brakes MERCEDES-BENZ SLC ROADSTER 2020 Owner's Manual

Important
safetynotes.................. 258
Jump starting .................................2 61
Overvi ew....... ................................. 258
Rep lacing .......................................261
Belt
see Seat belts
Belt warni ng....... .................................. 42
Blin dSpot Assist
Activating/d eactivating .................176
Displ aymessa ge....... ..................... 199
Notes/fu nction..............................164
Blueto oth®
Searchi ngfor am obilephone ........222
Searchi ngfor am obilephone
(de vice mana ger)........................... 223
see also Digita lOpera tor's Man-
ua l....... ....... ....... .............................218
Tel epho ny....... ....... ........................222
Brake AssistSyste m
see BAS (Brake AssistSystem)
Brake fluid
Displ aymessa ge....... ..................... 189
Notes .............. ...............................302
Brake forcedistributi on
see EBD (electronic brakeforce
dis tribu tion)
Brake lamps
Adap tive....... ....................................60
Dis play mes sage ............ ................194
Brake s
ABS ............ ........................ ..............57
Ada ptive Bra keAssi st............ .......... 59
BAS ............ ............ ..........................57
Bra kefluid(no tes)............ ............ .302
Displ aymessa ge....... ..................... 184
EBD .............. ....................................63
High -perfo rmance brakesystem ....141
Impo rtant safety notes ............ ......139
Mai ntenance .................................. 140
Pa rking brake............ ....................135
Ri ding tips............ ............ ..............139
Wa rning lamp ............ .....................211
Breakdo wnassi stanc e
Re flective safety jacket ............ ......252
Whe rewillIf ind...? ............ ............ 252
see Flattire
see Towingaway Brightn
esscontrol (instrumen t
cl uster lightin g)........... ........................32
Bulbs
see Repla cing bulbs C
Cal ifornia
Impo rtant notice forreta ilcus-
tomers andlessee s........... ........... ....24
Cal ling up am alfun ction
see Disp laym essages
Car
see Vehi cle
Care
Carw ash. .......... ........... ..................247
Exhau stpip e........... ........... ............251
Exterior lights ....... ......................... 250
Matte finish................................... 249
Notes .............................................246
Pai nt....... ....................................... 248
Pow erwa sher ................................248
Rea rview camera .......................... 251
Sensors ......................................... 251
Was hing byhand ........................... 247
Whee ls....... ....................................250
Windo ws....... ................................. 250
Wip erbla des ....... ........................... 250
CD
see also Digita lOpera tor's Man-
ua l....... ....... ....................................218
CD player (on-bo ardcomputer) ........174
Ce nter conso le
Lowe rsection .................................. 35
Uppe rsection .................................. 34
Ce ntral locking
Automa ticlocking (on-board
compu ter)....... ...............................179
Locking/u nlocking(SmartKe y)....... .66
Cha nging bulbs
Sid em arkerlamps (rear)...... ......... 103
Child
Rest raintsyst em .............................. 55
Child seat
For ward- facing restraint system...... 56
On thef ront-pa sse nger seat ............ 56
Rearwar d-facin grestraint system.... 56 6
Index

Rear
viewc amera .......................... 160
Dri ving tips
Ac tive Distanc eAssist
DI ST RONI C....................................1 50
Aut oma tict rans mis sion .................1 28
Brakes .............. .............................139
Break-in period....... .......................117
Downhi llgrad ient....... .................... 140
Drinking anddriving....... ................137
Driving inwinter .............................141
Driving onfloo ded road s....... ....... ..141
Driving onwet road s....... ....... ........141
Exhaus tcheck ...............................138
Fuel ................................................ 137
Gene ral....... ....... ............................ 137
Hydr oplaning ................................. 141
Icy road surfaces....... .................... 141
Limi tedbraking effici ency onsal-
ted road s....... ....... ......................... 140
Snow chains....... ........................... 271
Subjecti ngbra kes toaloa d. ...... .... 140
Wet road surface....... .................... 140
DVD video
Opera ting(on-boa rdcompu ter)..... 174
see also Digita lOpera tor's Man-
ua l....... ....... ....................................218
DY NAMI CSELEC Tb utton ..................124 E
EA SY-E NTRY feature
Activating/d eactivating .................179
Function/notes ................................91
EA SY-E XITfeature
Cra sh-resp onsive.............................92
Functio n/notes ................ ................ 91
Swi tching on/off ................ ...........179
EBD (electro nicbrake forcedistri -
butio n)
Disp laym essage. <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011[ 186
Functi on/note s.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 63
EC Od isplay
Functi on/note s.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 138
On-bo ardcomp uter.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011[ 171
EC Os tart/ stopfunc tion
Auto maticengi ne start<0011001100110011001100110011001100110011001100110011001100110011
00110011[ 122
Auto maticengi ne switch-o ff.......... 121
Dea ctiva ting/a ctivating<0011001100110011001100110011001100110011001100110011001100110011
0011[ 122Ge
nera linfo rma tion <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011[ 121
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 121
Introd uction<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 121
El ec tron icStab ility Pro gram
see ESP®
(El ectro nicStab ility Pro gram)
Eme rgency
Auto maticmeasures afte ran
acci dent <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 53
Eme rgencyr eleas e
Drive r'sdoo r.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 73
Tru nk<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 75
Veh icle. <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 73
Eme rgencys pare whee l
Ge nera lnotes <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 295
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 294
Re movi ng<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 295
Stora gelocati on<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 295
Stow ing<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 295
Tec hnic alda ta <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 295
Eme rgencyT ension ingD evices
Activa tion<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 50
Emi ssionsc ontro l
Servi ceand warranty info rma tion ....24
En gine
Ch eck Engine warning lamp ........... 214
Disp laym essage <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 195
ECO start/stop function................ 121
Engine number<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 299
Irre gularr unni ng<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 123
Ju mp-s tarting<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 261
Ove rview <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 245
Starti ngpro blems <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 123
Starti ngthe engi newith the
Smar tKey<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 120
Starti ngwith KEYL ESS-GO ............. 120
Swi tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 135
Tow -star ting(vehicle ).<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 266
En gine elec tron ics
Note s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 297
Pro blem (ma lfunction) <0011001100110011001100110011001100110011001100110011001100110011
001100110011[ 123
En gine oil
Add ing<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 242
Add itives <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 302
Ch ecki ngthe oillev el <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011[ 242
Ch ecki ngthe oillev el using the
di psti ck<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 242
Disp laym essage <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 197
Fil ling cap acity<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 302 In
dex
9

R
malfu nctions anddefects inimporta ntsys-
tem components, e.g.lights,brakes
R vehicl ereactions andopera tingconditions
in specia ldrivi ng situa tions, e.g.airbag
depl oyme nt,intervention ofstabi litycontrol
systems
R ambi entconditions, e.g.outsid etempera -
ture
This data isof an exclusi velytechnical nature
and canbeused to:
R assi stinrecognizing andrectifyi ngmalfu nc-
tions anddefects
R anal yzevehicl efunctions, e.g.after anacci-
dent
R optimize vehiclefunctions
The data cannot beused totrace thevehicl e's
movements.
When yourvehicl eiss erviced ,technical infor-
mation canberead from theevent datamem-
ory and malfu nction datamemory .
Services include,for exampl e:
R repa irservices
R service processe s
R warra nties
R qua lityassu rance
The vehicl eisr ead outbyemplo yeesofthe
service network (includingthemanufa cturer)
usi ng specia ldiagnostic testers. Moredetailed
informatio niso btai ned from it,ifrequ ired.
After amalfunction hasbeen rectified ,the
informatio nisd eleted from themalfu nction
memory oriscontinual lyoverwri tten.
When operatingthevehicl e,situa tions are
conceivab lein whi chthis technical data,in
connection withother informatio n(ifneces-
sary ,under consulta tionwith anauthorized
expert), couldbetraced toap erson.
Examples include:
R accide ntreports
R dama getothe vehicl e
R witness statements
Further additional functions thathave been
contractuall yagree duponw iththe customer
all ow certain vehicledata tobe conveyed by
the vehicl easw ell. The additional functions
includ e,for exampl e,vehicl elocati onincase
of an emergency . COMA
ND/Me rcedesmeconne ct
(Can ada: TELE AID)
If the vehicl eise quippe dwithCOMAND or
Mercede smeconnect, additional dataabout
the vehicl e'sopera tion,theuse ofthe vehicl e
in certain situations, andthelocatio nofthe
vehicl eisc ompil edthrough COMAND orthe
Mercede smeconnect system.
For additional informatio n,plea serefer tothe
COMAND UserManua lorD igital Opera tor's
Manua land/or theMercede smeconnect
Terms andCondi tions. Eve
ntdata recorders
USA only:
This vehicl eise quippe dwithanevent data
recorder (EDR).Thisvehicl eise quippe dwith
an event datarecorder (EDR).Themain pur-
pose ofan EDR isto record, incertain crashor
near crash-li kesitua tions, suchasan air bag
depl oyme ntor hitting aroad obstacl e,data
that willassi stinundersta ndinghowavehi-
cle's systems performed .The EDR isdesi gned
to record datarelated tovehicl edyna mics and
safety systems forashort perio doftime, typi-
call y30seconds orless.
The EDR inthis vehicl eisd esigned torecord
such dataas:
R How varioussystems inyou rvehicl ewere
opera ting
R Whether ornot thedriver andpass enger
safety beltswerebuckle d/fastened
R How far(ifat all)the driver wasdepre ssing
the accele ratorand/or brakepedal;and,
R How fastthevehicl ewastraveli ng
These datacanhelp provid eabetter under-
standing ofthe circumstances inwhich
crashes andinjurie soccur. NOTE: EDRdata
are recorded byyou rvehicl eonly ifan on-triv-
ial crash situationoccurs; nodata arerecor-
ded bythe EDR under normal drivingcondi-
tions andnopersona ldata (e.g. name, gender,
age and crash location)are recorded .How-
ever, other parties,such aslaw enforcement
could combine theEDR data withthetype of
persona llyidentify ingdata routinel yacqu ired
duri ngacrash investiga tion.
Access tothe vehicl eand/or theEDR isnee-
ded toread datathatisrecorded byan EDR,
and specia lequ ipment isrequ ired. Inadd ition Data
storage
29Introductio n Z

G
WARNING
If BAS ismalfu nctioning, thebraki ngdis-
tance inan emerge ncybraki ngsitua tionis
increas ed.There isar isk ofan accide nt.
In an emerge ncybraki ngsitua tion, depre ss
the brake pedalwith full force. ABSprevents
the whee lsfrom locking.
Braking X
Keep thebrake pedalfirmly depre sseduntil
the emerge ncybraki ngsitua tionisover.
ABS prevents thewhee lsfrom locking.
The brakes willfunction asusu alonce you
rele ase thebrake pedal.BAS isdea ctivated. Ac
tive Brake Assist
Gene ralinfo rmation i
Observe
the"Impo rtantsafety notes" sec-
tion (Ypag e57).
Active BrakeAssist consists ofad ista nce
war ning function withanautonomous braking
function andAdapti veBrake Assist.
Active BrakeAssist canhelp youtominimi ze
the risk ofac ollision with thevehicl einf ront
or redu cethe effects ofsuch acollision.
If Active BrakeAssist detects thatthere isa
risk ofcolli sion, youwillbew arned visually
and acou stical ly.I fy ou do not react tothe vis-
ua lcolli sion warning orthe warning tone,
au tonomous brakingcan beinitia tedincritical
situa tions. Ifyou applythe brake yourself ina
critical situation, Adapti veBrake Assist ofthe
Active BrakeAssist system supports you.
Important safetynotes In
particu lar,the detection ofobstacl escan be
impa iredif:
R there isdirt onthe sensors oranythi ngelse
covering thesensors
R there issnow orhea vyrain
R there isinterference byother radarsource s
R there arestrong radarreflectio ns,forexam-
ple inparki nggara ges
R an arrow vehicleist raveli nginfront, e.g.a
motorbike R
av ehicl eist raveli nginfront onadiffer ent
line
R you aredrivi nganew vehicl eorservici ngon
the Active BrakeAssist system hasjust
been carrie dout
Observe theimporta ntsafety notesinthe
"Brea king-in notes"section (Ypag e117).
Follo wing dama getothe front endofthe vehi-
cle, have theconfigu rationandopera tionof
the rada rsensor checked ataq ualified spe-
cial istworksho p.This alsoa ppliest oc ollisions
at slow speedswhere thereisno visib ledam-
age tothe front ofthe vehicl e.
Ac tivating /deactivating Active
BrakeAssist isau tomatical lyactive
after switching onthe ignitio n.
You canactiva teor dea ctivate ActiveBrake
Assist using the on-board computer
(Y pag e176) .When deactivated, thedista nce
war ning function andtheautonomous braking
function arealsod eactivated.
If Active BrakeAssist isdea ctivated, the00D4
symb olapp ears inthe assi stance graphicdis-
pla y.
Di stance warningfunctio n Gene
ralinfo rmation
The dista ncewarni ngfunction canhelp youto
minimi zethe risk ofafront-end collision with a
vehicl eahea dorredu cethe effects ofsuch a
colli sion. Ifthe dista ncewarni ngfunction
detects thatthere isar isk ofac ollision, you
wil lbew arne dvisuallya nd acou stical ly.
Important safetynotes
i Observe
the"Impo rtantsafety notes" sec-
tion fordrivi ngsafety systems (Ypag e57). G
WARNING
The dista ncewarni ngfunction doesnot
react:
R to peop leor anima ls
R to oncoming vehicles
R to crossing traffic
R when cornering 58
Drivi
ngsafety systemsSafety

The
distance warningfunctionmay notgive
warnings inall critic alsituations. Thereisa
risk ofan accident .
Always paycareful attentiontothe traff ic
situation andbeready tobrake.
Always adaptyourspeed tosuit theprevail-
ing road andtrafficcondit ions. G
WARNIN
G
The distance warningfunctioncann ot
alway sclearly identify objectsand complex
traff icsituations.
In such cases, thedistance warningfunction
may:
R give anunnec essary warning
R not give awarning
There isar isk ofan accident .
Always paycareful attentiontothe traff ic
situation anddonot rely solely onthe dis-
tanc ewarning function.
Function Start ingatas peed ofapproximately 4mph
(7 km/ h),the distance warningfunctionwarns
you ifyou rapidly approach avehicle infront .
An inter mittentwarning tonew illthen sound,
and the00BA distance warninglampwilllight
up inthe instr ument cluster.
X Brake immediately inorder toincrease the
distance fromthevehicle infront .
or X Take evasive action,provided itis safe todo
so.
Due tothe nature ofthe system, particularly
complicated butnon- critic aldriving conditions
may alsocause thesystem todisplay awarn-
ing.
With thehelp ofthe radar sensor system, the
distance warningfunctioncan detect obsta-
cles thatareinthe path ofyour vehicle foran
exten dedperiod oftime.
Up toas peed ofapproximately 44mph
(70 km/ h),the distance warningfunctioncan
also react tostation aryobstacles, suchas
stopped orparked vehicles. Autonomous
brakingfunction If
the driver doesnotreact tothe distance
warning signalinac ritic alsituation, Active
Brake Assist canassist withtheautonomous
braking function.
If the autonomous brakingfunctionrequires a
particularly highbraking force,prevent ative
passenger protectionmeasures (PRE-SAFE®
)
are activated simultaneously.
Vehicles withoutActiveDistance Assist
DISTRONIC: theautonomous brakingfunction
is availab lein the following speedranges:
R 4-6 5mph(7-105 km/ h)for moving
objects
R 4-3 1mph(7-50k m/h )for stationa ry
objects
Vehic leswith Active Distance Assist
DI STRONIC: theautonomous brakingfunction
is ava ilable inthe followi ngspee dranges :
R 4-1 24mph (7-200 km/h )for moving
objects
R 4-3 1mph(7-50k m/h )for stationa ry
objects
Due tothe nature ofthe system ,parti cula rly
compli catedbutnon-critical drivingconditio ns
may alsoc aus ethe autonomous brakingfunc-
tion tointervene.
If the autonomous brakingfunction requiresa
parti cularlyhigh braki ngforce, preventa tive
pas senger protection measures(PRE-SAFE ®
)
are activa tedsimu ltaneo usly(Ypag e53).
Adaptive BrakeAssist Gene
ralinfo rmation
i Observ
ethe "Imp ortant safetynotes" sec-
tion (Ypag e57).
With thehelp ofAdapti veBrake Assist, thedis-
tance warning signalcan detect obstaclesthat
are inthe path ofyou rvehicl efor an extended
peri odoftime.
If Adapti veBrake Assist detects arisk ofcolli -
sion with thevehicl einf ront, itcalcu latesthe
braki ngforce necessa ryto avoi dac ollision. If
you applythe brakes forcefully,A dapti ve
Brake Assist willautomatica llyincreas ethe
braki ngforce toaleve lsuitabl efor the traffic
conditio ns.
Adapti veBrake Assist providesbraki ngassi s-
tance inhaza rdoussitua tions atspee dsabo ve Driv
ingsafety systems
59Safety Z

the
vehicleo nthe desired course withi np hysi-
cal limi ts. ESP ®
as sists the driver when pulling
aw ay on wetorslipper yroads.E SP ®
can also
sta bilize the vehicled uringb raking .
ETS (Electro nicT rac tionS ystem) i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Ypa ge 57).
ETS tractio ncontro lisp arto fESP ®
.
ETS brakes thedrive wheelsind ividu ally ifthe y
sp in. Thisenables yout op ulla wa ya nd acc el-
era teon slip pe ry surfa ces ,for exa mpl eifthe
roa dsurface isslip pe ry on one side .Ina ddi-
tio n,mor edrive torq ueistra nsfe rredtothe
wh eelo rw heelsw itht ractio n.
ETS remains acti vewhen youd eacti vate ESP ®
.
Impo rtant safety notes G
WA
RNING
If ESP ®
is ma lfunctio ningitwi llnot provide
any vehicles tabilizati on. Thereisan
incr easedr isko fskidd ing orofan acc ident.
Exerc isec autio nw henc onti nuing todrive.
Hav eESP®
che cked ataq ualifi ed speci alist
wo rksh op.
Wh entow ingthe vehiclew itht he rea raxle
ra ised ,observe the note sonE SP®
(Y page 265 ).
If the 00BB ESP®
OFF warning lamp lights up
conti nuously,t he nE SP®
is de acti vated .
If the 00E5 ESP®
wa rning lamp and the00BB
ESP ®
OFF warning lamp arel itconti nuously,
ESP ®
is not availabl ed uetoam alfu nctio n.
Ob serve the inform ation on warning lamps
(Y page 212 )and disp laym essage sw hich
ma ybeshown inthe instrument cluste r
(Y page 184 ).
i Onl
yusewheelswith the reco mme nded
tire sizes .Onlyt henw illE SP ®
functio nprop-
erl y. Ch
arac teristics ofESP® Ge
neral info rmatio n
If the 00E5 ESP®
wa rning lamp goes out
be for eb eginning thejourney ,ESP ®
is au to-
ma tica llya ctive.
If ESP ®
inte rvenes ,the 00E5 ESP®
wa rning
la mp flashe sint he instrument cluste r.
If ESP ®
inte rvenes :
X Do not deacti vate ESP ®
und erany circum -
sta nces .
X Onl ydepress the accelera tor pedalasf ar as
nece ssarywh en pulling away.
X Ada ptyour drivin gs tyle to suitthe prevailing
roa dand weath ercond itions .
EC Os tart/ stopfuncti on
The ECO start/sto pfunctio nswitch esthe
eng ineoffautoma ticallyw hent he veh icle
stop smoving .The engin estarts automa tically
wh en the driver wants topullaw ay again.
ESP ®
rem ains inits pre viouslyse lected status ,
e.g .ifE SP ®
wa sd eacti vated befor ethe eng ine
wa sa utoma ticallys witch edoff.
De activ atin g/activ atin gESP®
(e xc ept
Me rce des -AMG SLC4 3) Impo
rtant safety notes
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Ypa ge 57) .
Yo uc an select betwe enthe followi ng states of
ESP ®
:
R ESP ®
is acti vated
R ESP ®
is de acti vated G
WA
RNING
If yo ud eacti vate ESP ®
,E SP ®
no longe rsta-
bi lizes thevehicle. There isan incr easedr isk
of ski dding and anacc ident.
Onl ydeacti vate ESP ®
in the situa tions
de scri bedint he followi ng.
It ma ybeb esttod eacti vate ESP ®
in the fol-
lo wi ng situa tions:
R wh en using snowchains
R in de ep sno w
R on sand orgra vel Dr
ivi ng safet ys ystems
61Safet y Z

G
WARNING
After ashort time, hillstart assistwil lnol on-
ger brake yourvehicl eand itcoul droll awa y.
There isar isk ofan accide ntand injury .
There fore,quickly move yourfoot from the
brake pedaltot he accele ratorpedal.Never
lea vethe vehicl ewhen itis held byhillstart
assi st.
Hill start assistisnot active if:
R you arepulling awayonal evelroad oron a
dow nhill gradient
R the transmissi onisin posi tion 005C
R the electric parkingbrake isapp lied
R ESP ®
is malfu nctioning EC
Os tart/stop function
Introduc tion The
ECO start/stop functionswitches the
engine offautomatical lyifthe vehicl eiss top-
ped under certain conditions.
The engine startsautomatica llywhen the
drive rwants topul lawa ya gain. The ECO
start/stop functiontherebyhelpsyou to
redu cethe fuel consumpti onand emiss ionsof
you rvehicl e.
Important safetynotes G
WARNING
If the engine isswi tched offautomatica lly
and youexit thevehicl e,the engine is
restarted automatical ly.T he vehicl emay
begi nmoving. Thereisar isk ofaccide ntand
injury .
If you wishtoe xitthe vehicl e,alw ayst urn
off the ignitio nand secure thevehicl e
aga inst rolling awa y. Gene
ralnote s 0043
ECO start/stop display
The ECO start/stop functionisactiva ted
whene veryou switch onthe engine using the
SmartKey orthe Start/Stop button.
If the engine hasbeen switched offautomati-
call ybythe ECO start/stop function,the00D6
ECO symb olisshow nint he multi function dis-
pla y.
Automatic engineswitch-off If
the vehicl eisb raked toas tandstil lwith the
transmissi onin005B or005C,t heECO start/stop
function switches offthe engine automatical ly.
The ECO start/stop functionisopera tional
when:
R the indica torlamp inthe ECO button islit
green
R the outsi detempera tureiswithi nthe range
that issui table forthe system
R the engine isat normal operatingtempera -
ture
R the settempera tureforthe vehicl einterior
has been reache d
R the battery issuffi ciently charged
R the system detects thatthewinds hieldis
not fogged upwhen theair-condi tioningsys-
tem isswi tched on
R the hood isclosed
R the drive r'sdoor isclosed andthedrive r's
seat beltisf astened
All ofthe vehicl e'ssystems remainactive
when theengine isstoppe dautomatical ly.
Automatic engineswitch-off cantake placea
maximu moffour times inar ow (initi alstop,
then three subsequ entstops).
The HOLD function canbeactiva tedifthe
engine hasbeen switched offautomatical ly.I t
is then notnecessa ryto continue applying the
brakes duringthe automatic stopphase.When
you depre ssthe accele ratorpedal,the engine Drivi
ng
121Drivi ngand parking Z

The
ECO display consistsofthree 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
unnecessary accelerationand
deceleration
R the outer areaempties andthe
inner areaisgray: fluctuations in
speed The
three innerareas display thecurrent driv-
ing style andlight upgreen asaresult ofap ar-
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 factorsarenot included inthe ECO dis-
play.
An econom icaldriving stylespecially requires
driving atmoderate enginespeeds.
Achievin gahigher value inthe 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 atac onst 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 172).
Further informationonthe ECO display
(Y page 171). 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. Driving
tips
139Driving andparking Z

Downh
illgrad ient s !
On
long,steep gradie nts, you mus tred uce
th el oad ontheb rake s.To use engin eb rak-
in g, shi ftto alowe rgear ingoo dtime. Thi s
hel psyou toavo idoverh eatingt he bra kes
and wear ingt hemo utexce ssi vel y.
Whe nmakingu seofthee ngineb raking
ef fect ,iti sp ossib lethat ad rive whee lmay
no tturnf or som etime,e.g. inthec aseo f
sudd enlych ang ingo rslipper yroads urfac e
co nd ition s.Thi scouldcau sedam agetothe
dri ve train .Thist ypeo fdam age isno tc ov-
ere dbythe Mer cedes -Ben zw arrant y.
Chan geinto alowe rgear ingoo dtimeo nlon g
and steep down hillgradie nts. Thi sise spec ially
imp ortant ifth ev ehicle islade n.
Thi salso appli esifyou haveactivat edcruise
co ntro lo rA ctiveD istan ceAssis tD ISTR ON IC.
Hea vyandligh tloa ds G
WAR
NING
If you restyour foot on theb rake peda l
whil edrivin g,theb raking sys temc anover-
heat .Thisi nc rea sest he stopp ingd ista nc e
and canevencause theb raking sys temt o
fail .The re isar isko fana cciden t.
Nev eruse theb rake peda lasaf ootre st.
Nev erdepr esstheb rake peda land the
acc eler ator peda latthe sam etime.
! De
pre ssing theb rake peda lcon stan tly
res ultsine xces sive and premat ure wear to
th eb rake pads .
If th eb rake sh aveb eens ubj ectedt oa heav y
load ,don otstop thev ehicle imm ediately, but
dri ve on foras hortwhil e.Thi sallow sthe air-
flo wt ocoolthe bra kesm oreq uickly.
Wet road s If
you havedriven foral ongt imeinh eav yrain
wit hout braking ,the re may beadelayed reac-
ti on from theb rake sw hen braking fort he first
ti me. Thism ayalso occur afterthev ehicle has
bee nwash edordriven thro ugh deepwater.
You then hav etod epr ess theb rake peda l
mo refirmly. Main tain ag reater dis tanc ef rom
th ev ehicle in fron t.
Af terd rivin go naw etroad orhav ingt he veh i-
cl ew ash ed, brakefirmly whilepayin gattenti on to
thet raffic co nd ition s.Thi sw illwarm upthe
bra kediscs,the reby dryi ngthem morequic kly
and protectingt hema gain 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 ontheb rake discsand brake
pads .Thisc an res ult inas igni fic ant lylon ger
bra king distanc e.
R In order topre ven tany salt build -up,apply
th eb rake so ccasion ally whilepayin gatten-
ti on tothet raffic co nd ition s.
R Care fullydepr ess theb rake peda land the
beg inning and endo faj ourney.
R Main tain ag reater dis tanc et ot he veh icle
ahea d.
Ser vici ngtheb rake s !
The
brakeflui dlevel may betool ow, if:
R ifth er ed bra kewarn ingl amp lightsup in
th ei nstru ment clust erand
R you hear awarningt onew hilet he engin e
is run ning
Obs erveaddit ionalwarn ingm essag esinthe
mult ifunction display.
The brakeflui dlevel may betool ow due to
bra kepad wear orleak ingb rake lines.
Hav ethe bra kesys temc hecked imm edi-
at ely. Consult aqualif iedspecialis twork-
sho ptoa rrang ethis.
! As
theE SP®
sys temo perat es aut omati-
cal ly,thee nginea nd thei gn ition mus tbe
swit ched off( theS martKey mustbeinp osi-
ti on 0092 or0047 inthei gn ition lock),ift he
elec tric par king bra keistested on abraking
dyn amo meter(ma ximum 10sec onds).
Br ak ingt rigg ere dautom atically byESP®
may causesev ere dam agetotheb rake sys -
te m.
Al lc he cksa nd main tenan cewor konthe bra ke
sys temm ustb ec arrie do utataq ualif iedspe-
ci alis tworks hop .
Hav ebrake pads inst alled andbrakeflui d
rep laced ataq ualif iedspecialis tworks hop .
If th eb rake sys temh asonlybee nsubj ectto
mo der atel oad s,you should test thef unction -
alit yofyour brakesa treg ular inte rvals.
In fo rm ation onBAS(Brak eA ssist) (Y page 57). 140
Dri
ving tipsDri ving andp ark ing

Mercedes-Ben
zrecommen dsthat youonly
have brake pads/linings installedonyour vehi-
cle which havebeen approved forMercedes-
Benz vehicles orwhich correspond toan
equival entqual itystandard. Brakepads/
linings whichhavenotbeen approved for
Mercedes-Ben zvehicles orwhich arenot ofan
equival entqual itycould affect yourvehicle's
operating safety.
Mercedes-Ben zrecommen dsthat youonly use
brake fluidthathasbeen specially approved
for your vehicle byMercedes-Ben z,or which
corresponds toan equival entqual itystandard.
Brake fluidwhich hasnotbeen approved for
Mercedes-Ben zvehicles orwhich isnot ofan
equival entqual itycould affect yourvehicle's
operating safety.
High-perf ormance brakesystem
(exce ptMercedes-AMG SLC43) AMG
brake systems aredesigned forheavy
loads andhave componen tswith correspond-
ing properties. Thismay lead tonoise when
braking. Thiswilldepend on:
R Speed
R Braking force
R Ambient condition s,e.g. temperature and
humidity
The wear ofindividual componen tsof the
brake system, suchasthe brake pads/linings
or brake discs, depends onthe individual driv-
ing style andoperating conditions.
For this reason, itis impossible tostate amile-
age that willbevalid under allcircumstan ces.
An aggressive drivingstylewilllead tohigh
wear. Youcanobtain moreinformation onthis
from aqualified specialist workshop.
New andreplaced brakepadsanddiscs only
reach theiroptimum brakingeffectaftersev-
eral hundred kilometers ofdriving. Compen-
sate forthis byapply inggreater forcetothe
brake pedal. Keepthisinmind, andadapt your
driving andbraking accordingly duringthis
break-in period.
Exc essive heavybraking resultsincorrespond-
ingly highbrake wear.Observe thebrake sys-
tem warning lampinthe instrumen tcluster
and note anybrake status messages inthe
multifunction display.Especially forhigh per-
formance driving,itis important tomaintain
and have thebrake system checkedregularly . Driving
onwet roads
Hydr oplaning If
water hasaccumulated toac ertain depthon
the road surface, thereisad anger ofhydro-
planing occurring.
For this reason, inthe event ofheavy rainorin
condition sinw hich hydropla ningmayoccur,
you must driveinthe following manner:
R lower yourspeed
R avoid ruts
R avoid sudden steering movement s
R brake carefully
Driving onflooded roads !
Do
not drive through floodedareas.Check
the depth ofany water before driving
through it.Drive slowly through standing
water. Otherwise, watercouldenterthe
vehicle interior orengine compartmen t.It
can then damage theengine's orautomatic
transmission' selectronic componen ts.It
can also besucked inby the engine's air
intake connection andcause engine dam-
age. Winter
driving G
WARNING
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 andaccidents.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface. G
DANGER
If the exhaust pipeisblocked oradequ ate
ventilation isnot possible, poisonous gases
such ascarbon monoxide (CO)mayenter
the vehicle. Thisisthe case, e.g.ifthe vehi-
cle becomes trappedinsnow. Thereisar isk
of fatal injury.
If you leave theengine orthe auxilia ryheat-
ing running, makesuretheexhaust pipeand
area around thevehicle areclear ofsnow. Driving
tips
141Driving andparking
Z