2004 MERCEDES-BENZ CLK-CLASS fog light

120 Controls in detailLighting
Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on and off with the
exterior lamp switch. For exterior lamp
switch, see “Exterior lamp switch”
(page 119).
Automatic headlamp mode
The parking lamps, low beam headlamps
and license plate lamps switch on and off
automatically depending on the brightness
of the ambient light.

Turn the exterior lamp switch toU.
iIf you remove the SmartKey and open
the driver’s door while the parking
lamps or low beam headlamps are
switched on,

a warning sounds


$ appears in the multifunction
display


the message
Turn off lamps!
ap-
pears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
Warning!
G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient 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, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position U to B with the
vehicle at a standstill. Switching from U
to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.
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.
ProCarManuals.com

121 Controls in detail
Lighting
Daytime running lamp mode
Turn exterior lamp switch to
positionM orU.
When the engine is running, the low beam
headlamps are automatically switched on.
In low ambient light conditions the parking
lamps will also switch on.
Canada only
When you shift from a driving position to
positionN orP, the low beam switches off
(with a three-minute delay).
For nighttime driving you should turn the
exterior lamp switch to positionB to
permit activation of the high beam head-
lamps.USA only
The high beam headlamps can also be ac-
tivated when driving with the daytime run-
ning lamp mode activated and exterior
lamp switch in positionM.
To activate the daytime running lamp
mode, see “Setting daytime running lamp
mode (USA only)” (
page 145).
Locator lighting and night security illu-
mination
Locator lighting and night security illumi-
nation are described in the control system
section, see “Setting locator lighting”
(
page 146) and see “Setting night secu-
rity illumination (Exterior lamps delayed
shut-off)” (
page 147).
iWith the daytime running lamp mode
activated, the low beam headlamps will
not be switched off automatically.iThe front fog lamps and rear fog lamp
cannot be switched on manually with
exterior lamp switch in positionU.
To activate the fog lamps, turn exterior
lamp switch to positionB and pull
the exterior lamp switch to first or sec-
ond stop (
page 122).
iSee notes on the exterior lamp switch
(page 119).
ProCarManuals.com

122 Controls in detailLightingSwitching on fog lamps
Switching on front fog lamps

Make sure the low beam headlamps
are switched on.

Pull out exterior lamp switch to first
stop.
The green indicator lamp‡ beside
the lamp switch comes on.Switching on rear fog lamp

Make sure the low beam headlamps
are switched on.

Pull out exterior lamp switch to second
stop.
The yellow indicator lamp† beside
the lamp switch comes on.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from position U to B with
the vehicle at a standstill. Switching from
U to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.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.
iThe front fog lamps and rear fog lamp
cannot be switched on manually with
exterior lamp switch in positionU.
To activate the fog lamps, turn exterior
lamp switch to positionB and pull
the exterior lamp switch to first or sec-
ond stop (
page 122).
ProCarManuals.com

146 Controls in detailControl system
With daytime running lamp mode se-
lected and the exterior lamp switch at
position0, the following lamps will
come on automatically when the en-
gine is turned on:

Parking lamps and low beam head-
lamps


License plate lamps (in low ambient
light conditions) Setting locator lighting
During darkness, the following lamps will
come on when the exterior lamp switch is
in position U, the locator lighting fea-
ture is activated, and the vehicle is un-
locked by remote control:


Parking lamps


Tail lamps


License plate lamps


Front fog lamps
To activate locator lighting:

Make sure the function surround light-
ing is set to
on, see (
page 146).

Turn the exterior lamp switch to posi-
tion U.
The locator lighting switches off when the
driver’s door is opened. It switches off au-
tomatically after a period of approximately
40 seconds.

Move the selection marker with
theæ orç button to the
Light-
ning
submenu.

Press buttonj ork repeatedly
until you see this message in the dis-
play:
Function Surround lighting
.
The selection marker is on the current
setting.

Pressæ orç to select the de-
sired setting.
The locator lighting will be switched on
or off.
iIf you turn the exterior lamp switch to
another position, the corresponding
lamp(s) will switch on.
For safety reasons, resetting the Lighting
submenu to factory settings
(
page 140) while driving will not re-
set the daytime running lamp mode.
In the display you will then see the mes-
sage:
Lighting – Cannot be com-
pletely reset to factory settings
while driving
.

ProCarManuals.com

147 Controls in detail
Control system
Setting night security illumination
(Exterior lamps delayed shut-off)
Use the
Headlamps delayed shut-off

function to set whether and for how long
you would like the exterior lamps to illumi-
nate during darkness after all doors are
closed. When the delayed shut-off feature
is activated and the exterior lamp switch is
in position U, the following lamps will
remain lit after you remove the SmartKey
from the starter switch:


Parking lamps


Tail lamps


License plate lamps


Front fog lampsTo activate night security illumination:

Select delayed shut-off period,
see (
page 147).

Turn the exterior lamp switch to posi-
tion U.
To select delayed shut-off period:

Move the selection marker with
theæ orç button to the
Light-
ing
submenu.

Press buttonj ork repeatedly
until you see this message in the dis-
play:
Headlamps delayed shut-off
.
The selection marker is on the current
setting.

Pressæ orç to select the de-
sired lamp-on period.You can select:


0 s
, the delayed shut-off feature is
deactivated


15 s
, 30 s
, 45 s
or
60 s
, the delayed
shut-off feature is activated
You can temporarily deactivate the de-
layed shut-off feature:

Before leaving the vehicle turn the
SmartKey in the starter switch to
position0.

Then turn it to position2 and back
to0.
The delayed shut-off feature is deacti-
vated. It will reactivate as soon as you
reinsert the SmartKey in the starter
switch.
For vehicles with KEYLESS-GO*:

Press the KEYLESS-GO start/stop but-
ton on the gear selector lever
(page 33).
iYou can reactivate this function within
ten minutes by opening a door.
If you do not open a door after remov-
ing the SmartKey, the lamps will auto-
matically switch off after 60 seconds.
ProCarManuals.com

372 Practical hintsReplacing bulbs
Replacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies 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 your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
Bulbs
iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
up the fogging.
iBackup bulbs will be brought into use
when the following lamps malfunction:

Turn signal lamps


Brake lamps


Parking lamps


Tail lamps
ProCarManuals.com

374 Practical hintsReplacing bulbs

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 follow-
ing lamps replaced by an authorized
Mercedes-Benz Center.

Additional turn signal lamps in the
exterior rear view mirrors


High mounted brake lamp


Bi-Xenon* lamps


Front fog lamps
Replacing bulbs for front lamps
Front lamps halogen-type
1Housing cover for low beam lamp
2Housing cover for high beam lamp3Bulb socket for turn signal lamp
4Low beam bulb
5High beam bulb
6Parking and standing lamp
ProCarManuals.com

378 Practical hintsReplacing bulbsReplacing bulbs for rear lamps
Tail lamp assemblies
1Brake lamp
2Turn signal lamp
3Backup lamp
4Standing and side marker lamp
5Rear fog lamp (driver’s side)/tail
Switch off the lights.

Open trunk.

Swing the trim panel covering the cor-
responding rear lights to the side.

Squeeze tabs together and remove the
bulb holder with the bulb.

Twist bulb counterclockwise and pull
out of bulb holder.

Insert new bulb into the holder and turn
it clockwise.

Reinstall bulb holder. The tabs must au-
dibly click.

Close trim panel.

Place the housing cover back on so
that its tabs click in place. License plate lamp
1Screws

Switch off the lights.

Loosen both screws1 and remove
lamp.

Replace the tubular lamp and reinstall
lamp.

Retighten the screws.
ProCarManuals.com