2018 MERCEDES-BENZ CLA COUPE door lock

Interior lighting control
General notes
In order to preven tthe vehicle's battery from
discharging ,the interio rlighting function sare
automatically deactivated after som etime
except when th eSmartKey is in position 2in
th ei gnition lock.
The color and brightness for th eambien tlighting
may be set via th emultimedia system; see th e
separat eoperating instructions.
Automati cinterior lighting control
XTo switch on: set theswitch to center posi-
tion B.
XTo switch off :set th eswitch to th e|
position .
The interio rlighting automatically switches on if
you:
Runlock th evehicl e
Ropen adoor
Rremove th eSmartKey from th eignition loc k
The interio rligh tisa ctivated for ashort while
when th eSma rtKey is remove dfromt heignition
lock. This delaye dswitch-off can be adjusted via
th em ultimedia system; see th eseparat eoper -
ating instructions.
Replacin gbulbs
Important safety notes
GWARNIN G
Bulbs, lamp sand connectors can get ver yhot
when operating .Ifyou chang eabulb, you
could burn yourself on these components.
Ther eisar iskofi njury.
Allow these component stocooldown before
changing abulb.
Do no tuse ab ulb if it has been dropped or if it s
glass tub ehas been scratched.
The bulb may explod eif:
Ryou touch it
Rit is hot
Ryou dro pit
Ryou scratch it Use bulbs only in closed lamp
sthath aveb een
designed for this purpose .Onlyi nstal lspar e
bulbs of th esam etypea nd th especifie dvolt-
age.
Mark sont heglass tub ereduce th eservic elife
of th ebulbs .Don ottouch th eglass tub ewith
your bare hands. If necessary, clean th eglass
tub ew hen cold wit halcohol or spirit and rub it
off wit halint-free cloth .
Protect bulbs from moisture during operation .
Do no tallow bulbs to come int ocontac twith
liquids.
Replac eonlyt he bulbs listed (
Ypage 104).
Hav ethe bulbs that you canno tchang ey ourself
replace dataq ualified specialist workshop.
If you require assistanc ereplacing bulbs ,con -
sult aqualified specialist workshop.
If th enew bulb still does no tligh tup, consult a
qualified specialist workshop.
Headlamps and lights are an important aspect of
vehicl esafety. You must therefor emakes ure
that these function correc tl
y
ata ll times .Have
th eh eadlamp setting checke dregularly.
Vehicles with LED headlamps: thef ront and
rear lamp clusters of your vehicl eare equipped
wit hL ED bulbs .Don otreplace th ebulbs your-
self .Contac taqualified specialist workshop
wit hthe necessar yspecialist knowledge and
tools to carry out th eworkr equired.
Overview of bul btypes
You can replace th efollowin gbulbs .The bulb
typ ecan be foun dinthelegend .
104Replacingb ulbs
Lightsand windshield wipers

!Do not warm up the engine with the vehicle
stationary. Drive off immediately.A void high
engine speeds and driving at full throttle until
the engine has reached its operating temper- ature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible,a void spinning the drive
wheels when pulling awayons lippery roads.
You could otherwise damage the drive train.
!Mercedes-AMG vehicles: avoid full-load
operation and engine speeds greater than
5000 rpm when the engine is cold. This helps
to protect the engine and avoids uncomfort-
able driving.
Key positions
SmartKey
gTo remove the SmartKey
(shift the transmission to position j)
1Power supplyfor some consumers, such as
the windshieldw ipers
2Ignition (power supplyf or all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
Start/Stop button
General notes
Vehicles with KEYLESS-GO are equipped with
SmartKeys featuring the integrated KEYLESS-
GO function and adetachable Start/Stop but-
ton.
Ac heck which periodically establishes aradio
connection between the vehicle and the Smart-
Key determines whether avalid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock
Rthe SmartKey must be in the vehicle
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO (Ypage 71)
Do not keep the KEYLESS-GO key:
Rwith electronic devices, e.g. amobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. ametal case.
This can affect the functionality of KEYLESS-GO.
If you lock the vehicle with the SmartKey remote
control or with KEYLESS-GO, after ashort time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the button
on the front door (
Ypage 76), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
122Driving
Driving and parking

operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with the Start/Stop button
:Start/Stop button
;Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up.
For further information on situations in which an indicator lamp either fails to go out after the
engine is started or lights up while driving,
please refer to "Warning and indicator lamps in
the instrument cluster" (
Ypage 219).
If Start/Stop button :has not yet been
pressed, this is the same as the SmartKey being
removed from the ignition.
XTo switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now
activate the windshield wipers, for example.
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button :twice when in
this position
XTo switch on the ignition: press Start/Stop
button :twice.
The ignition is switched on.
If you press Start/Stop button :once when
in this position, the ignition is switched off
again.
Removing the Start/Stop button
You can remove the Start/Stop button from the ignition lock and start the vehicle as normal
using the SmartKey.
You can only switch between Start/Stop button
mode and SmartKey operation when the vehicle
is stationary. You must also engage park position
j.
XRemove Start/Stop button:from ignition
lock ;.
You do not have to remove the Start/Stop but-
ton from the ignition lock when you leave the
vehicle. You should, however, alwayst ake the
SmartKey with you when leaving the vehicle. As
long as the SmartKey is in the vehicle:
Rthe vehicle can be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Starting the engine
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an accident and injury.
When leaving the vehicle, alwayst ake the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefore never leave
the engine runningine nclosed spaces with-
out sufficient ventilation.
Driving123
Driving and parking
Z

GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heatu p. There isarisk
of fire.
Carry out regular checks to make sure that
there are no flammable foreignm aterials in
the engine compartment or in the exhaust
system.
General notes
During acold start, the engine runs at higher
speeds to enabl ethe catalytic converter to
reach its operating temperature. The sound of
the engine may change during this time.
Automatic transmission
XShift the transmission to position j
(Ypage1 30).
The transmission position display in the mul-
tifunction display shows P(
Ypage1 30).
iYou can start the engine in transmission
position jand i.
Starting procedure with the SmartKey
To start the engine using the SmartKey instead
of the Start/Stop button, pul lthe Start/Stop
button out of the ignitio nlock.
XTurn the SmartKey to position 3in the igni-
tion lock (Ypage1 22) and release it as soon
as the engine is running.
Starting procedure with the Start/Stop
button
The Start/Stop button can be used to start the
vehiclem anually without inserting the SmartKey
into the ignitio nlock. The Start/Stop button
must be inserted in the ignitio nlock and the
SmartKey must be in the vehicle. This mode for
starting the engine operates independently of
the ECO start/stop automatic engine start func-
tion.
You can start the engine if avalidS martKey is in
the vehicle. Switch off the engine and always
take the SmartKey with you when leaving the vehicle, even if you only leave it for
ashort time.
Pay attention to the important safety notes.
XDepress the brake pedala nd keep it
depressed.
XPress the Start/Stop button once
(Ypag e122).
The engine starts.
Starting procedure via smartphone
Observe the important safety notes on starting
the engine (Ypag e123).
You can als ostart you rengine via you rsmart-
phone from outside the vehicle. In this case, the
previousl yselected climate control setting is
activated. In this way you can cool or heat the
interior of the vehicleb efore starting the jour-
ney.
Only start the engine via you rsmartphone if it is
safe to start and run the engine where you rvehi-
cle is parked.
Observe the legals tipulations in the area where
you rvehicleisp arked.Engine start via smart-
phone may be limited to certain countries or
regions.
You can execute amaximu moftwo consecutive
starting attempts via you rsmartphone. If you
insert the SmartKey into the ignitio nlock, you
can carry out two more starting attempts.
Once you have started the engine, you can
switch the engine off via you rsmartphone at any
time.
You can only start the engine via you rsmart-
phone if:
Rthe SmartKey is in the ignitio nlock
Rpark position jis selected
Rthe accelerator pedalisn ot depressed
Rthe anti-theft alarm system is not activated
Rthe panicalarm is not activated
Rthe hazard warning lamp sare switched off
Rthe hood is closed
Rthe doors are closed and locked
Rthe windows and sliding sunroof are closed
Also make sure that:
Rthe fuel tank is sufficiently filled
Rthe starter battery is sufficiently charged
GWARNING
Limbs coul dbecrushedortrappe difthe
engine is started unintentionally during ser-
124Driving
Driving and parking

vice or maintenance work. There isarisk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started via
you rsmartphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via you rsmartphone, for example, if you:
Rswitch on the hazard warning lamps
Rdo not lock the doors
Ropen the hood
Pulling away
General notes
GWARNING
If the engine speedisa bove the idling speed
and you engage transmission position Dor R,
the vehiclec ould pullawa ysuddenly.T here is
ar isk of an accident.
When engaging transmission position Dor R,
alway sfirmly depress the brake pedala nd do
not simultaneously accelerate.
Depress the accelerator carefully when pulling
away.
The vehiclel ocks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the insid eatany
time.
You can als odeactivate the automatic locking
feature (
Ypag e187).
It is possible to shift the transmission from posi-
tion jto the desired position only if you
depress the brake pedal. Only then can the
parking lock be deactivated.
All vehicles (except Mercedes-AMG vehi-
cles): if you do not depress the brake pedal, the
DIRECT SELECT lever can still be moved but the parking lock remains engaged.
Mercedes-AMG vehicles: if you do not depress
the brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission flui dtemperatures below Ò4‡
(Ò20†), you can only shift out of position jinto another transmission position when the engine
is running.
iUpshifts take place at highere
ngine speeds
after acold start. This helpst he catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake (
Ypag e143).
Hill start assist
Hill start assist helpsy ou when pulling away
forward or in reverse on an uphill gradient. It
holdst he vehiclef oras hort time after you have
removed you rfoot from the brake pedal. This
gives you enoug htime to move you rfoot from
the brake pedaltot he accelerator pedala nd to
depress it before the vehicleb egins to roll.
GWARNING
After ashort time, hill start assist wil lnolon-
ger brake you rvehiclea nd it coul droll away.
There is arisk of an accident and injury.
Therefore, quickly move you rfoot from the
brake pedaltot he accelerator pedal. Never
leave the vehiclew hen it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling awa yonalevel road or on a
downhill gradient.
Rthe transmission is in position i.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
Further information on holding the vehicles ta-
tionary on uphill gradients (
Ypag e134).
ECOs tart/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicleiss topped
under certain conditions.
The engine starts automatically when the driver
wants to pul lawa ya gain. The ECO start/stop
function thereby helpsy ou to reduce the fuel
consumptio nand emissions of you rvehicle.
Driving125
Driving and parking
Z

At transmission fluid temperaturesbelow Ò4‡
( Ò20 †),y oucan onlys hift outofp arkp osition
j into another transmission positio nwhent he
engine is running.
In order to shift from park position jdirectly
into korh:
Rdepress the brake peda land
Rpush the DIRECT SELECTl ever up or down
past the first point of resistance
Engagin gpark position Pautomatically
Park position jis automaticall yengaged if:
Ryous witch off the engine using the SmartKey
and remove the SmartKey
Ryo us witch off the engine using the SmartKey
or using the Start/Stop button and open the
driver's door or front-passenger door
Ryo uo pent he driver's door when the vehicl eis
stationar yorwhend riving at averyl ow speed
and the transmission is in position hork
Unde rcertain conditions, the automatic trans-
mission shifts to transmission position jauto-
maticall yifthe HOLD functio norDistance Pilot
DISTRONICi sactivated.O bservethe informa-
tio nont he HOLD functio n(
Ypage 157)and
Distance Pilo tDISTRONIC(Ypage 154).
Engagin grevers egearR
!Onlym ove the automatic transmission to
k when the vehicl eisstationary.
XDepres sthe brake and kee pitpressed.
XPush the DIRECT SELECTl ever up past the
first point of resistance.
The ECO start/stopf unctio nisn ot available
when revers egearise ngaged .Further informa-
tio nont he ECO start/stopf unction
(
Ypage 126).
Shiftin gtoneutral N
GWARNING
If children ar eleftu nsupervised in the vehicle,
they could:
Ropen the doors,t husendangering other
people or roadu sers.
Rget outa nd disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicl ein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission outo f
park position P
RStartthe engine.
There is ariskofana ccident and injury.
Whe nleavi ng the vehicle, always take the
SmartKeyw ithy ou and lock the vehicle. Never
leav echildren or animals unattended in the
vehicle. Alway skeept he SmartKeyo utof
reach of children.
XIf the transmission is in position hork:
push the DIRECT SELECTl ever up or down to
the first point of resistance.
XIf the transmission is in position j:depress
the brake peda land push the DIRECT SELECT
lever up or down to the first point of resist-
ance.
If yo uswitch the engine off with the transmis-
sion in position korh,t he automatic trans-
mission shifts to iautomatically.
With the SmartKey: if youthen open the driv-
er' sd oorort he front-passenger door or remove
the SmartKeyf rom the ignition, the automatic
transmission shifts to jautomatically.
With the Start/Stopb utton:if youthen open
the driver's door or the front-passenger door,
the automatic transmission shifts to jauto-
matically.
If yo uwantthe automatic transmission to
remai ninneutral i,e.g.w he
n
h aving the vehi-
cle cleane dinanautomatic car wash with a
towing system:
XVehicles with the Start-Stop button:
remove the Start-Stop button from the igni-
tio nlock.
XInsert the SmartKeyi nto the ignition lock.
XAllv eh icles: switch the ignition on.
XDepres sthe brake peda land kee pit
depressed.
XEngage neutral i.
XReleasethe brake pedal.
XReleas ethe electri cparking brake.
XSwitch off the ignition and leav ethe SmartKey
in the ignition lock.
Automatict ransmission131
Driving andparking
Z

You must make sure that fuel does not comeint oc ontac twith your skin ,eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors.K eep fuel away from children.
If you or others com eintoc ontac twith fuel,
observet he following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes int ocontac twith your eyes,
immediately rinse the mthoroughly with
clean water. Seek medical assistanc ewith-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induc evomit-
ing.
RImmediately change out of clothing which
has com eintoc ontac twith fuel.
GWARNING
Electrostatic buildup can create sparksa nd
ignit efuel vapors.T here isarisk of fire and
explosion.
Always touc hthe vehicle body beforeo pening
the fuel filler flap or touching the fuel pump
nozzle. An yexisting electrostatic buildup is
thereby discharged.
!Do not use diesel to refuel vehicles with a
gasolinee ngine. Do not switc honthe ignition
if you accidentally refuel with the wrongf uel.
Otherwise, the fuel will enter the fuel system. Even small amount softhe wrongf uel could
result in damage to the fuel syste mand the
engine. Notify aqualified specialis tworkshop
and have the fuel tan kand fuel lines drained
completely.
!Overfilling the fuel tan kcould damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Use afilter when adding fuel from afuel can.
The fuel lines and/or the fuel injection system
could otherwise be blocked by particles from
the fuel can. Do not get int
othe vehicle again during the refu-
eling process. Otherwise, electrostatic charge
could build up again.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(
Ypage 315).
Refueling
Genera linformation
Pay attention to the importan tsafetyn otes
(Ypage 138).
The fuel filler flap is unlocked/locked automat-
ically when you unlock/lock the vehicle with the
SmartKey.
The position of the fuel filler cap is displayed
æ in the instrumentc luster. The arrow on the
filling pump indicates the side of the vehicle.
Opening th efuel filler flap
:To open the fuel filler flap
;Tire pressure table
=To inser tthe fuel filler cap
?Instruction label for fuel type to be refueled
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS‑ GO
XOpen the driver's door.
The vehicle electronics are now in position
g.This is the same as the SmartKey being
removed from the ignition.
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
Refueling139
Driving and parking
Z

XTurn the fuel filler cap counterclockwise and
remove it.
XInsert the fuel filler cap into the holder on theinside of fuel filler flap =.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank ,hook in place and
refuel.
XOnly fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump stops
filling for the first time. Otherwise, fuel may leak
out.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap. Close the fuel filler flap before lockingt
he vehi-
cle.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. Ames-
sage appears in the multifunction display
(
Ypage 206).
In addition, the ;Check Engine warning
lamp may light up (
Ypage 224).
For further information on warning and indicator
lamps in the instrument cluster, see
(
Ypage 224).
Problems with fuel and the fuel tank
ProblemPossible causes/consequences and MSolutions
Fuel is leaking from the
vehicle.The fuel line or the fuel tank is faulty.
GWARNING
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The vehicle electronics are now in positiong.This is the same as
the SmartKey being removed from the ignition.
XDo not restart the engine under any circumstances.
XConsult aqualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 70).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 77).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult aqualified specialist workshop.
140Refueling
Driving and parking