2014 MERCEDES-BENZ CLA warning

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).
Exterior lighting
General notes
For reasons of safety, Mercedes-Benz
recommends that you drive with the lights
switched on even during the daytime. In some
countries, operation of the headlamps varies
due to legal requirements and self-imposed
obligations.
Driving abroad
Conversion to symmetrical low beam
Switch the headlamps to symmetrical low
beam in countries in which traffic drives on
the opposite side of the road from the country
where the vehicle is registered. This prevents
glare to oncoming traffic. When using
symmetrical lights, the edge of the road is not
lit as widely and as far ahead as normal.
Have the headlamps converted at a qualified
specialist workshop as close to the border as
possible before driving in these countries.
Conversion to asymmetrical low beam
after returning
Have the headlamps converted back to
asymmetrical low-beam headlamps at a
qualified specialist workshop as soon as
possible after crossing the border again.
Setting the exterior lighting
Setting options
Exterior lighting can be set using:
Rthe light switch
Rthe combination switch (Ypage 106)
Rthe on-board computer (Ypage 206)
Light switch
Operation
Left-hand standing lamps
Right-hand standing lamps
Parking lamps, license plate and
instrumentclusterlighting
Automatic headlamp mode,
controlled by the light sensor
Low-beam/high-beam headlamps
Rear fog lamp
\rFog lamp (only vehicles with front fog
lamps)
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to.
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
Rremove the SmartKey fromthe ignition lock
Ropen the driver's door with the SmartKey
in position0.
104Exterior lighting
Lights and windshield wipers

Automatic headlamp mode
GWARNING
When the lightswitch is set to, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turnthe light switch to
.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
is the favored light switch setting. The
light setting is automatically selected
according to the brightness of the ambient
light (exception: poor visibility due to weather
conditions such as fog, snow or spray):
RSmartKey in position1in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
RWith the engine running: if you have
activated the daytime running lamps
function via the on-board computer, the
daytime running lamps or the low-beam
headlamps and parking lamps are switched
on or off automatically depending on the
brightness of the ambient light.
XTo switch on automatic headlamp
mode:turn the light switch to.
The daytime running lamps improve the
visibility of your vehicle during the day. The
daytime running lamps function is required by
law in Canada.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position toP, the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in high ambient light: if you
turn the light switch to, you turn on the
daytime running lamps and parking lamps.
If the engine is running and you turn the light
switch to, the manual settings take
precedence over the daytime running lamps.
Low-beam headlamps
Even if the light sensor does not detect that
it is dark, the parking lamps and low-beam
headlamps switch on when the ignition is
switched on and the light switch is set to the
position. This is a particularly useful
function in the event of rain and fog.
XTo switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position2or start the engine.
XTurn the light switch to.
The greenindicator lamp in the
instrumentcluster lights up.
Front fog lamps
In conditions where visibility is poor due to
fog, snow or rain, the fog lamps improve
visibility as well as making it easier for other
road users to see you. They can be operated
together with the parking lamps or together
with the parking lamps and low-beam
headlamps.
XTo switch on the front fog lamps:turn
the SmartKey in the ignition lock to position
2or start the engine.
XTurn the light switch toor.
XPress the\rbutton.
The green\rindicator lamp in the
instrumentcluster lights up.
XTo switch off the front fog lamps:press
the\rbutton.
The green\rindicator lamp in the
instrumentcluster goes out.
Only vehicles with front fog lamps are
equipped with the "fog lamp" function;
information on the fog lamp function for
vehicles with Intelligent Light System
(Ypage 108).
Exterior lighting105
Lights and windshield wipers
Z

XPress the combination switch beyond the
pressure point in the direction of
arrow.
In theposition, the high-beam
headlamps are only switched on when it is
dark and the engine is running.
The blueindicator lamp in the
instrument cluster lights up when the high-
beam headlamps are switched on.
XTo switch off the high-beam
headlamps:move the combination switch
back to its normal position.
The blueindicator lamp in the
instrument cluster goes out.
iVehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active,
it controls activation of the high-beam
headlamps (Ypage 108).
High-beam flasher
XTo switch on:turn the SmartKey in the
ignition lock to position1or2or start the
engine.
XPull the combination switch in the direction
of arrow".
Hazard warning lamps
The hazard warning lamps automatically
switch on if:
Ran air bag is deployed
Rthe vehicle decelerates rapidly from a
speed of more than 45mph(70 km/h) and
comes to a standstill
XTo switch on the hazard warning lamps:
press button.
All turn signals flash. If you now switch on
a turn signal using the combination switch,
only the turn signal lamp on the
corresponding side of the vehicle will flash.
XTo switch off the hazard warning
lamps:press button.
The hazard warning lamps switch off
automatically if the vehicle reaches a speed
of over 6mph (10km/h) again after a full
brake application.
iThe hazard warning lamps still operate if
the ignition is switched off.
Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is
operated five times while the lights are on and
the engine is running (Ypage 115). When you
switch off the ignition, the automatic
headlamp cleaning system is reset and
counting is resumed from 0.
Cornering light function
The cornering light function improves the
illumination of the road over a wide angle in
the direction you are turning, enabling better
visibility in tight bends, for example. The
cornering light function can only be activated
whenthe low-beam headlamps are switched
on.
Exterior lighting107
Lights and windshield wipers
Z

Active:
Rif you are driving at speeds below 25 mph
(40 km/h) and switch on the turnsignal or
turnthe steering wheel.
Rif you are driving at speeds between
25 mph(40 km/h) and 45 mph(70 km/h)
and turn the steering wheel.
Not active:if you are driving at speeds above
25 mph (40 km/h) or switch off the turn
signal or turn the steering wheel to the
straight-ahead position.
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than three minutes.
Extended range fog lamps
The extended range fog lamps reduce the
glare experienced by the driverand improve
the illuminationofthe edge of the road.
Active:if you are driving at speeds below
40 mph (70 km/h) and you switch on the rear
fog lamp.
Not active:if, following activation, you are
driving at speeds above 60 mph (100 km/h)
or if you switch off the rear fog lamp.
Adaptive Highbeam Assist
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that
have lights, or may recognize them too late.
In this or similar situations, the automatic
high-beam headlamps will not be deactivated
or activated regardless. There is a risk of an
accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rdirt on the sensors or the sensors are
obscured
General notes
You can use this function to set the
headlamps to change between low beam and
high beam automatically.The system
recognizes vehicles with their lights on, either
approaching from the opposite direction or
traveling in front of your vehicle, and
consequently switches the headlamps from
high beam to low beam.
The system automatically adapts the low-
beam headlamp range depending on the
distance to the other vehicle. Once the
108Exterior lighting
Lights and windshield wipers

Crash-responsive emergency lighting
The interiorlighting is activated automatically
if the vehicle is involved in an accident.
XTo switch off the crash-responsive
emergency lighting:press the hazard
warning lamp button.
or
XLockand then unlock the vehicle using the
key.
Replacing bulbs
Important safety notes
Xenon bulbs
GDANGER
Xenonbulbs carry a high voltage. You can get
an electric shock if you remove the cover of
the Xenon bulb and touch the electrical
contacts. There is a risk of fatal injury.
Never touch the parts or the electrical
contacts of the Xenon bulb. Always have work
on the Xenon bulbs carried out at a qualified
specialist workshop.
If your vehicle is equipped with Xenon bulbs,
you can recognize this by the following: the
cone of light from the Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
Bulbs and lamps are an important aspectof
vehicle safety.You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs
GWARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
Ryou touch it
Rit is hot
Ryou drop it
Ryou scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified
voltage.
Marks on the glass tube reduce the service
life of the bulbs. Do not touch the glass tube
with your bare hands. If necessary, clean the
glass tube when cold with alcohol or spirit and
rub it off with a lint-free cloth.
Protectbulbs from moisture during
operation.Do not allow bulbs to come into
contact with liquids.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Ypage 111). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs,
consult a qualified specialist workshop.
If the new bulb still does not light up, consult
a qualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb
type can be found in the legend.
Replacing bulbs111
Lights and windshiel dw ipers
Z

Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm.There is a risk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
!Never open the hood if a windshield wiper
arm has been folded away from the
windshield.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield may be damaged by the force of
the impact.
Mercedes-Benzrecommends that you have
the wiper blades changed ataqualified
specialist workshop.
Changing the windshield wiper blades
Removing the wiper blades
XRemove the SmartKey from the ignition
lock.
XFold the wiper arm away from the
windshield.
XPress both release clips.
XFold wiper bladein the direction of
arrow"away from wiper arm!.
XRemove wiper bladein the direction of
arrow.
Installing the wiper blades
XPosition new wiper bladewith
recess on lug.
XFold wiper bladein the direction of
arrow"onto the wiper arm, until retaining
clipsengage in bracket!.
XMake sure that wiper bladeis seated
correctly.
XFold the wiper arm back onto the
windshield.
116Windshieldwipers
Lights and windshield wipers

XTurn the SmartKey to position0in the
ignition lock or remove it (Ypage 137).
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up.
XTo deactivate:press thebutton.
The indicator lamp in thebutton goes
out.
iResidual heat is deactivated
automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Setting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
Rnever cover the air vents or air intake grilles
in the vehicle interior.
iYou can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
iFor optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents
XTo open the center air vent:turn the
adjuster in one of center air vents
counter-clockwise.
XTo close the center air vent:turn the
adjuster in one of center air vents
clockwise until it engages.
Setting the side air vents
Side window defroster vent
Side air vent
XTo openaside air vent:turn the adjuster
in side air ventcounter-clockwise.
XTo closeaside air vent:turn the adjuster
in side air ventclockwise until it
engages.
132Setting the air vents
Climate control

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