2019 MERCEDES-BENZ CLA COUPE brakes

Aut
oma tictrans mission emer-
gency mode.......................................1 39 B
Back button ....................................... 232
Backup lamp
Displ aymessa ge....... ..................... 205
BAS (Brake AssistSyste m)....... ..........61
Battery (SmartKe y)
Che cking .......................................... 73
Importa ntsafe tynotes .................... 73
Rep lacing ......................................... 73
Battery (vehicle)
Cha rging ........................................ 281
Displ aymessa ge....... ..................... 208
Importa ntsafe tynotes .................. 279
Ju mp starting ................................. 282
Rep lacing .......................................281
Belt
see Seat belts
Belt warni ng....... .................................. 44
Blin dSpot Assist
Activating/d eactivating (on-
boa rdcompu ter)....... ..................... 188
Displ aymessa ge....... ..................... 210
Notes/fu nction..............................174
Blueto oth®
Searchi ngfor amobi lephone ........235
Searchi ngfor amobi lephone
(de vice mana ger)........................... 236
see also Digita lOpera tor'sMan-
ua l....... ..................... ......................231
Tel epho ny....... ...............................235
Brake AssistSyste m
see BAS (Brake AssistSystem)
Brake fluid
Displ aymessa ge....... ..................... 199
Notes .............................................322
Brake forcedistributi on
see EBD (electronic brakeforce
dis tribu tion)
Brake lamp
Rep lacing bulbs....... ......................107
Brake lamps
Displ aymessa ge....... ..................... 204
Brakes
ABS ..................... .............................61 BAS
<0011001100110011001100110011001100110011001100110011001100110011
001100110011[ <0011001100110011001100110011001100110011001100110011001100110011
001100110011[............61
Brake fluid(note s)<0011001100110011001100110011001100110011001100110011001100110011
001100110011[ ......322
Braki ngassis tance appro priate to
the situation <0011001100110011001100110011001100110011001100110011001100110011
001100110011[ <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 63
Disp laymess age<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011[ 194
EBD <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011[ 67
Hil lsta rtas sis t<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 126
HOLD function<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011[ 158
Imp orta ntsafety notes <0011001100110011001100110011001100110011001100110011001100110011
00110011[ 147
Ma inte nance <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 148
Pa rking brake<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 143
Ri ding tips<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011> 147
Wa rning lamp <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 221
Brakin gass istanc eappropri ateto
the situatio n
Functi on/note s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 63
Breakd ownass istanc e
Whe rewillIfind ...?<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011[ 273
see Flattire
see Tow-star ting
see Towingaway
Brig htne sscontro l(i nstru ment
cl uste rlighti ng)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 33
Button son the steering wheel......... 179 C
Cal iforni a
Imp orta ntnotice forreta ilcus -
tome rsand lesse es<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 25
Cal ling up amalfu nctio n
see Disp laymes sages
Car
see Vehicle
Care
Carwa sh <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 265
Ca rpe ts<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 272
Disp lay<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 270
Exha ustpi pe <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 270
Exteri orlights <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 269
Ge aror sel ector lever <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011[ 271
Interi or<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> 270
Ma tte finish<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 267
Note s<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 265
Pa int <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 267
Pl as tic trim <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 270
Pow erwa she r<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011[ 266
Re ar vie wcam era<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011[ 2696
In
dex

The
following textisreproduced asrequired of
all manufact urersunder Title49,Code ofU.S.
Federal Regulations,Part575pursuant tothe
National TrafficandMotor Vehicle SafetyActof
1966 .
If you believe thatyour vehicle hasadefect
which couldcause acrash orcould cause injury
or death, youshould immediately informthe
National Highway TrafficSafety Administ ration
(NHTSA )in addition tonot ifying Mercedes- Benz
USA ,LLC.
If NHTSA receives similarcomplaints ,it may
open aninvest igation, andifit finds thatasafety
defect existsinagroup ofvehicles, itmay order
a recall andremedy campaign. However,NHTSA
cann otbecome involved inindividual problems
between you,your dealer, orMercedes- Benz
USA ,LLC.
To cont actNHTSA ,you may calltheVehicle
Safety Hotlinetoll-fr eeat1-8 88-327- 4236
(TTY: 1-800-424- 9153 );go tohtt p://
www .safer car.gov; orwrite to:Administ rator,
NHTSA ,400 Sevent hStr eet, SW., Washington ,
DC 2059 0.
You canalso obtain otherinformat ionabout
motor vehicle safetyfrom
htt <0053001D00120012005A005A005A001100560044004900480055004600440055
0011> gov Limited
Warrant y
! Observe
thenotes inthis Operator's Manual
regarding thecorrec toperation ofyour vehi-
cle and possible damagetothe vehicle. Dam-
age tothe vehicle whichiscaused byviolation
of these notes isnot covered bythe
Mercedes-B enzimplied warranty orthe new
or used-vehicle warranty. QR
code forrescue card
The QRcodes aresecured inthe fuel filler flap
and onthe opposite sideonthe B-pillar. Inthe
event ofan accident ,rescue services canuse
the QRcode toquickly findtheappropriate res-
cue card foryour vehicle. Thecurrent rescue
card contains themost important information
about yourvehicle inacompact form,e.g.the
routing ofthe electric cables.
You canfind more informat ionunder
www.mercedes-ben z.de/qr-code. Data
storage Data
storage
A wide range ofelectron iccomponen tsinyour
vehicle containdata memories.
These datamemories temporarily orperma-
nent lystore technicalinformat ionabout:
R the vehicle's operating state
R incident s
R malfunction s
In general, thistechn icalinformat iondocu-
ment sthe state ofacomponen t,amodule, a
system orthe surroundings.
These include, forexample:
R operating conditionsofsystem componen ts.
For example, fluidlevels
R the vehicle's statusmessages andthose ofits
individual componen ts,e.g. number ofwheel
revolutions/ speed,deceleration inmove-
ment ,lateral acceleration, acceleratorpedal
position
R malfunction sand defects inimportant system
componen ts,e.g. lights, brakes
R vehicle reaction sand operating conditionsin
special drivingsituations, e.g.airbag deploy-
ment ,interv ention ofstability controlsys-
tems
R ambient conditions,e.g.outside temperature
This data isof an exclusively technicalnature
and canbeused to:
R assist inrecogniz ingand rectifying malfunc-
tions anddefects
R analyze vehiclefunctions, e.g.after anacci-
dent
R optimize vehiclefunctions
The data cannot beused totrace thevehicle's
movement s.
When yourvehicle isserviced, technicalinfor-
mation canberead from theevent datamemory
and malfunction datamemory.
Services include,forexample:
R repair services
R service processes
R warranties
R quali tyassurance
The vehicle isread outbyemployees ofthe ser-
vice network (including themanufacturer) using
special diagnostic testers. More detailed infor-
mation isobtained fromit,ifrequired. Data
storage
29Introdu ction Z

The
distance warningfunctionmay notgive
warnings inall critic alsituations. Thereisa
risk ofan accident .
Always paycareful attentiontothe traff icsit-
uation andbeready tobrake.
Always adaptyourspeed tosuit theprevailing
road andtrafficcondit ions. G
WARNIN
G
The distance warningfunctioncann otalway s
clearly identify objectsand complex traffic
situations.
In such cases, thedistance warningfunction
may:
R give anunnec essary warning
R not give awarning
There isarisk ofan accident .
Always paycareful attentiontothe traff icsit-
uation anddonot rely solely onthe distance
warning function.
Function Start ingataspeed ofapproximately 4mph
(7 km/ h),the distance warningfunctionwarns
you ifyou rapidly approach avehicle infront .An
inter mittentwarning tonewill then sound, and
the 00BA distance warninglampwilllight upin
the 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 awarning.
With thehelp ofthe radar sensor system, the
distance warningfunctioncan detect obstacles
that areinthe path ofyour vehicle foranexten -
ded period oftime.
Up toaspeed ofapproximately 44mph
(70 km/ h),the distance warningfunctioncan
also react tostation aryobstacles, suchasstop-
ped orparked vehicles. Autonomous
brakingfunction If
the driver doesnotreact tothe distance warn-
ing signal inacritic alsituation, Active Brake
Assist canassist thedriver withtheautonomous
braking function.
The autonomous brakingfunction:
R gives thedriver moretimetoreact tocritic al
driving situations
R can help thedriver toavoid anaccident or
R can reduce theeffect sof an accident
Vehicles withoutActiveDistance Assist
DISTRONIC: theautonomous brakingfunction
is availab lein the following speedranges:
R 4-65 mph (7-105 km/ h)for moving objects
R 4-31 mph (7-50 km/h )for stationa ry
objects
Vehic leswith Active Distance Assist
DI STRONIC: theautonomous brakingfunction
is ava ilable inthe followi ngspee dranges :
R 4-124 mph (7-200 km/h )for moving
objects
R 4-31 mph (7-50 km/h )for stationa ry
objects
Due tothe nature ofthe system ,parti cularly
compli catedbutnon-critical drivingconditio ns
may alsocaus ethe autonomous brakingfunc-
tion tointervene.
Situation -depende ntbraking assis-
tance Gene
ralinfo rmation
i Observ
ethe "Imp ortant safetynotes" sec-
tion (Ypag e61) .
With thehelp ofthe rada rsensor system,Active
Brake Assist candetect obstaclesthatareinthe
path ofyou rvehicl efor anextended periodof
time.
If Active BrakeAssist detects arisk ofcolli sion
with thevehicl ein front, itcalcu latesthe brake
press urenecessa ryto avoi dacolli sion. Ifyou
app lythe brakes forcefully,situa tion-depe ndent
braki ngassi stance adapts tothe situa tionand
au tomatica llyincreas esthe brake pressuretoa
degre eapp ropri atetothe traffic situation.
Situa tion-depe ndentbrakingassi stance pro-
vide sbraki ngassi stance inhaza rdoussitua tions
at spee dsabo ve4mph (7km/h) .It use srada r
sensor technolog yto asse ssthe traffic situa-
tion. Driv
ingsafety systems
63Safety Z

Situ
ation-de pendentbraking assis tance iscap a-
bl e of rea cting tomovi ngobje ctsthat have
al rea dybee ndete cted assuch atleas tonce
ove rthe period of obs erva tion, uptoveh icle
spe eds ofaro und 155 mph (250 km/h ).
Situ ation-de pendentbraking assis tance can
al so dete ctstati onaryobje cts,uptoveh icle
spe eds ofaro und 44mph (70km/h ).
X Kee pthe brakeped aldep ress edunti lthe
eme rgency braking situation isove r.
ABS prevents thewheel sfrom locking.
The brakes willwo rknorma lly ag ain if:
R yourel ease the brakeped al
R there isno longer anydanger ofacol lisio n
R no obs tacl eis dete cted infront ofyour veh icle
Situ ation-de pendentbraking assis tance isthen
dea ctiva ted.
Impo rtant safetynotes
i Obs
erve the"Important safety notes "sec-
tion fordriving safety systems (Ypage 61). G
WARNI
NG
Active BrakeAssistdoe snot react:
R to per sons ,bi cycl es,motor cyclesorani -
mal s
R to appro ach ing vehicles
R to cross traffic
R on bend s
As ares ult, Active BrakeAssistcanno tinter -
vene inallcriti calsitu ations. Thereisaris kof
an acci dent.
Alw ayspa ycare fulattenti ontothe traff icsit-
ua tion andbepre pared tobra ke. G
WARNI
NG
Ada ptiveBrake Assistcanno tal wa yscle arly
id entif yobje ctsand comp lextraff icsitu a-
tions .
In such cas es, Ada ptiveBrake Assistmig ht:
R inter vene unnecessarily
R not inter vene
The reisaris kof an acci dent.
Alw ayspa ycare fulattenti ontothe traff icsit-
ua tion andberea dytobra ke. Termina tethe
inter venti oninanon-cri ticaldri ving situation. Due
tothe natu reofthe system, complexbu t
non-cri ticaldri ving condi tions mayalso cau se
Active BrakeAssistto inter vene .
Even ifActive BrakeAssistisnot availab ledu eto
a mal functi oninthe radarsens orsystem, the
bra kesystem isstil lava ilab lewith fullbra ke
boo sting effectand BAS. ES
P®
(E lectro nicStabi lity Prog ram)
Gen eral notes i
Obs
erve the"Important safety notes "sec-
tion (Ypage 61).
ESP ®
moni torsdriving stability and tracti on,i.e.
pow ertrans missionbetw eenthetiresand the
roa dsu rfa ce.
If ESP ®
dete ctsthat thevehicleis dev iating from
the directi ondes iredby the driver, one ormore
wh eel sare braked tostab ilize the vehicle. The
engi neoutpu tis also mod ified tokeep thevehi-
cle onthe desiredcou rse within physica llimits .
ESP ®
as sis tsthe driver when pulling away on
we tor slippe ryroa ds. ESP ®
can also stab ilize
the vehicledu ring braking.
ETS /4ETS (Electro nicTracti onSys tem) i
Obs
erve the"Important safety notes "sec-
tion (Ypage 61).
ETS tracti oncontrol ispa rtof ESP ®
.On veh icles
wi th 4MATI C,4ETS ispa rtof ESP ®
.
Tra ction control brakes thedrive wheel sind i-
vid ually if they spin.Thi sena bles youto pull
aw ay and acce lerate onslippe rysurfa ces, for
exa mpl eif the roadsu rfa ce isslippe ryon one
sid e.In addition, more drive torqu eis trans fer-
red tothe wheel orwh eel swi th tracti on.
Tra ction control remainsacti ve,evenif yo u
dea ctiva teESP ®
.
Impo rtant safetynotes i
Obs
erve the"Important safety notes "sec-
tion (Ypage 61). G
WARNI
NG
If ESP ®
is mal functi oning,ESP ®
is una ble to
stab ilize the vehicle. Addi tiona lly, fur ther driv-
ing safety systems aredeactiva ted.This
incre ases the riskof skid ding and anacci dent. 64
Dri
vin gsafe tysys temsSafe ty

The
engine startsautomatically whenthedriver
wants topull away again. TheECO start/stop
funct ionthereby helpsyoutoreduce thefuel
consumpt ionand emissions ofyour vehicle.
Import antsafety notes G
WARNIN
G
If the engine isswitched offautomatically and
you exit thevehicle, theengine isrestart ed
automatically. Thevehicle maybegin moving.
There isarisk ofaccident andinjury.
If you wish toexit thevehicle, alwaysturn off
the ignition andsecure thevehicle against
rolling away.
General notes 0043
ECO start/stopdisplay
The ECO start/stopfunct ionisactivated when-
ever youstart theengine usingtheSmart Keyor
the Start /Stopbutton .
If the engine hasbeen switched offautomati-
cally bythe ECO start/stopfunct ion,the00D6
ECO symbol isshown inthe multifunct iondis-
play.
Mercedes-AMG vehicles:theECO start/stop
funct ionisonly availabl ein drive program C.
Automa ticengine switch-off If
the vehicle isbraked toastandst illin Dor N,
the ECO start/stopfunct ionswitches offthe
engine automatically.
The ECO start/stopfunct ionisoperational
when:
R the indicator lampinthe ECO button islit
green
R the outside temperat ureiswithin therange
that issuitable forthe system
R the engine isat normal operating temperature
R the settemperat ureforthe vehicle interior
has been reached R
the battery issufficient lycharged
R the system detectsthat thewindshield isnot
fogged upwhen theair-con ditioning systemis
switched on
R the hood isclosed
R the driver's doorisclosed andthedriver's
seat beltisfasten ed
All ofthe vehicle's systemsremainactivewhen
the engine isstopped automatically.
The HOLD functioncan also beactivated ifthe
engine hasbeen switched offautomatically. Itis
then notnecessary tocont inue applyi ngthe
brakes duringtheautomatic stopphase. When
you depress theaccelerator pedal,theengine
start sautomatically andthebraking effectof
the HOLD functionisdeactivated.
Automat icengine switch-offcan take place a
maximum offour times inarow (initial stop,then
three subsequent stops).
Automa ticengine start The
engine startsautomatically if:
R you switch offthe ECO start/stopfunct ionby
pressing theECO button
R in trans mission position 005Bor005C, thebrake
pedal isreleased andtheHOLD functionisnot
active
R you depress theaccelerator pedal
R you engage reverse gear005E
R you move thetrans mission outofposition 005D
R you unfasten yourseatbeltoropen thedriv-
er's door
R the vehicle startsto roll
R the brake system requires this
R the temperat ureinthe vehicle interiordevi-
ates from thesetrange
R the system detectsmoisture onthe wind-
shield whentheair-con ditioning systemis
switched on
R the battery's conditionofcharge istoo low
Shift ingthe trans mission toposition Pdoes not
start theengine. Driving
127Drivingandparking Z

Trans
mission pos ition s 0045 Park
position
Thi spre vents thevehiclefro mrol ling
aw ay when stop ped.
Onl yshi ftthe transmi ssion toposi-
tio n005D when the vehicleis sta tion-
ar y. The parkin glock sho uld not be
us ed asabra kewhen parkin g.
Alw aysap plythe electro nicparkin g
bra keinad ditio nto the parkin glock
in ord erto sec urethe vehicle.
In the eventofama lfunctio nof the
veh icle's electro nics,the transmi s-
si on maylo ck inpo sitio n005D. Have
the vehicleelectro nicschecked
imm ediatel yat aqu alifi ed speci alist
wo rksh op.
Pa rk positio n005D isau toma tically
eng aged if:
R yousw itch offthe engineusing the
Sma rtKeyand remove theSma rt-
Key
R yousw itch offthe engineusing the
Sma rtKeyor using the Star t/Stop
bu tton andopen the driver 'sdo or
or fro nt-pa ssenge rdo or
R youop en the driver 'sdo or wh en
the vehicleis sta tionar yor wh en
dri vin gat aver ylo w sp ee dand the
tra nsmi ssion isin po sitio n005B or
005E 0046 Rev
ersege ar
Onl yshi ftthe transmi ssion into posi-
tio n005E when the vehicleis sta tion-
ar y. 0044 Neu
tral
Do not shiftthe transmi ssion to005C
wh ile dri vin g.The automa tictrans-
mis sion cou ldothe rwise be dam-
ag ed .
No powe ris tra nsmi ttedfromthe
eng inetothe drive wheels.
Re leas ing the brakes willal lo w yo uto
mov ethe vehiclefre ely, e.g .to push
it or tow it.
If ESP ®
is de acti vated orfaulty: shift
the transmi ssion topo sitio n005C ifthe
veh icleis in da nge rof ski dding ,e.g .
on icy roads.
If yo usw itch theengineoffwith the
tra nsmi ssion inpo sitio n005E or005B,
the automa tictransmi ssion shifts to
005C automa tically.
! Co
asting inneu tral005C may
cau sedama getothe drive train. 003A Dri
ve
The automa tictransmi ssion cha nge s
ge ar automa tically. All forwa rdgears
ar eav ailabl e. Dri
ving tips
Ch ang ingge ar The
automa tictransmi ssion shifts thro ughthe
ind ividu alge arsau toma tically wh enitis in tra ns-
mis sion positio n005B. Thisau toma ticgear shi ft-
ing behavio ris de term inedby :
R the selecte ddri ve pro gram
R the positio nof the accelera tor pedal
R the roadsp ee d
Ac celerator pedalpos ition Yo
ur sty leof dri vin ginfl uences howtheauto-
ma tic transmi ssion shifts gear:
R little thro ttle:ea rly upshi fts
R mor ethro ttle:la te upshi fts 13
4 Au
tomati ctrans missionDr ivi ng andparki ng

The
ECO display consistsof three section s,with
an inner andouter area.Thesection scorre-
spond tothe following threecategories: 0043
Acce
leration (evaluation ofthe
acceleration processes):
R the outer areafillsupand theinner
area lights upgreen: moderate
acceleration ,especially athigher
speeds
R the outer areaempties andthe
inner areaisgray: sporty acceler-
ation 0044
Coasting
(evaluation ofall decelera-
tion processes):
R the outer areafillsupand theinner
area lights upgreen: anticipator y
driving, keeping yourdistance and
early release ofthe accelerator.
The vehicle cancoast without use
of the brakes.
R the outer areaempties andthe
inner areaisgray: frequent heavy
braking 0087
Constant
(continuous evaluation
over theentir ejourney):
R the outer areafillsupand theinner
area lights upgreen: constant
speed andavoidance ofunneces -
sary acceleration anddeceleration
R the outer areaempties andthe
inner areaisgray: fluctuations in
speed The
three innerareas display thecurrent driving
style andlight upgreen asaresult ofaparticu-
larly econom icaldriving style.Dependin gon the
driving situation, uptotwo areas maylight up
simultaneously.
At the beginning ofthe journey, thethree outer
areas areempty andfillup asaresult ofeco-
nomical driving.Ahigher levelindicates amore
econom icaldriving style.Ifthe three outer areas
are completely filledatthe same time,thedriver
has adopted themost econom icaldriving style
for the selected settings andprevailing condi-
tions. TheECO display borderlightsup.
The ECO display doesnotindicate theactual fuel
consumpt ion.Theadditionally achievedrange
display edunder Bonus fr.Start Bonus
fr.Start doesnot
indicate afixed consumpt ionreduction . In
addition todriving style,theactual consump-
tion isaffect edbyother factors,such as:
R Load
R Tire pressure
R Cold start
R Choice ofroute
R Act ive 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
(vehicles withaDYNA MICSELECT button ).
On long journeys ataconst antspeed, e.g.onthe
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. Onlon-
ger journeys, therearefewer changes. Formore
marked changes, performamanual rest
(Y page 183).
For more inform ationonthe ECO display ,see
(Y page 182). Br
aking
Import antsafety notes G
WARNIN
G
If you shift down onaslippery roadsurface in
an attempt toincrease theengine's braking
effect ,the drive wheels couldlosetheir grip.
There isan increased dangerofskidding and
accident s.
Do not shift down foradditional enginebrak-
ing onaslippery roadsurface.
Dow nhill gradients !
On
long andsteep gradients, youmust
reduce theload onthe brakes byshiftin gto a
lower gearingood time. Thisallows youto
take advantage ofengine braking. Forthis you
must firstactivate manualgearshifting .This Driving
tips
147Driving andparking Z

helps
youtoavoid overheating thebrakes and
wearing themoutexcessively.
When youtake advantage ofengine braking, it
is possible thatadrive wheel willnotrotate for
some time,e.g.onaslippery roadsurface.
This could cause damage tothe drive train.
This type ofdamage isnot covered bythe
Mercedes-Ben zwarranty.
Briefly depressing theaccelerator pedalon
downhill gradients whilethemanual drivepro-
gram Mistemporarily activated:theautomatic
transmission mayswitch tothe last active auto-
matic driveprogram Eor S.The automatic trans-
mission mayshift toahigher gear.Thiscan
reduce theengine's brakingeffect.
Heavy andlight loads G
WARNING
If you rest your footonthe brake pedalwhile
driving, thebraking systemcanoverheat. This
increases thestopping distanceandcaneven
cause thebraking systemtofail. There isa
risk ofan accident.
Never usethebrake pedalasafootrest .Never
depress thebrake pedalandtheaccelerator
pedal atthe same time.
! Depressing
thebrake pedalconstantly
results inexcessive andpremature wearto
the brake pads.
If the brakes havebeen subjected toaheavy
load, donot stop thevehicle immediately. Drive
on for ashort while. Thisallow sthe airflow to
cool thebrakes morequickly.
Wet roads If
you have driven foralong time inheavy rain
without braking, theremaybeadelay edreac-
tion from thebrakes whenbraking forthe first
time. Thismay alsooccur afterthevehicle has
been washed ordriven through deepwater.
You have todepress thebrake pedalmore
firmly. Maintain agreater distance fromthe
vehicle infront .
Aft erdriving onawet road orhaving thevehicle
washed, brakefirmlywhilepayingattent ionto
the traffic conditions .This willwarm upthe
brake discs, thereby dryingthemmore quickly
and protect ingthem against corrosion. Limited
braking performanceonsalt-
treat edroads If
you drive onsalted roads, alaye rof salt resi-
due may form onthe brake discsandbrake
pads. Thiscanresult inasignificantly longer
braking distance.
R Inorder toprevent anysalt build -up,apply the
brakes occasionally whilepayingattent ionto
the traffic conditions .
R Carefull ydepress thebrake pedalandthe
beginning andend ofajourney.
R Maintain agreater distance tothe vehicle
ahead.
Servicing thebrakes !
The
brake fluidlevel maybetoo low, if:
R ifthe red brake warning lamplights upin
the instrumen tcluster and
R you hear awarning tonewhile theengine is
running
Observe additional warningmessages inthe
multifunction display.
The brake fluidlevel maybetoo low due to
brake padwear orleaking brakelines.
Have thebrake system checkedimmediately.
Consult aqual ified specialist workshop to
arrange this.
! A
funct ionorperformance testshould only
be carried outona2-axle dynamometer. If
you wish tooperate thevehicle onsuch a
dynamometer, pleaseconsult aqual ified spe-
cialist workshop inadvance. Youcould oth-
erwise damage thedrive trainorthe brake
system.
! As
the ESP ®
system operates automatically ,
the engine andtheignition mustbeswitched
off (the SmartKey mustbeinposition 0092or
0047 inthe ignition lock),ifthe electric parking
brake istested onabraking dynamometer
(maximum 10seconds).
Braking triggered automatically byESP ®
may
cause severe damage tothe brake system.
All check sand maintenanc ework onthe brake
system mustbecarried outataqual ified spe-
cialist workshop.
Have brake padsinstalled andbrake fluid
replaced ataqual ified specialist workshop. 148
Driving
tipsDriving andparking