headlamp MERCEDES-BENZ CLA-Class 2015 C117 User Guide

The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above approx-
imately 35 mph (55 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 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. The Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
X To deactivate: move the combination
switch back to its normal position.
The _ indicator lamp in the multifunc-
tion display goes out. Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This moisture does not affect the functionality of
the headlamp. Interior lighting
Overview of interior lighting
Front overhead control panel :
p Switches the left-hand front reading
lamp on/off
; c Switches the front interior lighting
on
= v Switches the rear interior lighting
on/off
? | Switches the front interior lighting/
automatic interior lighting control off
A p Switches the right-hand front read-
ing lamp on/off
B Switches the automatic interior lighting
control on
Rear compartment control panel :
p To switch the left-hand reading lamp
on/off
; p To switch the right-hand reading
lamp on/off Interior lighting
115Lights and windshield wipers Z

Interior lighting control
General 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 position 2in the
ignition lock.
The color and brightness for the ambient
lighting may be set using COMAND or Audio
20 (see the separate operating instructions).
Automatic interior lighting control X
To switch on: set the switch to center
position B.
X To switch off: set the switch to the |
position.
The interior lighting automatically switches
on if you: R unlock the vehicle
R open a door
R remove the SmartKey from the ignition
lock.
The interior light is activated for a short while when the SmartKey is removed from the igni-
tion lock. This delayed switch-off can be
adjusted using COMAND or Audio 20 (see the separate Operator's Manual).
Manual interior lighting control X
To switch the front interior lighting on:
set the switch to the cposition.
X To switch the front interior lighting off:
set the switch to the |position or (if the
door is closed) to the center position.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamps on/off:
press the pbutton. Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or X Lock and then unlock the vehicle using the
SmartKey. Replacing bulbs
Important safety notes
Xenon bulbs G
DANGER
Xenon bulbs carry a high voltage. You can get an electric shock if you remove the cover of
the Xenon bulb and touch the electrical con-
tacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the Xenon bulb. Always have work on
the Xenon bulbs carried out at a qualified spe-
cialist 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 aspect of
vehicle safety. You must therefore make sure that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs G
WARNING
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. 116
Replacing bulbsLights and windshield wipers

Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified volt- age.
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.
Protect bulbs from moisture during opera-
tion. 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 (Y page 117). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs, con-
sult 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. Vehicles with halogen headlamps
:
Turn signal 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 Bi-Xenon headlamps
:
Cornering lamp: H7 55 W Tail lamps (vehicles with halogen headlamps)
: Rear fog lamp: P 21 W
; Brake lamp: W 16 W
= Brake lamp: W 16 W
? Turn signal lamp: PY 21 W
A Backup lamp: W 16 W Replacing bulbs
117Lights andwindshield wipers Z

Changing the front bulbs
Removing and installing the cover in the
front wheel housing You must remove the cover of the front wheel
housing before you can change the front turn signal lamp.
X To remove: switch off the lights.
X Turn the front wheels inwards.
X Turn rotary knob :through 90°.
Cover ;is released.
X Push cover ;down.
X To install: push cover ;up.
X Turn rotary knob :through 90°.
Cover ;is locked.
Low-beam headlamps (halogen head-
lamps) X
Remove the cover in the front wheel hous-
ing (Y page 118).
X Turn housing cover :counter-clockwise
and remove it. X
Turn bulb holder ;counter-clockwise and
pull out.
X Take the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right.
X Replace the cover in the front wheel hous-
ing (Y page 118).
High-beam headlamps/daytime run-
ning lamps/parking lamps and stand-
ing lamps (vehicles with halogen head-
lamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover :counter-clockwise
and remove it.
X Turn bulb ;counter-clockwise and pull
out.
X Insert the new bulb and engage it to the
stop.
X Press on housing cover :and turn it to the
right. 118
Replacing bulbsLights and windshield wipers

Turn signals (halogen headlamps)
X
Switch off the lights.
X Open the hood.
X Turn bulb holder :counter-clockwise and
pull out.
X Take the bulb out of bulb holder :.
X Insert the new bulb into bulb holder :.
X Insert bulb holder :and turn it clockwise
until it engages.
Cornering light function (xenon bulbs) X
Switch off the lights.
X Open the hood.
X Turn housing cover :counter-clockwise
and remove it.
X Turn bulb holder ;counter-clockwise and
pull out.
X Take the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right. Changing the rear bulbs
Opening and closing the side trim pan-
els View of right-hand side trim panel
You must open the side trim panel in the trunk
before you can change the bulbs in the tail
lamps.
X To open: release right or left side trim
panel :at the top and fold it down in the
direction of the arrow.
X To close: insert side panel :.
Tail lamps X
Switch off the lights.
X Open the trunk.
X Open the side trim panel (Y page 119). X
Press retaining clips :at the same time in
the direction of the arrows.
X Carefully remove the bulb holder with the
contacted connectors and the bulbs. Replacing bulbs
119Lights andwindshield wipers Z

Display messages
Possible causes/consequences and
M
MSolutions Classification System) has disabled the front-passenger front
air bag (Y page 49)
R the Front
Front Passenger
Passenger Airbag
AirbagEnabled
Enabled See
SeeOperator's
Operator's
Manual
Manual orFront
Front Passenger
Passenger Airbag
AirbagDisabled
Disabled See
SeeOper‐
Oper‐
ator's Manual
ator's Manual display messages must not be shown in the
multifunction display.
X Wait for a period of at least 60 seconds until the necessary sys-
tem checks have been completed.
X Make sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF or ON
indicator lamp remains lit or goes out depends on how OCS clas- sifies the occupant.
If the conditions are not fulfilled, the system is not operating cor-
rectly.
X Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see (Y page 49). Lights
i Vehicles with LED bulbs in the light clusters:
The display message for the corresponding light will only appear if all the LEDs have failed. Display messages
Possible causes/consequences and
M MSolutions b
Check Left Corner‐ Check Left Corner‐
ing Light ing Light
orCheck
Check
Right Cornering
Right Cornering
Light Light The left or right-hand cornering light is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X Visit a qualified specialist workshop. b
Check Left Low Check Left Low
Beam Beam
orCheck
Check
Right Low Beam
Right Low Beam The left or right-hand low-beam headlamp is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X Visit a qualified specialist workshop. Display
messages
229On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions b
Check Rear Left Check Rear Left
Sidemarker Lamp Sidemarker Lamp
or
Check Rear Right
Check Rear Right
Sidemarker Lamp Sidemarker Lamp The rear left-hand or rear right-hand side marker lamp is faulty.
X Visit a qualified specialist workshop. b
Check Check
Left
LeftDaytime
Daytime
Running Light
Running Light or
Check Right Day‐
Check Right Day‐
time Running Light time Running Light The left or right-hand daytime running lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X Visit a qualified specialist workshop. b
Active Headlamps Active Headlamps
Inoperative Inoperative The active light function is faulty.
X Visit a qualified specialist workshop. b
Malfunction See Malfunction See
Operator's Manual Operator's Manual The exterior lighting is defective.
X Visit a qualified specialist workshop. b
Active Headlamps Active Headlamps
Inoperative Inoperative The light sensor is defective.
X Visit a qualified specialist workshop. b
Switch Off Lights Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X Turn the light switch to Ã.232
Display
messagesOn-board computer and displays