2019 MERCEDES-BENZ SL ROADSTER engine

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

HANDS
-FREEACCESS
Gene ralnote s With
KEYLESS-GO andHANDS-F REEACCESS,
you can open orclose thetrunk lidorstop the
proced urewitho utusi ng you rhands. Thisis
use fulifyou have yourhands full.To do this,
make akicking movement underthebump er
with yourfoot.
Observe thefollowi ngpoints:
R Ca rry you rKEYLESS-GO keyaboutyou rper-
son. TheSmartKey mustbeatthe rear of
the vehicl ein the detection rangeofKEY-
LESS-GO.
R When making thekicking movement, make
sure thatyouarestanding firmlyonthe
grou ndand that there issuffi cient clearance
to the rear ofthe vehicl e.You couldother-
wis elose yourbal ance, forexampl eon ice.
Important safetynotes G
WARNING
The vehicl eexhau stsystem canbecome
very hot.Ifyou useHANDS-F REEACCESS,
you couldburn yourself bytouching the
exhau stsystem. Thereisarisk ofinjury .
Alwa ysensure thatyoumake thekicking
movement onlywithi nthe detection rangeof
the sensors.
! If
the SmartKey iswithi nthe rear detection
range ofKEYLESS-GO, thefollowi ngsitua -
tions, forexampl e,coul dlea dto the unin-
tentional openingofthe trunk lid:
R when using anautomatic carwas h
R when using apow erwas her
Make surethattheSmartKey isat lea st
10 ft(3 m) awa yfrom thevehicl e. R
Alwa ysensure thatyoumake thekicking
movement onlywithi nthe detection range
of sensors 0043.
R Stand atlea st12 in(30 cm) awayfrom the
rear area whiledoing so.
R Do not come intocontact withthebump er
whi lemaking thekicking movement. Other-
wis e,the sensors maynotfunction cor-
rectly.
R HANDS-F REEACCESS doesnotfunction
duri ngengine start.
R Dirt caus edbyroad saltand snow build-u p
arou ndsensors 0043may restrict functional -
ity.
R Using theHANDS-F REEACCESS witha
prostheti cleg may restrict functional ity.
R IfaKEYLESS-GO keyisat the rear ofthe
vehicl ein the detection rangeofKEYLESS-
GO, HANDS-F REEACCESS couldbe trig-
gered .The trunk lidcoul dthus beopened or
closed unintentiona lly,for exampl e,ifyou :
- sit on the edge ofthe trunk.
- set somethi ngdow nor lift somethi ngup
behi ndthe vehicl e.
- poli shthe rear ofthe vehicl e.
Do not carry theKEYLESS-GO keyabout
you rperso nin these situations orinsitua -
tions similartothese. Thiswillprevent the
unintentiona lopeni ng/closing ofthe trunk
lid . 84
TrunkOpen
ingand closi ng

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

The
seats canstillbeadjusted whenthereis
no Smart Keyinthe ignition lock. G
WARNIN
G
When youadjust aseat, youorother vehicle
occupant scould become trapped, e.g.on
the seat guide rail.There isarisk ofinjury.
When adjusting aseat, make surethatno
one hasany body parts inthe sweep ofthe
seat. G
WARNIN
G
If the driver's seatisnot engaged, itcould
move forwards asfar asthe next catchdur-
ing movemen tsuch asbraking orabrupt
changes ofdirection .As aresult, youwould
be pushed againstyourseatbeltbythe
unsecured driver'sseat.
This could cause youtolose controlofthe
vehicle. Theseat beltcann otprotec tas
inten dedandcould result inadditional
injury.
There isarisk ofan accident andinjury.
Before everyjourney, makesurethatthe
driver's seatisfully engaged.
Observe thesafety noteson "Air bags"
(Y page 45)and "Children inthe vehicle"
(Y page 57). G
WARNIN
G
If you adjust theseat height carelessly, you
or other vehicle occupant scould betrapped
and thereby injured.Children inparticular
could accident allypress theelectric alseat
adjustmen tbutton sand become trapped.
There isarisk ofinjury.
While moving theseats, makesurethatyour
hands orother bodyparts donot getunder
the lever assembly ofthe seat adjustmen t
system. G
WARNIN
G
If the head restraints arenot installed ornot
adjusted correctly,they cannotprovide pro-
tect ionasinten ded.There isan increased
risk ofinjury inthe head andneck area, e.g.
in the event ofan accident orwhen braking. Always
drivewiththehead restraints instal-
led. Before driving off,make sureforevery
vehicle occupant thatthecent erofthe head
restr aintsupports theback ofthe head at
about eyelevel. G
WARNIN
G
You could losecontrolofyour vehicle ifyou
do the following whiledriving:
R adjust thedriver's seat,head restraint,
steerin gwheel ormirrors
R fasten theseat belt
There isarisk ofan accident .
Adjust thedriver's seat,head restraint,
steerin gwheel andmirror andfasten your
seat beltbefore startingthe engine.
! To
prevent damage tothe seats andthe
seat heating, observethefollowing notes:
R Do not spill liquids ontothe seats. Drythe
seats assoon aspossible ifliquid does
get spilled onthe seats.
R Ifthe seat covers aredamp orwet, donot
switch onthe seat heating. Also,donot
use theseat heating todry the seats.
R Clean theseat covers asrecomm ended;
see the"Inter iorcare" section .
R Do not trans portheavy loadsonthe
seats. Donot place pointed objectson
the seat cushions suchaskniv es,nails or
tools. Where possible, usetheseats only
for carrying passengers.
R When operating theseat heating, donot
cover theseats withinsulating materials,
e.g. blankets ,coats, bags,protec tivecov-
ers, child seats orbooster seats.
R When theseat heating isswitched on,the
seat surface canbedamaged asaresult
of object sbeing placed onthe seats, for
example, seatcushions, childseats and
protec tivecovers notapproved by
Mercedes- Benz.
! Make
surethatthere arenoobject sin the
footwell underorbehind theseats when
moving theseats back. There isarisk that
the seats and/or theobject scould bedam-
aged.
i The
head restraints cannotbe removed. 98
SeatsSeats,
steering wheelandmirrors

seat
beltguide .This makes iteasier tomove
the seats forward.
Before youdrive off,theseat beltmust be
inserted intotheseat beltguide .
Observe thesafety guidelinesforseat belts
(Y page 42).
X To remove: openupmagnetic head0044and
fold thetabupinthe direction ofthe arrow.
X Take theseat beltoutofseat beltguide 0043.
X To insert: foldthetabupinthe direction of
the arrow.
X Insert theseat beltback intotheseat belt
guide andfold thetabback down. Adjusting
thehead restra ints G
WARNING
You could losecontrolofyour vehicle ifyou
do the followi ngwhile driving:
R adjust thedriver's seat,head restraint,
steering wheelormirrors
R fasten theseat belt
There isarisk ofan accident.
Adjust thedriver's seat,head restraint,
steering wheelandmirror andfasten your
seat beltbefore starting theengine.
X To adju stthe head restra intheight: slide
the switch forthe head restraint adjust-
ment 0043upordown inthe direction ofthe
arrow. Moving
theseats forward/back G
WARNING
When youadjust aseat, youorother vehicle
occupants couldbecome trapped, e.g.on
the seat guide rail.There isarisk ofinjury.
When adjusting aseat, make surethatno
one hasany body parts inthe sweep ofthe
seat.
! Make
surethatthere arenocont ainers in
the cup holder andnoobjects inthe foot-
well orbehind theseats when adjusting the
seats. Otherwise, youcould damage the
seats andtheobjects. You
canmove theseat forwards inorder to
gain better access tothe rear compartment ,
e.g. toreach thestowage compartment inthe
rear passenger compartment .
X Remove theseat beltfrom theseat belt
guide (Ypage 99).
X To move theseat forwards: press0064on
switch 0043.
The seat moves automaticall yto the fore-
most position.
X To move theseat backwards: press0063
on switch 0043.
The seat moves backtothe previous posi-
tion.
X To stop seatmovement: press0064or
0063 inthe opposite direction. Adjusting
themulticontour seat
You canadjust themulticontour seatusing
COMAND (seeDigital Operator's Manual). Adjusting
theactive multicontour
seat
The active multicontour seatcanbeadjusted
using COMAND (seetheDigital Operator's
Manual ). Adjusting
the4-way lumbar support
You canadjust the4-way lumbarsupport
using COMAND (seetheDigital Operator's
Manual ). 100
SeatsSeats,
steering wheeland mirrors