2012 MERCEDES-BENZ CLS-Class low beam

If you are driving faster than 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 faster than approximately
35 mph (55 km/h) and no other road users
are identified:
the high-beam headlamps are switched on
automatically. The K indicator lamp in
the instrument cluster also lights up.
If you are driving slower than approximately
30 mph (45 km/h), or other road users are
identified, or the roads are sufficiently
illuminated:
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.XTo deactivate: move the combination
switch back to its normal position.
The _ indicator lamp in the instrument
cluster goes out.GWARNING
The Adaptive Highbeam Assist is only an aid
intended to support you while driving. The
driver is and remains responsible for proper
vehicle lighting in accordance with the
prevailing light, sight and traffic conditions.
The system may be impaired or unavailable
when
R visibility is poor, e.g. due to snow, rain, fog,
or heavy spray
R the optical sensor area of the windshield is
dirty, fogged up, or covered by a sticker for
example
The system cannot recognize the following
road users:
R Road users without a lighting system of
their own, e.g. pedestrians
R Road users with dim lighting of their own,
e.g. cyclists
R Road users whose lighting is obstructed,
e.g. road users behind a guardrail
R In some seldom cases, even road users with
a lighting system of their own may be
recognized too late or not at all.
The automatic high-beam headlamps will then
not be deactivated or it will be activated in
spite of preceding or oncoming road users.
This could endanger you and/or others and
cause an accident. Always pay close attention
to the traffic situation and switch off the high
beam manually if necessary.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
XDrive with the headlamps switched on.
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:
XHave the headlamps checked at a qualified
specialist workshop.110Exterior lightingLights and windshield wipers

XTo show menu bar ;: press the =
or ; button on the steering wheel.
Further information on displaying the
transmission position ( Y page 140).
The following messages may appear in the
multifunction display:
X j YActive Parking Assist ( Y page 175)_Adaptive Highbeam Assist
( Y page 109)ÀATTENTION ASSIST ( Y page 180)ÃLane Keeping Assist ( Y page 186) or
Active Lane Keeping Assist
( Y page 191)HOLDHOLD function ( Y page 166)ÄPRE-SAFE ®
Brake ( Y page 67)Displays and operation199On-board computer and displaysZ

Lights
Setting the brightness of the instrument
cluster lighting and switches
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Brightness Display/Switches:
function.
You will see the selected setting.XPress the a button to confirm.XPress the : or 9 button to adjust the
brightness to any level from Level 1 to
Level 5 (bright).XPress the a or % button to save the
setting.
Switching the daytime running lamps on/
off
This function is not available in Canada.
If you have activated the Day Lights
function and the light switch is set to Ã,
the daytime running lamps are automatically
switched on during daylight hours when the
engine is running.
In the dark, the following also light up:
R the low-beam headlamps
R the parking lamps
R the tail lamps
R the license plate lamp
R the side marker lamps
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Day Lights function.
If the Daytime Running Lights have
been switched on, the cone of light and the
W symbol in the multifunction display
are shown in red.XPress the a button to save the setting.
Switching Adaptive Highbeam Assist on/
off
XPress the = or ; button on the
steering wheel to select the Sett. menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress : or 9 to select the Adapt.
Highbeam function.
If the Adapt. Highbeam function has been
switched on, the cone of light and the
_ symbol in the multifunction display
are shown in red.XPress the a button to save the setting.
Setting the brightness of the ambient
lighting
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select
Amb. light +/- .XPress the a button to confirm.XPress the : or 9 button to adjust the
brightness to any level from Off to Level
5 (bright).XPress the a or % button to save the
setting.Menus and submenus209On-board computer and displaysZ

Setting the ambient lighting colorXPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Light submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Amb. color function.XPress the a button to confirm.XPress the : or 9 button to set the
color to SOLAR, NEUTRAL or POLAR .XPress the a or % button to save the
setting.
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
If you have activated the Surround
Lighting function and the light switch is in
the à position,
R if it is dark, the exterior lighting remains on
for another 40 seconds after you unlock the
vehicle using the SmartKey.
the exterior lighting switches off if you open
the driver’s door.
R if it is dark, the exterior lighting remains on
for another 15 seconds when the doors are
closed.
If the engine is switched off and then none
of the doors are opened, or if an open door
is not closed, the exterior lighting goes out
after 60 seconds.
If you activate the Surround Lighting
function, the following light up depending on
the vehicle's equipment:
R the parking lamps
R the low-beam headlamps
R the daytime running lamps
R the side marker lamps
R the surround lighting in the exterior mirrors
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Surround lighting function.
When the Surround Lighting function is
activated, the light cone and the area
around the vehicle are displayed in red in
the multifunction display.XPress the a button to save the setting.
Deactivating delayed switch-off of the
exterior lighting temporarily:
XBefore leaving the vehicle, turn the
SmartKey to position 0 in the ignition lock.XTurn the SmartKey to position 2 in the
ignition lock and back to position 0.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
Activating/deactivating the interior
lighting delayed switch-off
If you activate the Light. delay function,
the interior lighting remains on for 20
seconds after you remove the SmartKey from
the ignition lock.
XPress the = or ; button on the
steering wheel to select the Settings
menu.XPress the : or 9 button to select the
Lights submenu.XPress the a button to confirm.XPress the : or 9 button to select the
Light. Delay function.
When the Light. Delay function is
activated, the vehicle interior is displayed
in red in the multifunction display.XPress the a button to save the setting.210Menus and submenusOn-board computer and displays

GWARNING
If the 45 indicator lamp remains lit with an adult occupant on the front-passenger seat
even after performing the above corrective steps, do not have any passenger use the front-
passenger seat until the system has been repaired.
Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messagesPossible causes/consequences and M Solutionsb
Check Left
Cornering Light
or Check Right
Cornering LightThe left or right-hand cornering light is defective.XVisit a qualified specialist workshop.b
Check Left Low
Beam or Check Right
Low BeamThe left or right-hand low-beam headlamp is defective.XVisit a qualified specialist workshop.b
Check Rear Left
Turn Signal
or Check Rear Right
Turn SignalThe rear left-hand or rear right-hand turn signal is defective.XVisit a qualified specialist workshop.b
Check Front Left
Turn Signal
or Check Front
Right Turn SignalThe front left-hand or front right-hand turn signal is defective.XVisit a qualified specialist workshop.b
Check Left Mirror
Turn Signal
or Check Right
Mirror Turn SignalThe turn signal in the left-hand or right-hand exterior mirror is
defective.XVisit a qualified specialist workshop.b
Check Center Brake
LampThe high-mounted brake lamp is faulty.XVisit a qualified specialist workshop.224Display messagesOn-board computer and displays

Display messagesPossible causes/consequences and M Solutionsb
Active Headlamps
InoperativeThe active light function is defective.XVisit a qualified specialist workshop.b
Malfunction See
Operator's ManualThe exterior lighting is defective.XVisit a qualified specialist workshop.b
AUTO Lamp Function
InoperativeThe light sensor is defective.XVisit a qualified specialist workshop.b
Switch Off LightsThe lights are still switched on when you leave the vehicle. A
warning tone also sounds.XTurn the light switch to Ã.Adaptive Highbeam
Assist InoperativeAdaptive Highbeam Assist is defective.XVisit a qualified specialist workshop.Adaptive Highbeam
Assist Currently
Unavailable See
Operator's ManualAdaptive Highbeam Assist is deactivated and temporarily
inoperative, if:
R the windshield is dirty in the camera's field of vision.
R visibility is impaired due to heavy rain, snow or fog.XClean the windshield.
Adaptive Highbeam Assist is available again, if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system recognizes that the camera is fully operational again.
The Adaptive Highbeam Assist Now Available message is
displayed.
Engine
Display messagesPossible causes/consequences and M Solutions+
Check Coolant
Level See
Operator's ManualThe coolant level is too low.XAdd coolant, observing the warning notes when doing so
( Y page 282).XIf the coolant needs to be refilled more often than usual, have
the engine coolant system checked at a qualified specialist
workshop.226Display messagesOn-board computer and displays