2007-2013 Mercedes C Class 4 Door Lights and windshield wipers User Manual
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Lights and windshield wipers for Your Mercedes C Class 4 Door Second Generation (2007-2013)

Useful information ............................ 110
Exterior lighting ................................ 110
Interior lighting ................................. 115
Replacing bulbs ................................. 116
Windshield wipers ............................ 121
109
Lights and windshield wipers
Useful information
i
This 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.
i
Read the information on qualified
specialist workshops: (Y page 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.
Notes on 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:
R
the light switch
R
the combination switch (Y page 112)
R
the on-board computer (Y page 209)
Light switch
Operation
1W
Left-hand standing lamps
2X
Right-hand standing lamps
3T
Parking lamps, license plate and
instrumentclusterlighting
4Ã
Automatic headlamp mode,
controlled by the light sensor
5L
Low-beam/high-beam headlamps
BR
Rear fog lamp
CN
Fog 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.
X
Turn the light switch to Ã.
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you:
R
remove the SmartKey fromthe ignition lock
R
open the driver's door with the SmartKey
in position 0.
110
Exterior lighting
Lights and windshield wipers
Automatic headlamp mode
G
WARNING
When the lightswitch is set to Ã, 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
L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
à 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):
R
SmartKey in position 1 in the ignition lock:
the parking lamps are switched on or off
automatically depending on the brightness
of the ambient light.
R
With 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.
X
To switch on automatic headlamp
mode: turn the light switch to Ã.
Only for Canada:
The daytime running lamps improve the
visibility of your vehicle during the day. The
daytime running lamps function is required by
law in Canada. It cannot therefore be
deactivated.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position to P, 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 T, you turn on the
daytime running lamps and parking lamps.
If the engine is running and you turn the light
switch to L, the manual settings take
precedence over the daytime running lamps.
USA only:
The daytime running lamps improve the
visibility of your vehicle during the day. To do
this, the daytime running lamps function must
be switched on using the on-board computer
(Y page 209).
If the engine is running and you turn the light
switch to T or L, the manual settings
take precedence over the daytime running
lamps.
Low-beam headlamps
G
WARNING
When the light switch is set to Ã, 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, turn the light switch to
L.
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
L position. This is a particularly useful
function in the event of rain and fog.
X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2 or start the engine.
X
Turn the light switch to L.
The green L 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
Exterior lighting
111
Lights and windshield wipers
Z
with the parking lamps and low-beam
headlamps.
X
To switch on the front fog lamps: turn
the SmartKey in the ignitionlock to position
2 or start the engine.
X
Turn the light switch to L or Ã.
X
Press the N button.
The green N indicator lamp in the
instrument cluster lights up.
X
To switch off the front fog lamps: press
the N button.
The green N indicator lamp in the
instrument cluster goes out.
Only vehicles with front fog lamps have the
fog lamps function.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
thick fog. Please take note of the country-
specific regulations for the use of rear fog
lamps.
X
To switch on the rear fog lamps: turn the
SmartKey in the ignition lock to position 2
or start the engine.
X
Turn the light switch to L or Ã.
X
Press the R button.
The yellow R indicator lamp in the
instrument cluster lights up.
X
To switch off the rear fog lamp: press the
R button.
The yellow R indicator lamp in the
instrument cluster goes out.
Parking lamps
!
If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start.Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the T parking lamps
for several hours. If possible, switch on the
X right or the W left standing lamp.
X
To switch on: turn the light switch to
T.
Depending on the equipmentlevel, the
green indicator lamp or the scale
illumination in the instrument cluster light
up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is
illuminated.
X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is
in position 0.
X
Turn the light switch to W (left-hand side
of the vehicle) or X (right-hand side of
the vehicle).
Combination switch
Turn signal
:
High-beam headlamps
;
Turn signal, right
=
High-beam flasher
?
Turn signal, left
X
To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ; or ?.
The corresponding turn signal flashes three
times.
X
To indicate: press the combination switch
beyond the pressure point in the direction
of arrow ; or ?.
112
Exterior lighting
Lights and windshield wipers
High-beam headlamps
X
To switch on the high-beam headlamps:
turn the SmartKey in the ignition lock to
position 2 or start the engine.
X
Turn the light switch to L or Ã.
X
Press the combination switch beyond the
pressure point in the direction of
arrow :.
In the à position, the high-beam
headlamps are only switched on when it is
dark and the engine is running.
The K indicator lamp in the instrument
cluster lights up when the high-beam
headlamps are switched on.
X
To switch off the high-beam
headlamps: move the combination switch
back to its normal position.
The K indicator lamp in the instrument
cluster goes out.
High-beam flasher
X
To switch on: turn the SmartKey in the
ignitionlock to position 1 or 2 or start the
engine.
X
Pull the combination switch in the direction
of arrow =.
Hazard warning lamps
The hazard warning lamps automatically
switch on if:
R
an air bag is deployed.
R
the vehicle is slowed down rapidly from a
speed of over 45 mph (70 km/h) and
comes to a halt.
X
To 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.
X
To switch off the hazard warning
lamps: press button :.
If the vehicle returns to a speed of over
6mph (10 km/h) after a full application of the
brakes, the hazard warning lamps are
deactivated automatically.
i
The 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 (Y page 121). When you
switch off the ignition, the automatic
headlamp cleaning system is reset and
counting is resumed from 0.
Active light function
Exterior lighting
113
Lights and windshield wipers
Z
The active light function is a system that
moves the headlamps according to the
steering movements of the front wheels. In
this way, relevant areas remain illuminated
while driving. This allows you to recognize
pedestrians, cyclists and animals.
Active: when the lights are switched on.
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
when the low-beam headlamps are switched
on.
Active:
R
if you are driving at speeds below
25mph (40 km/h) and switch on the turn
signal or turn the steering wheel.
R
if 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
signals or turn the steering wheel to the
straight-ahead position.
The cornering light function may remain lit for
a short time, but is automatically switched off
after no more than three minutes.
Adaptive Highbeam Assist
G
WARNING
Adaptive Highbeam Assist does not recognize
road users:
R
who have no lights, e.g. pedestrians
R
who have poor lighting, e.g. cyclists
R
whose 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 similarsituations, 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.
You can use this function to set the
headlamps to change betweenlow 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
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.
114
Exterior lighting
Lights and windshieldwipers
X
To activate: activate the Adaptive
HighbeamAssist function using the on-
board computer (Y page 210).
X
Turn the light switch to Ã.
X
Press the combination switch beyond the
pressure point in the direction of arrow :
(Y page 112).
If it is dark and the light sensor activates
the low-beam headlamps, the _
indicator lamp in the instrument cluster
lights up.
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. The K indicator 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. The K indicator lamp in
the instrument cluster goes out. The _
indicator lamp in the instrument cluster
stays on.
X
To deactivate: move the combination
switch back to its normal position.
The _ indicator lamp in the instrument
cluster goes out.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X
Switch 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:
X
Have the headlamps checked at a qualified
specialist workshop.
Interior lighting
Overview of interior lighting
Front overhead control panel
:
u Switches the rear interior lighting
on/off
;
| Switches the automatic interior
lighting control on/off
=
p Switches the right-hand front
reading lamp on/off
Interior lighting
115
Lights and windshield wipers
Z
?
c Switches the front interior lighting
on/off
A
p Switches the left-hand front reading
lamp on/off
Rear-compartment overhead control panel
:
p Switches the right-hand reading
lamp on/off
;
p Switches the left-hand reading lamp
on/off
Interior lighting control
General notes
In order to prevent the vehicle's battery from
discharging, the interiorlighting functions are
automatically deactivated after some time
unless the SmartKey is in position 2 in the
ignition lock.
Automatic interior lighting control
X
To activate/deactivate: press the |
button.
When the automatic interior lighting
control is activated, the button is flush with
the overhead control panel.
The interior lighting automatically switches
on if you:
R
unlockthe 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
ignition lock. You can activate this delayed
switch-off using the on-board computer
(Y page 210).
Manual interior lighting control
X
To switch the front interior lighting on/
off: press the c button.
X
To switch the interior lighting on/off:
press the u button.
X
To switch the reading lamps on/off:
press the p button.
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
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
116
Replacing bulbs
Lights and windshield wipers
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.
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,
consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always use a lint-
free cloth or only touch the base of the bulb
when installing.
Only use bulbs of the correcttype.
If the new bulb still does notlight up, consult
a qualified specialist workshop.
Bulbs and lamps are an importantaspect 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.
Halogen headlamps
:
Parking lamp/standing lamp: W 5W
;
High-beamheadlamp: H7 55 W
=
Low-beam headlamp: H7 55 W
Bi-Xenon headlamps
:
Cornering lamp: H7 55 W
Tail lamp
:
Backup lamp: P 21 W
;
Brake lamp: P 21 W
=
Brake lamp/parking lamp: P 21 W
Replacing bulbs
117
Lights and windshield wipers
Z
Changing the front bulbs
Low-beamheadlamps (halogen
headlamps)
G
WARNING
These bulbs are pressurized.
They can explode when being changed if:
R
they are still hot
R
they hit an object when being removed
R
they are dropped
There is a risk of injury.
You should wear eye protection and clean
gloves when you are changingabulb. If
necessary, have bulbs changed at a qualified
specialist workshop.
X
Switch off the lights.
X
Open the hood.
X
Turn housing cover : counter-clockwise
and pull it out.
X
Turn bulb holder ; counter-clockwise and
pull it out.
X
Take the bulb out of bulb holder ;.
X
Insertthe new bulb into bulb holder ;.
X
Insert bulb holder ; into the lamp and turn
it clockwise.
X
Align housing cover : and turn it
clockwise until it engages.
High-beam headlamps (halogen
headlamps)
G
WARNING
These bulbs are pressurized.
They can explode when being changed if:
R
they are still hot
R
they hit an object when being removed
R
they are dropped
There is a risk of injury.
You should wear eye protection and clean
gloves when you are changing a bulb. If
necessary, have bulbs changed at a qualified
specialist workshop.
X
Switch off the lights.
X
Open the hood.
X
Turn housing cover : counter-clockwise
and pull it out.
X
Turn bulb holder ; counter-clockwise and
pull it out.
X
Take the bulb out of bulb holder ;.
X
Insert the new bulb into bulb holder ;.
X
Insert bulb holder ; into the lamp and turn
it clockwise.
X
Align housing cover : and turn it
clockwise until it engages.
118
Replacing bulbs
Lights and windshield wipers
Parking lamps/standing lamps
(halogen headlamps)
X
Switch off the lights.
X
Open the hood.
X
Turn housing cover : counter-clockwise
and pull it out.
X
Pull out bulb holder ;.
X
Take the bulb out of bulb holder ;.
X
Insert the new bulb into bulb holder ;.
X
Insert bulb holder ;.
X
Align housing cover : and turn it
clockwise until it engages.
Cornering light function (Bi-Xenon
headlamps)
G
WARNING
These bulbs are pressurized.
They can explode when being changed if:
R
they are still hot
R
they hit an object when being removed
R
they are dropped
There is a risk of injury.
You should wear eye protection and clean
gloves when you are changing a bulb. If
necessary, have bulbs changed at a qualified
specialist workshop.
X
Switch off the lights.
X
Open the hood.
X
Turn housing cover : counter-clockwise
and pull it out.
X
Turn bulb holder ; counter-clockwise and
pull it out.
X
Take the bulb out of bulb holder ;.
X
Insert the new bulb into bulb holder ;.
X
Insert bulb holder ; into the lamp and turn
it clockwise.
X
Align housing cover : and 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
and remove the first-aid kit before you can
change the bulbs in the tail lamps.
Right-hand side trim panel
Replacing bulbs
119
Lights and windshieldwipers
Z
Left-hand side trim panel (vehicles with a sound
system)
X
To open: turn rotary catch : 90° in the
direction of the arrow and remove side trim
panel ;.
X
To close: insert side trim panel ; and turn
rotary catch : 90° in the opposite
direction to the arrow.
Left-hand side trim panel (vehicles withoutasound
system)
X
To open: loosen side trim panel : at the
top and fold it down in the direction of the
arrow.
X
To close: insert side panel :.
Tail lamp
X
Switch off the lights.
X
Open the trunk.
X
Open the side trim panel (Y page 119).
X
Remove the tail lamp connector
X
Simultaneously press retaining lugs : in
the direction of the arrow and slightly pull
out the bulb holder with the bulbs.
X
Remove the connector for LED light
functions from the top of the bulb holder.
X
Pull the bulb holder out with the bulbs.
:
Backup Light
;
Brake lamp
=
Parking lamp/brake lamp
X
Press the respective bulb :, ; or = back
and turn it counter-clockwise to remove it
from the bulb holder.
X
Insert the new bulb into the bulb holder and
turn it clockwise.
X
Reinsert the connector for LED light
functions in the bulb holder.
X
Insert the bulb holder againand lock it in
place.
X
Insert the tail lamp connector.
X
Close the side trim panel (Y page 119).
120
Replacing bulbs
Lights and windshield wipers
Windshield wipers
Switching the windshield wipers on/
off
!
Do not operate the windshield wipers
whenthe 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 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.
Cleanthe windshield using washer fluid
after washing the vehicle in an automatic
car wash.
Combination switch
1
$ Windshield wiper off
2
Ä Intermittent wipe, low
5
3
Å Intermittent wipe, high
6
4
° Continuous wipe, slow
5
¯ Continuous wipe, fast
B
í Single wipe/î To wipe the
windshield using washer fluid
X
Switch on the ignition.
X
Turn the combination switch to the
corresponding position.
!
Intermittent wiping with rain sensor: due
to optical influences and the windshield
becoming 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.
In the Ä or Å position, the appropriate
wiping frequency is set automatically
according to the intensity of the rain. In
the Å position, the rain sensor is more
sensitive than in the Ä 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.
Replacing the wiper blades
Important safety notes
G
WARNING
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.
!
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.
5
Rain sensor set to low sensitivity.
6
Rain sensor set to high sensitivity.
Windshield wipers
121
Lights and windshield wipers
Z
Mercedes-Benzrecommends that you have
the wiper blades changed at aqualified
specialist workshop.
!
To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades
Removing the wiper blades
X
Remove the SmartKey from the ignition
lock or turn it to position 0 (KEYLESS-GO).
X
Fold the wiper arm away from the
windshield until it engages.
X
Firmly press release knob : and pull the
wiper blade upwards from thewiper arm in
the direction of the arrow.
Installing the wiper blades
X
Position the new wiper blade in the retainer
on the wiper arm and slide it into place in
the opposite direction to the arrow.
The wiper blade audibly engages.
X
Make sure that wiper blade is seated
correctly.
X
Fold the wiper arm back onto the
windshield.
122
Windshield wipers
Lights and windshield wipers
Problems with the windshield wipers
Problem Possible causes/consequences and M Solutions
The windshield wipers
are jammed.
Leaves or snow, for example, may be obstructing the windshield
wiper movement.The wiper motor has been deactivated.
X
For safety reasons, you should remove the SmartKey from the
ignition lock.
or
X
Switch off the engine using the Start/Stop button and open the
driver's door.
X
Remove the cause of the obstruction.
X
Switch the windshield wipers back on.
The windshield wipers
fail completely.
The windshield wiper drive is malfunctioning.
X
Select another wiper speed on the combination switch.
X
Have the windshield wipers checked at a qualified specialist
workshop.
The spray nozzles are
misaligned.
The windshield washer fluid from the spray nozzles no longer hits
the center of the windshield. The spray nozzles are misaligned.
X
Have the spray nozzles adjusted at a qualified specialist
workshop.
Windshield wipers
123
Lights and windshield wipers
Z
124

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