MERCEDES-BENZ CLA 2014 Owners Manual

system no longer detects any other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel.
Switching Adaptive Highbeam Assist
on/off
XTo activate:activate the Adaptive
Highbeam Assist function using the on-
board computer (Ypage 207).
XTurn the light switch to.
XPress the combination switch beyond the
pressure point in the direction of arrow
(Ypage 106).
Theindicator lamp in the
multifunction display lights up if it is dark
and the light sensor activates the low-beam
headlamps.
If you are driving at speeds above
approximately 28 mph (45 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above
approximately 35 mph (55 km/h) and no
other road users have been detected:
The high-beam headlamps are switched on
automatically. Theindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 30 mph (45 km/h) or other
road users have been detected or the roads
are adequately lit:
The high-beam headlamps are switched off
automatically. Theindicator lamp in
the instrument cluster goes out. The
indicator lamp in the multifunction display
remains lit.
XTo deactivate:move the combination
switch back to its normal position.
Theindicator lamp in the
multifunction display goes out.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
XSwitch on the lights and drive off.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
XHave the headlamps checked at a qualified
specialist workshop.
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Interior lighting
Overview of interior lighting
Front overhead control panel
To switch the left-hand frontreading
lamp on/off
To switch the front interior lighting
on
"To switch the on/off
!To switch the frontinterior lighting/
automatic interiorlighting control off
To switch the right-handfront
reading lamp on/off
To switch the automatic interior lighting
control on
Rear-compartment overhead control panel
To switch the left-hand reading lamp
on/off
To switch the right-hand reading
lamp on/off
Interior lighting control
Important notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position2in the
ignitionlock.
The brightness of the ambient lighting may be
set using the on-board computer
(Ypage 207).
Automatic interior lighting control
XTo switch on:set the switch to center
position .
XTo switch off:set the switch to the
position.
The interior lighting automatically switches
on if you:
Runlock the vehicle
Ropen a door
Rremove the SmartKey from the ignition
lock.
The interior light is activated for a short while
when the SmartKey is removed from the
ignition lock. You can activate this delayed
switch-off using the on-board computer
(Ypage 208).
Manual interior lighting control
XTo switch the front interior lighting on:
set the switch to theposition.
XTo switch the interior lighting off:set the
switch to theposition or (if the door
is closed) to the center position.
XTo switch the interior lighting on/off:
press the
button.
XTo switch the reading lamps on/off:
press thebutton.
110Interior lighting
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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.
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Halogen headlamps
Turnsignal lamp: PY 21 W
Low-beam headlamp/daytime running
lamp/parking lamp/standing lamp:
H15 55 W/15 W
"Low-beam headlamp: H7 55 W
Vehicles with IntelligentLight System
Cornering lamp: H7 55 W
Tail lamp (halogen headlamps)
Rear fog lamp: P 21 W
Brake lamp: W 16 W
"Brake lamp: W 16 W
!Turn signal lamp: PY 21 W
Backup lamp: W 16 W
Changing the front bulbs
Removing and installing thecover in the
front wheel housing
You must remove the cover from the front
wheel housing before you can change the
frontbulbs.
XTo remove:switch off the lights.
XTurn the frontwheels inwards.
XTurn rotary knobthrough 90°.
Coveris released.
XPush coverdown.
XTo install:push coverup.
XTurn rotary knobthrough 90°.
Coveris locked.
Low-beam headlamps (halogen
headlamps)
112Replacing bulbs
Lights and windshield wipers

XRemove the cover in the front wheel
housing (Ypage 112).
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsertthe new bulb into bulb holder.
XInsert bulb holderinto the lamp and turn
it clockwise.
XAlign housing coverand turn it
clockwise until it engages.
XReplace the cover in the front wheel
housing (Ypage 112).
High-beam headlamps/daytime
running lamps/parking lamps/
standing lamps (vehicles with halogen
headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulbcounter-clockwise and pull it
out.
XInsert the new bulb and engage it to the
stop.
XAlign housing coverand turn it
clockwise until it engages.
Turn signals (halogen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsert the new bulb into bulb holder.
XInsert bulb holderand turn it clockwise
until it engages.
Cornering light function (Intelligent
Light System)
XSwitch off the lights.
XOpen the hood.
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsert the new bulb into bulb holder.
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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

XBrake lamp/rear fog lamp/backup
lamp:remove the corresponding bulb from
the bulb holder.
XInsert the new bulb into the bulb holder.
XTurn signal lamp:lightly press the bulb
into the bulb holder, turn it counter-
clockwise and remove it from bulb holder.
XInsert the new bulb into the bulb holderand
turn it clockwise.
XReinsert the bulb holderand engage on
retaining clips.
XRe-establish contact with the connector.
XClose the side trim panel (Ypage 114).
Windshieldwipers
Switching the windshield wipers on/
off
!Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when
the windshield is dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always
use washer fluid when operating the
windshield wipers.
!If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash.
Combination switch
Windshield wiper off

Intermittentwipe, low (rain sensor
set to low sensitivity)
Intermittentwipe, high (rain sensor
set to high sensitivity)
Continuous wipe, slow
Continuous wipe, fast
Single wipe/To wipe the
windshield using washer fluid
XSwitch on the ignition.
XTurn the combination switch to the
corresponding position.
!Vehicles with a rain sensor: if the
windshield becomes dirty in dry weather
conditions, the windshield wipers may be
activated inadvertently. This could then
damage the windshield wiper blades or
scratch the windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
Vehicles witharain sensor:in the
or
position, the appropriate wiping
frequency is automatically set according to
the intensity of the rain. In theposition,
the rainsensor is more sensitive than in
the
position, causing the windshield
wipers to wipe more frequently.
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could
prevent you from observing the traffic
conditions.Replace the wiper blades twice a
year, ideally in spring and fall.
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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.
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Problems with the windshield wipers
ProblemPossible causes/consequences and
Solutions
The windshield wipers
are jammed.
Leaves or snow, for example, may be obstructing the windshield
wiper movement.The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the
ignition lock.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.
The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist
workshop.
The windshield washer
fluid from the spray
nozzles no longer hits
the center of the
windshield.
The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist
workshop.
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118