MERCEDES-BENZ CLA-Class 2017 C117 Manual PDF

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 a risk 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 objects to the
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 objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong mag-
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. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case
Vehicles with KEYLESS-GO start function: do
not keep the SmartKey in the trunk. Otherwise, the SmartKey may not be detected, e.g. when
starting the 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 185).
XTo open the trunk lid automatically: press
and hold the Fbutton until the trunk lid
opens (
Ypage 78).
SmartKey69
Opening and closing
Z

KEYLESS-GO
Gene ral notes
Bear in min dthat th eengin ecan be started by
any of th evehicl eoccupant sif there is aSmart -
Key in th evehicle.
Locking and unlocking
You can start ,loc kor unloc kth evehicl eusin g
KEYLESS-GO .To do this, you only need carry th e
SmartKey wit hyou. You can combine th efunc-
tion sof KEYLESS-GO wit hthose of aconven -
tional SmartKey. Unloc kth evehicl eby usin g
KEYLESS-GO ,for instance ,and loc kit usin gth e
& buttonon th eSmartKey.
The driver's door and th edoor at whic hth ehan -
dle is used ,mus tbot hbe closed. The SmartKey
mus tbe outside th evehicle. Whe nlocking or
unlocking wit hKEYLESS-GO ,th edistanc e
between th eSmartKey and th ecorresponding
door handle mus tno tbe greate rthan 3ft (1 m).
A chec kwhic hperiodically establishes aradi o
connection between th evehicl eand th eSmart -
Key determine swhether avalid SmartKey is in
th evehicle. This occurs, for example:
Rwhen starting th eengin e
Rwhile drivin g
Rwhen usingHANDS-FRE EACCESS
Rwhen th eexternal door handles are touched
Rduring convenience closin g
XTo unlock thevehicle: touch theinner sur -
fac eof th edoor handle.
XTo lock th evehicle: touch sensor surfac e:
or ;. Mak
esur ethat you do no ttouch th einner
surfac eof th edoor handle.
XConvenienc eclosin gfeature: touch
recessed sensor surfac e; for an extended
period.
Further information on th econvenience clos-
ing feature (
Ypage 82).
XTo unlock th etrunk lid :pull trunk lid han -
dle :.
Deactivating and activating
If you do no tinten dto use th evehicl efor alon -
ger period of time, you can deactivat eKEYLESS -
GO. The SmartKey will then use ver ylittl epower,
thereby conserving battery power. Fo rth epur-
poses of activation/deactivation ,th evehicl e
mus tno tbe nearby.
XTo deactivate: press the& buttonon th e
SmartKey twice in rapi dsuccession .
The battery chec klamp of th eSmartKey
flashes twice briefl yand lights up once ,then
KEYLESS-GO is deactivated (
Ypage 72).
XTo activate:press any butto non th eSmart -
Key.
or
XInser tth eSmartKey int oth eignition lock.
KEYLESS-GO and all of it sassociated features
are available again .
KEYLESS-GOstart function
Gene ral notes
Bear in min dthat th eengin ecan be started by
any of th evehicl eoccupant sif there is aSmart -
Key in th evehicle.
70SmartKey
Opening and closing

Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle
is unlocked. This is useful if you frequently travel
on your own.
XTo change the setting:press and hold the
% and& buttons simultaneously for
approximately six seconds until the battery
indicator lamp flashes twice (
Ypage 72).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
Rlocks or
Runlocks the vehicle
The SmartKey now functions as follows:
XTo unlock: press the%button once.
XTo unlock centrally: press the%button
twice.
XTo lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
XTo unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
XTo unlock centrally: touch the inner surface
of the door handle on the front-passenger
door or the rear door.
XTo lock centrally: touch the outer sensor
surface on one of the door handles.
XTo restore the factory settings: press and
hold the %and& buttons simultane-
ously for approximately six seconds until the
batter
y check lamp flashes twice
(Ypage 72).
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the anti-
theft alarm system will be triggered (
Ypage 67). There are several ways to turn off the alarm:
XTo deactivate the alarm with the key:
press
the % or& button on the key.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-GO: press the Start/Stop button in the ignition
lock. The SmartKey must be in the vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the vehi-
cle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked auto- matically.
XTo unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
XPush release catch :in the direction of the
arrow and at the same time remove mechan- ical key ;from the SmartKey.
For further information about:
RUnlocking the driver's door (Ypage 76)
RUnlocking the trunk (Ypage 80)
RLocking the vehicle (Ypage 76)
Inserting the mechanical key
XPush mechanical key ;completely into the
SmartKey until it engages and release
catch :is back in its basic position.
SmartKey71
Opening and closing
Z

SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatalinjury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National guide-
lines must be observed during disposal. In Cal-
ifornia, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/index.cfm.
Mercedes-Benz recommends that you have the
battery replaced at a qualified specialist work-
shop.
Checking the battery
XPress the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
XChange the battery (Ypage 72).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the &or% button:
Rlocks or
Runlocks the vehicle
iYou can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the SmartKey
(Ypage 71).
XPress mechanical key ;into the opening in
the SmartKey in the direction of the arrow
until battery tray cover :opens. When doing
so, do not hold cover :shut.
XRemove battery tray cover :.
XRepeatedly tap the SmartKey against your
palm until battery=falls out.
XInsert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth to
do so.
XMake sure that the surface of the battery is
free of lint, grease and other contaminants.
XInsert the front tabs of battery tray cover :
and then press to close it.
XInsert mechanical key into the SmartKey
(Ypage 71).
XCheck the function of all SmartKey buttons on
the vehicle.
72SmartKey
Opening and closing

Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You cannot lock or
unlock the vehicle using
the SmartKey.The SmartKey battery is discharged or nearly discharged.
XVehicles without KEYLESS-GO or KEYLESS-GO start function:
try again to lock/unlock the vehicle using the remote control func-
tion of the SmartKey. Point the tip of the SmartKey at the driver's
door handle from close range and press the %or& button.
If this does not work:
XCheck the SmartKey battery (Ypage 72) and replace it if necessary
(Ypage 72).
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XVehicles without KEYLESS-GO or KEYLESS-GO start function:
try again to lock/unlock the vehicle using the remote control func-
tion of the SmartKey. Point the tip of the SmartKey at the driver's
door handle from close range and press the %or& button.
If this does not work:
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
The SmartKey is faulty.
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
XHave the SmartKey checked at a qualified specialist workshop.
You can no longer lock or
unlock the vehicle using
KEYLESS-GO.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 72) and replace it if necessary
(Ypage 72).
If this does not work:
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
SmartKey73
Opening and closing
Z

ProblemPossible causes/consequences andMSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of the
SmartKey.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
XUnlock (Ypage 76) or lock (Ypage 76) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 273).
or
XJump-start the vehicle (Ypage 273).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 72) and replace it if necessary
(Ypage 72).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
74SmartKey
Opening and closing

Doors
Important safet ynotes
GWARNING
If children are lef tunsupervised in th evehicle,
they could:
Rope nth edoors ,thus endangerin gother
people or road users.
Rget out and disrup ttraffic .
Roperat eth evehicle' sequipment.
Additionally, children could set th evehicle in
motion if, fo rexample, they:
Rrelease th eparking brake .
Rshiftingth eautomatic transmissio nout of
par kposition P
RStart theengine.
There is aris kof an acciden tand injury.
Whe nleavin gth evehicle, always take th e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren or animals unattended in th e
vehicle. Always keep th eSmartKey out of
reach of children .
You should preferably plac eluggage or load sin
th ecargo compartment. Observ eth eloadin g
guidelines (
Ypage 233).
Unlockingan dopening doors from
th einside
!
The sid ewindows will no topen/close if th e
battery is discharged or if th esid ewindows
hav eiced up. It will then no tbe possible to
close th edoor. Do no tattempt to forc eth e
doo rclosed. You could otherwise damage th e
doo ror th esid ewindow.
Whe n adoo ris opened, th esid ewindow on that
sid eopens slightly. Whe nth edoo ris closed, th e
sid ewindow close sagain .
XTo unlock an dope n afront door: pull door
handle ;.
If th edoo ris locked, locking knob :pop sup.
The doo ris unlocke dand opens .
XTo unlock arear door: pull up locking
knob :.
The doo ris unlocke dand can be opened.
XTo ope n arear door: pull doorhandle ;.
You can ope n adoo rfrom insid eth evehicle
eve nif it has bee nlocked. You can only ope nth e
rea rdoors from insid eth evehicle if they are no t
secure dby th echild-proof locks (
Ypage 59).
If th evehicle has previously bee nlocke dwit h
th eSmartKey from th eoutside, opening adoo r
from th einsid ewill trigger th eanti-thef talar m
system. Switc hof fth ealar m (
Ypage 67).
Centrally locking an dunlocking th e
vehicle from th einside
You can centrall yloc kor unloc kth evehicle from
th einside. Thi scan be useful if you wish to loc k
th evehicle befor epulling away, fo rexample.
XTo unlock :press butto n:.
XTo lock :press butto n;.
If all th edoors and th etrunk lid are closed, th e
vehicle locks .
Doors75
Opening and closing
Z

Meanwhile, the fuel filler flap will not be locked
or unlocked.
You cannot unlock the vehicle centrally from the
inside if the vehicle has been locked with the
SmartKey or KEYLESS-GO.
You can open a door from inside the vehicle
even if it has been locked. You can open the rear
doors from inside the vehicle unless they are
secured by the child-proof lock (
Ypage 59).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a door
from the inside will trigger the anti-theft alarm
system. Switch off the alarm (
Ypage 67).
If a locked door is opened from the inside, the
previous unlock status of the vehicle will be
taken into consideration if:
Rthe vehicle was locked using the locking but-
ton for the central locking, or
Rif the vehicle was locked automatically
The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. If only the driver's
door had been previously unlocked, only the
door which has been opened from the inside is
unlocked.
Automatic locking feature
XTo deactivate: press and hold button :for
approximately five seconds until a tone
sounds.
XTo activate: press and hold button ;for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing. You could therefore lock yourself out if:
Rthe vehicle is being pushed.
Rthe vehicle is being towed.
Rthe vehicle is on a roller dynamometer.
You can also switch the automatic locking func-
tion on and off using the on-board computer
(
Ypage 184).
Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys-
tem will be triggered (
Ypage 67).
XTake the mechanical key out of the SmartKey (Ypage 71).
XInsert the mechanical key into the lock of thedriver's door as far as it will go.
XTurn the mechanical key counter-clockwise
as far as it will go to position 1.
The door is unlocked.
XTurn the mechanical key back and remove it.
XInsert mechanical key into the SmartKey
(Ypage 71).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechanical
key.
XOpen the driver's door.
XClose the front-passenger door, the rear
doors and the trunk lid.
76Doors
Opening and closing

XPress the locking button on the driver’s door
(Ypage 75).
XCheck whether the locking knobs on the
front-passenger door and the rear doors are
still visible. Press down the locking knobs by
hand, if necessary.
XClose the driver's door.
XTake the mechanical key out of the SmartKey
(Ypage 71).
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 position1.
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 71).
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 a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that 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 314).
You should preferably place luggage or loads in
the trunk. Observe the loading guidelines
(
Ypage 233).
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 emergency release from the
inside
Opening/closing from outside
Opening
XPress the %button on the SmartKey.
XPull handle :.
XRaise the trunk lid.
Trunk77
Opening and closing
Z

Closing
XPull down the trunk lid using handle:.
XLet the trunk lid drop into the lock.
XIf necessary, lock the vehicle with the &
button on the SmartKey or with KEYLESS-GO.
Opening automatically from outside
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.
!The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
iThe opening dimensions of the trunk lid can
be found under "Vehicle data" (Ypage 314).
Opening automatically
You can open the trunk lid automatically using
the SmartKey or the handle in the trunk lid.
XPress and hold the Fbutton on the Smart-
Key until the trunk lid opens.
or
XIf the trunk lid is unlocked, pull the trunk lid
handle and let it go again immediately.
HANDS-FREE ACCESS
Important safety notes
GWARNING
The vehicle's exhaust system may be very hot. You could burn yourself by touching the
exhaust system if you use HANDS-FREE
ACCESS. There is a risk of injury. Always
ensure that you only make the kicking move-
ment within the detection range of sensors.
!If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk:
Rusing a car wash
Rusing a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
iYou can also deactivate KEYLESS-GO. Fur-
ther information on deactivating and activat-
ing KEYLESS-GO (
Ypage 70).
General notes
With KEYLESS-GO and HANDS-FREE ACCESS,
you can open the trunk lid without using your
hands. This is useful if you have your hands full. To do this, make a kicking movement under the
bumper with your foot.
Observe the following points:
RCarry your KEYLESS-GO key about your per-
son. The KEYLESS-GO key must be in the rear
detection range of the vehicle.
RWhen making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to the rear of the vehicle. You could otherwise
lose your balance, for example on ice.
78Trunk
Opening and closing