fog light MERCEDES-BENZ C240 2005 W203 Owner's Manual

109 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 49)
and “Turn signals” (
page 50).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch
MOff
Daytime running lamp mode
(
page 111)
UAutomatic headlamp mode
Daytime running lamp mode
(page 111)
CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)
BLow beam headlamps (or high
beam headlamps when the
combination switch is pushed
forward) and parking lamps
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
‡Indicator lamp for front fog lamps
†Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles
drive on the other side of the road than
the country where the vehicle is regis-
tered, you must have the headlamps
modified for symmetrical low beams.
Relevant information can be obtained
at your authorized Mercedes-Benz
Center.

110 Controls in detailLightingManual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and off with the
exterior lamp switch.
Automatic headlamp mode
The following lamps switch on and off
automatically depending on the brightness
of the ambient light:

Low beam headlamps


Tail and parking lamps


License plate lamps


Side marker lamps

Turn the exterior lamp switch to
positionU.
With the SmartKey in starter switch
position1, only the parking lamps will
switch on and off automatically.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
iWith the SmartKey removed from the
starter switch and the driver’s door
open, a warning sounds if the parking
lamps or low beam headlamps are
switched on.
The message
Switch off lights.

appears in the multifunction display
Warning!
G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright
ambient light, for example light from
oncoming traffic.


the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others,
activate headlamps by turning exterior lamp
switch toB when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionU toB with the
vehicle at a standstill. Switching fromU
toB will briefly switch off the
headlamps. Doing so while driving in low
ambient lighting conditions may result in an
accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle's lights at all
times.

112 Controls in detailLightingLocator lighting and night security
illumination
The locator lighting and the night security
illumination are described in the “Control
system” section, see “Setting locator light-
ing” (
page 143) and “Setting night secu-
rity illumination” (
page 143).
Fog lampsFront fog lamps

Switch on the low beam headlamps
(page 109).

Pull out the exterior lamp switch to first
stop.
The front fog lamps switch on.
The green indicator lamp‡ in the
exterior lamp switch comes on
(page 109).

Push down the exterior lamp switch.
The front fog lamps switch off.
The green indicator lamp‡ in the
exterior lamp switch goes out.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from positionU toB with
the vehicle at a standstill. Switching
fromU toB will briefly switch off the
headlamps. Doing so while driving in low
ambient lighting conditions may result in an
accident.
iFog lamps will operate with the parking
lamps and/or the low beam headlamps
on. Fog lamps should only be used in
conjunction with low beam headlamps.
Consult your State or Province Motor
Vehicle Regulations regarding permis-
sible lamp operation.iFog lamps cannot be switched on with
the exterior lamp switch in
positionU. For switching on the fog
lamps, turn the exterior lamp switch to
positionB first.

113 Controls in detail
Lighting
Rear fog lamp (driver’s side only)
Switch on the front fog lamps
(page 112).

Pull out the exterior lamp switch to
second stop.
The rear fog lamp switches on.
The yellow indicator lamp† in the
exterior lamp switch comes on
(page 109).

Push down the exterior lamp switch to
first stop.
The rear fog lamp switches off.
The yellow indicator lamp† in the
exterior lamp switch goes out.
The front fog lamps remain lit.
Combination switch
The combination switch is located on the
left of the steering column.Combination switch1High beam
2High beam flasherHigh beam

Turn the exterior lamp switch to
positionB orU (
page 109).

Push the combination switch in
direction of arrow1 to switch on the
high beam.
The high beam headlamp indicator
lampA in the instrument cluster
comes on (
page 24).

Pull the combination switch in direction
of arrow2 to its original position to
switch off the high beam.
The high beam headlamp indicator
lampA in the instrument cluster
goes out.
High beam flasher

Pull the combination switch briefly in
direction of arrow2.

143 Controls in detail
Control system
Setting locator lighting
With the locator lighting feature activated
and the exterior lamp switch in
positionU, the following lamps will
switch on when the vehicle is unlocked
with the SmartKey during darkness:

Parking lamps


Tail lamps


License plate lamps


Side marker lamps


Front fog lamps
The locator lighting switches off when the
driver’s door is opened.
If you do not open a door after unlocking
with the SmartKey the lamps will switch off
automatically after approximately
40 seconds.

Move the selection marker with
buttonæ orç to the
Lighting

submenu.

Press buttonj ork repeatedly
until the message
Surround lighting

appears in the multifunction display.
The selection marker is on the current
setting.

Press buttonæ orç to switch
the locator lighting function
On.

Turn the exterior lamp switch to
positionU when exiting the vehicle
(page 109).
The locator lighting feature is
activated.Setting night security illumination
(Headlamps delayed shut-off)
Use this function to set whether and how
long you would like the exterior lamps to
illuminate during darkness after exiting the
vehicle and all doors closed.
With the delayed shut-off feature activated
and the exterior lamp switch in
positionU before the engine is turned
off, the following lamps will switch on after
you have removed the SmartKey from the
starter switch:


Parking lamps


Tail lamps


License plate lamps


Side marker lamps


Front fog lamps
If you do not open a door after removing
the SmartKey from the starter switch, the
lamps will switch off automatically after
approximately 60 seconds.

177 Controls in detail
Climate control
Deactivating the climate control system
Deactivating
Set air volume control1 (
page 175)
to position0.
Reactivating

Set air volume control1 (
page 175)
to any speed.
Setting the temperature
Use temperature controls2 and3
(page 175) to separately adjust the air
temperature on each side of the passenger
compartment. You should raise or lower
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).Increasing

Turn temperature control2 or3
slightly to the right.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing

Turn temperature control2 or3
slightly to the left.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
iWhen the air conditioning is switched
off, the outside air supply and circula-
tion are also switched off. Only choose
this setting for a short time. Otherwise
the windows could fog up.
iWhen operating the climate control
system in automatic mode, you will
only rarely need to adjust the tempera-
ture, air volume and air distribution.

323 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Backup lamp, left
The left backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Backup lamp, right
The right backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp
Drive to workshop
Brake lamp illumination is delayed or
lamp is permanently on.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake lamp left
The left brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp right
The right brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Display malfunction.
Visit workshop.
The display for the lamps or the system is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp left
The left front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp right
The right front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front left
side marker lamp
The left front side marker lamp is
malfunctioning.

Replace the bulb as soon as possible.
Front right
sider marker lamp
The right front side marker lamp is
malfunctioning.

Replace the bulb as soon as possible.

325 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
Low beam right
The right low beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:

Visit an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp
left front
The left front parking lamp is
malfunctioning.

Replace the bulb as soon as possible.
Parking lamp
right front
The right front parking lamp is
malfunctioning.

Replace the bulb as soon as possible.
Rear fog lamp
Substitute bulb on
The rear fog lamp is malfunctioning.
A substitute bulb is being used.

Replace the bulb as soon as possible.
Switch off lights.
Headlamps have been turned on with the
driver’s door opened and the SmartKey
removed from the starter switch.

Switch off the headlamps.
Taillamp left
Substitute bulb on

The left tail lamp is malfunctioning.
A substitute bulb is being used.

Replace the bulb as soon as possible.
Taillamp right
Substitute bulb on

The right tail lamp is malfunctioning.
A substitute bulb is being used.

Replace the bulb as soon as possible.

344 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp
assemblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp
adjustment.
Bulbs
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a
distance with the lights on should clear
up the fogging.iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction
display (
page 323)

346 Practical hintsReplacing bulbs
Notes on bulb replacement

Only use 12 volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:


Additional turn signals in the exterior
rear view mirrors


High mounted brake lamp


Xenon* lamps


Front fog lamps
Warning!
G
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before
changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas.
A bulb can explode if you

touch or move it when hot


drop the bulb


scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.