2019 MERCEDES-BENZ CLA COUPE Owner's Manual

KEYLESS-
GO
Gene ralnot es Be
ar inmin dth at theen gin ecan bestart ed by
any oftheveh icleoc cup antsif th ere isaSm art-
Key intheveh icle.
Lockin gand unlockin g You
canstart ,loc kor unl ockth eveh icleusin g
KE YLE SS-GO .To do this, you onlyne ed car rythe
Sm artKey withyou. Youcancombi nethefun c-
ti on sof KE YLE SS-GO withth ose ofaco nven -
ti on alSm artKey. Unloc kth eveh icleby usin g
KE YLE SS-GO ,for instan ce,and lockit usin gth e
0037 buttonon theSm artKey.
The driver 'sdoor andthedoor atwhic hth ehan -
dle isused ,mus tbot hbe closed. TheSmartKey
mus tbe out side theveh icle. Whe nloc king or
unl ocking withKE YLE SS-GO ,th edist ance
bet ween theSm artKey and theco rrespo nding
door handlemus tno tbe gre aterth an three feet
(on emet er).
A ch eckwhic hper iodic allyestablis hesaradi o
co nn ection bet ween theveh icleand theSm art-
Key determ ineswhet heravalid SmartKey isin
th eveh icle. This occur s,for exampl e:
R when start ing theen gin e
R while drivin g
R when usingHA ND S-FRE EACCE SS
R when theex tern al door handles aretouch ed
R duri ngconven ien ceclosing X
To unl ock theveh icle: touch theinn ersur -
fac eof thedoor handle.
X To lock theveh icle: touch sensor surface0043
or 0044. Mak
esur eth at you donotto uch theinn er
sur faceof thedoor handle.
X Conve nienceclosin gfea ture: touch
rec ess edsen sor surface0044 for anextend ed
per iod.
Fur ther inform ation on theco nven ien ceclo s-
ing feat ure (Ypage 84). X
To unl ock thetrunk lid:pull trunk lidhan -
dle 0043.
Deact ivating and activating If
you donotint endto use theveh iclefor alon -
ger period oftime, youcan deac tivat eKE YLE SS-
GO. TheSmartKey willthen use verylit tle powe r,
th ere byconserv ing battery powe r.Fo rth epur-
pos esofact ivat ion/de activat ion,th eveh icle
mus tno tbe nearby.
X To dea ctivate: pre ssthe0037 buttonon the
Sm artKey twice inrapi dsuc cessi on.
The indicat orligh ton theSm artKey flashes
twi ce brieflyth en onelon gflas h,then KEY-
LE SS -GO isdeac tivat ed (Ypage 73).
X To act ivate: pressany buttonon theSm art-
Key.
or X Inser tth eSm artKey intoth eign ition lock.
KE YLE SS-GO andallofits asso ciatedfeat ures
are avail able again . KEYLESS-
GOstar tfu nct ion
Gene ralnot es Be
ar inmin dth at theen gin ecan bestart ed by
any oftheveh icleoc cup antsif th ere isaSm art-
Key intheveh icle. Sm
artKey
71Opening andclosing Z

Cha
nging theset tings ofthelockin g
syst em
You canchang eth eset tings oftheloc kin gsys-
te m. This mean sth at onlythedriv er'sdoor and
th efuel fillerflap areunlo cked when theveh icle
is unlo cked. This isusef ulifyou frequen tlytravel
on your own.
X To cha nge theset ting:pres sand hold the
0036 and0037 buttons sim ultan eousl yfor
appro ximatelysix sec onds unt ilth ebat tery
ind icat orlamp flashes twice (Ypage 73).
If th eset tingof theloc kin gsyst emisch ang ed
wit hin thesign alran geoftheveh icle,pres sing
th e0037 or0036 button:
R loc ksor
R unlo cksth eveh icle
The SmartKey nowfun ction sas foll ows:
X To unlo ck:pres sth e0036 buttonon ce.
X To unlo ckcent rally: pres sth e0036 button
twi ce.
X To lock centrally: pres sth e0037 button.
The KEYLE SS-GO function isch ang edasfol-
lows:
X To unlo ckthedr iver 'sdoor :to uch theinn er
surf ace ofthedoor handleonthedriv er's
door .
X To unlo ckcent rally: touch theinn ersurf ace
of thedoor handleonthefron t-passe nger
door ortherear door.
X To lock centrally: touch theout ersen sor
surf ace ononeof thedoor handles.
X To res toreth efa ctor yset tings: pres sand
hold the0036 and0037 buttons sim ultan e-
ously forappro ximatelysix sec onds unt ilth e
bat tery check lamp flashes twice
(Y page 73). Mech
anicalkey
Gener alnot es If
th eveh icle can nolonger belockedor
unlo cked withth eSm artKey orKEYLE SS-GO ,
use themec hanical key.
If you usethemec hanical keyto unlo ckand
open thedriv er'sdoor orthetrunk lid,theant i-
th eft alarm systemwill betrigger ed(Ypage 68). Ther
eare several ways totur noff thealarm :
X To dea ctiv ateth eala rm with thekey: press
th e0036 or0037 buttonon theke y.
or X Inser tth eSm artKey intoth eign ition lock.
or X To
dea ctiv ateth eala rm with KEYLESS- GO:
pres sth eSt art /S topbut tonin theign ition
loc k.The SmartKey must beintheveh icle.
or
X Loc kor unlo cktheveh icle usin gKE YLE SS-
GO. TheSmartKey must beout side theveh i-
cle .
If you unlo cktheveh icle usin gth emec hanical
ke y,thefuel fillerflap willnotbe unlo cked auto -
mat icall y.
X To unlo ckthefu el fille rfla p:ins ert the
Sm artKey intoth eign ition lock.
Rem oving themech anicalkey X
Push release catch0043 inthedire ction ofthe
arr ow and atthesame timerem ove mec han-
ical key0044 from theSm artKey.
For further inform ationabout :
R Un loc kin gth edriv er'sdoor (Ypage 77)
R Un loc kin gth etrunk (Ypage 82)
R Loc kingth eveh icle (Ypage 77)
Inser tingth emech anicalkey X
Push mechanical key0044 com pletelyintoth e
Sm artKey untilit en gages andrelease
cat ch0043 isback inits basic position. 72
Sm
artKeyOp ening andclosing

Smar
tKeybattery
Import antsafety notes G
WARNING
Batt eries containtoxic andcorrosive substan-
ces. Ifbatteries areswallow ed,itcan result in
severe healthproblems. Thereisarisk offatal
injury.
Keep batteries outofthe reach ofchildren. If
a battery isswallow ed,seek medical attention
immediately.
The SmartK eybatteries containperchlorate
material, whichmayrequire specialhandling
and regard forthe environm ent.National guide-
lines must beobserved duringdisposal. InCal-
ifornia, seewww .dtsc.ca.gov/
Haza rdousWa <00560057004800120033004800550046004B004F005200550044005700480012
004C005100470048005B0011004600490050>.
Mercedes-B enzrecommen dsthat youhave the
battery replaced ataquali fiedspecialist work-
shop.
Checking thebatt ery X
Press the0037 or0036 button.
The battery isworking properly ifbattery
check lamp0043lights upbriefly.
The battery isdischarged ifbattery check
lamp 0043does notlight upbriefly.
X Change thebattery (Ypage 73).
i Ifthe SmartK eybattery ischeck edwithin
the signal reception rangeofthe vehicle,
pressing the0037 or0036 button:
R locks or
R unlocks thevehicle
i You
cangetabattery atany quali fiedspe-
cialist workshop. Replacing
thebatt ery You
require aCR 2025 3V cell battery.
X Take themechanical keyoutofthe SmartK ey
(Y page 72). X
Press mechanical key0044into theopening in
the SmartK eyinthe direction ofthe arrow
until battery traycover 0043opens. Whendoing
so, donot hold cover 0043shut.
X Remove batterytraycover 0043. X
Repeatedly tapthe SmartK eyagainst your
palm untilbattery 0087falls out.
X Insert thenew battery withthepositive ter-
minal facing upwards.Use alint-f reecloth to
do so.
X Make surethatthesurface ofthe battery is
free oflint, grease andother contaminants.
X Insert thefront tabsofbattery traycover 0043
and then press toclose it.
X Insert mechanical keyinto theSmartK ey
(Y page 72).
X Check thefunct ionofall SmartK eybuttons on
the vehicle. Smar
tKey
73Opening andclosing Z

Problems
withtheSmar tKey Problem
Possible
causes/co nsequences and0050 0050
Solutions You
cannot lockor
unlock thevehicle using
the SmartK ey. The
SmartK eybattery isdischarged ornearly discharged.
X Vehicles
withoutKEYLESS-GO orKEY LESS-GO startfunction:
try tolock/un lockthevehicle againusingtheSmartK ey'sremote
cont rolfunct ion.Point thetipofthe SmartK eyatthe driver's door
handle fromclose range andpress the0036 or0037 button.
If this does notwork:
X Check theSmartK eybattery (Ypage 73)and replace itifnecessary
(Y page 73).
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Vehicles
withoutKEYLESS-GO orKEY LESS-GO startfunction:
try tolock/un lockthevehicle againusingtheSmartK ey'sremote
cont rolfunct ion.Point thetipofthe SmartK eyatthe driver's door
handle fromclose range andpress the0036 or0037 button.
If this does notwork:
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key. The
SmartK eyisfaulty.
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key.
X Have theSmartK eycheck edataquali fiedspecialist workshop. You
cannolonger lockor
unlock thevehicle using
KEYLE SS-GO. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 73)and replace itifnecessary
(Y page 73).
If this does notwork:
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key. 74
Smar
tKeyOpening andclosing

Problem
Possible
causes/co nsequences and0050 0050
Solutions KEYLE
SS-GO ismalfunctionin g.
X Lock/ unlock thevehicle usingtheremote controlfunct ionofthe
SmartK ey.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop.
If the vehicle canalso notbelocked/unlock edusing theremote con-
trol funct ion:
X Unlock (Ypage 77)orlock (Ypage 77)thevehicle usingthe
mechanical key.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop. The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary (Ypage 281).
or
X Jump-start thevehicle (Ypage 282).
or
X Consult aquali fiedspecialist workshop. The
engine cannot be
started usingtheStart /
Stop button. TheSmart-
Key isin the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 73)and replace itifnecessary
(Y page 73).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataqual ified specialist workshop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. Smar
tKey
75Opening andclosing Z

Door
s Im
por tant safet ynot es G
WAR
NING
If ch ildr enare leftuns uper vised intheveh icle,
th ey could:
R ope rateth eveh icle' sequip ment
Ad dition ally, childr encould set theveh icle in
mo tion if,forex amp le,they:
R rel ease thepar king bra ke
R shi ftth eaut omatic trans mis sionout ofpar k
pos ition 005D
R start theen gin e
The reisaris kof an acc iden tand inju ry.
Nev erleav ech ildr enorani mals unatten ded in
th eveh icle.
Whe nleav ing th eveh icle, always take the
Sm artKey withyou and lockth eveh icle. This
also appli esforth eDi git alVeh icle Key ifth e
"D igit alVeh icle Key" function isact ivat edvia
Mer cedes meconn ect.
You should preferab lyplac elugg ageorload sin
th ecar gocompa rtmen t.Obs erveth eload ing
guid elines(Y page 239). Unlo
ckingan dope ning doorsfrom
th einsi de
! The
sidewin dows willnotope n/close ifth e
bat tery isdis charg edorifth esid ewin dows
hav eiced up. Itwill then notbe pos sibleto
cl ose thedoo r.Do notat te mpt toforc eth e
doo rcl ose d.You could other wise damagethe
doo ror thesid ewin dow.
Whe nadoo ris ope ned,thesid ewin dow onthat
sid eope nsslig htly. Whe nth edoo ris close d,the
sid ewin dow close sagain . X
To unlock andope nafront door:pull door
han dle0044.
If th edoo ris loc ked,loc king knob 0043 pop sup.
The dooris unl ockedand opens.
X To unlock are ar doo r:pull uplocking
kn ob 0043.
The dooris unl ockedand canbeope ned.
X To ope nare ar doo r:pull doorhan dle0044.
You canopenadoo rfr om insid eth eveh icle
eve nif it has beenloc ked.You canonlyope nth e
rea rdoo rsfrom insid eth eveh icle ifth ey are not
sec uredby thech ild- pro ofloc ks(Y page 60).
If th eveh icle has previously beenloc kedwit h
th eSm artKey from theout side,ope ning adoo r
fr om theinsid ewill trigg ertheant i-th eftalar m
sys tem. Swi tchof fth ealar m(Y page 68). Cent
rally lock ingandun lock ingthe
veh icle from theinsi de
You cancentrall yloc kor unl ockth eveh icle from
th ein sid e.Thi scan beusef ulifyou wish toloc k
th eveh icle bef orepulli ngaway, forex amp le. X
To unlock :pre ssbut ton0043.
X To lock :pre ssbut ton0044.
If all thedoo rsand thetrunk lidare close d,the
veh icle loc ks. 76
Door
sOpening andclosing

Meanwhile,
thefuel filler flapwillnotbelocked
or unlocked.
You cannot unlockthevehicle centrally from the
inside ifthe vehicle hasbeen locked withthe
SmartK eyorKEYLES S-GO.
You canopen adoor from inside thevehicle
even ifit has been locked. Youcanopen therear
doors frominside thevehicle unlesstheyare
secured bythe child-proof lock(Ypage 60).
If the vehicle haspreviously beenlocked with
the SmartK eyfrom theoutside, opening adoor
from theinside willtrigger theanti-t heftalarm
system. Switchoffthe alarm (Ypage 68).
If alocked doorisopened fromtheinside, the
previous unlockstatusofthe vehicle willbe
taken intoconsideration if:
R the vehicle waslocked usingthelocking but-
ton forthe cent rallocking, or
R ifthe vehicle waslocked automatically
The vehicle willbefully unlocked ifit had previ-
ously beenfullyunlocked. Ifonly thedriver's
door hadbeen previously unlocked,onlythe
door which hasbeen opened fromtheinside is
unlocked. Automat
iclockin gfeatur e X
To deactivate: pressandhold button 0043for
approximately fiveseconds untilatone
sounds.
X To activate: pressandhold button 0044for
approximately fiveseconds untilatone
sounds.
If you press oneofthe two buttons anddonot
hear atone, therelevant settinghas already
been selected.
The vehicle islocked automatically whenthe
ignition isswitched onand thewheels areturn-
ing. You
could therefore lockyourself outif:
R the vehicle isbeing pushed
R the vehicle isbeing towed
R the vehicle ison aroller dynamometer
You canalso switch theautomatic lockingfunc-
tion onand offusing theon-board computer
(Y page 189). Unloc
kingthedriver's door(mechan-
ical key)
If the vehicle cannolonger belocked or
unlocked withtheSmartK eyorKEYLES S-GO,
use themechanical key.
If you usethemechanical keytounlock and
open thedriver's door,theanti-t heftalarm sys-
tem willbetriggered. Switchoffthe alarm
(Y page 68).
X Take themechanical keyoutofthe SmartK ey
(Y page 72).
X Insert themechanical keyinto thelock ofthe
driver's doorasfar asitwill go. X
Turn themechanical keycounter- clockwise
as far asitwill gotoposition 0047.
The door isunlocked.
X Turn themechanical keyback andremove it.
X Insert mechanical keyinto theSmartK ey
(Y page 72). Locki
ngthe vehicle (mechanical key)
If the vehicle cannolonger belocked withthe
SmartK eyorKEYLES S-GO,usethemechanical
key.
X Open thedriver's door.
X Close thefront -passenger door,therear
doors andthetrunk lid. Doo
rs
77Opening andclosing Z

X
Press thelockin gbutton onthe driver’s door
(Y page 76).
X Check whether thelockin gkno bson the
fron t-passenger doorandtherear doors are
still visible. Pressdownthelockin gkno bsby
hand, ifnecess ary.
X Close thedriver's door.
X Take themechanic alkey outofthe Smart Key
(Y page 72).
X Insert themechanic alkey into thelock ofthe
driver's doorasfar asitwill go. X
Turn themechanic alkey clock wiseasfar asit
will gotoposition 0047.
X Turn themechanic alkey back andremove it.
X Make surethatthedoors andthetrunk lidare
locked.
X Insert mechanic alkey into theSmart Key
(Y page 72).
i If
you lock thevehicle asdescribed above,
the fuel filler flapisnot locked. Theanti- theft
alarm system isnot armed. Tr
unk Impor
tantsafety notes G
WARNIN
G
Combustion enginesemitpoisonous exhaust
gases suchascarbon monoxide.Exhaust
gases canenter thevehicle interiorifthe
trunk lidisopen when theengine isrunnin g,
especially ifthe vehicle isin motion .There isa
risk ofpoisoning.
Always switchoffthe engine beforeopening
the trunk lid.Never drivewiththetrunk lid
open. G
WARNIN
G
If object s,luggage orloads arenot secured or
not secured sufficient ly,they could slip,tip
over orbe flung around andthereby hitvehicle
occupant s.There isarisk ofinjury, particu-
larly inthe event ofsudden braking orasud-
den change indirection .
Always storeobject sso that they cannotbe
flung around. Secureobjects,luggage or
loads against slipping ortipping beforethe
journey.
! The
trunk lidswings upwards whenopened.
Therefore, makesurethatthere issufficient
clearance abovethetrunk lid.
The opening dimensions ofthe trunk lidcan be
found inthe "Vehicle data"section
(Y page 325).
You should preferably placeluggage orloads in
the trunk .Observe theloading guidelines
(Y page 239).
Do not leave theSmart Keyinthe trunk .You
could otherwise lockyourself out.
The trunk lidcan be:
R opened andclosed manually fromoutside
R opened automatically fromoutside
R opened automatically frominside
R opened fromtheinside usingtheemergenc y
release Tailgat
eobstru ctiondetection with
reversing feature
On vehicles withanEASY-PA CKtailgate, the
tailgate isequipped withautomatic obstacle
recogn itionwithareversin gfeature. Ifasolid
object blocks orrestr ictsthetailgate whenauto-
matically openingorclosing, thisprocedure is
stopped. Ifthe tailgate isstopped duringthe
closing process, thetailgate automatically
opens againslightly. Theautomatic obstruction
detect ionwith reversin gfeature isonly anaid. It
is not asubstitut efor your atten tivenesswhen
opening andclosing thetailgate. 78
Tr
unkOpening andclosing