engine MERCEDES-BENZ CL CLASS 2010 Owner's Guide

Switching daytime running lamp mode
on or off (USA only)
X
Press button = or ; to select the
Settings menu.
X Press button : or 9 to select the
Day Running Lamps function.
X Press button a. X
Press button a again if you would like
to change the current status.
Depending on the previous status, the
Daytime Running Lamps will be switched
on (Enabled) or off (Disabled).
With Daytime Running Lamps mode
Enabled selected and the exterior lamp
switch at position $ or c, 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 “Lighting” ( Y page 276).
i Make sure the exterior lamp switch is set
to M or c when you switch off the
daytime running lamps while driving at
night.
Showing or hiding additional
speedometer You can have an additional digital
speedometer shown in the multifunction display. Depending on the setting for the
speedometer display mode (Y page 215), the
speed is shown in the unit of kilometers/hour
(setting
miles) or miles/hour (setting km).
X Press button = or ; to select the
Settings menu.
X Press button : or 9 to select the
Add. Speedometer function.
X Press button a. X
Press button a again if you would like
to change the current status.
Depending on the previous status, the
Add. Speedometer will be switched On or
Off.
Selecting speedometer display mode X
Press button = or ; to select the
Settings menu.
X Press button : or 9 to select the
Units function.
X Press button a. X
Press button a again if you would like
to change the current status.
Depending on the previous status, the
Display Unit Speed-/Odometer will be
switched to miles or km. Instrument cluster control system
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The additional speedometer (
Y page 215)
will be shown in the other unit.
Switching the radar sensors on or off If your vehicle is equipped with DISTRONIC
PLUS, BAS PLUS, or Park Assist it is equipped
with a radar sensor system which you can
switch on and off.
When traveling in Canada in a vehicle not
registered in Canada, you must switch off the
radar sensor system. Canadian law does not
permit the use of the radar sensor system for
vehicles from outside of Canada. When you
switch off the radar sensor system, the
following functions are deactivated:
R
BAS PLUS (Y page 57)
R PRE-SAFE ®
Brake (Y page 62)
R DISTRONIC PLUS (Y page 304)
R Park Assist ( Y page 324)
R Advanced Parking Guidance ( Y page 327)
R Blind Spot Assist (Y page 335)
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference, and
2. this device must accept any interference received, including interference that may cause undesired
operation of the device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
X Press button = or ; to select the
Settings menu.
X Press button : or 9 to select the
Radar Sensors function.
X Press button a. X
Press button a again if you would like
to change the current status.
Depending on the previous status, the
Radar Sensors will be switched on
(Enabled) or off (Disabled).
i The selected status of the radar sensors
remains stored in memory even if the
engine is turned off and restarted.
The following message appears in the
multifunction display if the radar sensors are
switched off and you attempt to activate
DISTRONIC PLUS, Park Assist, or PRE-
SAFE ®
Brake:
Radar Sensors
(See Oper. Manual)
Disabled 216
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i
USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2.
this device must accept anyinterference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference, and
2. this device must accept any interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Important notes on using KEYLESS-GO R
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(Y page 252).
R You can combine KEYLESS-GO functions
with normal SmartKey functions (e.g.
unlocking with KEYLESS-GO and locking
with button &).
R Always carry the SmartKey with you.
R Never store the SmartKey together with
-electronic items

such as a mobile phone
or another SmartKey
- metallic objects such as coins or metal
foil Doing so could impair the function of the
KEYLESS-GO system.
R To lock

or unlock the vehicle, the SmartKey
must be located outside the vehicle within
approximately 3 ft (1 m) of a door or the
trunk.
R When the vehicle has been parked for more
than 72 hours, the KEYLESS-GO function is
deactivated. Pull an outside door handle
and switch on the ignition once to activate
the KEYLESS-GO function.
R If the SmartKey is positioned farther away
from the vehicle, the system may no longer
recognize the SmartKey. The vehicle
cannot be locked or the engine started via
the KEYLESS-GO system.
R If the SmartKey is removed from the vehicle
(e.g. if a passenger exits the vehicle with
the SmartKey)
-when pressing the KEYLESS-GO start/
stop button or trying to lock the vehicle
with the outside door handle the
message Key Not Detected appears in
the multifunction display
- with the engine running, the red message
Key Not Detected appears in the
multifunction display while driving off
Find the SmartKey or change its present
location immediately (e.g. place it on the
front passenger seat or insert it in shirt
pocket).
R If you have started the engine with the
KEYLESS-GO start/stop button, you can
turn it off again by
-pressing the KEYLESS-GO start/stop
button
- inserting the SmartKey into the starter
switch when the vehicle is at a standstill
and the automatic transmission is in park
position P 254
Locking and unlocking
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R
The vehicle could be inadvertently
unlocked if the SmartKey is within 3 ft (1 m)
of the vehicle and
-an outside door handle is splashed with
water
or
- you attempt to clean an outside door
handle
R Remember that the engine can be started
by anyone with a SmartKey that is left
inside the vehicle.
Possibility 1 (One SmartKey in the vehicle,
one SmartKey outside the vehicle):
If you leave the SmartKey behind when
exiting and locking the vehicle, no message
appears in the multifunction display.
Possibility 2 (One SmartKey in the vehicle,
no SmartKey outside the vehicle):
When exiting and trying to lock the vehicle,
the message Key Detected In Vehicle
appears in the multifunction display. The
vehicle will not be locked.
Factory setting X
Global unlocking: Pull an outside door
handle.
Unless you open a door or the trunk within
approximately 40 seconds after unlocking
the vehicle:
R The vehicle will be locked again.
R The anti-theft alarm system will be
rearmed. X
Global locking: Touch outside of a door
handle :.
Selective setting If you frequently travel alone, you may wish
to reprogram the SmartKey. Pulling the
driver’s outside door handle will then only
unlock the driver’s door and the fuel filler flap.
X
Switching on/off: Press and hold buttons
% and & simultaneously for
approximately 6 seconds until the battery
check lamp (Y page 255) flashes twice.
KEYLESS-GO will then function as follows:
X Unlocking driver’s door and fuel filler
flap: Pull the driver’s outside door handle.
X Global unlocking: Pull the outside door
handle on the passenger side.
X Global locking: Touch outside of a door
handle :. Checking SmartKey batteries
Example illustration: SmartKey with KEYLESS-GO
X
Press button & or % on the
SmartKey.
Battery check lamp : comes on briefly to
indicate that the SmartKey batteries are in
order.
If the battery check lamp does not come on
briefly during check, the SmartKey batteries
are discharged.
X Replace the batteries ( Y page 461). Locking and unlocking
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Fix whatever is affecting the window before
trying to shut the door.
Automatic central locking
You can switch the automatic central locking
on or off using the COMAND system
(Y page 193).
The doors and the trunk lock automatically
when the vehicle is set into motion.
You can open a locked door from the inside.
Open door only when conditions are safe to
do so.
The doors are designed to unlock
automatically after an accident if the force of
the impact exceeds a preset threshold.
The vehicle locks automatically when the
ignition is switched on and the wheels are
turning at a vehicle speed of above 9 mph
(15 km/h). You could therefore lock yourself
out when the vehicle is pushed or towed or is
on a test stand. Locking and unlocking from the inside
G
Observe Safety notes, see page 51.
You can lock or unlock the vehicle from the
inside using the central locking or unlocking
switch. This can be useful, for example, if you
want to lock the vehicle before starting to
drive.
The central locking or unlocking switch does
not lock or unlock the fuel filler flap or the
interior storage compartments, such as the
glove box. X
Locking: Press central locking switch ;.
When the passenger door is closed, the
vehicle locks.
X Unlocking: Press central unlocking
switch :.
You can open a locked door from the inside.
Open door only when conditions are safe to
do so.
If the vehicle was previously locked with the
central locking switch
R and the SmartKey is set to factory settings,
the complete vehicle is unlocked when a
door is opened from the inside
R and the SmartKey is set to selective
settings, only the door opened from inside
is unlocked
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it will not
unlock using the central unlocking switch. Opening the trunk
G
Warning!
Make sure the trunk is closed when the engine
is running and while driving. Among other
dangers, deadly carbon monoxide (CO) gases
may enter vehicle interior resulting in
unconsciousness and death.
! When you open the trunk, the trunk lid
swings open upwards. Always make sure
there is sufficient overhead clearance. Locking and unlocking
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You can open the trunk when the vehicle is
stationary.
A minimum height clearance of 5.9 ft (1.80 m)
is required to open the trunk lid.
Opening the trunk from the outside
X
Press and hold button F (Y page 252)
on the SmartKey until the trunk unlocks
and begins to open.
or
X Pull on handle :.
In vehicles without KEYLESS-GO: The
vehicle must be unlocked.
If the trunk does not open, it is still locked
separately ( Y page 261).
X Stopping the opening procedure: Press
button F on the SmartKey.
Opening the trunk from the inside X
Press and hold remote trunk opening/
closing switch : until the trunk begins to
open. If the trunk does not open, it is still locked
separately (
Y page 261).
X To interrupt the opening procedure:
Press remote trunk opening/closing
switch :.
Trunk opening-height restriction The trunk lid opening height can be limited
when transporting goods on a roof rack (e.g.
presence of an optional MB sport luggage
container). When the trunk opening-height is
switched on, the trunk opens to
approximately the height of the roof edge.
X
Switching on/off: Use the COMAND
system (Y page 193). Closing the trunk
G
Warning!
Make sure the trunk is closed when the engine
is running and while driving. Among other
dangers, deadly carbon monoxide (CO) gases
may enter vehicle interior resulting in
unconsciousness and death. G
Warning!
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be
especially careful when small children are
around. G
Observe Safety notes, see page 51.
Do not leave the SmartKey in the open trunk.
You may lock yourself out.
If the vehicle was previously locked centrally
with the SmartKey or KEYLESS-GO, the trunk
lid will lock automatically when closed. All
turn signal lamps flash three times to confirm
locking. 258
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G
Warning!
Only drive with the doors closed. Otherwise,
one or more of the doors could open while the
vehicle is in motion, putting you and/or
others at risk. G
Warning!
Make sure the trunk is closed when the engine
is running and while driving. Among other
dangers, deadly carbon monoxide (CO) gases
may enter vehicle interior resulting in
unconsciousness and death.
X Power closing assist for doors: Press the
doors gently past the initial engage position
into the lock.
X Power closing assist for trunk lid: Press
the trunk lid gently into its lock. Starter switch positions
SmartKey
G
Observe Safety notes, see page 51. Starter switch
g
For removing SmartKey
1 Power supply for some electrical
consumers, e.g. wipers
2 Ignition (power supply for all electrical
consumers) and driving position
3 Starting position
When you switch on the ignition, all lamps in
the instrument cluster come on. The 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.
If a lamp in the instrument cluster remains on
after starting the engine or comes on while
driving, refer to “Lamps in instrument cluster”
(Y page 450).
X
Always remove the SmartKey from the
starter switch when the engine is not in
operation.
This will help to prevent accelerated vehicle
battery discharge or a completely
discharged vehicle battery.
If the SmartKey cannot be turned in the
starter switch, the vehicle battery may not be
sufficiently charged.
X Check the vehicle battery and charge it if
necessary ( Y page 471).
or
X Get a jump start (Y page 471).
i If the SmartKey does not belong to the
vehicle, the SmartKey can be turned in the
starter switch. However, the ignition does
not switch on and the engine does not start. KEYLESS-GO
G
Observe Safety notes, see page 51.
Vehicles equipped with the KEYLESS-GO
feature are supplied with a SmartKey with
integrated KEYLESS-GO function and a
removable KEYLESS-GO start/stop button.
The KEYLESS-GO start/stop button must be
inserted in the starter switch and the
SmartKey present in the vehicle.
Pressing the KEYLESS-GO start/stop button
without depressing the brake pedal
corresponds to the various starter switch
positions (Y page 262).
Pressing the KEYLESS-GO start/stop button
with the brake pedal firmly depressed will
start the engine (Y page 285).
The KEYLESS-GO start/stop button can be
pulled out of the starter switch easily. You can 262
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then insert the SmartKey into the starter
switch.
i
The KEYLESS-GO start/stop button does
not need to be removed from the starter
switch when you leave the vehicle.
However, always take the SmartKey with
you when you leave the vehicle. As long as
the SmartKey is in the vehicle, the vehicle’s
electrical systems can be switched on or
the engine can be started using the
KEYLESS-GO start/stop button. :
KEYLESS-GO start/stop button
; Starter switch
X Insert the KEYLESS-GO start/stop button
into the starter switch (if not inserted
already).
i Allow for 2 seconds until the system has
detected the KEYLESS-GO start/stop
button.
X Make sure the automatic transmission is in
park position P.
X Do not depress the brake pedal. KEYLESS-GO start/stop button
=
USA only
? Canada only
Position 0 Before you press the KEYLESS-GO start/stop
button, the vehicle’s on-board electronics
have status 0 (as with SmartKey removed).
Position 1
X
Press the KEYLESS-GO start/stop button
once.
This supplies power for some electrical
consumers, e.g. wipers.
i When you now open the driver’s door, the
power supply is switched off.
Ignition (or position 2) X
Press the KEYLESS-GO start/stop button
twice.
This supplies power for all electrical
consumers.
When you switch on the ignition, all lamps
in the instrument cluster come on. The
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. If a lamp in the
instrument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” ( Y page 450). Starter switch positions
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i
For safety reasons, the driver’s seat will
not return to its last set position if the
system recognizes the last set position as
an extreme forward position. Instead, the
driver’s seat will remain at or move to a
factory-set maximum forward position. To
again fully return the driver’s seat to your
last set position or to memory position,
adjust the seat to the desired position or
press and hold the respective memory
position button (Y page 274).
i The last set driver’s seat and steering
wheel positions are stored when the
ignition is switched off and the position is
stored in memory.
i If the current position for the steering
wheel is in the uppermost tilt position, the
steering wheel will not move.
If the current seat position is within a
factory-set position range and the system
recognizes the current seat position to be
rearward enough for easy entry and exit,
the driver’s seat will not move to the rear.
The adjustment procedure is interrupted
briefly when the engine is started. G
Warning!
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All driver’s seat and steering wheel
adjustments must be completed before
setting the vehicle in motion. Driving off with
the driver’s seat/steering wheel still
adjusting could cause the driver to lose
control of the vehicle.
Crash-responsive exit aid When you open the driver’s door after an
accident has occurred, the steering column
moves
up.
The position of the SmartKey in the
starter switch is insignificant. This function
facilitates exiting as well as rescue of vehicle
occupants. The crash-responsive exit aid can only be
triggered
when

the easy-entry/exit feature is
activated via the control system. Rear seat head restraints
G
Warning!
For safety reasons, always drive with the rear
head restraints in the upright position when
the rear seats are occupied.
Keep the

area around head restraints clear of
articles (e.g. clothing) to not obstruct the
folding operation of the head restraints. G
Warning!
For your protection, drive only with properly
positioned head restraints.
Adjust the

head restraint in such a way that it
is as close to the head as possible and the
center of the head restraint supports the back
of the head at eye level. This will reduce the
potential for injury to the head and neck in the
event of an accident or similar situation.
With a rear seat occupied, make sure to move
the respective head restraint up from the
lowest non-use position and have the
occupant adjust the head restraint properly.
Do not drive the vehicle without the seat head
restraints installed when the rear seats are
occupied. Head restraints are intended to
help reduce injuries during an accident. G
Warning!
Make sure the rear seat head restraints
engage when placing them upright manually.
Otherwise their

protective function cannot be
ensured.
The back of the head will not be supported in
the event of a collision. That could cause
serious or even fatal injuries. Rear seat
occupants can be seriously injured or killed.
Folding rear seat head restraints back The rear seat head restraints can be folded
backward for increased visibility.268
Seats
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ambient lighting conditions require you to do
so.
In
low
ambient lighting conditions, only switch
from position c to L with the vehicle
at a standstill in a safe location. Switching
from c 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 c.
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 215).
X Turn the exterior lamp switch to position
$ or c.
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 c, 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 electronic 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 275). 276
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