2020 MERCEDES-BENZ SLC ROADSTER tow

Aut
oma ticl ocki ngfea ture X
To dea ctivate: pressand hold button0043 for
about fives econ ds unt ilat ones oun ds.
X To act ivate: pressand hold button0044 for
about fives econ ds unt ilat ones oun ds.
If you pressoneo fthe two buttons and donot
hear atone,ther elevan tsetting has already
been selected.
The vehiclei sloc keda uto mat icallywhen the
ign ition isswit ched on and thew hee lsare
tur nin g.
You could there foreloc ky ours elfout if:
R thev ehiclei sb ein gp ush ed.
R thev ehiclei sb ein gtow ed.
R thev ehiclei so nar oller dyn amom eter.
You canalso switchthea uto mat icloc king
fun ction onand offusin gthe on-board com-
put er(Y page 179). Unlock
ing/lockingthe driver 'sdoor
usi ng them echa nica lkey
i If
you want tocentrally lockthe veh icle
usin gthe mec hanical key,begi nbypressi ng
th el oc king but tonf or thei nteri or loc king
mec hanism while thed river 'sdoor isopen .
The nlockt he driver 'sdoor usingthe
mec hanical key. X
To unl ock: turnthe mec hanical keyc oun-
te r-clo ckwise asfar asitwill gotopos ition
0047.
X To lock: turnthe mec hanical keyc lock wise
as far asitwill gotopos ition 0047.
If you usethem echan ical keyt ou nloc ka nd
open thed river 'sdoor ,the ant i-thef talarm
syst emwill betrigge red.Switcho ffthea larm
(Y page 64). Tr
unk Imp
ortant safety notes G
WAR
NING
If obj ects,luggag eorloads arenotsecured
or notsecured sufficien tly, they could slip,
ti po vero rb eflun garou ndand there byhit
veh icleo ccup ant s.The reisar isko finjury,
part icularly inthee vent ofsudd enbrak ing
or as udd enchang eind irec tion .
Alw ays store objects so that they can notb e
flun garou nd.S ecureo bjec ts,luggag eor
loads againstslip pingo rtippin gb efore the
jo urn ey.
! The
trunk lidswin gsupwar dswhen
open ed.Therefore ,makes uret hatthe re is
suf ficien tclearan ceabov ethe trunk lid.
! On
lyclo sethet runk once ther oofisl ow-
ere dcom pletely. Other wise ,you could dam-
age ther oof.
If you closethet runk lidbef ore ther oofis
lower edcomple tely, thel oadi ngaid swit ch
ligh tsup and awarning tone soun ds. Tr
unk
73Opening andclosing Z

Only
have thesoft topclosed manuall yata
qual ified speciali stworkshop.
! Never
siton the rear shelf orstore heavy
objects there.Youwillotherwise damage
the roof andtherear shelf ofyour vehicle.
! Do
not forget thattheweather canchange
abruptly .Make certain thattheroof is
closed whenyouleave thevehicle. Thevehi-
cle electronics canbedamaged ifwater
enters thevehicle interior.
! When
opening andclosing theroof, make
sure that:
R there issufficient clearance, asthe roof
swings upwards.
R there issufficient clearance behindthe
vehicle, asthe trunk lidswings backwards
beyond thebumper.
R the trunk isonly loade dtob elow the
trunk partition.
R the trunk partition isnot pushed upbythe
load.
R the trunk partition isclosed.
R the trunk lidisclosed.
R the outside temperature isabove 5‡
( 00F8 15 †).
You could otherwise damagetheroof, trunk
and other partsofthe vehicle.
The vehicle dimensions foropening/closing
the roof canbefound inthe "Vehicle data"
section (Ypage 305).
Make surethattheroof andrear window are
clean anddrybefore opening theroof. Other-
wise, water ordirt could enterthevehicle inte-
rior ortrunk. Opening
andclosing using theroof
switch
Importa ntsafety notes G
WARNING
When opening orclosing theroof, body
parts could betrapped by,forexample, the
roof mechanism, trunklidorside windows.
There isar isk ofinjury.
When raising orlowering theroof, make
sure thatnobody parts areinthe vicinity of moving
component s.Ifsomeone becomes
trapped, releasethebutton.
For safety reasons, youcan only open orclose
the roof when thevehicle isstationary.
! Operating
theroof while pulling awa y:
R Observe thefollowi ngtraffic carefully .
R Do not drive faster than25mph
(40 km/h).
R Avoid abrupt braking andswerving
maneuvers.
Do not operate theroof when cornering,
driving onuneven surfaces orduring strong
winds. Thevehicle mayotherwise bedam-
aged.
i If
the traffic conditions meanthatyouhave
to drive offwhile opening/closing theroof,
the procedure whichwasstarted whilesta-
tionary canbecont inued atspeeds ofup to
approximately 25mph (40km/h).
Opening andclosing X
Vehicles
withoutsemi-automa tictrunk
part ition: closethetrunk partition
(Y page 80).
X Close thetrunk lid(Ypage 73).
X Turn theSmartKey toposition 0048inthe igni-
tion lock.
X Open thecover inthe lower center console.
Roof switch 0043islocated underthecover.
X To open:p ullroof switch 0043until theentire
roof isstowed awayint he trunk.
The Vario-Roof inOperation Vario-Roof
inOperation message
appea rsinthe multifunction display.Once
the opening procedure iscomplete, the
message disappearsandatone sounds.
All ofthe side windows open. Roof
79Opening andclosing Z

Opera
tingAIRGUIDE X
To fold outAIRGUIDE: turndisc0043inthe
direct ionofthe arrow towards themiddle of
the vehicle tothe stop.
X Repeat withdisc0044.
X To fold inAIRGUIDE: turndiscs 0043and 0044
back behind therollbar tothe stop.
Disc s0043 and 0044can also beused independ-
ent lyof each other,e.g. when youaredriving
without apassenger. MAGIC
SKYCONTR OL
General notes MAGIC
SKYCONTROL isap anorama roof,the
tran sparenc yofw hich canbechanged by
applying electricalvoltage.
MAGIC SKYCONTROL canbeswitched
between darkenedand transparent states.
MAGIC SKYCONTROL darkensautomatic ally
after ashort period whenyouturn theSmart -
Key toposition 0092inthe ignition lockor
remove theSmart Key.
Risk ofelectric shock G
DANGER
MAGIC SKYCONTROL operatesusinghigh
voltage. Ifthe trim behind theoverhead con-
trol panel isdamaged orremoved, electrical compon
entsw illbe exposed. Ifyou touch
these compon ents,you could getanelectr ic
shock .There isar isk offatal injury.
R Never remove thetrim behind theover-
head control panel.
R Ifthe trim isdamaged, nevertouch the
electr icalcompon entsbehind it.
R Always havework onthe MAGIC SKY
CONTROL carriedoutataq ualified spe-
cialist worksho p.
The electr icalcompon entsofM AGIC SKY
CONTROL areprotec tedbyap aneling behind
the overhead control panel.
The MAGIC SKYCONTROL control unit is
marked withayellow warning sticker that
warns youofhigh voltage. Theelectr iccables
of the high-vo ltagesectionare color orange.
Opera tingMAGIC SKYCONTR OL X
Turn theSmart Keytoposition 0047or0048 in
the ignition lock.
MAGIC SKYCONTROL switchestothe sta-
tus itwas settobefore theengin ewas
switched off.
X To
change thedegree oftranspa rency:
press button 0043.
At temper aturesbelowfreezing,thechange is
slower anduneven .The ent ireprocess may
take some time. Roof
83Opening andclosi ng Z

Note
sonb reaki ng-in anew vehic le Impo
rtant safety notes
Th es ensors ystemo fsom edrivi ng and driving
sa fety syste ms adjus tsautoma ticallyw hile a
cer taind ista nce isbe ing driven after the vehi-
cle hasb eend elive redo rafter rep airs. Full
sy ste me ffecti vene ssisnot reache duntilthe
end ofthisteach-i nproced ure.
New andreplaced brakepads and discs only
rea chthe irop tim um braking effect after sev-
era lhun dred kilome ters ofdri ving. Compe n-
sa te for thisb yapplyin gg reate rforce tothe
bra kepedal. The
first 1000 miles(150 0k m)
Th em orey ou look after the enginewhen itis
new ,the mor esatisfied youw illb ew ithi ts
pe rfo rma nce inthe futur e.
R Yo us houldt heref ore drive atvarying vehicle
and enginespee ds for the first 1,000 miles
(1, 500 km).
R Avoi dheavy load s,e.g .drivi ng atfullthro t-
tle ,duringt hisp eriod.
R Ch ang egearing oodt ime,be for ethe tac h-
ome ternee dlei s00C3of thewaytot he red
ar ea ofthe tachomete r.
R Do not manua llys hift to alow ergear to
bra kethe vehicle.
R Try toavoidd epressi ng the accelera tor
pe dalbeyond thepoint ofres istanc e(kick-
do wn) .
After 1000 miles( 15 00 km) ,you can increase
the enginespee dg radu ally and accelera tethe
veh iclet ofulls pe ed.
Yo us houlda lsoo bserve the senote sonb reak-
ing inifthe engineorparts ofthe drive train
on your veh icleh aveb eenr eplaced .
Alw ayso bserve the maxim um permi ssible
sp ee d. Dri
ving Impo
rtant safety notes G
WA
RNI NG
Ob jects inthe driver 'sfoo twe llma yrestrict
the clearanc earound thepedalsor block a de
pre sse dpedal. Thisjeo pardi zes theoper-
ati ng and roadsafety ofthe vehicle. There is
ar isko fana ccident.
Stow allo bjects secu rel yint he veh icles o
tha tthe yd on otgetinto thedriver 'sfoo t-
we ll.W henu sing floo rma tsor car pets, ma ke
su re tha tthe ya repro perlys ecured sotha t
the ydon otslip or obstru ctthe pedals.D o
not place sever alfloo rma tsor car pets on
top ofone another. G
WA
RNI NG
Unsu itablef ootwe arcan hinde rcorrec t
us ag eo fthe pedals,e .g.:
R sho eswith thick soles
R sho eswith high heels
R slip pe rs
Th ere isar isko fana ccident.
We arsuita blef ootwe arto ens urec orrec t
us ag eo fthe pedals. G
WA
RNI NG
If yo us witch offthe igniti onwhiled rivi ng,
sa fety -releva ntfunctio nsareo nlya vailab le
wi th limi tati ons ,orn otatall. Th iscou ld
af fec t,for exa mpl e,the powe rsteeri ng and
the brakeboost ing effect. Youw illr eq uire
cons idera blym oree ffort toste erand brake.
Th ere isar isko fana ccident.
Do not switch offthe igniti onwhiled rivi ng. G
WA
RNI NG
If the parki ng bra kehasn otbeen fully
rel easedw hend rivi ng, the parki ng bra ke
can :
R ove rheatand causeafire
R lose its holdfunctio n.
Th ere isar isko ffirea nd anacc ident.
Re leas et he parki ng bra kefullyb efor ed riv-
ing off.
! Do
not warm upthe enginewhiles tatio n-
ar y. Pu llaw ay immed iatel y.Avoi dhigh
eng inespee ds and fullthro ttleuntilthe
eng inehasr eache dits op era ting temp era-
tur e. Dr
ivi ng
117Drivi ng andp arki ng Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
coolant tempera-
ture display showsa
value above 248‡
(120 †).The coolant
warning lampmayalso
be on and awarning
tone maysound. The
coolant levelistoo low. Thecoolant istoo hotand theengine is
no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 243). Observe thewarning notes
as you dosoand add coolant ifnecessary. If
the coolant leveliscorrect ,the engine radiator fanmay befaulty.
The coolant istoo hotand theengine isno longer beingcooled suf-
ficiently.
X At coolant temperatures below248‡(120 †),drive tothe near-
est quali fiedspecialist workshop.
X Avoid heavy loadsonthe engine asyou doso, e.g. driving in
mountainous terrainandstop-and- gotraffic. Notes
ontowing vehicles
The vehicle isnot suitable forattaching tow
bar systems, suchasthose usedforflat tow-
ing ordinghy towing.
Att aching orusing towbarsystems mayresult
in damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehi-
cle.
The vehicle/vehicle combinationmayswerve.
Observe thepermissible towingmethods
(Y page 265)andthenotes ontowing with
both axles onthe ground (Ypage 265). DYNAMIC
SELECTbutton
Use theDYNAMIC SELECTbutton tochange
the drive program. Depending onthe drive pro-
gram selected thefollowing vehiclecharacter-
istics willchange:
R the drive (engine andtransmission manage-
ment)
R the suspension orthe adaptive adjustable
damping onlyonvehicles withAMG RIDE
CONTROL sportssuspension
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunc-
tion Each
timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram C
is activated. Forfurther information about
startin gthe engine, see(Ypage 119). X
Press DYNAMIC SELECTbutton 0043asmany
times asnecessary untilthedesired drive
program isselected.
The selected driveprogram appearsinthe
multifunct iondisplay .After as hort period of
time, thedisplay goesoutand thesymbol
for the selected driveprogram appears.
In addition, thecurrent driveprogram set-
tings aredisplay edbriefly inthe multimedia
system display.
i In
af ew countr ies,theECO start/ stop
funct ionisdeactivated atthe factory dueto
the availa blefuel grade. Inthis case, the
ECO start/ stopfunct ionisnot availa blein
any drive program, regardless ofthe display
in the multimedia systemdisplay.
In city traffic andstop-st arttraffic, drivepro-
gram Cis recommen ded. 124
DY
NAMIC SELECTbutt onDriving andparking

0044 Neut
ral
Do not shiftthe transmi ssion to
0044 whiled riving .The automa tic
tra nsmi ssion cou ldothe rwiseb e
da ma ged.
No powe rist ransmi ttedfromt he
eng inetothe drive wheels.
Re leas ing the brakepedalw illa llow
yo ut om ovet he veh iclef reely, e.g .
to push itor tow it.
If ESP ®
is de acti vated orfaulty: shift
the transmi ssion topositio n0044 if
the vehiclei sind angero fskidd ing ,
e.g .onicy roa ds.
! Co
asting inneu tral005C may
cau sedama getothe drive train. 003A Dri
ve
The automa tictransmi ssion
cha nge sgeara utoma tically. All
for wa rdgearsa reavailabl e. Dri
ving tips
Ch ang ingg ear The
automa tictransmi ssion shifts thro ught he
ind ividu alge arsa utoma ticallyw henitisi n
tra nsmi ssion positio n005B.T hisa utoma ticgear
shi fting behavio risd eterm inedb y:
R the selecte ddrive pro gram
R the positio no fthe acce lera tor pedal
R the roadspeed
Ac celerator pedalposition Yo
ur sty leof dri ving influences howtheauto-
ma tic transmi ssion shifts gear:
R little thro ttle:early up shi fts
R mor ethro ttle :lat eu pshifts Ki
ck dow n Use
kickd ownfor ma xim um accelera tion.
X Dep ressthe acc elera tor pedalbeyond the
pre ssu repoint.
The automa tictransmi ssion shifts toalow er
ge ar dependi ng on the enginespeed.
X Eas eoffthe accelera tor pedalonce the
de sired speedisrea che d.
The automa tictransmi ssion shifts back up. Dri
veprog rams
Dri veprog ramC(Comfo rt) In
city traffica nd stop -starttra ffic, dri ve pro -
gra mCis reco mme nded.
Driv eprogra mCis cha racteri zedbythe follow-
ing :
R the vehicled elive rscomf ortable, eco nomi cal
ha ndl ing characteri stics.
R the vehiclep ulls aw ay mor egently in
for wa rdand revers egears,u nless theaccel-
era tor pedalisd epresse dfully.
R the vehicleh asimp roveddriving stability,
for exa mpl eonslipper yroads urfaces .
R op tima lfue lcons umption resulting fromt he
au toma tictransmi ssion shifting upsoo ner.
The vehiclei sd riven inthe lowe ngine spee d
ra nge and thewheelsarel esslikel yt os pin.
R thes uspe nsi on exh ibits comf ortabled amp-
ing setti ngs(ada pti ve dampi ngsystem only
in veh icles with AMG RIDE CONTR OLsports
su spe nsion) .
R the stee ring exhibits comf ortables tee ring
cha racteri stics.
Dri veprog ramS(Sport) Driv
eprogra mSis cha racteri zedbythe follow-
ing :
R the vehiclee xhibits spo rtydriving character-
is tics .
R the vehiclep ulls aw ay infirst gear.
R the automa tictransmi ssion shifts uplater.
The fuel cons umption possi blyb eing highe r
as aresulto fthe later automa tictransmi s-
si on shiftpo ints . 12
8 Au
tomati ctrans missionDr ivi ng andp arki ng

To
ensure thatthevehicle issecured against
rolling awayunintention ally:
R the electric parking brakemustbeapplied.
R the trans mission mustbeinposition 005D.
R the Smart Keymust beremoved fromthe
ignition lock.
R the front wheels mustbeturned towards the
curb onsteep uphillordownhill gradients. Switching
offthe engine G
WARNIN
G
The automatic transmission switches toneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollaway .There isa
risk ofan accident .
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked
vehicle fromrolling awaybyapplyi ngthe
parking brake.
X Apply theelectric parking brake.
X Shift thetrans mission toposition 005D
(Y page 126).
X With theSmar tKey:turn theSmart Keyto
position 0092inthe ignition lockandremove
it.
The immobilizer isactivated.
X With KEYLESS-GO: presstheKEYLE SS-GO
Start /Stopbutton (Ypage 118).
The engine stopsandallthe indicator lamps
in the instr ument cluster goout.
If the driver's doorisclosed, thisisthe
same asSmart Keyposition 0047.Ifthe driv-
er's door isopen, thisisthe same asSmart -
Key position 0092(Ypage 118).
The engine canbeswitched offwhile thevehi-
cle isin motion bypressing andholding the
Start /Stopbutton forabout threeseconds.
This funct ionoperates independent lyof the
ECO start/stopautomatic engineswitch-off
funct ion. Elec
tric par king brake
General notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R open doors, thereby endangerin gother
persons orroad users
R get out and bestruck byoncom ingtraff ic
R operate thevehicle's equipment
Addition ally,children couldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005Dorshift themanual
trans mission toneutral
R start theengine
There isar isk ofan accident andinjury.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe digital vehicle keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
Always keeptheSmart Keyoutofreach of
children. Thisalso applies forthe Digital
Vehicle Keyifthe "Digital Vehicle Key"func-
tion isactivated viaMercedes meconn ect.
The funct ionofthe electric parking brakeis
dependent onthe on-board voltage.Ifthe on-
board voltage islow orthere isam alfunct ion
in the system, itmay notbepossible toapply
the released parkingbrake.
X Ifthis isthe case, onlypark thevehicle on
level ground andsecure itto prevent itroll-
ing away .
X Shift theautomatic transmission toposition
005D.
It may notbepossible torelease anapplied
parking brakeifthe on-board voltageislow or
there isam alfunct ioninthe system. Contact a
qualified specialist workshop.
The electric parking brakeperforms afunct ion
test atregular intervalswhile theengine is
switched off.The sounds thatcanbeheard
while thisisoccurrin garenormal. Par
king
135Driving andparking Z

When
youactivat ecruise control,the stored
speed isshown inthe multifunc tiondisplay for
five secon ds.The speed isthen permanen tly
displayed inthe status indicator togetherwith
the 00B2 symbol.
In vehicles withasegment circleinthe speed-
ometer ,the segment sbetween thecurren tly
stored speedandtheend ofthe segment cir-
cle light up.
Storing, maintaining andcalling upa
speed Storing
andmaint aining aspeed
X Acc elerate thevehicle tothe desired speed.
X Briefly pressthecruise controllever up0043
or down 0085.
X Remove yourfootfrom theaccelerat or
pedal.
Cruise controlisactivat ed.The vehicle auto-
matically maintainsthe stored speed.
You canstore thecurren tspeed ifyou are
driving fasterthan20mph (30km/ h).
i Cruise
controlmay beunable tomaintain
the stored speedonuphill gradients .The
stored speedisresumed whenthegradient
evens out.Cruise controlmaintain sthe
stored speedondownhill gradients byauto-
matically applyingthebrakes.
Storing orcalling upaspeed G
WARNIN
G
If you callupthe stored speedanditdiffers
from thecurren tspeed, thevehicle acceler-
ates ordecelerates. Ifyou donot know the
stored speed, thevehicle couldaccelerat e
or brake unexpec tedly.There isar isk ofan
accident .
Pay atten tiontothe road andtrafficcondi-
tions before callingupthe stored speed. If
you donot know the stored speed, storethe
desired speedagain.
X Briefly pullthecruise controllever towards
you 0087.
X Remove yourfootfrom theaccelerat or
pedal.
The first time cruise controlisactivat ed,it
stores thecurren tspeed orregulates the speed
ofthe vehicle tothe previously stored
speed.
Setting aspeed G
WARNIN
G
Keep inmind thatitmay take abrief
momen tuntil the vehicle hasmade thenec-
essary adjustmen ts.
Inc rease ordecrease thesetvehicle speed
to av alue thattheprevailing roadcondit ions
and legal speed limitspermit. Otherwise,
sudden andunexpec tedaccelerat ionor
deceleration ofthe vehicle couldcause an
accident and/orserious injurytoyou and
others .
X To
adj ust the setspeed in1m phincre-
ments (1km/h increments): brieflypress
the cruise controllever up0043 tothe pres-
sure point forahigher speed, ordown 0085
for alower speed.
Ever ytime thecruise controllever is
pressed upordown, thelast speed stored is
incr eased orreduced.
X To
adj ust the setspeed in5m phincre-
ments (10km/h increments): briefly
press thecruise controllever up0043 past the
pressure pointforahigher speed, or
down 0085for alower speed.
Ever ytime thecruise controllever is
pressed upordown, thelast speed stored is
incr eased orreduced.
i The
speed indicated inthe speedometer
may differ slightly fromthespeed stored.
i Cruise
controlisnot deactivat edifyou
depress theaccelerat orpedal. Forexample,
if you accelerat ebriefly toovert ake,cruise
cont roladjusts thevehicle's speedtothe
last speed stored afteryouhave finished
overt aking. Driving
systems
143Driving andparking Z