2019 MERCEDES-BENZ CLA COUPE engine

The
three redindicator lampsinthe button indi-
cate theheating levelyouhave selected.
The system automatically switchesdownfrom
level 3to level 2after approximately eight
minutes. The
system automatically switchesdownfrom
level 2to level 1after approximately ten
minutes.
The system automatically switchesoffapprox-
imately 20minutes afteritis set tolevel 1.
X Turn theSmart Keytoposition 0047or0048 inthe
ignition lock(Ypage 123).
X To switch on:press button 0043repeatedly
until thedesired heating levelisset.
X To switch off:press button 0043repeatedly
until allthe indicator lampsgoout.
i If
the battery voltage istoo low, theseat
heating mayswitch off.
Problems withtheseat heating Problem
Possible
causes/conse quencesand0050 0050
Solutions The
seat heating has
switched offprematurely
or cann otbe switched
on. The
on-board voltageistoo low because toomany electric alconsum-
ers are switched on.
X Switch offelectric alconsumer sthat youdonot need, suchasthe
rear window defrosteror inter iorlighting.
Once thebattery issufficient lycharged, theseat heating willswitch
back onautomatically. Steering
wheel Import
antsafety notes G
WARNIN
G
You could losecontrolofyour vehicle ifyou do
the following whiledriving:
R adjust thedriver's seat,head restraint,
steerin gwheel ormirrors
R fasten theseat belt
There isarisk ofan accident .
Adjust thedriver's seat,head restraint, steer-
ing wheel andmirror andfasten yourseatbelt
before startingthe engine. G
WARNIN
G
Children couldinjure themselves ifthey
adjust thesteerin gwheel. Thereisarisk of
injury. Never
leavechildren unsupervised inthe vehi-
cle.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. Adjust
ingthe steering wheel G
WARNIN
G
If the steerin gwheel isunlocked whilethe
vehicle isin motion ,it could change position
unexpect edly.Thiscould cause youtolose
cont rolofthe vehicle. Thereisarisk ofan
accident . 96
Steering
wheelSeats,steering wheelandmirrors

mirror
usingbutton 0087aslong asthe indica tor
lamp islit.
X Press button 0087up, down, ortothe right or
left until youhave adjusted theexterior mirror
to the correct position. Youshou ldhave a
good overvie wof traffic conditions.
The convex exterior mirrorsprovidealarg erfiel d
of visio n.
After theengine hasbeen started, theexterior
mirrors areautomatical lyheated atlow outsid e
tempera tures.Heating takesamaximu mof ten
minutes.
i You
canalsoheat upthe exterior mirrors
manua llyby switchi ngon the rear windo w
defroster.
Fo lding theexterio rmirrors inor out
ele ctrical ly X
Turn theSmartKey toposi tion 0047or0048 inthe
ignitio nlock (Ypage 123).
X Briefly press0043.
Both exterior mirrorsfoldinor out.
i Make
surethattheexterior mirrorsare
alw aysfolde dout fullywhil edrivi ng.They
could otherwi sevibra te.
i If
you aredrivi ngfaster than30mph
(47 km/h), youcan nolonger foldinthe exte-
rior mirrors.
Resettin gthe exterio rmirrors If
the battery hasbeen disconnected orcom-
pletel ydischa rged,theexterior mirrorsmustbe
reset. Theexterior mirrorswillotherwi senot
fold inwhen yousele ctthe "Fold inmirrors when
locking" function inthe on-board computer
(Y page 190). X
Turn theSmartKey toposi tion 0047inthe igni-
tion lock (Ypage 123).
X Briefly press0043.
Fo lding theexterio rmirrors inor out
automatically If
the "Fold inmirrors whenlocking" function is
activated inthe on-board computer
(Y page 190):
R the exterior mirrorsfoldinautomatical lyas
soon asyou lock thevehicl efrom theoutsid e.
R the exterior mirrorsfoldoutagainautomati-
call yas soon asyou unlock thevehicl eand
then open thedriver' sor front-passenger
door.
i If
the exterior mirrorshavebeen foldedin
manua lly,they donot fold out.
Exterio rmirror pushed outofpositio n If
an exterior mirrorhasbeen pushedout of
posi tion, proceed asfollo ws:
X Vehic
leswitho utele ctrical lyfoldin gexte-
rior mirrors: movetheexterior mirrorinto
the correct position manua lly.
X Vehic
leswith electrical lyfoldin gexterio r
mirrors: pressandhold mirror-fold ingbutton
(Y page 98)until youhear themirror clickinto
pla ce.
The mirror housingisengage daga inand you
can adju stthe exterior mirrorsasusu al
(Y page 97). Automatic
anti-glaremirrors G
WARNING
Electroly temay escap eif the glassinan auto-
matic anti-gla remirror breaks.The electrol yte
is harmfu land cause sirritati on.Itmust not
come intocontact withyourskin, eyes,res-
pira tory organs orclothing orbe swa llow ed.
There isarisk ofinjury. 98
MirrorsSeats,
steering wheeland mirrors

If
you come intocontact withtheelectroly te,
observe thefollow ing:
R Rinse offthe electroly tefrom yourskin
immedi atelywithwater.
R Immedia telyrinse theelectroly teout of
you reyes thoroughl ywith clean water.
R Ifthe electroly teisswal lowe d,immedi ately
rinse yourmouth outthoroughl y.Do not
induce vomiting.
R Ifelectroly tecomes intocontact withyour
skin orhair orisswal lowe d,seek medica l
attention immediately.
R Immedia telychange outofclothing which
has come intocontact withelectroly te.
R Ifan allergic reaction occurs,seekmedica l
attention immediately.
The "Automatic anti-glaremirrors"function is
only availableifthe vehicle isequi pped withthe
"Mirro rspackage ".
The rear-view mirrorandtheexterior mirroron
the driver's sideautoma ticallygointo anti-glare
mode if:
R the ignition isswitched onand
R incident lightfrom headlampsstrikes thesen-
sor inthe rear-view mirror
The mirrors donot gointo anti-glare modeif
reverse gearisengaged orifthe interior lighting
is switched on. Parking
positionfor the exterio rmir-
ror onthe front-passenge rside
Setting andstoring theparking position You
cansetthe front-passenger sideexterior
mirror suchthatyoucan seetherear wheel on
that side assoon asyou engage reverse gear.
You canstore thispositio n. 0043
Button forthe driver's sideexterior mirror
0044 Button forthe front-passenger sideexterior
mirror
0087 Button forthe exterior mirrorsetting
0085 Memory buttonM
X Make surethatthevehicle isstationary .
X Turn theSmartKey topositio n0048 inthe igni-
tion lock orstart theengine (Ypage 123).
X Press button 0044.
X Engage reverse gear.
The exterior mirroronthe front-passenger
side moves tothe defau ltparking position.
X Use button 0087toadjust theexterior mirrorto
a positio nthat allows youtosee therear
wheel andthecurb.
The parking positionis stored.
i If
you shift thetransmission toanother posi-
tion, thefront-passenger sideexterior mirror
returns tothe driving position.
Call ingupastored parking positionset-
ting X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 123).
X Adjust thefront-passenger sideexterior mir-
ror using thecorresponding button
(Y page 97).
X Engage reverse gear.
The exterior mirroronthe front-passenger
side moves tothe stored parking position.
The exterior mirroronthe front-passenger side
moves backtoits origina lpositio n:
R as soon asyou exceed aspeed of9mph
(15 km/h)
R abou tten seconds afteryouhave disenga ged
reverse gear
R when youusebutton 0043toselect theexterior
mirror onthe driver's side Mirrors
99Seats,steerin gwhe eland mirrors Z

take
preced ence overthe daytime running
la mps .
US Aon ly:
The daytime running lamps impro vethe visibility
of your veh icledu rin gthe day.To do this,the
da ytime running lamps functio nmu stbe
sw itch edon using the on-b oard comp uter
(Y page 189 ).
If the engineisrunning andyoutur nthe light
sw itch tothe 0060 or0058 positio n,the manua l
se tting stake preced ence overthe daytime run-
ning lamps .
Lo w-be am headl amps
Even ifthe light senso rdo es not detect thatit is
da rk, the parki ng lamps andlow-b eam head-
la mps switch onwh enthe igniti onissw itch edon
and thelight switch isse tto the 0058 positio n.
Thi sis apa rtic ular ly us efu lfu nctio nin the event
of rain and fog.
X To
switchon the low- be am headl amps:
tur nthe Sma rtKeyto positio n0048 inthe igni-
tio nlock orsta rtthe engine.
X Tu rn the light switch to0058.
The green0058 indicator lamp inthe instru-
ment cluste rlights up.
Rea rfo glamp
The rearfog lamp impro ves visibility ofyour
veh iclefor the trafficbe hind inthe eventofthi ck
fog .Pl ea se take note ofthe country -specific
reg ulati ons forthe useof rea rfog lamps .
X To switchon the rear foglamp :tur nthe
Sma rtKeyin the igniti onlock topo sitio n0048 or
sta rtthe engine.
X Tu rn the light switch to0058 or0058.
X Pre ssthe 005E button.
The yellow 005E indicator lamp inthe instru-
ment cluste rlights up.
X To switchof fthe rear foglamp :pre ssthe
005E button.
The yellow 005E indicator lamp inthe instru-
ment cluste rgo es out.
i Wh
enthe rearfog lamp issw itch edon, the
cente rbra kelamp inthe tailla mp switch esoff
du eto alega lreq uirem ent.
Park inglamps
! If
the battery charge isver ylo w, the parki ng
la mps orsta ndi ng lamps areau toma tically
sw itch edoff toena ble the next enginestart.
Alw ayspa rkyour veh iclesa fel yand inawe lllit ar
ea ,in acc ordance with the releva ntlega l
sti pu latio ns. Avoi dus ing the 0060 parki ng
la mps overa pe rio dof sever alhou rs.Ifpo s-
si bl e, sw itch onthe right-h and 0064 orleft-
ha nd 0063 standi ng lamps .
X To switchon :tur nthe light switch to0060.
Th egre en0060 indicator lamp inthe instru-
ment cluste rlights up.
Stan dinglamps
Swi tchi ngon the standi ng lamps ensures the
corr espo ndi ngside ofthe vehicleis illu mi nate d.
X To switchon the stan dinglamp s:the
Sma rtKeyis not inthe igniti onlock oritis in
po sitio n005A inthe igniti onlock.
X Tu rn the light switch to0063 (left-h andside of
the vehicle) or 0064 (right- hand side ofthe
veh icle). Co
mbi nati onswitch X
To indic ate briefly:pre ssthe comb ination
sw itch brieflyto the pressu repoint inthe
di rec tionof arrow 0044or0085.
Th ecorr espo ndi ng turnsigna lfla she sthre e
tim es.
X To indic ate :pre ssthe comb inationsw itch
be yond the pressu repoint inthe direc tionof
ar row 0044or0085.
X To
switchon the high-b eam headl amps:
tur nthe light switch to0058 or0058.
X Pre ssthe comb inationsw itch beyond the
pre ssu repoint inthe direc tionof arrow 0043.
Th ehigh- beam headlamps onlysw itch onin
the 0058 positio nif the low-b eam he adlamps
ar eon.
Th eblue 0057 indicator lamp inthe instru-
ment cluste rlights upwhen the high- beam
he adlamps aresw itch edon. 10
2 Ex
teri orlighti ngLights andwind shield wipers

Overview
ofclimat econtrol systems General
notes
Observe thesettings recom mended onthe fol-
lowing pages. Thewindows couldotherwisefog
up.
To preven tthe windows fromfogging up:
R switch offclimate control only briefly
R switch onair-rec irculation modeonlybriefly
R switch onthe cooling withairdehumidifica-
tion function
R switch onthe defrost windshield function
briefly, ifrequired
The air-con ditionin gsystem ordual-zon eauto-
matic climate control regulates thetemper ature
and thehumidity ofthe vehicle interiorand fil-
ters undesirable substancesfrom theair.
The air-con ditionin gsystem ordual-zon eauto-
matic climate control can only beoperated
when theengin eis runn ing.Optimum operation
is only achieved withtheside windows andpan-
orama roofwith power tilt/sliding panelclosed.
If you start theengine usingyoursmart phone,
the last select edclimate control settingisreac-
tivat ed(Ypage 83).
The residual heatfunctioncanonly beactivat ed
or deactivat edwith theignition switched off
(Y page 120). Always
keepthevent ilation flapsbehind the
side trimpanel inthe cargo compart mentclear
(Y page 107). Otherwisethevehicle willnotbe
vent ilated correctly.
i Vent
ilate thevehicle forabrief period during
warm weather, e.g.using theconvenien ce
opening feature(Ypage 83).This willspeed
up the cooling process andthedesired inte-
rior temper aturewillbereached more
quickly.
i The
integ rated filterfilters outmost parti-
cles ofdust andsoot andcomplet elyfilters
out pollen. Italso reduces gaseous pollutant s
and odors. Aclogged filterreduces the
amount ofair supplied tothe vehicle interior.
For this reason, youshould alwaysobserve
the inter valforreplacing thefilter, which is
specified inthe Mainten anceBooklet.Asit
depends onenviro nmentalcon ditions ,e.g.
heavy airpollution, theinter valmay be
short erthan statedinthe Mainten anceBook-
let.
i It
is possible thatunder certaincirc umstan -
ces theresidual heatfunction may beactiva-
ted automatic allyanhour after theSmart Key
has been removed inorder todry the auto-
matic climate control. Thevehicle isthen ven-
tilated for30minut es. Overview
ofclimat econtrol systems
111Climat econtrol

The
climate controlsystem switches tothe
following functions:
R high airflow
R high temperat ure
R air distribution tothe windshield andfront
side windows
R air-recirc ulationmodeoff
i The
"Windshield defrosting"funct ionauto-
matically setstheblower leveltothe optimum
defrost ingeffect .As aresult, theairflow may
increase ordecrease automatically afterthe
0064 button ispressed.
i You
canadjust theblower levelmanually
while the"Windshield defrosting"funct ionis
in operation:
R Air- condit ioning system: turnairflow con-
trol 0083count er-clockwise orclock wise
(Y page 112).
R Dual-zon eautomatic climatecontrol:press
the 00F2 or00F3 button .
X To deactivat e:press the0064 button .
The indicator lampinthe 0064 button goes
out. Thepreviously selectedsettings are
restor ed.Air-recirc ulation moderemains
deactivated.
or
X Dual-zon eclimate control:press the0058
button .
The indicator lampinthe 0064 button goes
out. Airflow andairdistribution aresetto
automatic mode.
or X Air- condit ioning system: turntemperat ure
cont rol0043 count er-clockwise orclock wise
(Y page 112).
Dual-zon eautomatic climatecontrol:turn
temperat urecont rol0043 or006D count er-clock-
wise orclock wise(Ypage 114). MAX
COOL maxim umcooli ng
The MAX COOL functionisonly availabl ein vehi-
cles forthe USA .
MAX COOL isonly operational whentheengine
is runnin g. X
To activat e:press the00C9 button .
The indicator lampinthe button lightsup.
X To deactivat e:press the00C9 button .
The indicator lampgoesout.Thepreviously
selected settings arerestor ed.
When youactivate MAXCOOL, climate control
switches tothe following functions:
R maximum cooling
R maximum airflow
R air-recirc ulationmodeon Removing
condensation fromthewin-
dows
Windows foggeduponthe inside Air-conditioning
system
X Act ivate the005A "Cooling withairdehumid-
ification" function.
X Ifthe windows continue tofog up,activate the
0064 "Windshield defrosting"funct ion.
i You
should onlyselect thissettinguntil the
windshield isclear again.
Dual-zone automat icclimate control
X Act ivate the005A "Cooling withairdehumid-
ification" function.
X Act ivate automatic mode0058.
X Ifthe windows continue tofog up,activate the
0064 "Windshield defrosting"funct ion.
i You
should onlyselect thissettinguntil the
windshield isclear again.
Windows foggeduponthe outside X
Act ivate thewindshield wipers.
X Set theairdistribution to009C or009B.
i You
should onlyselect thissettinguntil the
windshield isclear again. Rear
window defroster
General notes The
rear window defroster hasahigh current
draw. Youshould therefor eswitch itoff assoon
as the rear window isclear. Otherwise, therear
window defroster switchesoffautomatically
after several minutes. Opera
tingtheclimate controlsystems
119Climatecontrol

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

Note
son bre aking-in ane wve hic le Impo
rtant safety notes
Th ese nso rsy ste mof some driving and driving
sa fety syste ms adjus tsautoma tically wh ile a
cer taindi sta nce isbe ing driven after the vehicle
ha sbe en deliver edorafter repairs. Fullsy ste m
eff ecti vene ssisnot reache dunti lthe end ofthi s
tea ch-i npro ced ure.
New andreplaced brakepads and discs only
rea chthe irop tim um braking effect after sever al
hu ndr edkilome ters ofdri ving. Compe nsatefor
thi sby applying gre aterfor cetothe brakepedal. The
first 1000 miles(150 0km)
Th emor eyo ulook after the enginewhen itis
new ,the mor esa tis fied youwi llbe with its per-
for ma nce inthe futur e.
R Yo usho uld the refore drive atvarying vehicle
and enginespee ds for the first 1000 miles
(15 00km).
R Avoi dhe avylo ad s,e.g .dri ving atfullthro ttle,
du ring thispe riod .
R Ch ang ege ar ingo od tim e,be for ethe tach-
ome ternee dleis 00C3 ofthe wayto the red area
of the tachomete r.
R Do not manua lly shi ftto alo we rge ar to bra ke
the vehicle.
R Try toavoid de pre ssing the accelera tor pedal
be yond the point ofres istanc e(ki ckdo wn).
R Ide ally,for the first 1000 miles(15 00km),
dr ive in prog ram E.
Ad dition albreak ing-innotesfor Mer cedes-AM G
veh icles:
R Do notdriv efast erthan 85 mph (140km /h)
for thefir st 1,0 00 miles (1,500km).
R On lyallow theeng inetoreac hamax imum
eng inespee dof 4,5 00 rpm briefly.
R Chan gegear ingood time.
Af ter1,0 00 miles (1,500km),you can increas e
th eeng inespee dgrad ually andbringth eveh icle
to full spee d.
You shoul dalso obse rveth ese noteson break -
ing -in ifth eeng ineorpart sof thedriv etrain on
your vehicle have been replaced .
Always observeth emax imum permissible
spee d. Driv
ing Imp
ortant safety notes G
WAR
NING
Obj ectsin thedriv er'sfoo twe llcan restrict the
pedal travel orobst ructa depr esse dpedal.
The oper atingand road safetyof theveh icle is
je opard ized.Ther eis arisk ofan acc iden t.
Mak esure that all obj ect sin theveh icle are
st owed correctly, and that they can notent er
th edriv er'sfoo twe ll.Inst all thefloo rmats
sec urely andasspec ified inorde rto ens ure
suff icientcle aran cefor thepedals .Do notuse
loos efloo rmats and donotplace floormats on
to pof oneano ther. G
WAR
NING
Un suit able footwe arcan hinder correctusage
of thepedals ,e.g .:
R shoe swith thick soles
R shoe swith high heels
R slippe rs
Ther eis arisk ofan acc iden t.
Wear suitable footwe arto ens ure correct
usage ofthepedals . G
WAR
NING
If you switchoff theign ition while driving,
safe ty-rele vantfun ction sare onlyavailabl e
with limitations,or no tat all. This couldaff ect ,
for exam ple,thepower steeri ngand thebrak e
boos tingeff ect .You willrequi recon sider ably
mor eeff ort tosteer and brak e.Ther eis arisk
of an acc iden t.
Do notswit choff theign ition while driving. G
WAR
NING
If th epark ingbrak ehas notbeen fully
rele ased when driving,th epark ingbrak ecan :
R ove rheatand caus eafir e
R lose itshold function .
Ther eis arisk offireand anacc iden t.Release
th epark ingbrak efully beforedriv ingoff. 122
Driv
ingDriv ingand parking