ECU MERCEDES-BENZ CLA 2014 User Guide

recommend that you always place a child
in a rear-facing child restraint in a backseat.
RIf you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to do
so, make sure theindicator
lamp is illuminated, indicating that the front
passenger front air bag is deactivated.
Should theindicator lamp not
illuminate or go out while the restraint is
installed, please checkinstallation.
Periodically check theindicator
lamp while driving to make sure the
indicator lamp is illuminated. If the
indicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
Achild in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
RIf you have to place a child in a forward-
facing child restraint on the front passenger
seat, move the seat as far back as possible,
use the proper child restraint
recommended for the age, size and weight
of the child, and secure child restraint with
the vehicle's seat belt according to the
child seat manufacturer's instructions.
GWARNING
If the child restraint system is installed
incorrectly on a suitable seat, it cannot
protect as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Make sure that you observe the child restraint
system manufacturer's installation
instructions and the notes on use. Please
ensure, that the base of the child restraint
system is always resting completely on the
seat cushion. Never place objects, e.g.
cushions, under or behind the child restraint
system. Only use child restraint systems with
the original cover designed for them. Only
replace damaged covers with genuine covers.
GWARNING
If the child restraint system is installed
incorrectly or is not secured, it can come
loose in the event of an accident, heavy
braking or a sudden change in direction. The
child restraint system could be thrown about,
striking vehicle occupants. There is an
increased risk of injury, possibly even fatal.
Always install child restraint systems
properly, even if they are not being used.
Make sure that you observe the child restraint
system manufacturer's installation
instructions.
GWARNING
Child restraint systems or their securing
systems which have been damaged or
subjected to a load in an accident can no
longer protect as intended. The child cannot
then be restrained in the event of an accident,
heavy braking or sudden changes of direction.
There is an increased risk of injury, possibly
even fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the
securing systems on the child restraint
system checked at a qualified specialist
workshop, before you install a child restraint
system again.
GWARNING
Infants and small children should never share
a seat belt with another occupant. In the event
of an accident, they could be crushed
between the occupant and seat belt.
Achild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
Children in the vehicle55
Safety
Z

Children that are too large for a child restraint
must travel in seats usingnormal seat belts.
Position the shoulder belt across the chest
and shoulder, not the face or neck.Abooster
seat may be necessary to achieve proper seat
belt positioning for children over 41 lbs
(18 kg) until they reach a height wherealap/
shoulder belt fits properly without a booster
seat.
When the child restraint is notinuse, remove
it from the vehicle or secure it with the seat
belt to prevent the child restraint from
becoming a projectile in the event of an
accident.
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 positionP
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 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.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot.
Children may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight.
Protect it with a blanket, for example. If the
child restraint system has been exposed to
direct sunlight, let it cool down before
securing the child in it. Never leave children
unattended in the vehicle.
If an infant or child is traveling in the vehicle:
RSecure the child with a child or infant seat
restraint system appropriate to the age and
weight of the child.
RMake sure that the infant or child is
properly secured at all times while the
vehicle is in motion.
Mercedes-Benz recommends that you always
properly secure all infants and children with
a child or infant seat restraint system for the
trip.
The use of seat belts and infant and child
restraint systems is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Infants and children must always be seated in
an appropriate infant or child restraint system
recommended for the size and weight of the
child. The infant or child restraint system
must be properly secured in accordance with
the manufacturer's instructions.
All infant or child restraint systems must meet
the following standards:
RU.S. Federal Motor Vehicle Safety
Standards 213 and 225
RCanadian Motor Vehicle Safety Standards
213 and 210.2
Confirmation that the child restraint system
corresponds to the standards can be found
on an instruction label on the child restraint
system. This confirmation can also be found
56Children in the vehicle
Safety

in the installation instructions that are
included with the child restraint system.
Always read and follow the manufacturer's
instructions when using an infant or child
restraint system or booster seat.
Observe the warning labels in the vehicle
interior or on the infant or child restraint.
Special seat belt retractor
GWARNING
If you release the seat belt when driving, the
special seat belt retractor is deactivated.
The released seat belt cannot be engaged
again while driving, because the inertia reel
pulls in the seat belt a small distance. The
child restraint system is no longer properly
secured. There is an increased risk of serious
injury or even fatal injury.
Always keep the seat belt of the activated
special seat belt retractor engaged when
driving.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor.
When activated, the special seat belt
retractor ensures that the seat belt will not
slacken once the child restraint system has
been secured.
Installing a child restraint system:
XAlways comply with the manufacturer's
installation instructions.
XPull the seat belt smoothly fromthe seat
belt retractor.
XEngage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
XPull the seat belt out fully and let the seat
belt retractor retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
XPush down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
XAlways comply with the manufacturer's
installation instructions.
XPress the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated.
Child restraint system on the front-
passenger seat
GWARNING
If the front-passenger front air bag is not
deactivated:
Ra child secured in a child restraint system
on the front-passenger seat could be
seriously or even fatally injured by the front-
passenger air bag deploying. This is
especially a risk if the child is in the
immediate vicinity of the front-passenger
air bag when it deploys.
Rnever secure a child on the front-passenger
seat in a rearward-facing child restraint
system. Only secure a rearward-facing
child restraint system on a suitable rear
seat.
Rand you secure a forward-facing child
restraint system to the front-passenger
seat, you must move the front-passenger
seat as far back as possible. When doing
so, ensure that the shoulder belt strap from
the belt outlet on the vehicle is routed
towards the front to the shoulder belt guide
on the child restraint system. Set the belt
height adjustment so that the belt strap is
routed towards the front along the bottom.
The front-passenger air bag is not
deactivated:
Ron vehicles without an air bag deactivation
system on the front-passenger seat.
Ron vehicles with an air bag deactivation
system on the front-passenger seat, unless
a child restraint system with transponders
Children in the vehicle57
Safety
Z

for an air bag deactivation system is
installed on the front-passenger seat.
Ron vehicles with an air bag deactivation
system on the front-passenger seat, if the
PASSENGER AIR BAG OFF indicator
lamp is not lit.
To make you aware of this danger, a
corresponding warning sticker has been
affixed to the side of the dashboard and on
both sides of the sun visor on the front-
passenger side.
Information about recommended child
restraint systems is available at any
authorized Mercedes-Benz Center.
Warning notice on the front-passenger sun visor
Warning symbol for a rearward-facing childrestraint system
Do not use a rearward-facing child restraint
systemonaseat that is protected by an air
bag installed in front of it.
LATCH-type (ISOFIX) child seat anchors
in the rear
GWARNING
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protective effect for
children whose weight is greater than 48 lbs
(22 kg) who are secured using the safety belt
integrated in the child restraint system. In the
event of an accident, a child might not be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If the child weighs more than 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restraint
systems with which the child is also secured
with the vehicle seat belt. Also secure the
child restraint system with the Top Tether
belt, if available.
When installing a child restraint system, be
sure to observe the manufacturer's
installation instructions and the instructions
for correct use of the child restraint system.
!When installing the LATCH-type (ISOFIX)
child restraint system, make sure that the
seat belt for the center seat does not get
trapped. Otherwise, the seat belt could be
damaged.
XInstall the LATCH-type (ISOFIX) child
restraint system. Comply with the child
restrain system manufacturer's
instructions when installing the LATCH-
type (ISOFIX) child restraint system.
LATCH-type (ISOFIX) is a standardized
securing system for specially designed child
restraint systems on the rear seats. Securing
58Children in the vehicle
Safety

ringsfor two LATCH-type (ISOFIX) child
restraint systems are installed on the left and
right of the rear seats.
Non-LATCH-type (ISOFIX) child seats may
also be used and can be installed using the
vehicle's seat beltsystem. Install the child
seat according to the manufacturer's
instructions.
Top Tether
Important safety notes
GWARNING
Always engage the rearseat backrests in an
upright position before installing the Top
Tether belt. Push and pull the rear seat
backrests to check whether they are engaged
correctly. If the seat backrest is not locked
properly, the seat backrest could fold. The
child seat would no longer be supported
properly or positioned to provide its intended
benefit.That could cause serious or even fatal
injuries.
Example: Top Tether belt with one belt strap
Top Tether provides an additional connection
between the LATCH-type (ISOFIX) child
restraint system secured with ISOFIX and the
rear seat. This helps reduce the risk of injury
even further. If the child restraint system is
installed with Top Tether, this should always
be used.
The Top Tether anchorage points are installed
in the rear compartment behind the outer
head restraints on the parcel shelf.
There is also another Top Tether anchorage
point behind the central rear seat.
XPress down the rear of coverin the
direction of the arrow.
Coveris raised slightly at the front.
XFold up coverof Top Tether anchorage
".
XTop Tether belt with one belt strap:route
Top Tether beltcentrally over head
restraint.
XTop Tether belt with two belt straps:
route Top Tether beltson the left and
right past the side of head restraint.
XHook Top Tether hook!into Top Tether
anchorage".
XMake sure that Top Tether beltis not
twisted.
XInstall the LATCH-type (ISOFIX) child
restraint system with Top Tether. Always
comply with the child restraint system
manufacturer's installation instructions
when doing so. Make sure that Top Tether
beltis tight.
Children in the vehicle59
Safety
Z

Child-proof locks
Important safety notes
GWARNING
If childrenare 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 positionP
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 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.
GWARNING
If children are traveling in the vehicle, they
could:
Ropen doors, thus endangering other people
or road users
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the
vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
You can activate the following child-proof
locks:
Rrear doors (Ypage 60)
Rrear side windows (Ypage 61)
Child-proof locks for the rear doors
GWARNING
Children could open a rear door from inside
the vehicle. This could resultinserious
injuries or an accident. Therefore, when
children ride in the rear always secure the rear
doors with the child-proof locks.
You secure each door individually with the
child-proof locks on the rear doors.Adoor
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
XTo activate:press the child-proof lock
lever up in the direction of arrow.
XMake sure that the child-proof locks are
working properly.
XTo deactivate:press the child-proof lock
lever down in the direction of arrow.
60Children in the vehicle
Safety

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

The seat belt should:
Rfit snugly across your body
Rbe routed across the middle of your
shoulder
Rbe routed in your pelvic area across the
hip joints
XBefore starting off, adjust the rear-view
mirror and the exterior mirrors
(Ypage 97) in such a way that you have
a good view of road and traffic conditions.
XVehicles with a memory function:save
the seat and exterior mirror settings
(Ypage 100).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
You could lose control of your vehicle if you
do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat
adjustmentbuttons and become trapped.
There is a riskofinjury.
While moving the seats, make sure thatyour
hands or other body parts do not get under
the lever assembly of the seat adjustment
system.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There isarisk of injury.
Make sure when adjustingaseat that no one
has any body parts in the sweep of the seat.
GWARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position.When braking or in the event
of an accident, you could slide underneath the
seat belt and sustain abdomen or neck
injuries, for example. This poses an increased
risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always make sure that the seat
is in the upright position.
GWARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level.
GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
Seats91
Seats, steering wheel and mirrors
Z

recommended for the size and weight of the
child.For additional information, see the
"Children in the vehicle" section.
Achild's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
Rclean the seat covers as recommended;
see the "Interior care" section.
Rdo not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
!Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
iThe head restraints in the front and rear
seats can be removed.1
For more information, contact a qualified
specialist workshop.
iFurther related subjects:
RLuggage compartmentenlargement
(folding down the rearseats)
(Ypage 257)
Adjusting the seats manually
Seat fore-and-aft adjustment
XLift handleand slide the seat forwards
or backwards.
XRelease leveragain.
Make sure that you hear the seat engage in
position.
Backrest angle
XRelieve the pressure on the backrest.
XTurn handwheel!forwards or backwards.
Seat height
XPull handle"upwards or push it down
repeatedly until the seat has reached the
desired height.
Seat cushion angle
Adjust the angle so that your thighs are lightly
supported.
XTurn handwheelforwards or backwards.
1Not on vehicles with sportsseats.
92Seats
Seats, steering wheel and mirrors

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment 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
specialist workshops: (Ypage 25).
Notes on breaking-inanew vehicle
Important safety notes
New and replaced brake pads and discs only
reach their optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applying greater force
to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
RYou should therefore drive at varying
vehicle and engine speeds for the first
1000 miles (1500 km).
RAvoid heavy loads, e.g.driving at full
throttle, during this period.
RChange gearingood time, before the
tachometer needle is
of the way to the
red area of the tachometer.
RDo not manually shift to a lower gear to
brake the vehicle.
RIf possible, do not depress the accelerator
pedal past the point of resistance
(kickdown).
RIdeally, for the first 1000 miles(1500 km),
drive in programE.
After 1,000 miles (1,500 km), you can
increase the engine speed gradually and bring
the vehicle to full speed.
Additional breaking-in notes for AMG
vehicles:
RDo not drive faster than 85 mph
(140 km/h) for the first 1,000 miles
(1,500 km).
ROnly allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
RChange gearingood time.
iYou should also observe these notes on
breaking-in if the engine or parts of the
drive train on your vehicle have been
replaced.
iAlways observe the respective speed
limits.
Driving
Important safety notes
GWARNING
Objects in the driver's footwell can restrictthe
pedal travel or obstructadepressed pedal.
The operating and road safety of the vehicle
is jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficientclearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
GWARNING
Unsuitable footwear can hindercorrect usage
of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
136Driving
Driving and parking