2016 MERCEDES-BENZ CLA-Class engine

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 25).
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 theSmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity 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 cargo com-
partment. 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.
76SmartKey
Opening and closing

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 in Audio
20/COMAND, it lights up when it is dark after the vehicle is unlocked with the remote con-
trol (see separate operating instructions).
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 222).
XTo open the trunk lid automatically:
press and hold the Fbutton until the
trunk lid opens (
Ypage 86).
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Locking and unlocking
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a con-ventional SmartKey. Unlock the vehicle by
using KEYLESS-GO, for instance, and lock it
using the &button on the SmartKey.
The driver's door and the door at which the
handle is used, must both be closed. The
SmartKey must be outside the vehicle. When
locking or unlocking with KEYLESS-GO, the
distance between the SmartKey and the cor-
responding door handle must not be greater
than 3 ft (1 m). A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart-
Key is in the vehicle. This occurs, for example:
Rwhen starting the engine
Rwhilst driving
Rwhen the external door handles are
touched
Rduring convenience closing
XTo unlock the vehicle:
touch the inner
surface of the door handle.
XTo lock the vehicle: touch sensor sur-
face :or;.
Make sure that you do not touch the inner
surface of the door handle.
XConvenience closing feature: touch
recessed sensor surface ;for an exten-
ded period.
Further information on the convenience
closing feature (
Ypage 90).
XTo unlock the trunk lid: pull trunk lid han-
dle :.
SmartKey77
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
control function:
XUnlock (Ypage 85) or lock (Ypage 85) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the
SmartKey.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 317).
or
XJump-start the vehicle (Ypage 319).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle.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 79) and replace it if nec-
essary (
Ypage 80).
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.
82SmartKey
Opening and closing

ProblemPossible causes/consequences andMSolutions
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist work-
shop.
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.
Doors
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.
You should preferably place luggage or loads in the cargo compartment. Observe the load-
ing guidelines (
Ypage 272).
Unlocking and opening doors from
the inside
!
The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos- sible to close the door. Do not attempt to
force the door closed. You could otherwise
damage the door or the side window.
When a door is opened, the side window on
that side opens slightly. When the door is
closed, the side window closes again.
XTo unlock and open a front door: pull
door handle ;.
If the door is locked, locking knob :pops
up. The door is unlocked and opens.
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
even if it has been locked. You can only open the rear doors from inside the vehicle if they
are not secured by the child-proof locks
(
Ypage 64).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a
door from the inside will trigger the anti-theft
Doors83
Opening and closing
Z

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
system will be triggered (
Ypage 73).
XTake the mechanical key out of the Smart-
Key (
Ypage 78).
XInsert the mechanical key into the lock of
the driver'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 the mechanical key into the Smart-
Key (
Ypage 79).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key.
XOpen the driver's door.
XClose the front-passenger door, the rear
doors and the trunk lid.
XPress the locking button on the driver’s
door (
Ypage 84).
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 Smart-
Key (
Ypage 78).
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 the mechanical key into the Smart-
Key (
Ypage 79).
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.
Trunk85
Opening and closing
Z

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 371).
You should preferably place luggage or loads in the trunk. Observe the loading guidelines
(
Ypage 272).
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 key.
XPull handle :.
XRaise the trunk lid.
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 371).
86Trunk
Opening and closing

Opening automatically
You can open the trunk lid automatically
using the SmartKey or the handle in the trunk
lid.
XPress and hold theFbutton 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.
The opening dimensions of the trunk lid can
be found under "Vehicle data" (
Ypage 371).
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 the trunk lid until the trunk lid opens.
Emergency release
General notes
!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 371).
If the trunk lid can no longer be unlocked:
Rusing the SmartKey, or
Rusing the remote operating switch in the
door control panel:
Use the emergency release on the inside of
the trunk lid.
You can reach the emergency release via the trunk.
Opening
Trunk87
Opening and closing
Z

This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
someone becomes trapped, press the switch
to open the side window again.
Opens and closes the side windows
The switches for all side windows are located
on the driver's door. There is also a switch on
each door for the corresponding side window.
The switches on the driver's door take prec-
edence.
:Front left
;Front right
=Rear right
?Rear left
XTurn the SmartKey to position 1or 2in the
ignition lock (
Ypage 147).
XTo open manually: press and hold the cor-
responding switch.
XTo open fully: press the switch beyond the
point of resistance and release it.
Automatic operation is started.
XTo close manually: pull the corresponding
switch and hold it.
XTo close fully: pull the switch beyond the
point of resistance and release it.
Automatic operation is started.
XTo interrupt automatic operation:
press/pull the corresponding switch again.
iIf you press/pull the switch beyond the
point of resistance, automatic operation is
started in the corresponding direction. You
can stop automatic operation by pressing/
pulling the switch again.
iYou can continue to operate the side win-
dows after you switch off the engine or
remove the SmartKey. This function
remains active for five minutes or until the
driver's or front-passenger door is opened.
iWhen the override feature for the side
windows is activated (
Ypage 64), the side
windows cannot be operated from the rear.
Convenience opening
Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive Package or
AMG Exclusive Package: you can ventilate
the vehicle before you start driving.
The SmartKey can also be used to carry out
the following functions simultaneously:
Runlock the vehicle
Ropen the side windows
Ropen the panorama roof with power tilt/
sliding panel and the roller sunblind
The convenience opening feature can only be
operated using the SmartKey.
The "convenience opening" feature is also
available when the vehicle is unlocked.
XVehicles with Exclusive Package or
AMG Exclusive Package but without
KEYLESS-GO and the KEYLESS-GO start
function: for the following operations,
point the tip of the SmartKey at the door
handle on the driver's door. The SmartKey
must be close to the driver's door handle.
iVehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the SmartKey
must be in close proximity to the vehicle.
Side windows89
Opening and closing
Z