engine MERCEDES-BENZ CLA COUPE 2018 Owner's Guide

XPress the lockingbutton on the driver’s door
(Ypage 76).
XCheck whether the lockin gknobs on the
front-passenger door and the rear doors are
still visible. Press down the lockin gknobs by
hand, if necessary.
XClose the driver's door.
XTake the mechanical key out of the SmartKey
(Ypage 72).
XInsert the mechanical key into the lock of the
driver's door as far as it will go.
XTurn the mechanical key clockwise as far as it
will go to position 1.
XTurn the mechanical key back and remove it.
XMake sure that the doors and the trunk lid are
locked.
XInsert mechanical key into the SmartKey
(Ypage 72).
iIf you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-theft
alarm system is not armed.
Trunk
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion .There is a
risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is arisk of injury, particu-
larly in the event of sudden braking or asud-
den change in direction.
Always store object ssothat they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk lid can be
found in the "Vehicle data" section
(
Ypage 320).
You should preferably place luggage or loads in
the trunk .Observe the loading guidelines
(
Ypage 237).
Do not leave the SmartKey in the trunk .You
could otherwise lock yourself out.
The trunk lid can be:
Ropened and closed manually from outside
Ropened automatically from outside
Ropened automatically from inside
Rreleased with the emergencyr elease from the
inside
Opening/closing from outside
Opening
XPress the %button on the SmartKey.
XPull handle :.
XRaise the trunk lid.
78Trunk
Opening and closing

Closing
XPull down thetrunk lid usingh andle:.
XLet thetrunk lid dro pintot he lock.
XIf necessary, lockt hevehicle witht he&
butto nont heSmartKey or withK EYLESS-GO.
Opening automatically from outside
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases suchasc arbon monoxide. Exhaust
gases can ente rthe vehicle interiorift he
trunk lid is open when th eengineisr unning,
especiall yifthevehicle is in motion.T hereisa
ris kofp oisoning.
Always switch off th eengineb efore opening
th et runk lid. Never driv ewitht hetrunk lid
open.
!The trunk lid swings upward swhen opened.
Therefore, mak esure that there is sufficient
clearance abovet hetrunk lid.
iThe opening dimensionsoft hetrunk lid can
be foun dunde r"Vehicle data" (Ypage 320).
Opening automatically
You can open th etrunk lid automaticall yusing
th eS martKey or th ehandle in th etrunk lid.
XPress and hold the Fbuttonont heSmart-
Key until th etrunk lid opens.
or
XIf th etrunk lid is unlocked, pull th etrunk lid
handle and let it go again immediately.
HANDS-FREE ACCESS
Important safety notes
GWARNING
The vehicle's exhaust system may be ver yhot.
You coul dburn yourself by touching the
exhaust system if you use HANDS-FREE
ACCESS .Thereisar iskofi njury. Always
ensure that you only mak ethe kickin gmove-
men twithin th edetection range of sensors.
!If th eSmartKey is within th erear detection
range of KEYLESS-GO ,the followings itua-
tions ,for example ,coul dlead to th euninten-
tional opening of th etrunk:
Rusingac ar wash
Rusingap ower washer
Makes ure that th eSmartKey is at least 10 ft
(3 m) away from th evehicle.
iYou can also deactivate KEYLESS-GO .Fur-
ther informatio nondeactivatin gand activat-
ing KEYLESS-GO (
Ypage 71).
General notes
WithK EYLESS-GO and HANDS-FRE EACCESS,
you can open th etrunk lid without usingy our
hands. This is useful if you have your hands full. To do this, mak eakickingmovement unde rthe
bumpe rwithy our foot.
Observ ethe followingp oints:
RCarryyour KEYLESS-GO ke yabout your per-
son.T he KEYLESS-GO ke ymust be in th erear
detection range of th evehicle.
RWhen making th ekickin gmovement ,make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to th erear of th evehicle .You coul dotherwise
lose your balance, for example on ice.
Trunk79
Opening and closing
Z

RAlwaysensure thaty ouonlym aket he kicking
movement withint he detection range of sen-
sors :.
RStand at leas t12in(30 cm)awa yfrom the
rea rareaw hile doing so.
RDo not come into contact with the bumper
whilemaking the kicking movement. Other-
wise, the sensors mayn ot functioncorrectly.
RHANDS-FREE ACCESS does not functio ndur-
ing engine start.
RDirt caused by roads alta round sensors :
mayr estrict functionality.
Using the HANDS-FREE ACCESS with apros-
theti cleg mayr estrict functionality.
RIfaK EYLESS-GO key is withint he reardetec-
tio nr ange of KEYLESS-GO ,HANDS-FREE
ACCESS could be triggered .The trun klid
could thusbeo penedu nintentionally, for
example, when you:
-set something down or lift something up
behind the vehicle.
-polish the rea rofthe vehicle.
Do not carry the KEYLESS-GO key abouty our
personint hesesituations or in situations sim-
ilar to these. Thi swillp revent the uninten-
tional opening of the trun klid.
Operation
XTo open: kick into sensor detection range :
belo wthe bumpe rwithy ourfoot.
XIf the trunk li ddoesn otope nafters everal
attempts: wait at leas tten secondst hen
move your le gunder the bumpe ronce again.
If yo uholdy ourfootu nder the bumpe rfor too
long, the trun klid does not open. Repeat the leg
movement more quickl yifthiso ccurs.
Opening automaticall yfrom inside
Important safety notes
GWARNING
Combustion engine semitp oiso nousexhaust
gases such as carbo nmonoxide. Exhaust
gases can entert he vehicleinterio rifthe
trun klid is open when the engine is running,
especially if the vehicl eisinmotion. There is a
ris kofp oisoning.
Alway sswitch off the engine before opening
the trun klid.N ever drive with the trun klid
open.
!The trun klid swing supwar ds when opened.
Therefore,m akes uret hatt hereiss ufficient
clearance above the trun klid.
The opening dimensions of the trun klid can be
found under "Vehicle data" (
Ypage 320).
Opening
Yo uc an open the trun klid from the driver's seat
when the vehicl eisstationar yand unlocked.
80Trunk
Opening and closing

sure fluctuations in the vehicle interior.
Change the position of the sliding sunroof or
openaside window slightly to reduce or elim-
inate these noises.
Sliding sunroof reversing feature
In the following section, the term "sliding sun-
roof" refers to the panorama roof with power
tilt/sliding panel.
The sliding sunroof is equipped with an auto-
matic reversing feature. If asolid object blocks
or restrictst he sliding sunroof during the closing
process, the sliding sunroof opens againa uto-
matically.H owever, the automatic reversing
feature is only an aid and does not relieve you of
the responsibility of paying attention when clos-
ing the sliding sunroof.
GWARNING
The reversing feature does not react:
Rto soft, light and thin objects, e.g. small fin-
gers
Rover the last 1/6 in (4 mm) of the closing
movement
Rduring resetting
Rwhen closing the sliding sunroof againm an-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is arisk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rrelease the switch immediately,o r
Rpress the switch in any direction during the
automatic closing process
The closing process is stopped.
Operating the panoramar oof with
power tilt/sliding panel
Opening and closing
:To raise
;To open
=To close/lower
The panorama roof with power tilt/sliding panel
can only be operated when the roller sunblind is
open.
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 122).
XPress or pull the 3switch in the corre-
sponding direction.
If you press/pull the 3switch beyond the
point of resistance, automatic operation is star-
ted in the corresponding direction. You can stop
automatic operation by pressing/pulling the
switch again.
After opening the sliding sunroof, the roller sun-
blind closes slightly automatically. This reduces
drafts in the vehicle interior.
If the sliding sunroof is raised at the rear, it low-
ers slightly automatically at higher speeds. The
noise level in the vehicle interior is reduced as a
result.
At low speeds it raises againa utomatically.
You can also temporarily deactivate automatic
lowering. To do so, press the 3switch. The
sliding sunroof raises againa utomatically.
You can continue to operate the sliding sunroof
after switching off the engine or removing the
SmartKey from the ignition lock. This function
remains active for five minutes or until you open
af ront door.
The sliding sunroof cannot be opened if aroof
carrier is installed. In order to allow ventilation
of the vehicle interior, you can raise the sliding
sunroof.
86Panoramar oof with power tilt/sliding panel
Opening and closing

Correct driver's seat position
GWARNING
You coul dlose control of your vehicle if you do
th ef ollowingw hile driving:
Radjust thedriver'ss eat,head restraint,
steering wheel or mirrors
Rfasten th eseat belt
Thereisar iskofana ccident.
Adjust th edriver'ss eat,head restraint ,steer-
ing wheel and mirror and fasten your seat belt before starting th eengine.
Observ ethe followingw hen adjusting steering
wheel :,seat belt ;and driver'ss eat=:
Ryou are as far away from th edriver'sa ir bag as
possible
Ryou are sittin ginanormalupright position
Ryour thighs are slightly supported by th eseat
cushion
Ryour legs are no tentirely stretched and you
can depress th epedals properly
Rtheb ack of your head is supported at eye level
by th ecente roft hehead restraint
Ryou can hold th esteering wheel withy our
arm sslightly bent
Ryou can mov eyour legs freely
Ryou can see all th edisplays in th einstrument
cluste rclearly
Ryou should have agood overview of traffic
conditions
Rth es eat belt is pulled snugly against th ebody
and is routed across th ecente rofy our shoul-
der and across your hips in th epelvic area
Further related subjects:
RAdjustin gthe seatsm anually (Ypage 91)
RAdjustin gthe seatse lectrically
(Ypage 92)
RAdjustin gthe steering wheel manually
(Ypage 95)
RFastenin gthe seat belt correctly
(Ypage 44)
RAdjustin gthe rear-view mirror and exterior
mirror s(Ypage 96)
RVehicles with amemory function: saving
th es eat,s teering wheel and exterior mirror
settings usingt hememory function
(
Ypage 99)
Seats
Important safety notes
GWARNING
Children coul dbecome trapped if they adjust
th es eats, particularly when unattended.
Thereisar iskofi njury.
When leaving th evehicle ,always tak ethe
SmartKey withy ou and lockthevehicle .Never
leave childre nunsupervised in th evehicle.
The seatsc an still be adjusted when there is no
SmartKey in th eignition lock.
GWARNING
When you adjust aseat,y ou or other vehicle
occupants coul dbecome trapped, e.g .onthe
seat guide rail. Thereisar iskofi njury.
Makes ure when adjusting aseat that no one
has any body part sinthesweep of th eseat.
Observ ethe safety note son"Air bags"
(
Ypage 45 )and "Children in th evehicle"
(Ypage 54).
GWARNING
If th edriver'ss eat is no tengaged,itc ould
mov eunexpectedly while th evehicle is in
90Seats
Seats, steerin gwheel and mirrors

motion. This could cause you to lose control ofthe vehicle. There is arisk of an accident.
Always make sure that the driver'ss eat is
engagedb efore starting the vehicle.
GWARNING
You could lose control of you rvehicleify ou do
the following while driving:
Radjust the driver'ss eat, head restraint,
steering wheelorm irrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver'ss eat, head restraint, steer-
ing wheela nd mirror and fasten you rseat belt
before starting the engine.
GWARNING
If you adjust the seat height carelessly,y ou or
other vehicleo ccupants could be trappeda nd
thereby injured. Children in particular could
accidentally press the electricals eat adjust-
ment buttons and become trapped. There is a
risk of injury.
Whilem oving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
!To avoidd amage to the seats and the seat
heating, observe the following information:
Rkeep liquid sfrom spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should als onot be used to dry the seats.
Rclean the seat covers as recommended;
see the "Interior care" section.
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nail sortools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als ,e.g. blankets, coats, bags ,seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwellu nder or behind the seats when mov-
ing the seats back. There is arisk that the
seats and/or the objects could be damaged.
iFurther related subjects:
Rcargo compartment enlargement (folding
down the rear seats) (Ypage 240)
Adjusting the seats manually
Vehicles without the seating comfort
package
Seat fore-and-aft adjustment:
XLift handle :and slidet he seat forwards or
backwards.
XRelease lever :again.
Make sure that you hear the seat engage in
position.
Backrest angle:
XRelieve the pressure on the backrest.
XTurn handwheel =forwards or backwards.
Seat height:
XPullh andle ;upwards or push it down
repeatedly until the seat has reachedt he
desired height.
Seats91
Seats, steering wheel and mirrors
Z

Vehicles with the seatingcom fort pack-
age
Sea tfore-and-aft adjustment:
XLif th andle :and slid ethe sea tforward sor
rearwards.
XReleas elever : again.
Make sure thaty ouhea rthe sea tengage in
position.
Backrest angle:
XRelieve the pressure on the backrest.
XTurn handwheel Aforward sorbackwards.
Sea theight:
XPull handle ?upwards or push it down
repeatedly unti lthe sea thas reachedt he
desired height.
Sea tcushion angle:
XAdjust the angle so thaty ourthighs are lightly
supported.
XTurn handwheel =forward sorbackwards.
Sea tcushion length:
XLifth andle ;and slid ethe front part of the
sea tcushion forward sorbackwards.
XReleas elever ; again.
The sea tcushion engages.
Adjustin gthe seats electrically
:Sea theight
;Sea tcushion angle
=Sea tfore-and-aft adjustment
?Backrest angle
iYo uc an storet he seatsettings using the
memory functio n(Ypage 99).
Adjustingthe hea drestraints
Important safety notes
GWARNING
Yo uc ould lose controlofy ourvehicl eifyoudo
the following whil edriving:
Radjus tthe driver'ss eat, headrestraint,
steering whee lormirrors
Rfasten the sea tbelt
There is ariskofana ccident.
Adjust the driver'ss eat, headrestraint, steer-
ing whee land mirror and fasten your sea tbelt
before starting the engine.
GWARNING
If the hea drestraints are not installe dornot
adjusted correctly, they canno tprovid epro-
tection as intended. There is an increased risk
of injury in the hea dand neck area, e.g .inthe
event of an accident or when braking.
Alway sdrive with the hea drestraints instal-
led. Before driving off, make sure for every
vehicl eoccupant thatt he centerofthe head
restraint supports the back of the hea dat
aboute yelevel.
92Seats
Seats, steering wheel andmirrors

Problems with the seat heating
ProblemPossible causes/consequences andMSolutions
The seat heating has
switched off prematurely
or cannot be switched
on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will switch
back on automatically.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint,s teer-
ing wheel and mirror and fasten your seat belt before startin gthe engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is arisk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
Adjusting the steering wheel
GWARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is arisk of an
accident.
Before startin goff, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
:Release lever
;Adjustst he steering wheel height
=Adjuststhe steering wheel position (fore-
and-aft adjustment)
XPush release lever :down completely.
The steering column is unlocked.
XAdjust the steering wheel to the desired posi-
tion.
XPush release lever :up completely.
The steering column is locked.
XCheck if the steering column is locked. When
doing so, try to push the steering wheel up or down or try to move it in the fore-and-aft
direction.
Steering wheel95
Seats, steering wheela nd mirrors
Z

Mirrors
Rear-view mirror
XAnti-glare mode:flick anti-glare lever :for-
wards or back.
Exterior mirrors
Adjusting the exterior mirrors
GWARNING
You coul dlose control of you rvehicleify ou do
the following while driving:
Radjust the driver's seat, headr estraint,
steering wheelorm irrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, headr estraint, steer-
ing wheela nd mirror and fasten you rseat belt
before starting the engine.
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you coul dmisjudge the dis-
tance from road users traveling behind, e.g.
when changing lane .There is arisk of an acci-
dent.
For this reason, alway smake sure of the
actua ldistance from the road users traveling
behind by glancing over you rshoulder.
XTurn the SmartKey to position 1or2 in the
ignitio nlock (Ypage1 22).
XExterior mirror on the front-passenger side:
press button ;.
Exterior mirror on the driver's side:p ress but-
ton :.
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected exterior
mirror using button =as long as the indicator
lamp is lit.
XPress button =up, down, or to the right or
left until you have adjusted the exterior mirror
to the correct position. You should have a
good overview of traffic conditions.
The convex exterior mirrors provide alarger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated at low outside
temperatures. Heating takes amaximu moften
minutes.
iYou can als oheatu pthe exterior mirrors
manually by switching on the rear window
defroster.
96Mirrors
Seats, steering wheel and mirrors

Exteriorlighting
General notes
For reasonsofs afety, Mercedes-Ben zrecom-
mends that you driv ewith th elightss witched on
even durin gthe daytime. In somec ountries,
operatio noftheheadlamps varies due to legal
requirement sand self-imposedo bligations.
Settingthe exterio rlighting
Settin goptions
Exterior lighting can be set usingt he:
Rlight switch
Rcombinatio nswitch (Ypage 101)
Ron-board compute r(Ypage 187)
Light switch
Operation
1WLeft-hands tanding lamps
2 XRight-hand standing lamps
3TParking lamps ,licens eplatea nd
instrumen tcluste rlighting
4 ÃAutomatic headlampm ode, controlled
by th elight sensor
5LLow-beam/high-beam headlamps
B RRear fog lamp
If you hear awarning tone when you leave the
vehicle ,the lightsm ay still be switched on.
XTurn thelight switch to the Ãposition.
The exteriorl ighting (excep tthe parking/stand-
ing lamps )switches off automaticall yifyou:
Rremove th eSmartKey from th eignition lock
Ropen th edriver'sd oor with th eSmartKey in
position g
Automatic headlamp mode
Ãis thepreferred light switch position:
RThe light settin gisautomaticall yselected
according to th ebrightnes softheambient
light (exception: poor visibilityd ue to weather
conditionss uchasfog,sno wors pray).
RWiththeSmartKey in position 1in th eigni-
tio nlock: th eparking lamps are switched on
or off automaticall ydependingont hebright-
nes soft heambient light.
RWitht heengine running: if you have activated
the DaytimeR unningLightsfunction via
th eo n-board computer, th edaytime running
lamps or th eparking lamps and th elow-beam
headlamps are switched on or off automati-
cally dependingont hebrightnes softheambi-
ent light.
XTo switch on th eautomatic headlamp
mode: turnthe light switch to the Ãposi-
tion.
GWARNING
When th elight switch is set to Ã,thelow-
beam headlamps may no tbeswitched on
automaticall yifthere is fog ,sno woro ther
causes of poor visibilityd ue to theweather
conditionss uchasspray. Thereisar isk of an
accident.
In suchs ituations,tur nt he light switch to
L.
The automatic headlampf eature is only an aid.
The driver is responsible for th evehicle's light-
ing at all times.
Canada only:
The daytime runnin glamps improve th evisibility
of your vehicle durin gthe day. The daytime run-
nin glamps function is required by law in Can-
ada. It canno tthe refore be deactivated.
When th eengine is runnin gand th evehicle is
stationary: if you shiftt heautomatic transmis-
sion from adriving position to position jthe
daytime runnin glamps or low-beam headlamps
go out after 3minutes.
When th eengine is running, th evehicle is sta-
tionar yand in bright ambient light:ify ou turnthe
light switch to the Tposition,t hedaytime
runnin glamps and parking lamps tur non.
If th eengine is runnin gand you tur nthe light
switch to the Lposition,t hemanual settings
100Exterior lighting
Lightsa nd windshield wipers