Page 135 of 489

134 Controls in detailLightingFog lamps
Front fog lamps
Switch on the low beam headlamps
(page 52).
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 131).
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)
Switch on the front fog lamps
(page 134).
Pull out the exterior lamp switch to
second stop.
The rear fog lamp is switched on.
The yellow indicator lamp† in the
exterior lamp switch comes on
(page 131).
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 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.
Page 136 of 489

135 Controls in detail
Lighting
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 131).
Push the combination switch in the di-
rection 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 the di-
rection of arrow2 to its original posi-
tion 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*
(CLK with Bi-Xenon* headlamps)
The corner-illuminating front fog lamps im-
prove illumination of the area in the direc-
tion 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 131)
or
the exterior lamp switch in
positionU (
page 131)
or
the daytime running lamp mode
activated (
page 133)
Page 140 of 489

139 Controls in detail
Lighting
Manual control
Switching all front interior lights on and
off
Press the W symbol on rocker
switch3.
The front interior lights come on.
Press rocker switch3 to center
position to activate the automatic
control.
Switching rear interior light on and off
Press button V.
The light in the rear passenger
compartment come on.
Press button V again.
The light in the rear passenger
compartment go out.Switching front reading lamps on and off
Press the left or right button X to
switch on the desired front reading
lamp.
Press the left or right button X
again to switch off the respective front
reading lamp.
Door entry lamps
The appropriate door entry lamp switches
on if a door is opened in darkness and if
the interior lighting is switched to automat-
ic function.
The entry lamp switches off automatically
when the door is closed.Trunk lamp
The trunk lamp switches on if the trunk is
opened.
If you leave the trunk open for an extended
period of time, the trunk lamp will switch
off automatically after approximately
10 minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
exterior headlamps, the door entry
lamps will remain lit for approximately
five minutes.
Page 154 of 489

153 Controls in detail
Control system
Submenus in the Settings menu
Press buttonj.
The collection of the submenus
appears in the multifunction display.
Press buttonç.
The selection marker moves to the next
submenu.
The submenus are arranged by hierarchy.
Scroll down with buttonç, scroll up
with buttonæ.
With the selection marker on the desired
submenu, use buttonj to access the
individual functions within that submenu.
Once within the submenu, you can use
buttonj to move to the next function
or buttonk to move to the previous
function within that submenu.The settings themselves are made with
buttonæ orç.
Resetting the functions of a submenu
For each submenu you can reset all the
functions to the factory settings.
Move to a function in the submenu.
Press the reset button (
page 140) in
the instrument cluster for approxi-
mately three seconds.
The request to press the reset button
once more to confirm appears in the
multifunction display.
Press the reset button once more.
All functions of the submenu will reset
to factory settings.
iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time. After approximately five seconds,
the
Settings...
menu reappears in
the multifunction display.
For safety reasons, the following
function is not reset while driving:
the
Lamp circuit headlamp
func-
tion in the
Lighting
submenu.
iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time. After approximately five seconds,
the
Settings
menu reappears in the
multifunction display.
Page 161 of 489

160 Controls in detailControl systemLighting submenu
Access the
Lighting
submenu via the
Set-
tings
menu. Use the
Lighting
submenu
to change the lamp and lighting settings on
your vehicle.
The following functions are available:Setting daytime running lamp mode
(USA only)
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Lamp circuit
headlamp
appears in the multifunction
display.The selection marker is on the current
setting.
Press buttonæ orç to select
manual operation (
manual
) or daytime
running lamp mode (
constant
) activat-
ed.
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
Function
Page
Setting daytime running lamp
mode (USA only)
160
Setting locator lighting
161
Exterior lamps delayed
switch-off
162
Interior lighting delayed
switch-off
163
iThis function is not available in
countries where the daytime running
lamp mode is mandatory and therefore
in a constant mode.
Page 163 of 489

162 Controls in detailControl systemSetting night security illumination
(Headlamps delayed shut-off)
Use this function to set whether 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
for 15 seconds 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 on or
off
.
Turn the exterior lamp switch to
position U before turning off the
engine (
page 131).
The headlamps 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
deactivated. It will reactivate as soon
as you reinsert the SmartKey in the
starter switch.
iYou can reactivate this function within
ten minutes by opening a door.
Page 181 of 489
180 Controls in detailGood visibilityFor information on the windshield wipers,
see “Windshield wipers” (
page 53).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on the ignition (
page 36).
Press button1.
The headlamps are cleaned with a
high-pressure water jet.For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system*”
(
page 459).
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 43).
Interior rear view mirror, antiglare
position
1Lever
Tilt the mirror to the antiglare position
by moving lever1 towards the wind-
shield.
The interior rear view mirror is dimmed.
iThe headlamps will automatically be
cleaned when you have
switched on the headlamps
and
operated the windshield wipers
with windshield washer fluid fifteen
times
When you switch off ignition, the
counter resets.
Page 182 of 489

181 Controls in detail
Good visibility
Auto-dimming rear view mirrors*
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when
the ignition is switched on (
page 36),
and
incoming light from headlamps falls on
the sensor in the interior rear view
mirror.
The rear view mirror will not react if
reverse gearR is engaged
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at sen-
sors in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, if the rear window sun
shade* is in raised position.
Glare can endanger you and others.Warning!
G
In case of an accident, liquid electrolyte may
escape from the mirror housing if the mirror
glass breaks.
Electrolyte has an irritating effect. Do not
allow the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
!Electrolyte drops coming into contact
with the vehicle paint finish can be
completely removed only while in the
liquid state and by applying plenty of
water.Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your
interior rear view mirror or glance over your
shoulder before changing lanes.