2014 MERCEDES-BENZ CLA trunk

XPush release catchin the direction of
the arrow and at the same time remove
mechanical keyfrom the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 79)
Runlocking the trunk (Ypage 82)
Rlocking the vehicle (Ypage 79)
SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
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
guidelines must be observed during disposal.
In California, seewww.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
Checking the battery
XPress the\norbutton.
The battery is working properly if battery
check lamplights up briefly.
The battery is discharged if battery check
lampdoes not light up briefly.
XChange the battery (Ypage 74).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the\norbutton:
Rlocks or
Runlocks the vehicle
iYou can get a battery at any qualified
specialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the
SmartKey (Ypage 73).
XPress mechanical keyinto the opening
in the SmartKey in the direction of the
arrow until battery tray coveropens.
When doing so, do not hold covershut.
XRemove battery tray cover.
74SmartKey
Opening and closing

XTo unlock a front door:pull door
handle.
Locking knobpops up.
The door is unlocked and can be opened.
XTo open a front door:pull door
handle.
XTo unlock a rear door:pull up locking
knob.
The door is unlocked and can be opened.
XTo open a rear door:pull door handle.
You can open a door from inside the vehicle
evenifithas been locked. You can open the
rear doors from inside the vehicle unless they
are secured by the child-proof lock
(Ypage 60).
If the vehicle has previously been locked with
the SmartKey, openingadoor from the inside
will trigger the anti-theft alarm system.
Switch off the alarm (Ypage 70).
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. This can be useful if you wish
to lock the vehicle before pulling away, for
example.
XTo unlock:press button.
XTo lock:press button.
If all the doors and the trunk lid are closed,
the vehicle locks.
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.
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 60).
If the vehicle has previously been locked with
the SmartKey, openingadoor from the inside
will trigger the anti-theft alarm system.
Switch off the alarm (Ypage 70).
If the vehicle has been locked using the
locking button for the central locking, or has
been locked automatically, and a door is
opened from the inside:
Rthe vehicle will be fully unlocked if it had
previously been fully unlocked
Ronly the door which has been opened form
the inside is unlocked if only the driver's
door had been previously unlocked
78Doors
Opening and closing

Automatic locking feature
XTo deactivate:press and hold button
for about five seconds until a tone sounds.
XTo activate:press and hold buttonfor
about five seconds until a tone sounds.
iIf you press one of thetwo buttons and
do not hear a tone, the relevant setting has
already been selected.
The vehicle is locked automatically when the
ignitionis switched on and the wheels are
turning.
You could therefore lock yourselfout 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
function on and off using the on-board
computer (Ypage 208).
Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theftalarm
system will be triggered (Ypage 70).
XTake the mechanical key out of the
SmartKey (Ypage 73).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
XTurn the mechanical key counter-clockwise
to position.
The door is unlocked.
XTurn the mechanical key back and remove
it.
XInsert the mechanical key into the
SmartKey.
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
XOpen the driver's door.
XClose the front-passenger door, the rear
doors and the trunk lid.
XPress the locking button (Ypage 78).
XCheck whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs manually, if necessary (Ypage 77).
XClose the driver's door.
XTake the mechanical key out of the
SmartKey (Ypage 73).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
Doors79
Opening and closing
Z

XTurn the mechanical key clockwise as far
as it will go to position.
XTurn the mechanical key back and remove
it.
XMake sure that the doors and the trunk lid
are locked.
XInsert the mechanical key into the
SmartKey.
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 persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
!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 in the "Vehicle data" section
(Ypage 351).
You should preferably place luggage or loads
in the cargo compartment. Observe the
loading guidelines (Ypage 254).
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
Runlocked from inside with the mechanical
key
Opening/closing manually from
outside
Opening
XPress thebutton on the SmartKey.
XPull handle.
XRaise the trunk lid.
80Trunk
Opening and closing

Closing
XPull down the trunk lid using handle.
XLet the trunk lid drop into the lock.
XIf necessary, lockthe vehicle with the
\nbutton on the SmartKey.
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.
iOpening dimensions of the trunk lid
(Ypage 351).
Opening
You can open the trunk lid automatically
using the SmartKey or the handle in the trunk
lid.
XPress and hold thebutton on the
SmartKey until the trunk lid opens.
or
XIf the trunk lid is unlocked, pull the trunk lid
handle and let it go again immediately.
Opening automatically from inside
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.
iOpening dimensions of the trunk lid
(Ypage 351).
Opening
You can open the trunk lid from the driver's
seat when the vehicle is stationary and
unlocked.
XTo open:pull remote operating switch for
trunk liduntil the trunk lid opens.
Trunk81
Opening and closing
Z

Emergency release
If the trunk lid can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the trunk lid.
!The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
iThe opening dimensions of thetrunk lid
can be found in the "Vehicle data" section
(Ypage 351).
You can reach the emergency release via the
trunk. Fold the rear backrests forward
(Ypage 258).
XInsert suitable tool, e.g. a screwdriver,
horizontally on the left-hand side into
emergency release slot.
XPush toolevenly in the direction of the
arrow and open the trunk lid.
iWhen you lock the vehicle (Ypage 79),
the trunk is also locked.
Emergency release button
You can open the trunk lid from inside the
vehicle with the emergency release button.
XPress emergency release buttonbriefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
Remergency release buttonflashes for
30 minutes after the trunk lid is opened
Remergency release buttonflashes for
60 minutes after the trunk lid is closed.
Side windows
Important safety notes
GWARNING
While opening the side windows, body parts
in the closing area could become trapped.
There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
somebody becomes trapped, release the
switch or press the switch to open the side
window again.
GWARNING
If children operate the side windows they
could become trapped, particularly if they are
left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
82Side windows
Opening and closing

XInsert bulb holderinto the lamp and turn
it clockwise.
XAlign housing coverand turn it
clockwise until it engages.
Changing the rear bulbs
Opening and closing the side trim
panels
You must open the side trim panel in the trunk
before you can change the bulbs in the tail
lamps.
Left-hand side trim panel
XTo open:turn release knob90° in the
direction of the arrow and remove side trim
panel.
XTo close:insert side trim paneland turn
release knob90° in the opposite
direction to the arrow.
Right-hand side trim panel
XTo open:loosenside trim panelat the
top and fold it down in the direction of the
arrow.
XTo close:insert side panel.
Tail lamp
XSwitch off the lights.
XOpen the trunk.
XOpen the side trim panel (Ypage 114).
XRelease and remove connector.
XPress retaining clipsat the same time in
the direction of the arrows.
XPull the bulb holder out with the bulbs.
Bulb holder
Brake lamp
Brake lamp
"Rear fog lamp
!Backup lamp
Turn signal
114Replacing bulbs
Lights and windshield wipers

Activating the HOLD function
Example: vehicles with a color multifunctiondisplay
XMake sure that the activation conditions
are met.
XDepress the brake pedal.
XQuickly depress the brake pedal further
untilappears in the multifunction
display.
The HOLD function is activated. You can
release the brake pedal.
iIf depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again.
Deactivating the HOLD function
The HOLD function is deactivated
automatically if:
Ryou accelerate.Onvehicles with automatic
transmission:only when the transmission
is in positionDorR.
Rthe transmission is in positionPon vehicles
with automatic transmission.
Ryou depress the brake pedal againwith a
certain amountofpressure until
disappears from the multifunction display.
Ryou secure the vehicle using the electric
parking brake.
Ryou activate DISTRONIC PLUS.
iAfter a time, the electric parking brake
secures the vehicle and relieves the service
brake.
The electric parking brake automatically
secures the vehicle if the HOLD function is
activated and:
Rthe driver's door is open and the driver's
seat beltis unfastened.
Rthe engine is switched off, unless it is
automatically switched off by the ECO
start/stop function.
Ra system malfunction occurs.
Rthe power supply is not sufficient.
If a malfunction occurs, then the transmission
may be shifted into positionPautomatically.
RACE START
Important safety notes
RACE START enables optimal acceleration
from a standing start. The precondition for
this is a suitable high-grip road surface.
RACE START is intended solely for activation
on dedicated race circuits.
iRACE START is only available in AMG
vehicles.
Conditions for activation
You can activate RACE START if:
Rthe doors, hood and the trunk lid are
closed.
Rthe engine is running and the transmission,
all-wheel drive clutch and the engine are at
operating temperature.
RSPORT handling mode is activated.
(Ypage 66)
Rthe steering wheel is in the straight-ahead
position.
Rthe vehicle is stationary and the brake
pedal is depressed (left foot).
Rthe transmission is in positionD.
Rdrive programMis selected (Ypage 146).
Driving systems173
Driving and parking
Z