2018 MERCEDES-BENZ CLA COUPE fuel fill door release

SmartKey
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, always take 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
If you attach heavy or large object stothe
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a risk of an accident.
Do not attach any heavy or large object stothe
SmartKey. Remove any bulky key rings before
insertingt he SmartKey into the ignition lock.
!Keep the SmartKey away from stron gmag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey:
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
Vehicles with KEYLESS-GO startf unction:do
not keep the SmartKey in the trunk.O therwise,the SmartKey may not be detected, e.g. when
startin
gthe engine using the Start/Stop button.
SmartKey functions
:& To lock the vehicle
;FTo open the trunk lid
=%To unlock the vehicle
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Ranti-theft protection is reactivated.
XTo lock: press the &button.
The SmartKey centrally locks/unlocks:
Rthe doors
Rthe trunk lid
Rthe fuel filler flap
The turn signals flash once when unlocking and
three times when locking.
When the locator lighting is activated via the
multimedia system, it lights up when it is dark
after the vehicle is unlocked with the remote
control (see the separate operating instruc-
tions).
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (
Ypage 187).
XTo open the trunk lid automatically: press
and hold the Fbutton until the trunk lid
opens (
Ypage 79).
70SmartKey
Opening and closing

Changing thesettings of th elocking
system
You can chang ethe settings of th elockin gsys-
tem. This mean sthato nlyt he driver'sd oor and
th ef uel fille rflap are unlocked when th evehicle
is unlocked. This is useful if you frequently travel
on your own.
XTo change th esetting: pressand hold the
% and& buttons simultaneouslyf or
approximately six seconds until th ebattery
indicator lamp flashes twice (
Ypage 73).
If th esettin goft helockin gsystem is changed
within th esignal range of th evehicle ,pressing
the & or% button:
Rlocks or
Runlock sthe vehicle
The SmartKey no wfunctionsasf ollows:
XTo unlock:pressthe % buttononce.
XTo unlock centrally: pressthe % button
twice.
XTo lock centrally: pressthe & button.
The KEYLESS-GO function is changed as fol-
lows:
XTo unlock th edriver's door: touch theinner
surface of th edoor handle on th edriver's
door.
XTo unlock centrally: touch theinner surface
of th edoor handle on th efront-pa ssenger
door or th erear door.
XTo lock centrally: touch theouter sensor
surface on oneoft hedoor handles.
XTo restor ethe factor ysettings: pressand
hold the %and& buttons simultane-
ously for approximately six seconds until the
battery check lamp flashes twi ce
(
Ypage 73).
Mechanica lkey
General notes
If th evehicle can no longer be locke dor
unlocked witht heSmartKey or KEYLESS-GO,
use th emechanical key.
If you use th emechanical ke ytou nlock and
open th edriver'sd oor or th etrunk lid, th eanti-
theft alarm system will be triggered (
Ypage 68). Therea
re several ways to tur noff th ealarm:
XTo deactivat ethe alarm with th ekey: press
the % or& buttonont hekey.
or
XInsertt heSmartKey int othe ignition lock.
or
XTo deactivat ethe alarm with KEYLESS-GO:
pres sthe Start/Sto pbutto nint heignition
lock. The SmartKey must be in th evehicle.
or
XLockoru nlock thevehicle usingK EYLESS-
GO. The SmartKey must be outside th evehi-
cle.
If you unlock th evehicle usingt hemechanical
key, th efuel fille rflap will no tbeunlocked auto-
matically.
XTo unlock th efuelfille rflap: insert the
SmartKey int othe ignition lock.
Removing th emechanica lkey
XPush release catch :in th edirection of the
arrow and at th esame tim eremove mechan-
ical key ;from th eSmartKey.
For further informatio nabout:
RUnlockin gthe driver'sd oor (Ypage 77)
RUnlockingthe trunk (Ypage 81)
RLockin gthe vehicle (Ypage 77)
Insertin gthe mechanica lkey
XPush mechanical key ;completely int othe
SmartKey until it engages and release
catch :is back in its basic position.
72SmartKey
Opening and closing

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

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