MERCEDES-BENZ SL ROADSTER 2020 Owner's Manual

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Act
ive Steering Act
ive Steering
Ass ist Currently Ass
ist Currently
Una vailableSee Una
vailableSee
Ope rator'sMan ual Ope
rator'sMan ual Ac
tive Steer ing Assis tis tempo rarily ino per ative.
Pos siblecaus esare:
R thewin dsh ield inthecam era'sfie ldof vis ion isdir ty
R vis ibilit yis imp aire ddue toheav yrain ,sn ow orfog
R there havebeen nolanemar king sfor anextend ed per iod
R thelan emar king sare wornaway, darkorcover edup, e.g. by dirt
or snow
Whe nth ecaus esstate dabov eno longer apply, thedisp laymes sage
disap pears.
Ac tive Steer ing Assis tis oper ationalagain .
If th edisp laymes sage does notdisap pear:
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 147).
X Clean thewin dsh ield. Act
ive Steering Act
ive Steering
Ass ist Inoperati ve Ass
ist Inoperati ve Ac
tive Steer ing Assis tis fault y.
Ho weve r,theAc tive Distanc eAs sis tDI ST RONI Cfun ction sare still
avail able.
A warn ingtone also soun ds.
X Vis itaqualif iedspecialistwor kshop . Cru
ise ControlOff Cru
ise ControlOff Cruis
eco ntrol has been deactivat ed.
If awarn ingtone also soun ds,cruise control has deac tivat ed auto -
mat ically(Y page 155). Cru
ise Control-- Cru
ise Control--
- mph -
mph Cruis
eco ntrol can notbe act ivat ed, since notall oftheact ivat ion
co nd ition shav ebeen met.
X Chec kth eact ivat ion cond ition sfor cruise control (Ypage 155). Cru
ise Control Cru
ise Control
Ino perative Ino
perative Cruis
eco ntrol ismalf unction ing .
A warn ingtone also soun ds.
X Vis itaqualif iedspecialistwor kshop . Disp
laymes sage s
229On -boar dcomp uter anddi sp lay s Z

Tire
s Di
spl aymes sages Po
ssible cause s/consequ encesand 0050 0050
So luti ons Ple
ase Correct Ple
ase Correct
Tir ePre ssure Tir
ePre ssure The
tirepressu reistoo low in at leas tone ofthe tires,or the tire
pre ssu rediffe renc ebe twe enthe wheelsistoo great.
X Ch eck thetire pressu res atthe next opportu nity (Ypage 302 ).
X Ifnece ssary,corr ectthe tire pressu re.
X Re sta rtthe tire pressu remoni tor(Ypage 304 ). Tir
ePre ssure Soon Tir
ePre ssure Soon The
tirepressu reinone ormor etire sha sdro pped signi ficantl y.The
wh eelpo sitio nis sho wninthe multifu nctio ndisp lay.
A wa rning tone also sou nds .
G WA
RNING
Ti re pre ssu res thatar etoo low po se the followi ng hazar ds:
R the yma ybu rst, especially as the load and vehiclesp ee dincr ease
R the yma ywe arexce ssivel yand /or unevenl y,wh ich maygre atly
imp airtire tractio n.
R the drivin gcha racteri stics, aswellas stee ringand braking ,ma y
be gre atlyimp aired
The reisaris kof an acc ident.
X Stop thevehiclewi thou tma king anysudd en stee ringor bra king
ma neu vers.Pa yatte ntionto the trafficcond itions asyoudo so.
X Secu rethe vehicleag ainst rolling away (Y page 147 ).
X Ch eck thetiresand ,if nece ssary,fol low the instructio nsfor afla t
tire (Ypage 281 ).
X Ch eck thetire pressu re(Y page 302 ).
X Ifnece ssary,corr ectthe tire pressu re. War
ningTir eMal ‐ War
ningTir eMal ‐
fun ction fun
ction The
tirepressu reinone ormor etire sha sdro pped sudd enl y.The
wh eelpo sitio nis sho wninthe multifu nctio ndisp lay.
G WA
RNING
Driv ingwith afla ttire poses aris kof the followi ng hazar ds:
R afla ttire affects theability tostee ror bra kethe vehicle
R youcou ldlose contro lof the vehicle.
R conti nueddri vin gwi th afla ttire willcau seexce ssive heat build-
up and possi blya fir e
The reisaris kof an acc ident.
X Stop thevehiclewi thou tma king anysudd en stee ringor bra king
ma neu vers.Pa yatte ntionto the trafficcond itions asyoudo so.
X Secu rethe vehicleag ainst rolling away (Y page 147 ).
X Ch eck thetiresand ,if nece ssary,fol low the instructio nsfor afla t
tire (Ypage 281 ). 23
0 Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Tir
ePre ss. Moni‐ Tir
ePre ss. Moni‐
tor Currently tor
Currently
Una vailable Una
vailable Be
caus eth ere isint erf ere ncefrom ast ron gsour ceofradi owave s,
no sign alsfrom thetire pre ssur esen sorsare detected. The tire
pre ssur emon itor istempo rarily malf unction ing .
X Dr ive on.
The tire pre ssur emon itor res tartsauto maticallyas soo nas the
pro blem hasbeen resolved. Tir
ePress.Sen ‐ Tir
ePress.Sen ‐
sor (s) Missing sor
(s) Missing The
reisno sign alfrom thetire pre ssur esen sor ofoneor sev eral
whee ls.The pressur eof theaff ectedtire does notappear inthe
mult ifunction disp lay.
X Hav eth efault ytire pre ssur esen sor replace dat aqualif iedspe-
cial istwor kshop . Tir
ePre ssure Moni‐ Tir
ePre ssure Moni‐
tor Inoperative No tor
Inoperative No
Whe elSensors Whe
elSensors The
whee lsmoun teddo nothav easuit able tire pre ssur esen sor.
The tire pre ssur emon itor isdeac tivat ed.
X Moun twhee lswit hsuit able tire pre ssur esen sors.
The tire pre ssur emon itor isact ivat edauto maticallyaft erdrivin g
for afew minutes. Tir
ePre ss. Moni‐ Tir
ePre ss. Moni‐
tor Inoperative tor
Inoperative The
tire pre ssur emon itor isfault y.
X Vis itaqualif iedspecialistwor kshop . Veh
icle Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Shi
ftto'P' or Shi
ftto'P' or
'N' toStartEng ine 'N'
toStartEng ine You
haveatt emp tedto start theen gin ewit hth etrans mis sion in
pos ition 005Eor005B.
X Sh ift thetrans mis sion topos ition 005Dor005C. App
lyBraketo App
lyBraketo
Shi ftfrom'P' Shi
ftfrom'P' You
haveatt emp tedto shi ftthetrans mis sion topos ition 005B, 005Eor
005C without depressing thebrak epedal .
X De pre ssthebrak epedal . To
Shiftout ofP To
Shiftout ofP
or N,Depress or
N,Depress
Bra keand Switch Bra
keand Switch
on Engine on
Engine You
haveatt emp tedto shi ftthetrans mis sion outofpos ition 005Dor
005C intoano ther trans mis sion position withth een gin eswit ched off.
X De pre ssthebrak epedal .
X Start theen gin e. Dri
ver'sDoorOpe n Dri
ver'sDoorOpe n
& Tra nsmission Not &
Tra nsmission Not
in PRis kof Veh i‐ in
PRis kof Veh i‐
cle RollingAwa y cle
RollingAwa y The
driver 'sdoor isno tfull yclo sed and thetrans mis sion isin pos i-
ti on 005E, 005Cor005B.
A warn ingtone also soun ds.
G WAR
NING
The vehiclemay rollaway.
The reisaris kof an acc iden t.
X Whe npark ingtheveh icle, shi ftthetrans mis sion topos ition 005D. Disp
laymes sage s
231On -boar dcomp uter anddi sp lay s Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Onl
ySel ect Park Onl
ySel ect Park
(P) WhenVeh icle (P)
WhenVeh icle
is Stationary is
Stationary The
vehicleis mov ing.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Sh ift thetrans mis sion topos ition 005D. App
lyBraketo App
lyBraketo
Sel ect R Sel
ect R You
haveatt emp tedto shi ftfrom position 005Btopos ition 005E.
X De pre ssthebrak epedal .
X Sh ift thetrans mis sion topos ition 005E. Ser
viceReq uired Ser
viceReq uired
Do Not ShiftGears Do
Not ShiftGears
Vis itDealer Vis
itDealer You
cannotch ang eth etrans mis sion position due toamalf unction .
A warn ingtone also soun ds.
If trans mis sion position 005Bissele cted:
X Dr ive toaqualif iedspecialistwor kshop without shifting thetrans -
mis sion from position 005B.
If pos ition 005E, 005Cor005D issele cted:
X Not ifyaqualif iedspecialistwor kshop orbre akd own service. Rev
ersing NotPos‐ Rev
ersing NotPos‐
sib leService sib
leService
Req uired Req
uired You
cannolonger shiftto trans mis sion position 005Edue toamal-
fun ction .
Tran smission pos ition s005D, 005Cor005B continu eto be avail able.
A warn ingtone also soun ds.
X Vis itaqualif iedspecialistwor kshop . Tra
nsmission Mal‐ Tra
nsmission Mal‐
fun ctionStop fun
ctionStop A
malf unction has occur red inthemec hanical trans mis sion compo -
ne nts.
A warn ingtone also soun ds.The trans mis sion shifts auto matically
to pos ition 005C.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Sh ift thetrans mis sion topos ition 005D.
X Se cur eth eveh icleagain strol lingaway (Ypage 147).
X Not ifyaqualif iedspecialistwor kshop orbre akd own service. Sto
pVeh icleLea ve Sto
pVeh icleLea ve
Eng ine Running Eng
ine Running
Wai tTra nsmission Wai
tTra nsmission
Coo ling Coo
ling The
trans mis sion hasoverheated.Pullin gaway canbetempo rarily
imp aire dor notpos sible.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.Do notco ntinu edri vin g
und erany circum stanc es.
X Wait untilth edisp laymes sage disap pearsbef ore pullin gaway. Aux
iliary Battery Aux
iliary Battery
Mal function Mal
function The
auxiliary battery for theauto matictrans mis sion isno longer
bein gch arg ed.
X Vis itaqualif iedspecialistwor kshop atthene xt oppo rtuni ty.
X Un tilth en ,always shiftthetrans mis sion topos ition 005Dbefore
you switchoff theen gin e.
X Be for eleav ingtheveh icle, apply theelec tric park ingbrak e. 232
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 0084 The
trunk lidisopen .
X Clos eth etrunk lid. 0083 The
hoodis open .
G WAR
NING
The open hoodmay blockyour viewwhen theveh icleis in mot ion.
The reisaris kof an acc iden t.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 147).
X Clos eth ehoo d. 0051 At
least onedoor isopen .A warn ingtone also soun ds.
X Clos eall thedoor s. 00CC
Pow erSteering Mal‐ Pow
erSteering Mal‐
fun ctionSee Opera‐ fun
ctionSee Opera‐
tor 'sManual tor
'sManual The
powe rst eer ing ismalf unction ing .
A warn ingtone also soun ds.
G WAR
NING
You willneed touse morefor ce tosteer .
The reisaris kof an acc iden t.
X Chec kwhet heryou areable toapply theex tra for ce req uire d.
X Ifyou areabl eto steer safely: careful lydri ve on toaqualif ied
spe cialistwor kshop .
X Ifyou areuna bletosteer safely: donotdri ve on.Con tactth e
ne ares tqualif iedspecialistwor kshop . 0058
Tru nkPartition Tru
nkPartition
Ope n Ope
n The
trunk partition isopen .
The trunk isloade dto ohigh andtheload ispre ven ting auto matic
clo singof thetrunk partition .
X Stow theload suchth at thetrunk partition can closeunh indere d
and isno tpush edupwar ds.
X Clos eth etrunk partition (Ypage 93). Pho
neNoServic e Pho
neNoServic e Your
vehicleis out side thene two rkpro vider'strans mitter/ rec eiver
ran ge.
X Wait untilth emob ilepho neoper ationalread inesssymb ol
appear sin themult ifunction disp lay. 0059
Dec reaseSpeed Dec
reaseSpeed You
wantedto open theroo fwhile theveh iclewas inmot ion.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Ope nth eroo f(Y page 91). Disp
laymes sage s
233On -boar dcomp uter anddi sp lay s Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 0059
Var io-RoofLow eri ng Var
io-RoofLow eri ng The
roofis no tfull yopen edorclo sed .The hydr aulic sare depr essur-
iz ed.
X Full yopen orclo setheroo f(Y page 91). 0059
Ope n/CloseVar io- Ope
n/CloseVar io-
Roo fCom pletely Roo
fCom pletely The
roofis no tloc ked.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Push orpull and hold theroo fswit chunt ilth eroo fis full yopen or
clo sed (Ypage 91). 0059
Sta rtEngine See Sta
rtEngine See
Ope rator'sMan ual Ope
rator'sMan ual The
on-boar dvol tag eis toolow.
X Start theen gin e.
X Afterappr oximat elytensec onds, repeat theopen ingorclo sing
pro cedure (Ypage 91). The
roofhas been openedand closed several times inarow .The
roo fdri ve has been switched off auto maticallyfor safetyreas ons.
You canopen andclosetheroo fagain afterappr oximat elyten
min utes.
X Swi tchoff theign ition and turnit bac kon .
X Repeat theopen ingorclo singpro cedure (Ypage 91). Clo
seRearSid e Clo
seRearSid e
Win dows Win
dows You
leaveth eveh icleand atleast onerear side window isopen .
X Clos eth eside windows (Ypage 88). 00B2
Che ckWasher Fluid Che
ckWasher Fluid The
wash erflui dlev elin thewash erfluid reservoir has dropped
belo wthemin imum .
X Ad dwash erflui d(Y page 271). Wip
erMalfunction‐ Wip
erMalfunction‐
ing ing The
windsh ield wiper sare malf unction ing .
X Vis itaqualif iedspecialistwor kshop . Haz
ard Warning Haz
ard Warning
Fla shersMalfunc‐ Fla
shersMalfunc‐
tio ning tio
ning The
hazard warn inglamp sare fault y.
X Vis itaqualif iedspecialistwor kshop . Sm
artKey Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 00AF
Key DoesNot Key
DoesNot
Bel ong toVehicle Bel
ong toVehicle You
haveput thewro ngSm artKey intheign ition lock.
X Use theco rrec tSm artKey. 00AF
Tak eYou rKey from Tak
eYou rKey from
Ign ition Ign
ition The
SmartKey isin theign ition lock.
X Remo vetheSm artKey. 234
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 00AF
Obt ain aNew Key Obt
ain aNew Key The
SmartKey needs tobe rep lace d.
X Vis itaqualif iedspecialistwor kshop . 00AF
Rep laceKey Battery Rep
laceKey Battery The
SmartKey battery isdisc harged.
X Chan gethebat tery (Y page 77). 00AF
Don 'tForget Your Don
'tForget Your
Key Key The
SmartKey isno tin theign ition lock.You haveopen edthedri v-
er' sdoor withth een gin eswit ched off.
The mult ifunction disp laysho wsthedisp laymes sage amax imum of
60 sec onds and issim plyarem inder.
X Tak eth eSm artKey withyou when youleaveth eveh icle. 00AF
Key NotDetect ed Key
NotDetect ed
(re ddisp laymes sage ) The
SmartKey isno tin theveh icle.
A warn ingtone also soun ds.
If th een gin eis swit ched off,you can nolonger lockth eveh iclece n-
tr ally orstart theen gin e.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 147).
X Loc ate theSm artKey.
X Pre ss0076 onthest eer ing whee lto confirm thedisp laymes -
sage . Be
caus eth ere isint erf ere ncefrom ast ron gsour ceofradi owave s,
th eSm artKey isno tdet ectedwhils tth een gin eis run ning.
A warn ingtone also soun ds.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 147).
X Inser tth eSm artKey intoth eign ition lockand bring intoke y
mod e. 00AF
Key NotDetect ed Key
NotDetect ed
(whit edisp laymes sage ) The
SmartKey iscur ren tly und etec ted.
X Chan getheloc ation oftheSm artKey intheveh icle.
If th eSm artKey still can notbe det ected:
X Inser tth eSm artKey intoth eign ition lockand turnit to the
des iredpos ition . 00AF
Rem ove 'Start'But ‐ Rem
ove 'Start'But ‐
ton andInsert Key ton
andInsert Key The
SmartKey isco ntinu ally undetec ted.
KE YLE SS-GO istempo rarily malf unction ing orisdef ective. Awarn -
ing tone also soun ds.
X Inser tth eSm artKey intoth eign ition lockand turnit to the
des iredpos ition .
X Vis itaqualif iedspecialistwor kshop . Disp
laymes sage s
235On -boar dcomp uter anddi sp lay s Z

Ind
icat orand warning lamps Gener
alnot es
So me syst ems carryout aself -diagn osis when theign ition isswit ched on.Ther efore, som eind i-
cat orand warn inglamp smay lightup orflas hte mpo rarily. This behav iorisno n-cr itical .Thes e
ind icat orand warn inglamp son lyind icat eamalf unction ifth ey ligh tup orflas haft erstart ing the
en gin eor whils tdriv ing. Saf
ety
Sea tbelt s Wa
rning/
ind icat or
lam p 00510051
Sign altype
Poss iblecauses/con sequenc esand 0050 0050
Solu tions 00E9
0051
Afterst art ing theen gin e,thered seat beltwarn inglamp lightsup for sixsec -
on ds.
The seat beltwarn inglamp remindsth edriv erand fron tpass enger tofas ten
th eir seat belts.
X Fas tenyour seatbelt(Ypage 44). 00E9
0051
Afterst art ing theen gin e,thered seat beltwarn inglamp lightsup. Inaddit ion,
a warn ingtone soun dsfor uptosix sec onds.
The driver'sseat beltisno tfas tene d.
X Fas tenyour seatbelt(Ypage 44).
The warn ingtone ceases . 236
Indi
catorand warning lampsOn-boar dcomp uter and displa ys

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00E9
0051
The redseat beltwar ning lamp lights upafter theengine starts,assoon as
the drive r'sorthe front-passenge rdoor isclosed .
The drive ror front passenger hasnotfastened theirseatbelt.
X Fasten yourseat belt(Y pag e44).
The warning lamp goesout.
There areobjects onthe front-passenge rseat.
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesout. 00E9
0051
The redseat beltwar ning lamp flashes and anintermittent audib lewarni ng
sound s.
The drive ror front passenger hasnotfastened theirseatbelt.The vehicl eis
bei ng drive nfaster than15mph (25km/h )or has brieflybeen drivenfaster
than 15mph (25km/h) .
X Fasten yourseat belt(Y pag e44).
The warning lamp goesoutand theintermittent warningtone cease s.
There areobjects onthe front-passenge rseat. Thevehicl eis bei ng drive nfaster
than 15mph (25km/h )or has brieflybeen drivenfaster than15mph
(25 km/h) .
X Remo vethe objects fromthefront-passenge rseat andstow them inasecure
pla ce.
The warning lamp goesoutand theintermittent warningtone cease s. Indi
cator andwarnin glamps
237On-boardcomput erand displays Z

Safety
systems Warning/
indicator
lamp 00510051
Signal type
Possible causes/co nsequences and0050 0050
Solutions 0027004D
0051
0027 (USAonly), 004D(Canada only):thered brake system warning lampis
lit while theengine isrunning.
A warning tonealsosounds.
G WARNING
The brake boosting effectismalfunction ingand thebraking characterist icsmay
be affected.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 147).
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027004D
0051
0027 (USAonly)or004D (Canada only):thered brake system warning lamp
is lit while theengine isrunning. Awarning tonealsosounds.
G WARNING
There isnot enough brakefluidinthe brake fluidreservoir.
The braking effectmaybeimpaired.
There isarisk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 147).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fiedspecialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027
0051
USA only: thered brake system warning lampislit while theengine isrun-
ning. Themultifunct iondisplay alsoshows adisplay message withthe0026
symbol.
The brake pads/linings havereached theirwear limit.
X Visit aquali fiedspecialist workshop. 238
Indicator
andwarning lampsOn-board computerand displays