2010 MERCEDES-BENZ CL CLASS climate control

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Page 344 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual i
For draft-free ventilation, move the
adjustable center and side air vents to the
middle position.
Center air vents :
Cockpit air vent, fixed
; Right center air vent, adjustable
= Thumbwheel for air

Page 345 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
door windows.
i Keep this setting selected only until the
wi

Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
door windows.
i Keep this setting selected only until the
windshield or the door windows are clear
again.
Activating X
Press rocker switch ¬ up or down.
The indicator lamp in the rocker switch
comes on.
The climate control switches to the following
functions automatically:
R most efficient blower speed and heating
power, depending on outside temperature
R air flows onto the windshield and the door
windows
R the air conditioning compressor switches
on at outside temperatures above
approximately 41‡ (5†) for air-drying
Adjustments
You can adjust the air volume and the
temperature when the front defroster is
switched on. The air flow will remain on the
windshield and door windows.
X Press rocker switch K up or down to
increase or decrease air volume to the
desired level.
The air
volume increases/decreases to the
next higher/lower blower speed and
heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in rocker switch ¬
goes out.
or
X Press rocker switches w up or down.
Heating switches to the temperature that
was set before the front defroster was
switched on. The indicator lamp in rocker switch ¬
goes out.
i The air conditioning compressor remains
on even with the indicator lamp in button
¬ goes out. This helps to prevent
windshield from fogging.
Deactivating X
Press rocker switch ¬ up or down.
The indicator lamp in the rocker switch
goes out.
The previous settings are once again in
effect, except air recirculation mode stays
off.
Windshield fogged on the outside X
Switch the windshield wipers on
(Y page 280).
X Press rocker switch Ã up or down.
The indicator lamp in the rocker switch
comes on. Maximum cooling MAX COOL
MAX COOL is only available in U.S. vehicles.
MAX COOL is only operational when the
engine is running.
If Ã is selected on both the left and right
side and there is a high demand for cooling,
the display MAXCOOL

appears in the COMAND
display.
This provides the fastest possible cooling of
the vehicle interior (when windows and tilt/
sliding sunroof are closed). Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e. g. before driving through
a tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment. Climate control system
343
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Page 357 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual button
E to perform the acquaintance
call. Failure to complete either of these
steps may result in a system that is not
activated.
If you have any questions regarding
activation, please call the Cust

button
E to perform the acquaintance
call. Failure to complete either of these
steps may result in a system that is not
activated.
If you have any questions regarding
activation, please call the Customer
Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372)
(USA only) or 1-888-923-8367 (Canada
only).
An emergency call is initiated automatically
following an accident in which the Emergency
Tensioning Devices (ETDs) or air bags have
deployed.
i An automatically initiated Tele Aid
emergency call cannot be canceled.
An emergency call can also be initiated
manually ( Y page 355).
Once the emergency call is in progress, the
indicator lamp in the SOS button will begin to
flash. The message Connecting Call
appears in the multifunction display.
Emergency Call Activated appears in the
COMAND display and the audio system is
muted. When the connection is established,
the message Call Connected appears in the
multifunction display. Emergency Call
Activated appears in the COMAND display.
All information relevant to the emergency,
such as the location of the vehicle
(determined by the GPS satellite location
system), vehicle model, identification number
and color are generated.
i While the emergency call message
Emergency Call Activated is displayed,
operation of the audio system or COMAND
system is not possible.
The climate control system can be
operated using the climate control panel
(Y page 194).
A voice connection between the Customer
Assistance Center and the occupants of the
vehicle will be established automatically soon
after the emergency call has been initiated.
The Customer Assistance Center will attempt to determine the nature of the emergency
more precisely, provided they can speak to
an occupant of the vehicle.
i
If no vehicle occupant responds, an
ambulance will be sent to the vehicle
immediately. G
Warning!
If the indicator lamp in the SOS button is
flashing continuously and there was no voice
connection to the Customer Assistance
Center established, then the Tele Aid system
could not initiate an emergency call (e.g. the
relevant cellular phone network is not
available).
The message Call Failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be
summoned by other means.
i During the emergency call the telephone
is switched off automatically and must be
switched back on to make a call.
i The “911” emergency call system is a
public service. Using it without due cause
is a criminal offense.
Initiating an emergency call manually X
Briefly press on cover ; to open.
X Press SOS button : briefly.
The indicator lamp in SOS button : will
flash until the emergency call is concluded. Useful features
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Page 389 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual Storing tires
!
Keep unmounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease
and fuels.
Cleaning tires !
Never use a round no

Storing tires
!
Keep unmounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease
and fuels.
Cleaning tires !
Never use a round nozzle to power wash
tires. The intense jet of water can result in
damage to the tire.
Always replace a damaged tire. Uniform Tire Quality Grading
Standards
The Uniform Tire Quality Grading is a U.S.
Government requirement designed to give
drivers consistent and reliable information
regarding tire performance. Tire
manufacturers are required to grade tires
based on three performance factors:
treadwear
:, traction ;, and temperature
resistance =. Although not a Government of
Canada requirement, all tires made for sale in
North America have these grades branded on
the sidewall.
i For illustration purposes only. Actual data
on tires are specific to each vehicle and
may vary from data shown in above
illustration.
Quality grades can be found, where
applicable, on the tire sidewall between tread
shoulder and maximum section width. For
example: Treadwear Traction Temperature
200 AA A
All passenger car tires must conform to
federal safety requirements in addition to
these grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. Government test course. For example, a
tire graded 150 would wear one and one-half
(1
1
/ 2) times as well on the government
course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from
the norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction G
Warning!
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire’s ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance. G
Warning!
If ice has formed on the road, tire traction will
be substantially reduced. Under such weather
conditions, drive, steer and brake with
extreme caution. Tires and wheels
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Page 407 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual normally be done every 3 to 5 months,
depending on the climate and washing
detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface shows
signs of embedded dirt (i.e

normally be done every 3 to 5 months,
depending on the climate and washing
detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface shows
signs of embedded dirt (i.e. loss of gloss).
Do not apply any of these products or wax if
your
vehicle
is parked in the sun or if the hood
is still hot.
X Use the appropriate MB-Touch-Up Stick for
quick and

provisional repairs of minor paint
damage (i.e. chips from stones, vehicle
doors, etc.).
Engine cleaning Prior to cleaning the engine compartment,
make sure to protect electrical components
and connectors from contact with water and
cleaning agents.
Corrosion protection, such as MB
Anticorrosion Wax should be applied to the
engine compartment after every engine
cleaning. Before applying, all control linkage
bushings
and

joints should be lubricated. The
poly-V-belt and all pulleys should be
protected from any wax.
Vehicle washing In the winter, thoroughly remove all traces of
road salt as soon as possible.
When
washing

the vehicle underbody, do not
forget to clean the inner sides of the wheels.
i Vehicles with KEYLESS-GO:
If a door handle is hit by a strong jet of
water, and a SmartKey is within
approximately 3 ft (1 m) of the vehicle, it
could be inadvertently locked or unlocked.
Hand-wash
X Do not use hot water or wash your vehicle
in direct sunlight.
X Only use a soft, wet cloth or sponge to
clean the vehicle. X
Only use a mild vehicle wash detergent,
such as Mercedes-Benz approved Car
Shampoo.
X Thoroughly spray the vehicle with a
diffused jet of water.
X Do not spray directly towards the
ventilation intake.
X Use plenty of water and rinse the sponge
and chamois frequently.
X Rinse with clean water and dry with a
chamois thoroughly.
Do not allow cleaning agents to dry on the
finish.
Automatic car wash G
Warning!
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate the HOLD function or DISTRONIC
PLUS before the vehicle is washed in an
automatic car wash.
You can have your vehicle washed in an
automatic car

wash from the start. Brushless
car washes are preferable.
X To protect the filter system, activate the air
recirculation mode using rocker switch
g on the climate control panel.
! Do not

clean your vehicle in an automatic
touchless car wash which uses caustic
spray. Caustic spray will damage the paint
or ornamental moldings.
If the vehicle is very dirty, prewash it before
running it through the automatic car wash.
! Make sure the combination switch is set
to wiper setting $. Otherwise, the rain
sensor could activate and cause the wipers
to move unintentionally. This may lead to
vehicle damage.
Due to the width of the vehicle, fold in
exterior rear view mirrors prior to running
the vehicle through an automatic car wash
to prevent damage to the mirrors. Vehicle care
405
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Page 440 of 500

MERCEDES-BENZ CL CLASS 2010 Owners Manual Display messages
Possible causes/consequences and
X Solutions¨ STOP Car
Too Low The AIRMATIC is malfunctioning.
X
Avoid excessive steering maneuvers. The fenders or tires
could otherwise be damaged

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