2020 MERCEDES-BENZ SL ROADSTER light

Do
not drink ortake drugsand drive orallo w
any one todrive whoha sbe en drinking or
taki ngdru gs.
Emi ssion co ntro l G
DA
NGE R
Co mbu stion eng inesemi tpo isono us
exh aust gases such ascar bonmono xide.
Inha ling the seexh aust gases isha zar dous to
he alth and canresultin po isoni ng. Thereisa
ris kof fatal inju ry.The refore ,neve rle av ethe
eng inerunning anencl osedsp ace withou t
ad eq uate venti latio n.
Ce rta ineng inesystem sar ede signe dto kee p
the level ofpoisono uscomp onents inexh aust
fu mes withi nlega llimits .
The sesystem sonl ywo rkatpeak efficiency if
the yar eser viced exa ctly inacc ordance with
the manuf actu rer'ssp eci ficati ons. Alwaysha ve
wo rkon the enginecarriedou tat aqu alifi ed
sp eci alistwo rksh op.Me rced es-Benz recom-
mend stha tyo uus ean author izedMe rced es-
Benz Center forthispu rpo se. Inpartic ular ,
wo rkreleva ntto safety oron safety -related
sy stem smu stbe car riedou tat aqu alifi ed spe-
cia list wo rksh op.
The enginesetti ngsmustnot becha nge d
und erany circum stances .Fur thermo re,all
sp eci fic ser vicewo rkmu stbe car riedou tat
reg ular inte rvalsand inacc ordance with the
Me rced es-Benz servicereq uirem ents .Deta ils
can befou ndinthe Mainte nance Booklet. EC
Odis play
The ECO disp laysho wsyouhow economi cal
yo ur drivin gsty leis.The ECO disp layas sists
yo uin ach ievin gthe mos teco nomi caldrivin g
sty lefor the selecte dsetti ngsand prevailing
cond itions. Your drivin gsty lecan signi ficantl y
infl uence thevehicle's cons umption. 0043
Accel eration
0044 Coasting
0087 Consta nt
0085 Add itiona lra nge achieved
Ra nge 0085issho wnund erBon usfr. Start Bon
usfr. Start
and represents theadditio nal range achieved
si nce thebeginning ofthe journey asares ult
of an adapted drivin gsty le.
If the fuel level hasdro pped into thereserve
ra nge ,the FuelLow Fue
lLow message issho wninthe
mu ltifu nctio ndisp layins tea dof range 0085.The
00B6 warning lamp inthe instrument cluster
al so lights up(Ypage 242 ). Dr
ivi ng tips
151Dr ivi ng andparki ng Z

The
ECO display consistsof three section s,
with aninner andouter area.Thesection scor-
respond tothe following threecategories: 0043
Acce
leration (evaluation ofall
acceleration processes):
R the outer areafillsupand the
inner arealights upgreen: moder-
ate acceleration ,especially at
higher speeds
R the outer areaempties andthe
inner areaisgray: sporty acceler-
ation 0044
Coasting
(evaluation ofall deceler-
ation processes):
R the outer areafillsupand the
inner arealights upgreen: antici-
patory driving, keeping yourdis-
tanc eand early release ofthe
accelerator. Thevehicle can
coast without useofthe brakes.
R the outer areaempties andthe
inner areaisgray: frequent heavy
braking 0087
Constant
(continuous evaluation
over theentir ejourney):
R the outer areafillsupand the
inner arealights upgreen: con-
stant speed andavoidance of
unnec essary acceleration and
deceleration
R the outer areaempties andthe
inner areaisgray: fluctuations in
speed The
three innerareas display thecurrent driv-
ing style andlight upgreen asaresult ofapar-
ticularly economicaldriving style.Dependin g
on the driving situation, uptotwo areas may
light upsimultaneously.
At the beginning ofthe journey, thethree
outer areas areempty andfillup asaresult of
econom icaldriving. Ahigher levelindicates a
more econom icaldriving style.Ifthe three
outer areas arecompletely filledatthe same
time, thedriver hasadopted themost eco-
nomical drivingstyleforthe selected settings
and prevailing conditions.TheECO display
border lightsup.
The ECO display doesnotindicate theactual
fuel consumpt ion.Theadditionally achieved range
display edunder Bonus fr.start Bonus
fr.start does
not indicate afixed consumpt ionreduction .
In addition todriving style,theactual con-
sumption isaffect edbyother factors,such as:
R load
R tire pressure
R cold start
R choice ofroute
R active electric alconsumer s
These factorsare not included inthe ECO dis-
play.
An econom icaldriving stylespecially requires
driving atmoderate enginespeeds.
Achievin gahigher valueinthe categories
"Accelerat ion"and"Constant ":
R observe thegearshift recommendations .
R drive thevehicle indrive program Cor E.
In urban trafficand stop- start traffic,drive pro-
gram Cis recomm ended.
On long journeys ataconst antspeed, e.g.on
the highway, onlytheouter areafor"const ant"
will change.
The ECO display summarizes thedriving style
from thestart ofthe journey toits completion .
Therefore, therearemore marked changes in
the outer areas atthe start ofajourney. On
longer journeys, therearefewer changes. For
more marked changes, performamanual rest
(Y page 196).
Further informationonthe ECO display
(Y page 195). Br
aking
Import antsafety notes G
WARNIN
G
If you shift down onaslippery roadsurface
in an attempt toincrease theengine's brak-
ing effect ,the drive wheels couldlosetheir
grip. There isan increased dangerofskid-
ding andaccident s.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface. 152
Driving
tipsDriving andparking

Downh
illgrad ient s !
On
long,steep gradie nts, you mus tred uce
th eload onthebra kes.To use engin ebra k-
in g, shi ftto alowe rgear ingoo dtime. This
hel psyou toavo idoverh eating th ebra kes
and wear ing th em out exce ssi vel y.
Whe nmak ing use oftheen gin ebra king
ef fect ,it is pos siblethat adri ve whee lmay
no ttu rn forsom etime, e.g. inthecas eof
sudd enlych ang ing or slip peryro ad sur face
co nd ition s.Thi sco uld causedam agetothe
dri ve train .Thi styp eof dam ageisno tco v-
ere dby theMer cedes -Ben zwarr anty.
Chan geinto alowe rgear ingoo dtime onlong
and steep down hillgradie nts. Thi sis esp ecially
imp ortant ifth eveh icle islade n.
Thi salso appli esifyou haveact ivat edcruise
co ntro lor Active Distanc eAs sis tDI ST RON IC.
Hea vyandligh tloa ds G
WAR
NING
If you restyour foot on thebra kepeda l
whil edri vin g,thebra king sys tem can over-
heat .Thi sin cr ease sth est opp ing dis tanc e
and canevencau sethebra king sys tem to
fail .The reisaris kof an acc iden t.
Nev eruse thebra kepeda las afo ot res t.
Nev erdepr essthebra kepeda land the
acc eler ator peda lat thesam etime.
! De
pre ssing thebra kepeda lco nstant ly
res ultsin exce ssi ve and premat ure wear to
th ebra kepads .
If th ebra keshav ebee nsubj ectedto aheav y
load ,do notst op theveh icle imm ediately, but
dri ve on fora sho rtwhil e.Thi sallow sth eair-
flo wto cool thebra kesmo requic kly.
Wet road s If
you havedri ven fora lon gtime inheav yrain
wit hout braking ,th ere may beadela yedreac-
ti on from thebra keswhen braking forth efir st
ti me. Thismay alsooccur aftertheveh icle has
bee nwash edordriven thro ugh deepwat er.
You then hav eto depr essthebra kepeda l
mo refirmly. Main tain agr eat erdis tanc efrom
th eveh icle in fron t.
Af terdri vin gon awet road orhav ing th eveh i-
cl e wash ed,brakefirmly whilepayin gat te nt ion to
thetraff icco nd ition s.Thi swill warm upthe
bra kediscs,th ere bydryi ngthem morequic kly
and protecting th em again stcorrosi on.
Lim ited brak ing performa nce onsalt-
tr eat edroad s If
you drive on salt edroads, alayer ofsalt resi-
due may form onthebra kediscsand brake
pads .Thi scan result inasig nific ant lylon ger
bra king distanc e.
R In order topre ven tany salt build -up,apply
th ebra kesoc cas ionally whilepayin gat te n-
ti on tothetraff icco nd ition s.
R Care fullydepr essthebra kepeda land the
beg inning and endof ajo urn ey.
R Main tain agr eat erdis tanc eto theveh icle
ahea d.
Ser vici ngthebr ak es !
The
brakeflui dlev elmay betoolow, if:
R ifth ered brakewarn ing lamp lightsup in
th einst rum entcl ust erand
R you hear awarn ing to ne whil eth een gin e
is run ning
Obs erveaddit ionalwarn ing mes sagesinthe
mult ifunction display.
The brakeflui dlev elmay betoolow due to
bra kepad wear orleak ing bra kelines.
Hav eth ebra kesys tem checke dimm edi-
at ely. Consult aqualif iedspecialis twor k-
sho pto arr ang eth is.
! As
theES P®
sys tem ope rates aut omati-
cal ly,theen gin eand theign ition mus tbe
swit ched off(t he Sm artKey mustbe inpos i-
ti on 0092 or0047 intheign ition lockor the
St art /S topbut tonmus tbe inpos ition 0092or
0047), if:
R thepar king bra keistested usin gabra ke
dyn amo meter.
R theveh icle istowed withth efron taxl e
rais ed.
Br ak ing trigg ere daut omatically byESP®
may causesev ere dam agetothebra kesys -
te m.
Al lch ecks and main tenan cewor kon thebra ke
sys tem mus tbe car riedout ataqualif iedspe-
ci alis twor kshop .
Hav ebra kepads inst alled andbrakeflui d
rep laced ataqualif iedspecialis twor kshop . Dri
ving tips
153Driving andpa rki ng Z

Cru
isecont rollever 0043
Tostore thecur ren tspee dor ahigh er
spee d
0044 Tostore thecur ren tspee dor calls upthe
last store dspee d
0087 Tostore thecur ren tspee dor alower
spee d
0085 Todeac tivate cruise control
When youactivat ecr uise control, thest ore d
spee dis sho wninthemult ifunction displ ayfor
fiv esec onds. The spee dis then perm anently
displ ayed inthest atus indicat ortoget her with
th e00B2 symbol.
In veh icleswit hasegm entcir cle inthespee d-
ome ter, thesegm ents bet ween thecur ren tly
st ore dspee dand theen dof thesegm entcir -
cle light up.
St ori ng, maintaini ngand callin gup a
spe ed St
ori ng and maintaini ngaspe ed
X Ac cel erat eth eveh icle tothedesir edspee d.
X Briefl ypres sth ecr uise control leve rup 0043
or down 0085.
X Remo veyour footfr om theacc eler ator
pedal.
Cruis econ trol isact ivat ed. The vehicle auto -
mat icall ymain tainsth est ore dspee d.
You canstore thecur ren tspee difyou are
driv ingfast erthan 20 mph (30km/h).
i Cruis
econ trol may beunab leto main tain
th est ore dspee don uphill gradients.The
st ore dspee dis res umed whenthegrad ient
eve nsout .Cruis econ trol main tainsth e
st ore dspee don down hillgrad ientsby auto -
mat icall yapplyin gth ebrak es. St
ori ng orcalli ngup aspe ed G
WAR
NING
If you callupthest ore dspee dand itdiff ers
fr om thecur ren tspee d,theveh icle acceler -
ate sor dec eler ates.Ifyou donotkn ow the
st ore dspee d,theveh icle coul dacc eler ate
or brak eune xpectedly. Thereis aris kof an
acc iden t.
Pay attentio nto theroad andtraff iccon di-
tio ns bef ore calli ngup thest ore dspee d.If
you donotkn ow thest ore dspee d,store the
desir edspee dagain .
X Briefl ypull thecr uise control leve rto wards
you 0087.
X Remo veyour footfr om theacc eler ator
pedal.
The first tim ecr uise control isact ivat ed, it
st ore sth ecur ren tspee dor reg ulate sth e
spee dof theveh icle totheprev iously store d
spee d.
Set tingaspe ed G
WAR
NING
Keep inmin dth at itmay takeabrie f
mom entunt ilth eveh icle has made thene c-
ess ary adjust men ts.
In cr ease ordec reas eth eset vehicle spee d
to avalue that theprev ailingroad condition s
and legal speedlimit sperm it.Other wise,
sudde nand unexpected acc eler ationor
dec eler ationof theveh icle coul dcaus ean
acc iden tand /or serious injury toyou and
ot her s.
X To
adjust theset speedin1mp hincr e-
men ts(1 km /h incr emen ts):brie flypres s
th ecr uise control leve rup 0043 tothepres -
sure pointfor ahigh erspee d,or down 0085
for alower speed.
Ev ery timeth ecr uise control leve ris
pres sedupordown ,th elast spee dstore dis
inc reas edorreduc ed.
X To
adjust theset speedin5mp hincr e-
men ts(10 km/h incr emen ts):brie fly
pres sth ecr uise control leve rup 0043 past the 156
Driv
ingsyst emsDriv ingand parking

pressure
pointforahigher speed, or
down 0085for alower speed.
Ever ytime thecruise control lever is
pressed upordown, thelast speed storedis
incr eased orreduced.
i The
speed indicat edinthe speedomet er
may differ slightly fromthespeed stored.
i Cruise
control isnot deactiv atedifyou
depress theaccelerat orpedal. Forexample,
if you accelerat ebriefly toovert ake,cruise
con trol adjusts thevehicle's speedtothe
last speed storedafter youhave finished
overt aking.
Deactivat ingcruise control There
areseveral waystodeactiv atecruise
con trol:
X Brief lypress thecruise control lever for-
wards 0043.
or X Brak e.
Cruise control isautomatic allydeactiv atedif:
R you engage theelect ricparkin gbrake
R you aredriving atless than 20mph
(30 km/ h)
R ES P®
int erven esoryou deactiv ateESP®
R Brak eAssist interven es
R you move outoftran smission position005B
If cruise control isdeactiv ated,youwillhear a
warning tone.You willsee theCruise Con‐ Cruise
Con‐
trol Off trol
Offmessage inthe multifun ction dis-
play forapproximat elyfive secon ds.
i When
youswitch offthe engin e,the last
speed storediscleared. Active
Distance AssistDISTRON IC
General notes Ac
tive Distance Assist DISTRONIC regulates
the speed andautomatic allyhelps youmain-
tain thedistanc efrom thevehicle detectedin
fron t.Vehicles aredetec tedwith theaidofthe
radar sensor system. Active Distance Assist
DIS TRONIC brakesautomatic allytoavoid
exc eeding thesetspeed ortomaint ainthe
designat eddistanc efrom thevehicle infron t.
You must select alower gearingood timeon
long andsteep downhill gradients,especially if
the vehicle isladen. Bydoing so,you willmake
use ofthe brakin geffec tof the engin e.This
relieves theload onthe brake system andpre-
vent sthe brakes fromoverheat ingand wear-
ing too quickly.
If Ac tive Distance Assist DISTRONIC detects
that thereis arisk ofacollision withthevehi-
cle infron t,you willbewarned visuallyand
audibly. Active Distance Assist DISTRONIC
cann otpreven ta collision withoutyourinter-
vent ion. Anintermit tentwarning tonewill then
sound andthedistanc ewarning lampwilllight
up inthe instrument cluster.Brak eimmedi-
ately inorder toincr ease thedistanc efrom
the vehicle infron t,or take evasive action,pro-
vided itis safe todo so.
For Active Distance Assist DISTRONIC to
assist youwhen driving ,the radar sensor sys-
tem must beoperation al.
Ac tive Distance Assist DISTRONIC operates in
the speed rangebetween 0mph (0km/ h)and
120 mph (200 km/h).
Do not useActiv eDis tance AssistDISTR ONIC
wh ile dri vin gon roa dswith stee pgra dients .
As Activ eDis tance AssistDISTR ONICtra ns-
mits rada rwa ves ,it can resemb lethe rada r
de tecto rsof the responsi ble au thor ities. You
can referto the releva ntcha pterin the Opera -
tor' sMa nua lif qu esti ons areas ked abou tthi s.
i USA
only:
Thi sde vic eha sbe en appro ved bythe FCC
as a"V eh icu larRa darSys tem" .The rada r
sen sor isinte ndedfor usein an automo tive
ra da rsy stem only.Re mov ing,tam perin g
wi th, oralteri ngthe devic ewi llvoi dany war-
ra ntie s,and isnot permi tted bythe FCC .Do
not tamperwi th, alter, orusein any non-
ap pro ved way. Dr
ivi ng system s
157Drivi ng andparki ng Z

Make
surethatyoumaintain asufficiently safe
distance fromthevehicle infront .Adjust the
distance tothe vehicle infront ifnecessary. Cruise
controllever
X To increase: turncontrol0087 toward 0044.
Act ive Distanc eAssist DISTRONIC then
maintains agreater distance between your
vehicle andthevehicle infront .
X To decrease: turncontrol0087 toward 0043.
Act ive Distanc eAssist DISTRONIC then
maintains ashorter distance between your
vehicle andthevehicle infront .
Active Distance AssistDISTRONIC dis-
plays inthe instrum entcluster Displays
inthe speedometer When
Active Distanc eAssist DISTRONIC is
activated, oneormore segments 0044inthe set
speed rangelightup.
If Act ive Distanc eAssist DISTRONIC detectsa
vehicle infront ,segments 0044from speed of
the vehicle infront 0087tostored speed0043light
up.
i For
design reasons, thespeed display ed
on the speedometer maydiffer slightly from the
speed setforActive Distanc eAssist
DISTRONIC.
Display whenActive Distance Assist
DISTRONIC isdeactivated 0043
Vehicle infront ,if detected
0044 Distanc eindicator, currentdistance tothe
vehicle infront
0087 Specified minimum distancetothe vehicle
in front ;adjustable
0085 Your vehicle
X Select theAssistance Graphic Assistance
Graphicfunction
using theon-board computer (Ypage 200).
Display whenActive Distance Assist
DISTRONIC isactivated 0043
Vehicle infront ,if detected
0044 Specified minimum distancetothe vehicle
in front ;adjustable
0087 Your vehicle
0085 Active Distanc eAssist DISTRONIC
X Select theAssistance Graphic Assistance
Graphicfunction
using theon-board computer (Ypage 200).
You willinitially seethestored speedfor
approximately fiveseconds whenyouactivate
Act ive Distanc eAssist DISTRONIC. 162
Driving
systemsDriving andparking

Other
vehicles changing lanes Act
ive Dist ance Assist DISTRONIC hasnot
detect edthe vehicle cuttinginyet. Thedis-
tanc eto this vehicle willbetoo short .
Nar row vehicles Act
ive Dist ance Assist DISTRONIC hasnotyet
detect edthe vehicle infron ton the edge of
the road because ofits narrow width.Thedis-
tanc eto the vehicle infron twill betoo short .
Obstr uctions andstationary vehicles Act
ive Dist ance Assist DISTRONIC doesnot
brake forobstacles orstat ionary vehicles. If,
for example, thedetect edvehicle turnsa cor-
ner and anobstacle orstat ionary vehicle is revealed,
Active Dist ance Assist DISTRONIC
will notbrake forthem.
Crossing vehicles Act
ive Dist ance Assist DISTRONIC maymis-
taken lydetect vehicles thatarecross ingyour
lane.
If you activat eAct ive Dist ance Assist
DIS TRONIC underthefollowing conditions, the
vehicle couldpullaway unintentionally:
R at traff iclights withcross ingtraff ic,for
example
R ifthere isavehicle infron t,after across ing,
with theHOLD function activat ed
Active Distance AssistDISTRON ICwith
Active Steering Assist General
notes Act
ive Dist ance Assist DISTRONIC withActive
St eering Assistassists youinkeeping thevehi-
cle inthe cent erofthe driving lanebymeans
of moderate steeringinter ventions inaspeed
range from0-125 mph (0-200 km/h).
It monitors lanemarkings andvehicle sin front
of you rvehicle bymeans ofcamera system0043
at the top ofthe windshi eld. 164
Drivi
ngsystemsDrivi ngand parking

In
aspeed rangefrom0-37 mph
(0 -60 km/h ),Active Steering Assistfocuses
on the vehicle infront, taking intoaccount
lane markings, e.g.when followingvehicle sin
a traffic jam.
At speed sof more than37mph (60km/h),
Active Steering Assistfocuses onclear lane
markings (leftandright), onlyfocusing onthe
vehicle infront ifdetected lanemarkings are
not present atspeed sof up to80 mph
(130 km/h).
If these conditions arenot present, Active
Steering Assistcannot provide assistance.
Active Distance AssistDISTRONIC mustbe
active inorder forthe function tobe avai lable.
Important safetynotes
Active Distance AssistDISTRONIC withActive
Steering Assistcanneither reducetherisk of
an accident ifyou failtoada ptyou rdriving
style, noroverride thelawsof phys ics.Itcan-
not take intoaccount road,weather ortraffic
conditions. ActiveDistance AssistDISTRONIC
with Active Steering Assistisonly anaid.You
are responsib lefor the distance tothe vehicle
in front, forvehicle speed,for braking ingood
time andforstayi nginyou rlane.
Active Distance AssistDISTRONIC withActive
Steering Assistdoesnotdetect roadandtraf-
fic conditions anddoes notdetect allroad
users. Ifyou arefollow ingavehicle whichis
driving towards theedge ofthe road, your
vehicle couldcome intocontact withthecurb
or other roadbounda ries.Beparticul arly
awa reofother roadusers, e.g.cyclists, that
are directly nexttoyou rvehicle .
Obstacles suchasreflector postsinthe lane
or projecting outinto thelane arenot detec-
ted.
An inapp ropria testeering intervention, e.g.
after youhave intentionally drivenoveralane
marking, canbecorrected atany time ifyou
steer slightlyinthe opposi tedirection.
Active Distance AssistDISTRONIC withActive
Steering Assistcannot continuously keepyour
vehicle inlane. Insome cases, thesteering
intervention isnot sufficie ntto bring thevehi-
cle back tothe lane. Insuch cases, youmust
steer thevehicle yourself toensure thatit
does notleavethe lane. The
supp ortprovide dby the system canbe
impa iredif:
R there ispoor visibility, e.g. due toinsuffi-
cient illuminatio nof the road, ordue to
snow, rain,fogorheavy spray
R there isglare ,e.g. from oncoming traffic,
the sun orreflection fromother vehicle s
(e.g. ifthe road surface iswet)
R the windshi eldisdirty, fogged up,dama ged
or covered, forinstance byasticker, inthe
vicinity ofthe camera
R there arenolane markings, orseveral
unclea rlane markings arepresent, e.g.
arou ndconstruction sites
R the lane markings areworn away,dark or
covered up,e.g. bydirt orsnow
R the distance tothe vehicle infront istoo
short andthus thelane markings cannotbe
detected
R the lane markings changequickly, e.g.lanes
branch off,cross oneanother ormerge
R the road isnarrow andwindi ng
R there arehighl yvaria bleshade conditions
on the roadw ay
The system isswitched topassi veand nolon-
ger assi stsyou byperforming steeringinter-
ventions if:
R you actively changelane
R you switch onthe turn signal
R you take yourhands offthe steering wheel
or do not steer foraprolonge dperiod of
time
i Once
youhave finished changing lanes,
Active Steering Assistautoma ticallyreacti-
vates.
Active Steering Assistcannot provide assis-
tance:
R on very sharp corners
R when aloss oftire pressu reor adefective
tire has been detected anddispl ayed
Observe theimportant safetynotesonActive
Distance AssistDISTRONIC (Ypage 158).
The steering interventions arecarried outwith
a limi ted steering moment. Thesystem
requi resthe driver tokeep hishands onthe
steering wheelandtosteer himsel f.
If you donot steer yourself orifyou take your
hands offthe steering wheelforaprolonge d
period oftime, thesystem willfirst alertyou
with avisua lwarning. Asteering wheelsymbo l Drivi
ngsystems
165Drivingand parking Z