2010 MERCEDES-BENZ CLS low beam

L when driving or when traffic and/or
ambient lighting conditions require you to do
so.
In
low ambient lighting conditions, only switch
from position à to L with the vehicle
at a standstill in a safe location. Switching
from à to L 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.
X Switching on: Turn the exterior lamp
switch to position Ã.
The following lamps come on and go out
depending on the brightness of the ambient
light with the SmartKey in starter switch
position 1 or the KEYLESS-GO start/stop
button pressed once:
R Tail lamps
R Parking lamps
R License plate lamps
R Side marker lamps
When the engine is running, the low-beam
headlamps will also come on and turn off
automatically.
Canada

only: High-beam headlamps are only
available with the exterior lamp switch in
position L.
Daytime running lamp mode In Canada, the daytime running lamp mode is
mandatory

and therefore in a constant mode.
In the USA, the daytime running lamp mode
is deactivated by default.
X Activate the daytime running lamp mode
using the control system, see “Switching daytime running lamp mode on or off (USA
only)”

(Y page 121).
X Turn the exterior lamp switch to position
$ or Ã.
When the engine is running, the low-beam
headlamps come on.
In low ambient lighting conditions, the
following lamps will come on additionally:
R
Tail lamps
R Parking lamps
R License plate lamps
R Side marker lamps
With the daytime running lamp mode
activated
and the engine running, you cannot
switch off the low-beam headlamps manually.
Canada only
With the exterior lamp switch in position
$ or Ã, you cannot switch on the
high-beam headlamps.
The high-beam flasher is available at all times.
X For nighttime driving turn the exterior lamp
switch

to position L to permit activation
of the high-beam headlamps.
When the engine is running, and you
R shift from a driving position to park
position P

with the vehicle at a standstill or
the parking brake is engaged, the low-beam
headlamps will go out with a delay of
3 minutes
R turn the exterior lamp switch to position
T, the low-beam headlamps, the tail
and parking lamps, the license plate lamps
and the side marker lamps come on
R turn the exterior lamp switch to position
L, the manual headlamp mode has
priority over the daytime running lamp
mode
The corresponding exterior lamps come on
(Y page 87). 88
Lighting
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USA only
You can only switch on the high-beam
headlamps in low ambient lighting conditions.
The high-beam flasher is available at all times.
X
For nighttime driving turn the exterior lamp
switch to position L or à to permit
activation of the high-beam headlamps.
When the engine is running, and you turn the
exterior lamp switch to position T or
L, the manual headlamp mode has
priority over the daytime running lamp mode.
The corresponding exterior lamps come on
(Y page 87).
Fog lamps Fog lamps cannot be switched on with the
exterior lamp switch in position Ã.
G
Warning!
In low ambient lighting or foggy conditions,
only switch from position à to L with
the vehicle at a standstill in a safe location.
Switching from à to L will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions may
result in an accident.
Fog 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.
X Switch on the ignition.
X Turn the exterior lamp switch to position
T or L (Y page 87).
X Switching on front fog lamps: Pull out the
exterior lamp switch to first stop.
The green indicator lamp N in the
exterior lamp switch comes on. X
Switching on rear fog lamp: Pull out the
exterior lamp switch to second stop.
The rear fog lamp, the front fog lamps, the
green N and the yellow indicator lamp
R in the exterior lamp switch come on.
X Switching off front fog lamps/rear fog
lamp: Push in the exterior lamp switch to
its stop.
Locator lighting and night security
illumination Locator lighting and night security
illumination are described in the “Control
system” section, see “Switching locator
lighting on or off” (Y page 121) and
“Switching night security illumination
(Headlamps delayed shut-off feature) on or
off” (Y page 122). Combination switch
Turn signals
X
Press the combination switch in direction
of arrow ; or ?.
The corresponding turn signal indicator
lamp ! or # in the instrument
cluster flashes.
The combination switch resets automatically
after major steering wheel movements. Lighting
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X
Press button W or X to select the
display shown in the standard display.
The other display now appears in the
Standard display menu (Y page 112).
Lighting submenu Access the
Lighting submenu via the
Settings menu. Use the Lighting submenu
to change the lamp and lighting settings on
your vehicle.
The following functions are available:
R Switching daytime running lamp mode on
or off (USA only) (Y page 121)
R Switching locator lighting on or off
(Y page 121)
R Setting ambient lighting ( Y page 122)
R Switching night security illumination
(Headlamps delayed shut-off feature) on or
off (Y page 122)
R Switching interior lighting delayed shut-off
on or off ( Y page 123)
Switching daytime running lamp mode on
or off (USA only)
X Press button V or U repeatedly until
the Settings menu appears in the
multifunction display.
X Press button &.
X Move the selection marker with button
W or X to the Lighting submenu.
X Press button & or * repeatedly until
the message Headlamp Mode appears in
the multifunction display.
The selection marker is on the current
setting. X
Press button W or X to select
manual operation ( Manual) or daytime
running lamp mode ( Constant).
With daytime running lamp mode switched on
and the exterior lamp switch in
position $ or Ã, the low-beam
headlamps are switched on when the engine
is running.
In low ambient light conditions the following
lamps will come on additionally:
R Parking lamps
R Tail lamps
R License plate lamps
R Side marker lamps
For more information on the daytime running
lamp mode, see ( Y page 88).
For safety reasons, resetting all the functions
of all submenus to the factory settings while
driving ( Y page 118) will not deactivate the
daytime running lamp mode.
The following message appears in the
multifunction display:
Lighting - Cannot be completely
reset to factory settings while
driving.
Switching locator lighting on or off
With the locator lighting feature activated and
the exterior lamp switch in position Ã, the
following lamps will come on during darkness
when the vehicle is unlocked using button
% on the SmartKey:
R Parking lamps
R Tail lamps
R License plate lamps Control system
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Display messages
Possible causes/consequences and
X Solutionsb Low Beam
Left
or
Low Beam
Right The left or right low-beam lamp is malfunctioning.
X
Halogen headlamp: Replace the bulb as soon as possible
(Y page 266).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b Rear Left
Foglamp The rear fog lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Switch
Off Lights You 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 vehicle
and left the headlamps on.
X
Turn the exterior lamp switch to $ or Ã
(Y page 87).
or
X With the rear fog lamp switched on:
Push in the exterior
lamp switch to its stop. b Tail Lamp
Left
Auxiliary
Bulb On
or
Tail Lamp
Right
Auxiliary
Bulb On The left or right tail lamp is malfunctioning. A substitute bulb
is being used.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Cornering
Lamp Left
or
Cornering
Lamp Right The left or right corner-illuminating front fog lamp is
malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Rear Left
Turn
Signal
or
Rear
Right
Turn
Signal The left or right rear turn signal lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. Vehicle status messages in the multifunction display
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G
Warning!
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire. G
Warning!
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc. What to do if …
Lamps in instrument cluster
Notes If any of the following lamps in the instrument
cluster fails to come on during the bulb self-
check when switching on the ignition, have
the respective bulb checked and replaced if
necessary.
When you switch on the ignition, all lamps in
the instrument cluster come on. The low-
beam headlamp indicator lamp, high-beam
headlamp indicator lamp, and turn signal
indicator

lamps will only come on if activated.
If a lamp in the instrument cluster fails to
come on when the ignition is switched on,
have it checked and replaced if necessary. What to do if …
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humidity, driving the vehicle a distance with
the lights on should clear up the fogging.
Bulbs
You can replace the following bulbs yourself: Halogen headlamps Type
:
Turn signal lamp: 3457AK
; High-beam lamp: H7 55 W
= Parking and standing lamp: W 5 W
? Low-beam lamp: H7 55 W Bi-Xenon headlamps Type
:
Turn signal lamp: 3457AK
; High-beam lamp: H7 55 W License plate lamps Type
:
License plate lamps: C 5 W Replacing bulbs
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Notes on bulb replacement
!
Do not replace LEDs or bulbs not
described in this section. You could
otherwise damage the LEDs, the bulbs or
parts of the vehicle. Only have the LEDs and
bulbs replaced at an authorized Mercedes-
Benz Center. G
Observe Safety notes, see page 266.
R Only use 12-volt bulbs of the same type and
with the specified watt rating.
R Switch the lights off before changing a bulb
to prevent short circuits.
R Always use a clean lint-free cloth when
handling bulbs.
R Your hands should be dry and free of oil and
grease.
R If the newly installed bulb does not come
on, contact an authorized Mercedes-Benz
Center.
i Mercedes-Benz recommends using
Longlife (LL) bulbs. Replacing bulbs for front lamps
G
Warning!
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. It is
recommended to have such work done by a
qualified technician.
Before you start to replace a bulb for a front
lamp, do the following:
X Switch off the ignition.
X Turn the exterior lamp switch to position
$.
X Open the hood (Y page 178). :
Housing cover for low-beam halogen or Bi-
Xenon headlamp
; Housing cover for high-beam headlamp/
high-beam flasher bulb and for parking
and standing lamp bulb =
Bulb socket for turn signal lamp bulb
? Bulb socket for high-beam bulb
A Bulb socket for parking and standing lamp
bulb
B Bulb socket for low-beam bulb
Low-beam bulb (halogen headlamps
only) X
Turn housing cover : counterclockwise
and remove it.
X Turn bulb socket B with the bulb
counterclockwise and remove it.
X Pull the bulb out of bulb socket B.
X Gently press the new bulb into bulb socket
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