Page 116 of 458

114 Controls in detailSeatsRemoving and installing front seat head restraints
For information on head restraint adjust-
ment, see “Seats” (
page 37).Front seat head restraints
1Head restraint height switch
Switch on ignition (
page 34).
or
Open the respective door.Removing front seat head restraints
Press switch1 upwards and hold until
the head restraint is fully extended.
Pull out head restraint.
Installing front seat head restraints
Press switch1 upwards and hold for
about five seconds.
Push the head restraint down until it
engages.
Adjust head restraint to desired posi-
tion (
page 38).
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the center of
the head restraint supports the back of the
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the
event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.iTilt the seat backrest to the rear for
easier removal and installation of the
head restraints.
Page 125 of 458

123 Controls in detail
Memory function
The memory button and stored position
switch are located on the door.
1Stored position button
2Memory button
Switch on ignition (
page 34).
or
Open the respective door and insert
the SmartKey in the starter switch.
Storing positions into memory
Adjust the seats, steering wheel and
exterior mirrors to the desired position
(page 37).
Press memory button2.
Release memory button2 and push
one of the position buttons1 within
three seconds.
All the settings are stored with the se-
lected position.
Recalling positions from memory
Press and hold one of the position
buttons1 until the seat, steering
wheel and exterior mirrors have fully
moved to the stored positions.iReleasing the button immediately
stops movement to the stored posi-
tions.Warning!
G
Do not operate the power seats using the
memory button if the seat backrest is in an
extremely reclined position. Doing so could
cause damage to front or rear seats.
First move seat backrest to an upright posi-
tion.
Page 128 of 458

126 Controls in detailLightingManual 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 (
page 125).Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:
Low beam headlamps
Tail and parking lamps
License plate lamps
Side marker lamps.
iWith the SmartKey removed from the
starter switch or the engine turned off
with KEYLESS-GO* and the driver’s
door open, a warning sounds if the
parking lamps or low beam headlamps
are switched on.
The message
TURN OFF LIGHTS
appears in the multifunction display.
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.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 128).
Page 129 of 458

127 Controls in detail
Lighting
Turn the exterior lamp switch to U.
With the SmartKey in starter switch po-
sition 1 or the KEYLESS-GO*
start/stop button pressed once, only
the parking lamps will switch on and off
automatically.
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 automatically.
Daytime running lamp mode
Turn exterior lamp switch to
positionM orU.
When the engine is running, the low
beam headlamps are switched on. In
low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly:
tail and parking lamps
license plate lamps
side marker lampsFor nighttime driving you should turn the
exterior lamp switch to positionB to
permit activation of the high beam head-
lamps.
Canada only
The daytime running lamp mode is manda-
tory and therefore in a constant
mode.When the engine is running, and you
shift from a driving position to positionN
orP, the low beam headlamps will switch
off with a three-minute delay.
When the engine is running, and you
turn the exterior lamp switch to
positionC, the parking lamps
switch on additionally.
turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime run-
ning lamp mode.
The corresponding exterior lamps
switch on (
page 373).USA only
By default, the daytime running lamp mode
is deactivated. Activate the daytime run-
ning lamp mode using the control system,
see “Setting daytime running lamp mode
(USA only)” (
page 159).
When the engine is running, and you turn
the exterior lamp switch to position C
orB, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 373).
Locator lighting and night security illu-
mination
Locator lighting and night security illumi-
nation are described in the control system
section under “Setting locator lighting”
(
page 160) and “Setting night security il-
lumination” (
page 160).
Page 134 of 458
132 Controls in detailLightingManual control
Front interior lighting
Press the ð symbol on rocker
switch 4.
The front interior lighting switches on.
Press the ñ symbol on rocker
switch 4 again.
The front interior lighting switches off.
The automatic control function is acti-
vated.Rear interior lighting
Press switch2 on theò symbol.
The rear compartment lighting switch-
es on.
Press switch2 on theò symbol
again.
The rear compartment lighting switch-
es off.Reading lamps
The reading lamps are located in the over-
head control panel.
Press reading lamp switch1or3 to
switch on the desired reading lamp.
Press reading lamp switch1or3
again to switch off the respective read-
ing lamp.
iThe setting selected for the interior
lighting is used for the trunk lighting as
well.
If the trunk lid remains open, the trunk
lighting switches off automatically after
approximately ten minutes.
Page 135 of 458

133 Controls in detail
Lighting
Courtesy lighting
For better orientation in the dark, courtesy
lamps will illuminate the interior of your ve-
hicle as follows:
With parking lamps switched on:
the door handles
the driver and passenger footwells
With the SmartKey in the starter switch
position1:
the door handles
the center console
Door entry lamps
For better orientation in the dark, the cor-
responding door entry lamps will switch on
in darkness when you open a door and the
automatic control is activated.
The door entry lamps switch off when the
corresponding door is closed.
Trunk lighting
The trunk lighting switches on if the trunk
lid is opened.
If you leave the trunk open for an extended
period of time, the trunk lighting will switch
off automatically after approximately
ten minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
exterior headlamps, the door handle
lamps will remain lit for approximately
five 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 138 of 458

136 Controls in detailInstrument clusterTachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
CL 55 AMG and CL 65 AMG
The tachometer of the CL 55 AMG and
CL 65 AMG does not have a red marking
denoting excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated at
an excessive engine speed.
Outside temperature indicator
The outside temperature is displayed in
the instrument cluster (
page 24). For in-
formation on how to select the unit of the
displayed temperature, i.e. degrees
Celsius (°C) or degrees Fahrenheit (°F),
see “Selecting temperature display mode”
(
page 157).
The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. There-
fore, the accuracy of the displayed temper-ature can only be verified by comparison to
a thermometer placed next to the sensor,
not by comparison to external displays
(e.g. bank signs, etc.).
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
Clock
The time is indicated in the instrument
cluster in the tachometer display.
You can adjust the clock using the
COMAND system. Refer to separate
COMAND operating instructions.
!Avoid driving at excessive engine
speeds, as it may result in serious en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Page 145 of 458

143 Controls in detail
Control system
Select radio station
Turn on the radio. Refer to the separate
COMAND operating instructions.
Press button è or ÿ repeatedly
until you see the currently tuned sta-
tion in the multifunction display.
1Waveband
2Station frequency
Press buttonj ork repeatedly
until the desired station is found.Select satellite radio* station
(USA only)
The satellite radio is treated as a radio ap-
plication.
Select satellite radio with the corre-
sponding key on the COMAND control
panel (SAT).
Press buttonè orÿ repeatedly
until you see the currently tuned sta-
tion in the multifunction display.
1SAT mode and preset number
2Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.
iYou can only store new stations using
the corresponding feature on the radio.
Refer to separate COMAND operating
instructions.
You can also operate the radio in the
usual manner.
iAdditional optional satellite radio
equipment and a subscription to satel-
lite radio service provider are required
for satellite radio operation. Contact an
authorized Mercedes-Benz Center for
details and availability for your vehicle.
For more information, refer to separate
COMAND operating instructions.