2019 MERCEDES-BENZ CLA COUPE lock

If
the battery voltage istoo low, therear window
defroster mayswitch off. Ac
tivating/de activating X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 123).
X Press the006C button.
The indicator lampinthe 006C button lights
up orgoes out.
Proble mswith therear window defroster Proble
m Possi
blecauses /consequen cesand 0050 0050
Solutio ns The
rear window
defroster hasdeactiva -
ted premature lyor can-
not beactivated. The
battery hasnotbeen sufficie ntlycharged.
X Switch offany consumers thatarenot requi red,e.g.readi nglamp s,
interior lighting orthe seat heating.
When thebattery issufficie ntlycharged, therear window defroster
can beactivated again. Swi
tching air-recirculatio nmode
on/ off
Gene ralnotes You
candeactiva tethe flow offresh airif
unple asantodors areentering thevehicle from
outsid e.The airalrea dyinside thevehicle will
then berecircula ted.
If you switch onair-recircu lationmode, thewin-
dows canfogupmore quickly, inparticul arat
low temperature s.Only useair-recircul ation
mode brieflyto prevent thewindow sfrom fog-
ging up.
The opera tionofair-recircul ationmode isthe
same forallcontrol panels.
Ac tivating/de activating X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 123).
X To activate: pressthe008A button.
The indicator lampinthe 008A button lights
up.
Air-recircula tionmode switches onautoma ti-
cally :
R at high outsid etemperature s
R at high levelsof poll ution
When air-recircu lationmode isactivated auto-
matical ly,the indicator lampinthe 008A button
is not lit.Outside airisadde dafter about
30 minutes . X
To deactivate: pressthe008A button.
The indicator lampinthe 008A button goes
out.
i Air-recircula tionmode deactiva tesauto-
matical ly:
R after appro ximately fiveminutes atoutsid e
temperature sbelo wappro ximately 45‡
(7 †)
R after appro ximately fiveminutes ifthe
"Co oling withairdehu midifi cation" func-
tion isdeactiva ted
R after appro ximately 30minutes atoutsid e
temperature sabove approximately 45‡
(7 †) ifthe "Cooling withdehu midifi cation"
function isactivated Swi
tching theresidual heatonoroff
Gene ralnotes The
residu alheat function isonly availablein
vehicle sfor Cana dawith dual-zone automa tic
climate control.
It is possib leto make useofthe residu alheat of
the engine tocontinue heatingthevehicle for
appro ximately 30minutes aftertheengine has
been switched off.The heating timedepends on
the setinterior temperature .
i The
blow erwil lrun atalow speed regard less
of the airflowsetting. 120
Operating
theclimat eco ntrol systemsClimate control

i
If
you activate theresidu alheat function at
high temperature s,only theventilation willbe
activated. Theblow erruns atmediu mspeed .
i You
cannot usetheventilation tocool the
vehicle interior toatemperature lowerthan
the outsid etemperature .
Ac tivating/de activating X
Turn theSmartKey topositio n005A inthe igni-
tion lock orremove it(Y page 123).
X Press the004B button.
The indicator lampinthe 004B button lights
up orgoes out.
The indicator lampinthe button indicates that
the respective functionisactivated.
i Resi dualheat isdeactiva tedautoma tically:
R after appro ximately 30minutes
R when theignition isswitched on
R ifthe battery voltage drops Air
vents Important
safetynotes G
WARNING
Very hotorvery cold aircan flow from theair
vents. Thiscould resultin burns orfrostbite in
the immedi atevicinity ofthe airvents. There
is arisk ofinjury.
Make surethatallvehicle occupants always
maintain asufficie ntdistance tothe airout-
lets. Ifnecessary ,redirect theairflowto
another areaofthe vehicle interior.
In order toensure thedirect flowoffresh air
through theairvents intothevehicle interior,
plea seobserve thefollow ingnotes:
R keep theairinlet between thewindshi eldand
the hood freeofblockage s,such asice, snow
or lea ves.
R never covertheairvents orair intake grillesin
the vehicle interior.
i For
optimal climatecontrolinthe vehicle ,
open theairvents completely andsetthe
adjusters tothe central position. Setting
theairvents 0043
Side window defroster vent
0044 Side airvent
X To open aside airvent: turntheadjuster in
side airvent 0044tothe left.
X To clo seaside airvent: turntheadjuster in
side airvent 0044clockwise asfar asitwil lgo.
i The
center andrear airvents areadjusted in
the same way. Ai
rvents
121Climate control Z

!
Do
not warm upthe engine whilestationary.
Pull awayimmediately .Avoid highengine
speeds andfullthrott leuntil theengine has
reached itsoperating temperature.
In vehicles withautomatic transmission,
engage positions Pand Ronly when thevehi-
cle isstationary.
Where possible ,avoid spinning thedrive
wheels whenpulling awa yon slippe ryroads.
You could otherwise damagethedrive train.
! Mercedes-AMG
vehicles:avoid full-loa d
operation andengine speeds greater than
5000 rpmwhen theengine iscold. Thishelps
to protect theengine andavoids uncomfort-
able driving. Key
positions
Smar tKey 005A
Toremove theSmartKey
(shift thetransmission toposition 005D)
0047 Power supplyfor some consumers, suchas
the windshiel dwipers
0048 Ignition (powersupplyfor allconsumers)
and drive position
0049 Tostart theengine
i The
SmartKey canbeturned inthe ignition
lock even ifit is not thecorrect SmartKey for
the vehicle. Theignition isnot switched on.
The engine cannot bestarted.
Star t/Stop button General
notes
Vehicles withKEYLES S-GOareequip pedwith
SmartKeys featuringtheintegrated KEYLESS-
GO function andadetachable Start/Stopbut-
ton. A
check whichperiodica llyestablishes aradio
connec tionbetween thevehicle andtheSmart-
Key determines whetheravalid SmartKey isin
the vehicle. Thisoccurs, forexample, when
starting theengine.
When youinsert theStart/ Stopbutton intothe
ignition lock,thesystem needsapproximately
two seconds recognition time.Youcanthen use
the Start/ Stopbutton.
Pressing theStart/ Stopbutton several timesin
succession corresponds tothe different Smart-
Key positions inthe ignition lock.Thisisonly the
case ifyou arenot depressing thebrake pedal.
If you depress thebrake pedalandpress the
Start/ Stopbutton, theengine startsimmedi-
ately.
To start thevehicle without actively usingthe
SmartKey:
R the Start/ Stopbutton mustbeinserted inthe
ignition lock
R the SmartKey mustbeinthe vehicle
R the vehicle mustnotbelocked withthe
SmartKey orKEYLES S-GO(Ypage 71)
Do not keep theKEYLES S-GOkey:
R with electronic devices,e.g.amobile phone
or another SmartKey.
R with metallic objects, e.g.coins ormetal foil.
R inside metallic objects, e.g.ametal case.
This canaffect thefunctionality ofKEYLES S-GO.
If you lock thevehicle withtheSmartKey remote
cont rolorwith KEYLES S-GO,afterashort time:
R you willnotbeable toswitch onthe ignition
with theStart/ Stopbutton.
R you willnolonger beable tostart theengine
with theStart/ Stopbutton untilthevehicle is
unlocked again.
If you lock thevehicle centrallyusing thebutton
on the front door(Ypage 76),youcan cont inue
to start theengine withtheStart/ Stopbutton.
The engine canbeswitched offwhile thevehicle
is in motion bypressing andholding theStart/
Stop button forthree seconds. Thisfunction
operates independently ofthe ECO start/st op
automatic engineswitch-off function. Driving
123Drivingandparking Z

Key
positions with theSt art/S top button 0043
Start /S topbut ton
0044 Ignition lock
As soo nas theign ition isswit ched on,all the
ind icat orlamps intheins trumen tclus terligh t
up.
Fo rfur ther inf orm ation on situati onsin whic han
ind icat orlamp either fails togo out afterthe
en gin eis start ed orligh tsup while driving,
pleas eref erto "Warn ingand indicat orlamps in
th eins trumen tclus ter" (Y page 221).
If St art /S topbut ton0043 has notyet been
pre sse d,this is thesame astheSm artKey bein g
rem ovedfrom theign ition .
X To swit chon thepower supply:pre ss
St art /S topbut ton0043 once.
The power supplyis swit ched on.You cannow
act ivat eth ewin dsh ield wiper s,for example .
The power supplyis swit ched off again if:
R thedriv er'sdoor isopen edand
R you pressStart /S topbut ton0043 twicewhen in
th is posi tion
X To swit chon theignit ion:pressStart /S top
but ton0043 twice.
The ignition isswit ched on.
If you pressStart /S topbut ton0043 once when
in this posi tion ,th eign ition isswit ched off
again .
Rem oving theSt art/S top button
You canremove theSt art /S topbut tonfrom the
ign ition lockand start theveh icleas norm al
usin gth eSm artKey.
You canonlyswit chbet ween Start /S topbut ton
mod eand SmartKey oper ation when theveh icle
is stati onary.
You must alsoengage parkposition 005D. X
Remo veStart /S topbut ton0043 from ignition
loc k0044.
You donothave torem ove theSt art /S topbut -
to nfrom theign ition lockwhen youleaveth e
veh icle. You should, howe ver,always taketh e
Sm artKey withyou when leavingtheveh icle. As
lon gas theSm artKey isin theveh icle:
R theveh iclecan bestart ed usin gth eSt art /
St op but ton
R theelec trical lypower edequipm entcan be
oper ated St
arting theengine
Imp ortant safety notes G
WAR
NING
If ch ildr enare leftuns uper vised intheveh icle,
th ey could:
R oper atetheveh icle's equipm ent
Ad dition ally, childr encould set theveh iclein
mot ionif,for example ,th ey:
R rele ase thepark ingbrak e
R shif tth eauto matictrans mis sion outofpark
posi tion005D
R start theen gin e
Ther eis aris kof an acc iden tand injury.
Nev erleav ech ildr enoranim alsunat tend ed in
th eveh icle.
When leavingtheveh icle, always taketh e
Sm artKey withyou and lockth eveh icle. This
also applie sfor theDig italVeh icleKey ifth e
"Di gitalVeh icleKey" function isact ivat edvia
Mer cedesme conn ect . G
DANG
ER
Comb ustion engin esemit poisonous exhaust
gase ssuc has car bon mon oxide. Inhalin g
th ese exhaust gasesis haz ardo ustohealt h
and canresult inpois oning .Ther eis aris kof
fat alinj ury. Ther efore,never leav eth een gin e
run ningin an enclo sed spac ewit hout ade-
quat even tilati on. 124
Driv
ingDriv ingand parki ng

G
WARNING
Flamma blemateria lsintrodu cedthrough
environmental influence orby anima lscan
ignite ifin contact withtheexhau stsystem or
parts ofthe engine thatheatup. There isarisk
of fire.
Ca rry out regu larchecks tomake surethat
there arenoflamma bleforeig nmateria lsin
the engine compartment orinthe exhau st
system.
Gene ralnote s During
acold start, theengine runsathigh er
spee dstoenabl ethe catal yticconverter to
reach itsopera tingtempera ture.Thesound of
the engine maychange duringthis time.
Automatic transmissio n X
Shift thetransmissi ontoposi tion 005D
(Y pag e132) .
The transmissi onposi tion indica toronthe
multi function displayshow s005D
(Y pag e131) .
i You
canstart theengine intransmissi on
posi tions 005Dand 005C.
Starting procedurewith the SmartKey To
start theengine using the SmartKey instead
of the Start/Stop button,pullthe Start/Stop
button outofthe ignitio nlock.
X Turn theSmartKey toposi tion 0049inthe igni-
tion lock (Ypag e123) andrelease itas soon
as the engine isrunning.
Starting procedurewith the Start/Stop
button The
Start/Stop buttoncanbeused tostart the
vehicl emanua llywitho utinserting theSmartKey
into theignitio nlock. TheStart/Stop button
must beinserted inthe ignitio nlock andthe
SmartKey mustbeinthe vehicl e.This mode for
starting theengine operatesindep endently of
the ECO start/stop automatic enginestartfunc-
tion.
You canstart theengine ifavali dSmartKey isin
the vehicl e.Switch offthe engine andalways
take theSmartKey withyouwhen leaving the vehicl
e,even ifyou only leaveitfor ashort time.
Pay attention tothe importa ntsafety notes.
X Depress thebrake pedaland keep it
depre ssed.
X Press theStart/Stop buttononce
(Y pag e123) .
The engine starts.
Starting procedureviasmartphone Observe
theimporta ntsafety notesonstarting
the engine (Ypag e124) .
You canalsostart yourengine viayou rsmart-
phone fromoutsidethe vehicl e.In this case, the
previ ouslysele cted clima tecontrol settingis
activa ted.Inthis way youcan cool orheat the
interior ofthe vehicl ebefore starting thejour-
ney.
Only start theengine viayou rsmartpho neifit is
safe tostart andruntheengine whereyourvehi-
cle isparked .
Observe thelega lstipu lations inthe area where
you rvehicl eis parked .Engine startviasmart-
phone maybelimi ted tocertain countries or
regio ns.
You canexecute amaximu mof two consecutive
starting attempts viayou rsmartpho ne.Ifyou
insert theSmartKey intotheignitio nlock, you
can carry outtwo more starting attempts.
Once youhave started theengine, youcan
swi tch the engine offvia you rsmartpho neatany
time.
You canonly start theengine viayou rsmart-
phone if:
R the SmartKey isin the ignitio nlock
R park position 005Dissele cted
R the accele ratorpedalis not depre ssed
R the alarm for the anti-theft alarm system is
not set
R the pani cala rm isnot activa ted
R the hazard warninglamp sare switched off
R the hood isclosed
R the doors areclosed andlocked
R the windo wsand sliding sunroof areclosed
Also make surethat:
R the fuel tank issuffi ciently filled
R the starter battery hasbeen sufficiently
charge d Drivi
ng
125Drivi ngand parking Z

G
WARNING
Limbs couldbe crushe dor trappe difthe
engine isstarted unintentional lyduri ngser-
vice ormaintena ncework. There isarisk of
injury .
Alwa yssecure theengine against uninten-
tional starting beforecarryingout mainte-
nance orrepa irwork.
Make surethattheengine cannot bestarted via
you rsmartpho nebefore carryingout mainte-
nance orrepa irs.You canprevent anengine
start viayou rsmartpho ne,forexampl e,ifyou :
R swi tch onthe hazard warning lamp s
R do not lock thedoors
R open thehood Pulli
ngaway
Gene ralnote s G
WARNING
If the engine speedis abo vethe idling spee d
and youengag etransmissi onposi tion 003A
or 0046, thevehicl ecoul dpul lawa ysud denly .
There isarisk ofan accide nt.
When engagingtransmissi onposi tion 003A or
0046, alwaysfirmly depressthe brake pedal
and donot simu ltaneou slyaccele rate.
Depress theaccele ratorcarefu llywhen pulling
awa y.
The vehicl elocks centrally onceyouhave pulled
awa y.The locking knobsinthe doors dropdown.
You canopen thedoors fromtheinsid eat any
time.
You canalsodea ctivate theautomatic locking
featu re(Y pag e189).
Vehic leswith automatic transmission:itis
possi bletoshift thetransmissi onfrom position
005D tothe desi redposi tion only ifyou depre ss
the brake pedal.Only thencantheparki nglock
be dea ctivated.
All vehi cles(ex cept Merce des-AMGvehi -
cle s):ifyou donot depre ssthe brake pedal,the
DIRECT SELECT levercan stillbemoved butthe
parki nglock remai nsengag ed. Merce
des-AMGvehic les:if you donot depre ss
the brake pedal,the sele ctor levercan stillbe
moved buttheparki nglock remai nsengag ed.
At transmissi onfluidtempera turesbelow 00F84‡
(00F820 †),you can only shift outofposi tion 005D
into another transmissi onposi tion when the
engine isrunning.
i Upshi
ftstake placeathigh erengine speeds
after acold start. Thishelpsthe catal yticcon-
verter toreach itsopera tingtempera ture
more quickly.
Information onthe automatic release ofthe
electric parkingbrake (Ypag e145) .
Hill start assist Hill
start assisthelp syou when pulling away
forwa rdorinreverse onanuph illgrad ient. It
hold sthe vehicl efor ashort timeafter youhave
removed yourfoot from thebrake pedal.This
gives youenoug htime tomove yourfoot from
the brake pedalto the accele ratorpedaland to
depre ssitbefore thevehicl ebegi nstoroll . G
WARNING
After ashort time,hillstart assistwil lno lon-
ger brake yourvehicl eand itcoul droll awa y.
There isarisk ofan accide ntand injury .
There fore,quickly move yourfoot from the
brake pedalto the accele ratorpedal.Never
lea vethe vehicl ewhen itis held byhillstart
assi st.
Hill start assistisnot active if:
R you arepulling awayon aleve lroad oron a
dow nhill gradient.
R the transmissi onisin posi tion 005C.
R the electric parkingbrake isapp lied.
R ESP ®
is malfu nctioning.
Further informati ononhold ingthe vehicl esta-
tionary onuph illgrad ients (Ypag e135). EC
Ostart/stop function
Introduc tion The
ECO start/stop functionswitches the
engine offautomatical lyifthe vehicl eis stoppe d
under certain conditions. 126
Drivi
ngDrivi ngand parking

Deact
ivating oract ivating theECO
st ar t/ stop funct ion X
To dea ctivate:pre ssECObut ton0043.
In dic ator lamp 0044goe sout .
X To act ivate:pre ssECObut ton0043.
In dic ator lamp 0044ligh tsup.
If indic ator lamp 0044isoff,th eEC Ostart /stop
fun ction has beendeac tivat ed man ually oras
th eres ult ofamalf unction .The engin ewill then
no tbe swit ched offaut omatically when theveh i-
cl e st ops . AMG
Performa nce exhaust sys tem
(Mer cedes-AMG vehicles )
You canchoos ebet ween differen tAM GPer -
fo rm anc eex haus tsyst emvolume susin gth e
pos ition oftheex haus tflap .
Ea ch time you start theen gin ewit hth eSm art-
Key ortheSt art /S topbut ton, thequiet estset-
ti ng isact ivat ed. Se
ttin g th evo lume :
X Press button0043.
If you selectth eloud estsetting ,in dic ator
lamp 0044ligh tsup. Pr
oblem swit hth eengin e Pr
oblem Poss
iblecauses/ cons equences and0050 0050
Solu tions The
engin edoe sno t
st art . The
HOLD function orActive Distanc eAs sis tDI ST RON ICisact ivat ed.
X De act ivat eth eHO LD function (Ypage 159)or Active Distanc e
As sis tDI ST RON IC(Y page 156).
X Tryto start theen gin eagain . The
engin edoe sno t
st art .The start ermo tor
can behear d. R
The reisamalf unction intheen gin eelec tron ics.
R The reisamalf unction inthefue lsupp ly.
Be fore atte mpt ing to start theen gin eagain :
X Tur nth eSm artKey backto pos ition 005Aintheign ition lock.
or X Press theSt art /S topbut tonrep eatedly untilall indic ator lamp sin
th einst rum entcl ust ergo out .
X Tryto start theen gin eagain .Av oid exce ssi vel ylon gand freque nt
at te mpt sto start theen gin eas these willdrainthebat tery.
If th een gin edoe sno tst art aftersev eralat te mpt s:
X Con sult aqualif iedspecialis twor kshop . 128
Dri
vingDri ving andpa rki ng

S+
Sport Plus Particularly
sportytrans-
mission settings Race
Maximum
sportiness and
engine andtransmission
settin gssuitable forthe
racetrack Additional
information fordrive programs
(Y page 135).
You canalso change gearyourself usingthe
steering wheelpaddle shifters. Forfurther infor-
mation onthe manual driveprogram
(Y page 137). Automat
ictra nsmission Import
antsafety notes G
WARNING
If the engine speedisabove theidling speed
and youengage transmission position003A
or 0046, thevehicle couldpullaway suddenly.
There isarisk ofan accident.
When engaging transmission position003Aor
0046, alwaysfirmly depress thebrake pedal
and donot simultaneously accelerate. G
WARNING
The automatic transmission switchestoneu-
tral position Nwhen youswitch offthe engine.
The vehicle mayrollaway .There isarisk ofan
accident.
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked vehi-
cle from rolling awaybyapply ingthe parking
brake. DIREC
TSELEC Tlever
Overview oftra nsmission positions 005D
Park position withparking lock
005E Reverse gear
005C Neutral
005B Drive
All vehicles (exceptMercedes-AMG vehi-
cles) :the DIRECT SELECTlever ison the right of
the steering column.
For information onthe selector leverin
Mercedes-A MGvehicles (Ypage 133).
The DIRECT SELECTlever alwaysreturns toits
original position. Thecurrent transmission posi-
tion 005D,005E,005Cor005B isshown inthe transmis-
sion position displayinthe multifunct iondisplay
(Y page 131).
Tra nsmission positionanddrive pro-
gram display The
current transmission positionanddrive pro-
gram appear inthe multifunct iondisplay . 0043
Transmission positiondisplay
0044 Gear
0087 Drive program display
The arrows inthe transmission positiondisplay
show howandinto which transmission positions
you can shift using theDIRECT SELECTlever.
If the transmission positiondisplayinthe mul-
tifunct iondisplay isnot working, youshould pull Automat
ictransmission
131Drivingandparking Z