandairbags"
(Y page 53).
See "Chil dren inthe vehicle" forinformation
on children traveling withyouinthe vehicle as
well ason child restraint systems
(Y page 57). Import
antsafety notes G
WARNING
Modifications tothe restraint systemmay
cause itto no longer workasinten ded.The
restraint systemmaythen notperform its
inten dedprotect ivefunct ionand may failin
an accident ortrigger unexpect edly,for
example. Thisposes anincreased riskof
injury oreven fatalinjury.
Never modify partsofthe restraint system.
Never tamper withthewiring, theelectron ic
componen tsor their software.
If it is necessary tomodify componen tsof the
restraint systemtoaccommodate aperson
with disabil ities,contactanauthorized
Mercedes-B enzCenter fordetails. USAonly:
for further information contactour Customer
Assistanc eCenter at1-80 0FOR-MERCED ES
(1‑800‑3 67‑6372).
Mercedes-B enzrecommen dsthat youonly use
driving aidswhich havebeen approved specifi-
cally foryour vehicle byMercedes-B enz. 40
Occ
upantsafetySafety

section
forsecuring objects,luggageorloads
(Y page 249).
Fastening seatbelts Observe
thesafety notesonthe seat belt
(Y page 42)and thenotes oncorrect useof
seat belts (Ypage 43). Basic
illustration
X Adjust theseat (Ypage 97).
The seat backrest mustbeinan almost
upright position.
X Pull theseat beltsmoothly outofseat belt
guide 0087and engage belttongue 0044into
belt buckle 0043.
The seat beltonthe driver’s seatandthe
front -passenger seatmaybetightened auto-
matically ,see "Belt adjustment"
(Y page 44).
X Ifnecessary, pullupon the shoulde rsection
of the seat belttotighten thebelt across
your body.
In order toattach thechild restraint system
securely inthe vehicle, theseat beltonthe
front -passenger seatisequip pedwith aspe-
cial seat beltretractor .Further information on
the "Special seatbeltretractor "(Y page 57).
Releasing seatbelts !
Make
surethattheseat beltisfully rolled
up. Otherwise, theseat beltorbelt tongue
will betrapped inthe door orinthe seat
mechanism. Thiscould damage thedoor,
the door trimpanel andtheseat belt. Dam- aged
seatbelts cannolonger fulfilltheir
protective functionandmust bereplaced.
Visit aqual ified speciali stworkshop.
X Press therelease buttoninthe belt buckle,
hold thebelt tongue firmlyandguide the
belt back.
Seat beltadjustment The
belt adjustment isaconven iencefunction
integrated intoPRE-SA FE®
.With thisfunction,
the driver's andfront -passenger seatbelts are
adjusted tothe upper bodyofthe vehicle
occupant.
The seat beltstrap willslightly tightenif:
R the belt tongue isinserted intothebuckle
and
R the ignition isswitched on
The seat beltadjustment willapply acertain
tightening forceifany slack isdetected
between thevehicle occupant andtheseat
belt. Donot grab holdofthe seat belt.
The belt adjustment canbeswitched onand
off using theon-board computer
(Y page 202).
Belt warning forthe driver andfront
passenger The
0076 seatbeltwarning lampinthe instru-
ment cluster isareminder thatallvehicle
occupants mustweartheirseatbelts. Itmay
light upcont inuously orflash. Inaddition,
there maybeawarning tone.
Regard lessofwhether thedriver's seatbelt
has alread ybeen fastened, the0076 seatbelt
warning lamplights upfor sixseconds each
time theengine isstarted. Ifthe doors are
closed andthedriver's orfront -passenger seat
belt hasnotbeen fastened, the0076 seatbelt
warning lamplights upagai nafter thesixsec-
onds. Assoon asthe driver's andfront -
passenger seatbelts arefastened orafront
door isopened again,the 0076 seatbeltwarn-
ing lamp goesout.
If the driver's seatbeltisnot fastened after
the engine isstarted, anadditional warning
tone willsound. Thewarning toneswitches off
after sixseconds oronce thedriver's seatbelt
is fastened.
If the vehicle's speedexceeds 15mph
(25 km/h) onceandthedriver's andfront - 44
Occ
upant safetySafety

Occupant
Classification System
(OCS)
Introd uction The
Occupant Classification System(OCS)cat-
egorizes theperson inthe fron t-passenger
seat. Depen dingonthat result, thefron t-
passenger frontair bag and front-passenger
kn ee bag areeither enabled ordeactivat ed.
The system doesnotdeactivat e:
R the side impact airbag
R the headbag
R the Emer gencyTension ingDevic es
Requ irement s To
be classified correctly,the fron tpassenger
must sit:
R with theseat beltfasten edcorr ectly
R in an almost upright position withtheir back
against theseat backr est
R with their feetrestin gon the floor, ifpossi-
ble
If the fron tpassenger doesnotobserve these
con ditions ,OCS mayproduce afalse classifi-
cation ,e.g. because thefron tpassenger:
R tran sfers theirweight bysupportin gthem-
selves onavehicle armrest
R sits insuch away that their weight israised
from theseat cushion
If you installachild restraint system onthe
fron t-passenger seat,besure toobserve the
corr ectposition ingofthe child restraint sys-
tem. Never placeobjectsunder orbehind the
child restraintsystem, e.g.acushion. Fully
retr act the seat cushion length.The entire
base ofthe child restraintsystem mustalway s
rest onthe seat cushion ofthe fron t-
passenger seat.Thebackr estofthe forward-
facing childrestraint system mustlieasflat as
possible againstthebackr estofthe fron t-
passenger seat.
The child restraintsystem mustnottouch the
roof orbe subject edtoaload bythe head
rest raint .Adj ust the angle ofthe seat backr est
and thehead restraintposition accordingly.
Only thencanOCS beguaranteed tofunc tion
corr ectly.Always observe thechild restraint
system manufact urer'sinstallation andoperat-
ing inst ruct ions. Occupant
Classification Systemopera-
tion (OCS) 0043
PAS SENGER AIRBAG ONindicat orlamp
0044 PAS SENGER AIRBAG OFFindicat orlamp
The indicat orlamps informyou whether the
fron t-passenger frontair bag isdeactivat edor
enabled.
X Press theStart/ Stop button onceor twice,
or turn theSmart Keytoposition 0047or0048 in
the ignition lock.
The system carriesoutself-diagn ostics.
The PASSENGER AIRBAG OFFand
PAS SENGER AIRBAG ONindicat orlamps must
light upsimultaneously forapproximat elysix
secon ds.
The indicat orlamps display thestatusofthe
fron t-passenger frontair bag.
R PAS SENGER AIRBAG ONlights upfor
60 secon ds,subsequently bothindicat or
lamps areoff(PASS ENGERAIR BAG ONand
OFF): thefron t-passenger frontair bag is
able todeploy inthe event ofan acciden t.
R PAS SENGER AIRBAG OFFlights up:the
fron t-passenger frontair bag isdeactivat ed.
It will then notbedeployed inthe event of
an acciden t.
If the PAS SENGER AIRBAG ONindicat orlamp
is off, only thePAS SENGER AIRBAG OFFindi-
cator lampshows thestatusofthe fron t-
passenger frontair bag. ThePASSENGER AIR
BAG OFFindicat orlamp maybelitcon tinu-
ously orbe off.
If the statusofthe fron t-passenger frontair
bag changes whilethevehicle isin motion ,an
air bag display message appearsinthe instru-
ment cluster (Ypage 215). When thefron t-
passenger seatisoccupied, alwayspay atten -
tion tothe PAS SENGER AIRBAG OFFindicat or
lamp. Beaware ofthe statusofthe fron t- 48
Occupant
safetySafet y

Up
toaspeed ofapproximately 44mph
(70 km/h), BrakeAssist withcross-t raffic
function mayreact to:
R stationary objectsinthe path ofyour vehi-
cle, e.g. stopped orparked vehicles
R pedestrians inthe path ofyour vehicle
R obstacles crossingyourpath which movein
the detection rangeofthe sensors andare
detected
i If
Brake Assist withcross-t rafficfunction
requires aparticularl yhigh braking force,
preventative passengerprotectionmeasures
(PRE-SAF E®
)are activated atthe same time
(Y page 55).
X Keep thebrake pedaldepressed untilthe
emergency brakingsituation isover.
ABS prevents thewheels fromlocking.
Brake Assist withcross-t rafficfunction is
deactivated andthebrakes function asusua l
agai nif:
R you release thebrake pedal
R there isno longer arisk ofcollision
R no obstacle isdetected infront ofyour vehi-
cle
R you depress theaccelerator pedal
R you activate kickdown Active
BrakeAssis t
General information i
Observe
the"Important safetynotes" sec-
tion (Ypage 60).
Act ive Brake Assist consists ofadistance
warning function withanautonomous braking
function andAdaptive BrakeAssist.
Act ive Brake Assist canhelp youtominimize
the risk ofacollision withthevehicle infront
or reduce theeffects ofsuch acollision.
If Act ive Brake Assist detects thatthere isa
risk ofcollision, youwillbewarned visually
and acousticall y.Ifyou donot react tothe vis-
ual collision warningorthe warning tone,
autonomous brakingcanbeinitiated incritical
situations. Ifyou apply thebrake yoursel fin a
critical situation, AdaptiveBrakeAssist ofthe
Act ive Brake Assist system supports you. Importa
ntsafety notes In
particular, thedetection ofobstacles canbe
impaired if:
R there isdirt onthe sensors oranything else
covering thesensors
R there issnow orheavy rain
R there isinterferenc eby other radarsources
R there arestrong radarreflections, forexam-
ple inparking garages
R anarrow vehicle istraveling infront ,e.g. a
motorbike
R avehicle istraveling infront onadifferent
line
R you aredriving anew vehicle orservicing on
the Active Brake Assist system hasjust
been carried out
Observe theimportant safetynotesinthe
"Breaking-in notes"section (Ypage 125).
Followi ngdamage tothe front endofthe vehi-
cle, have theconfiguration andoperation of
the radar sensor checked ataqual ified spe-
cialist workshop. Thisalso appli estocollisions
at slow speeds wherethereisno visible dam-
age tothe front ofthe vehicle.
Activating/ deactivating Act
ive Brake Assist isautomaticall yactive
after switching onthe ignition.
You canactivate ordeactivate Active Brake
Assist usingtheon-board computer
(Y page 198). When deactivated, thedistance
warning function andtheautonomous braking
function arealso deactivated.
If Act ive Brake Assist isdeactivated, the00D4
symbol appearsinthe assistance graphicdis-
play .
Distance warningfunction General
information
The distance warningfunction canhelp youto
minimize therisk ofafront -end collision witha
vehicle aheadorreduce theeffects ofsuch a
collision. Ifthe distance warningfunction
detects thatthere isarisk ofacollision, you
will bewarned visuallyand acousticall y. Driving
safetysystems
63Safety Z

Up
toaspeed ofapproximately 44mph
(70 km/h), Active Brake Assist withcross-t raf-
fic function mayreact to:
R stationary objectsinthe path ofyour vehi-
cle, e.g. stopped orparked vehicles
R pedestrians inthe path ofyour vehicle
i If
there isan increased riskofacollision,
preventive passengerprotectionmeasures
(PRE-SAF E®
)are triggered (Ypage 55).
If the risk ofcollision withthevehicle infront
remains andyoudonot brake, takeevasive
action oraccelerate significantly, thevehicle
may perform automatic emergency braking,up
to the point offull brake application. Auto-
matic emergency brakingisnot performed
until immediately priortoan imminent acci-
dent.
You canprevent theintervent ionofAct ive
Brake Assist withcross-t rafficfunction atany
time by:
R depressing theaccelerator pedalfurther
R activating kickdown
R releasi ngthe brake pedal
The braking application ofAct ive Brake Assist
with cross-t rafficfunction isended automati-
cally if:
R you maneuver toavoid theobstacle
R there isno longer arisk ofcollision
R an obstacle isno longer detected infront of
your vehicle STEER
CONTROL
General information STEE
RCONTROL helpsyoubytransmitt inga
noticeable steeringforcetothe steering wheel
in the direction requiredforvehicle stabiliza-
tion.
This steering assistance isprovided inparticu-
lar if:
R both right wheels orboth leftwheels areon
a wet orslippe ryroad surface whenyou
brake
R the vehicle startstoskid Importa
ntsafety notes i
Observe
the"Important safetynotes" sec-
tion (Ypage 60).
No steering supportisprovided fromSTEER
CONTROL, if:
R ESP ®
is deactivated
R ESP ®
is malfunctioning
R the steering isfaulty
If ESP ®
is malfunctioning, youwillbeassisted
further bythe electrical powersteering. Protection
againsttheft Immobilizer
X To activate withtheSmart Key:remove
the SmartKey fromtheignition lock.
X To activate withKEYLESS-GO: switchthe
ignition offand open thedriver's door.
X To deactivate: switchonthe ignition.
The immobili zerprevents yourvehicle from
being started without thecorrect SmartKey.
When leaving thevehicle, alwaystake the
SmartKey withyouand lock thevehicle. The
engine canbestarted byanyone withavalid
SmartKey thatisleft inside thevehicle.
i The
immobili zerisalwa ysdeactivated
when youstart theengine.
In the event thattheengine cannot bestar-
ted (yet thevehicle's batteryischarged),
the system isnot operational. Contactan
authorized Mercedes-Benz Centerorcall
1-800 -FOR-MERCedes (inthe USA) or
1-800 -387-0100 (inCanada ). ATA
(anti-theft alarmsystem) 72
Protection
againsttheftSafety

Smar
tKey Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Additionally, childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmissionoutof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. G
WARNING
If you attach heavyorlarge object sto the
SmartK ey,the SmartK eycould beuninten -
tionally turnedinthe ignition lock.This
could cause theengine tobe switched off.
There isarisk ofan accident.
Do not attach anyheavy orlarge object sto
the SmartK ey.Remove anybulky keyrings
before insertin gthe SmartK eyinto theigni-
tion lock.
! Keep
theSmartK eyaway fromstrongmag-
netic fields. Otherwise, theremote control
funct ioncould beaffected.
Str ong magnetic fieldscanoccur inthe
vicinity ofpowerful electrical installations.
Do not keep theSmartK ey:
R with electron icdevices, e.g.amobile phone
or another SmartKey
R with metallic objects,e.g. coins ormetal foil
R inside metallic objects,e.g. ametal case
This canaffect thefunct ionality ofthe
SmartK ey. Smar
tKeyfunctions 0043
0037 Locks thevehicle
0044 0054 Opens/c losesthetrunk lid
0087 0036 Unlock sthe vehicle
X To unlock centrally: pressthe0036 but-
ton.
If you donot open thevehicle withinapprox-
imately 40seconds ofunlocking:
R the vehicle islocked again.
R anti-t heftprotect ionisreactivated
X To lock centrally: pressthe0037 button.
The SmartK eycent rally locks/un locks:
R the doors
R the trunk lid
R the glove compartmen t
R the stowage compartmen tunder thearm-
rest
R the stowage compartmen tin the rear
R the fuel filler flap
The turn signals flashonce when unlocking
and three times whenlocking.
You canalso setanaudib lesignal toconfirm
that thevehicle hasbeen locked. Theaudib le
signal canbeactivated anddeactivated using
the on-board computer (Ypage 201).
When itis dark, thesurround lightingalso
comes onifit is activated inthe on-board
computer (Ypage 200). KEY
LESS-GO
General notes Bear
inmind thattheengine canbestarted by
any ofthe vehicle occupants ifthere isaKEY-
LES S-GO keyinthe vehicle (Ypage 128). 74
Smar
tKeyOpening andclosing

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low.
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 284).
or
X Jump-start thevehicle (Ypage 285).
or
X Consult aquali fiedspecialist workshop. The
engine cannot be
started usingKEYLE SS-
GO. TheSmartK eyisin
the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 77)and replace itifneces-
sary (Ypage 77).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataqual ified specialist work-
shop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. The
side windows can-
not beopened orclosed
using theconven ience
opening/c losingfea-
ture. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 77)and replace itifneces-
sary (Ypage 77). Doo
rs Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment Additionally,
childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isarisk ofan accident andinjury. Doo
rs
79Opening andclosing
Z

Opening
andclosing theside win-
dows
Opening andclosing theside windows
in the front The
switches forthe side windows arelocated
on the driver's door.There isalso aswitch for
the fron t-passenger sidewindow onthe fron t-
passenger door.
The switches onthe driver's doortakeprece-
dence. 0043
Left
0044 Right
X Turn theSmart Keytoposition 0047or0048 in
the ignition lock.
X To open manu ally:press andhold thecor-
respondin gswitch.
X To open fully: press theswitch beyond the
pressure pointandrelease it.
Autom aticoperation isstart ed.
X To close manually:pullthecorr espondin g
switch andhold it.
X To close fully:pulltheswitch beyond the
pressure pointandrelease it.
Autom aticoperation isstart ed.
X To interr uptautomat icopera tion:press
or pull thecorr espondin gswitch again.
You cancontinue tooperate theside windows
after youswitch offthe engine .This function is
available foruptofive minut esoruntil the
driver's orfron t-passenger doorisopened. Opening/closing
therear side win-
dows X
To open: openthefron tside window onthe
corr espondin gside (Ypage 88).
X Press thecorr espondin gswitch againand
release.
The correspondin grear side window opens
fully.
X To stop therear side windows: brieflypull
the corr espondin gswitch upand release.
X To close: closethefron tside window onthe
corr espondin gside (Ypage 88).
X Pull therespect iveswitch andhold it.
The correspondin grear side window will
con tinue toclose untilyourelease the
switch. Opening
andclosing allside win-
dows
Using theswitch onthe center con-
sole G
WARN
ING
While opening theside windows, bodyparts
in the closing areacould become trapped.
There isarisk ofinjur y.
Make surethatnobody parts areinclose
proximit yduring theclosing procedure. If
somebody becomestrapped,releasethe
switch orpress theswitch downtoopen the
side window again.
You canusetheswitch onthe cent ercon sole
to close allside windows simultaneously.
X Open thecover inthe lower centercon sole.
The switch forallside windows isunder the
cover . 88
Side
windowsOpening andclosi ng

Key
topositio n0092 inthe ignition lockor
remove theSmartKey.
Risk ofele ctric shock G
DA
NGER
MAGIC SKYCONTR OLopera tesusing high
voltage .If the trim behind theoverhea dcon-
trol panel isdama gedorremoved, electrical
components willbe exposed .If you touch
these components, youcould getanelectric
shock. Thereisarisk offatal injury.
R Never remove thetrim behind theover-
head control panel.
R Ifthe trim isdama ged,never touch the
electrical components behindit.
R Alway shave work onthe MAGIC SKY
CONTR OLcarried outataqua lified spe-
ciali stworkshop.
The electrical components ofMAGIC SKY
CONTR OLare protected byapanel ingbehi nd
the overhea dcontrol panel.
The MAGIC SKYCONTR OLcontrol unitis
marked withayel low warning stickerthat warns
youofhigh voltage .The electric cables
of the high-vol tagesection arecolor orange.
Operating MAGICSKYCONTROL X
Turn theSmartKey topositio n0047 or0048 in
the ignition lock.
MAGIC SKYCONTR OLswitches tothe sta-
tus itwas settobefore theengine was
switched off.
X To
change thedegree oftransparency:
press button 0043.
At temperature sbelo wfreezing, thechange is
slow erand uneven. Theentire process may
take some time. Proble
mswith theroof Proble
m Possi
blecauses /consequen cesand 0050 0050
Solutio ns The
roof willnot open or
close. The
trunk partition isnot closed.
X Clo sethe trunk partition (Ypage 92). The
netonthe trunk partition isnot attached.
X Attach thenet (Ypage 92). The
electrical plugconnector onthe trunk partition isdisconnected.
X Connect theelectrical plugconnector tothe trunk partition
(Y page 92). The
trunk isincorrectly loaded.
X Only loadthe trunk tobelo wthe trunk partition The
trunk lidisopen.
X Clo sethe trunk lid(Ypage 82). The
on-board voltageistoo low.
X Leave theengine running. Roof
95Openingand closi ng Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
roof hasbeen opened andclosed several timesinarow. The
roof drive hasswitched offautomatically.
You canopen andclose theroof again afterapproximately ten
minutes.
X Switch offthe ignition andturn itback on.
X Repeat theopening orclosing procedure. The
automatic roofsystem isfaulty.
X Visit aquali fiedspecialist workshop. 96
RoofOpening
andclosing