fog light MERCEDES-BENZ CLK550 2008 C209 Owner's Manual

Contents
Safety and Security........................... 63
Occupant safety................................... 64
Air bags .......................................... 65
Occupant Classification System ..... 72
Seat belts ....................................... 77
Active head restraints .................... 81
Roll bars (only CLK cabriolet) ......... 82
Children in the vehicle .................... 83
Blocking of rear
side window operation ................... 88
Panic alarm .......................................... 89
Activating ....................................... 89
Deactivating ................................... 89
Driving safety systems ......................... 90
ABS ................................................ 90
BAS ................................................ 92
ESP
®............................................... 92
Anti-theft systems................................ 97
Immobilizer..................................... 97
Anti-theft alarm system .................. 97
Controls in detail............................... 99
Locking and unlocking ....................... 100
SmartKey ..................................... 100
SmartKey with KEYLESS-GO* ...... 103
Checking the batteries in the
SmartKey or SmartKey with
KEYLESS-GO* .............................. 108
Loss of the SmartKey or
SmartKey with KEYLESS-GO* ...... 109
Opening the doors from the inside 109
Opening the trunk ........................ 110
Closing the trunk.......................... 112
Trunk emergency release ............. 117
Valet locking ................................ 118
Automatic central locking ............ 118
Locking and unlocking
from the inside ............................. 119
Seats ................................................. 120
Front seat active head restraints . 120
Rear seat head restraints
(CLK coupe) ................................. 120
Rear seat head restraints
(CLK cabriolet) ............................. 123
Multicontour seat* ....................... 124
Seat heating* ............................... 125Seat ventilation* .......................... 126
Memory function ............................... 127
Storing positions into memory ..... 128
Recalling positions from memory . 128
Lighting ............................................. 129
Exterior lamp switch .................... 129
Combination switch ..................... 133
Corner-illuminating
front fog lamps* (With Bi-Xenon*
headlamps only)........................... 133
Hazard warning flasher ................ 135
Interior lighting ............................ 136
Door entry lamps ......................... 137
Trunk lamp ................................... 137
Instrument cluster ............................. 138
Adjusting instrument cluster
illumination .................................. 138
Coolant temperature indicator ..... 139
Resetting trip odometer ............... 139
Tachometer .................................. 140
Clock............................................ 140
Outside temperature indicator ..... 140
Control system .................................. 141
Multifunction display.................... 141
Multifunction steering wheel........ 142
Menus .......................................... 144

129 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 55)
and “Turn signals” (
page 56).
Exterior lamp switch
iIf you drive in countries where vehicles drive
on the other side of the road than the country
where the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Center.
iVehicles equipped with active Bi-Xenon*
headlamps:
The active Bi-Xenon headlamps monitor your
steering angle and driving speed, then
automatically shift their beams to either side to
better follow the curvature of the road ahead,
increasing usable illumination over conventional
headlamps.
1‚Standing lamps, left (turn left two
stops)
2ˆStanding lamps, right (turn left
one stop)
3MOff
Daytime running lamp mode
(
page 131)
4UAutomatic headlamp mode
Daytime running lamp mode
(
page 131)
5CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)
6BLow beam headlamps or high
beam headlamps.
7‡Front fog lamps
8†Rear fog lamp
iIf you hear a warning signal you have
forgotten to switch off the low beam headlamps
or the parking lamps before opening the driver’s
door.
In addition the message
Switch Off Lights
appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message
Switch Off Lights or Re-
move Key
appears in the multifunction display
remove the SmartKey from the starter switch or
switch off the automatic headlamp mode.
!Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.

130 Controls in detail
Lighting
Low beam headlamps
The low beam headlamps can be switched
on and off with the exterior lamp switch us-
ing the manual headlamp mode.
Turn the exterior lamp switch to
positionB.
The following lamps switch on:

Low beam headlamps

Tail and parking lamps

License plate lamps

Side marker lamps
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 or the KEYLESS-GO*
start/stop button pressed once, the
tail and parking lamps, the license
plate lamps and the side marker lamps
will switch on and off depending on the
brightness of the ambient light.
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 depending on the brightness of the
ambient light.
Warning!G
If the exterior lamp switch is set toU,
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 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 in a safe location.
Switching from U to B 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.
iCanada only:
High beam headlamps are only available with the
exterior lamp switch in position B.

132 Controls in detail
Lighting
Locator lighting and night security
illumination
Locator lighting and night security illumi-
nation are described in the “Control sys-
tem” section, see “Setting locator lighting”
(
page 163) and “Setting night security il-
lumination (Headlamps delayed shut-off)”
(
page 164).
Fog lamps
Front fog lamps
Turn the exterior lamp switch to
positionC orB (
page 55).
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 129).
Push in the exterior lamp switch.
The front fog lamps switch off.The green indicator lamp‡ in the
exterior lamp switch goes out.
Rear fog lamp (driver’s side only)
Turn the exterior lamp switch to
positionB (
page 55).
Pull out the exterior lamp switch to
second stop.
The front fog lamps and the rear fog
lamp switch on.
The yellow indicator lamp† in the
exterior lamp switch comes on
(
page 129).
Push in 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.
Warning!G
In low ambient lighting or foggy conditions,
only switch from position U to B with
the vehicle at a standstill in a safe location.
Switching fromU to B 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
permissible lamp operation.
iFog lamps cannot be switched on with the
exterior lamp switch in positionU. To switch
on the fog lamps, turn the exterior lamp switch to
positionB first.

133 Controls in detail
Lighting
Combination switch
Combination switch
1High beam
2High beam flasherHigh beam
Turn the exterior lamp switch to
positionB (
page 129).
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 28).
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
the direction of arrow2.Corner-illuminating front fog lamps*
(With Bi-Xenon* headlamps only)
The corner-illuminating front fog lamps
improve illumination of the area in the
direction into which you are turning.
The corner-illuminating front fog lamps will
operate with the engine running and with

the exterior lamp switch in
positionB (
page 129)
or

the exterior lamp switch in
positionU (
page 129)
or

the daytime running lamp mode
activated (
page 131)
iThe corner-illuminating front fog lamps will
only come on in low ambient lighting conditions.
iIf you are driving faster than 25 mph
(40 km/h) or have the front fog lamps switched
on, the corner-illuminating front fog lamps
function is not available.

134 Controls in detail
Lighting
Driving forward
Switching on corner-illuminating front
fog lamps
Switch on the left or right turn signal
(
page 56), depending on whether
you are turning left or right.
The respective front fog lamp comes on
and illuminates the area in the
direction into which you are turning.
or
Turn steering wheel in desired
direction.
The front fog lamp on the side of your
steering direction comes on.Switching off corner-illuminating front
fog lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the
corner-illuminating front fog lamps if they
where activated by switching on the left or
right turn signal.
If the turn signal should stay on after
making the turn, the turn signal and the
corner-illuminating front fog lamp can be
switched off by returning the combination
switch to its original position.
iIf you have switched on the turn signal for
one side but turn the steering wheel in the
opposite direction, the corner-illuminating front
fog lamp comes on for the side indicated by the
turn signal.
The corner-illuminating front fog lamp remains lit
for a maximum of three minutes. Afterward, it
goes out even if the turn signal is still switched
on.
iThe corner-illuminating front fog lamps tem-
porarily come on, on both sides of the vehicle if
you turn the steering wheel in one direction and
then again in the other direction shortly
thereafter.
iThe corner-illuminating front fog lamps will
come on automatically depending on the
steering angle, even if you did not switch on
either turn signal.
If the corner-illuminating front fog lamps came
on automatically, they will also go out
automatically depending on the steering angle.iThere may be a brief delay before the
corner-illuminating front fog lamps switch off.

135 Controls in detail
Lighting
Driving in reverse
Switching on corner-illuminating front
fog lamps
Place the gear selector lever in
positionR.
The front fog lamp opposite to your
steering direction comes on.
Switching off corner-illuminating front
fog lamps
Place the gear selector lever out of
positionR.
The respective front fog lamp goes out.
Hazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter switch
or with the SmartKey with KEYLESS-GO*
removed from the vehicle.
The hazard warning flasher switches on
automatically when an air bag deploys.
The hazard warning flasher switch is
located on the center console.
1Hazard warning flasher switchSwitching on hazard warning flasher
Press hazard warning flasher
switch1.
All turn signal lamps are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1
again.
iWith the hazard warning flasher activated
and the combination switch set for either left or
right turn, only the respective left or right turn
signals will operate when the ignition is switched
on (
page 40).
iIf the hazard warning flasher has been
activated automatically, press hazard warning
flasher switch1 once to switch it off.

163 Controls in detail
Control system
With daytime running lamp mode activated
and the exterior lamp switch in
positionM or U, the low beam
headlamps are switched on when the
engine is running.
In low ambient light conditions the
following lamps will switch on additionally:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps
For more information on the daytime run-
ning lamp mode, see “Lighting”
(
page 129).Setting locator lighting
With the locator lighting feature activated
and the exterior lamp switch in
positionU, the following lamps will
switch on during darkness when the vehi-
cle is unlocked using buttonΠon the
SmartKey or SmartKey with
KEYLESS-GO*:

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
the vehicle 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 Light.
Function
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the locator lighting function
On or Off
Turn the exterior lamp switch to
position U when exiting the vehicle.
The locator lighting feature is
activated.
iFor safety reasons, resetting the Lighting
submenu to factory settings (
page 156) while
driving will not deactivate the daytime running
lamp mode.
The following message appears in the
multifunction display:
Cannot be completely reset to factory
settings while driving
.

164 Controls in detail
Control system
Setting night security illumination
(Headlamps delayed shut-off feature)
Use this function to set whether you would
like the exterior lamps to remain on for
15 seconds during darkness after exiting
the vehicle and closing all doors.
With the headlamps delayed shut-off
feature activated and the exterior lamp
switch in positionU before the engine
is turned off, the following lamps will
switch on when the engine is turned off:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps

Front fog lamps
If after turning off the engine you do not
open a door or do not close an opened
door, the lamps will automatically switch
off after 60 seconds.
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Headlamps Delayed
Shut-off
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the headlamps delayed shut-off feature
Onor Off.
Turn the exterior lamp switch to
position U before turning off the
engine.
The headlamps delayed shut-off
feature is activated.You can temporarily deactivate the head-
lamps delayed shut-off feature:
Before exiting the vehicle, turn the
SmartKey in the starter switch to
position0.
Then turn it to position2 and back
to0.
The headlamps delayed shut-off
feature is deactivated. It will reactivate
as soon as you reinsert the SmartKey in
the starter switch.
Vehicles with KEYLESS-GO*:
Press the KEYLESS-GO start/stop but-
ton on the gear selector lever
(
page 40).

414 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. Rear Foglamp
Auxiliary Bulb On

The foglamp is malfunctioning. A backup
bulb is being used.Replace the bulb as soon as possible
(
page 448).
Reverse Lamp
LeftThe left backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Reverse Lamp
RightThe right backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Switch Off LightsYou have removed the SmartKey from the
starter switch, opened the driver’s door
and left the headlamps on or removed the
SmartKey with KEYLESS-GO* from the ve-
hicle and left the headlamps on.Switch off the headlamps.
Switch Off Lights
Or
Remove KeyThe exterior lamp switch is in
positionU, and the SmartKey or
SmartKey with KEYLESS-GO* is in the
starter switch. The parking lamps remains
on.Remove SmartKey or SmartKey with
KEYLESS-GO* from starter switch.
or
Turn the exterior lamp switch to
positionM.
Tail Lamp
Left
Auxiliary Bulb On

The left tail lamp is malfunctioning. A
backup bulb is being used.Replace the bulb as soon as possible
(
page 448).