cooling MERCEDES-BENZ CLS COUPE 2011 Owners Manual

1, 2, 3 ...
12 Vsocket ........................................ 258
4ETS see ETS/4ETS A
ABS (Anti-lock Braking System) Display message ............................ 219
Function/notes ................................ 57
Warning lamp ................................. 241
Active Blin dSpot Assist
Activating/deactivating (on-
board computer) ............................ 204
Display message ............................ 229
Function/notes ............................. 186
Active Driving Assistance package .186
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 205
Display message ............................ 228
Function/informatio n.................... 189
Active multicontour seat ....................88
Active Park Assist Display message ............................ 229
Active Parking Assist
Function/notes ............................. 173
Active Service Syste mPLUS
see ASSYS TPLUS service interval
display
ADAPTIVE BRAKE .................................61
Adaptive brake lamps .........................58
Adaptive Highbeam Assist Activating/deactivating .................100
Adaptive Main-Beam Assist
Display message ............................ 223
Switching on/off (on-board com-
puter) ............................................. 208
Additives
Engine oil ....................................... 321
Airbag
Important safety guidelines .............36
Airbags
Activation ......................................... 35
Front airbag (driver, front
passenger )....................................... 38
Kneebag .......................................... .38Pelvis airbag
.................................... 39
Sidebag ............................................ 38
Windowba g...................................... 39
Airc onditioning
3-zone THERMOTRONIC luxury
automatic air conditioning .............112
Activating/deactivating .................113
Activating/deactivating air-recir-
culation mode ................................ 117
Auxiliary heating/ventilation .......... 119
Controlling automatically ...............114
Cooling with aird ehumidification..114
Demisting the windscreen .............116
Rea rcontrol panel ......................... 113
Setting the aird istribution.............115
Setting the airflow .........................116
Setting the airv ents...................... 124
Setting the temperature ................115
Setting the temperature (rear
compartment) ................................ 115
Switching the residual hea tfunc-
tion on/off ..................................... 118
THERMATIC 2-zone automatic cli-
mate control .................................. 111
Air-conditioning system
see Climate control
Air dehumidification
Activating/deactivating with cool-
ing................................................. 114
Aird istribution
Settin g........................................... 115
Airf ilter (white display message) ....225
Airflow Setting ........................................... 116
AIRF LOW ........................................... 114
AIRMATIC Display message ............................ 226
Function/notes ............................. 167
Suspensio ntunin g......................... 168
Vehicle leve l.................................. 167
Air pressure
see Tyre pressure
Air-recirculation mode
Activating/deactivating .................117
Airv ents ............................................ .124
Glove compartment .......................124
Important safety information .........123
Rea r............................................... 1244
Index

Climate control
Activating/deactivating rear win-
dow heating ................................... 117
Activating/deactivating the auxil-
iary heating/ventilatio n................. 120
Convenience opening/closing (air
recirculation) ................................. 118
Demisting the windows .................. 117
Important safety information .........110
Indicator lamp ................................ 114
Problems with "cooling with air
dehumidification" ........................... 114
Problems with the rear window
heating .......................................... 117
Setting the climate mode (AIR
FLOW) ............................................ 114
Switching the ZONE function on/
off .................................................. 116
Clock( on-board computer) ...............206
Cockpit ................................................. 24
Collapsible spare wheel see Emergency spare wheel
Combination switch ............................99
Constant headlamp mode see Daytime driving lights
Consumption statistics (on-board
computer) .......................................... 198
Convenience box ............................... 252
Convenience closing feature ..............79
Convenience opening/closing Air-recirculation mode ...................118
Convenience opening feature ............79
Coolan t(engine)
Checkin gthe level ......................... 268
Display message ............................ 224
Notes ............................................. 322
Temperature (on-board computer) .212
Temperature gauge ........................ 194
Warning lamp ................................. 244
Cooling
see Climate control
Cornering light function (display
message) ............................................ 221
Crash-responsive emergency light-
ing ....................................................... 104Cruise control
Cruise control leve r....................... 152
Display message ............................ 231
Cup holder ......................................... 255
Centre console .............................. 255
Rea rcompartmen t......................... 255
Current fuel consumption (on-
board computer) ............................... 198 D
Dashboard see Cockpit
Data, technical .................................. 316
Date (on-board computer) ................206
Daytime driving lights Display message ............................ 223
Switching on/off (on-board com-
puter) ............................................. 207
Delaye dswitch-off
Exterio rlighting (on-board com-
puter )............................................. 208
Interior lighting (on-board com-
puter) ............................................. 209
Diesel particle filter ..........................149
Digital speedometer .........................198
Dipped-beam headlamps Display message ............................ 221
Setting for driving on the right/
left (on-board computer) ................207
DIREC TSELECT lever
see Automatic transmission
Display (cleaning instructions) ........274
Display messages ASSYST PLUS service interval dis-
play................................................ 269
Brakes ........................................... 219
Calling up (on-board computer) .....215
Clearing (on-board computer) ........215
Driving systems ............................. 226
Engine ............................................ 224
Key ................................................ 236
KEYLESS-GO .................................. 236
Lamp s............................................ 221
Safety systems .............................. 215
Tyres .............................................. 232
Vehicle .......................................... .234 Index
7

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
available at the time of publicatio nofthe
Owner's Manual. Country-specific differen-
ces are possible. Please note that your
vehicle may not be equipped with all fea-
tures described. This also applies to safety-
relevant systems and functions. Overview of climate control systems
Important safety notes
G
Risk of accident
Observe the settings recommended on the
following pages. Otherwise, the windows
could mist up. This may obstruct your view of
the traffic situation and, as a result, you may
cause an accident.
THERMATIC 2-zone automatic climate con-
trol/THERMOTRONIC luxury 3-zone auto-
matic climate control controls the tempera-
ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
THERMATIC 2-zone automatic climate con-
trol/THERMOTRONIC luxury 3-zone auto-
matic climate control is only operational
when the engine is running 24
.O ptimum oper-
ation is only achieved if you drive with the side
windows and sliding sunroof/panorama slid-
ing sunroof closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 79). This
will speed up the cooling process and the
desired vehicle interior temperature will be
reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. Aclogged filter reduces the amount of air supplied to the vehicle interior
.For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Service Booklet .As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
24 THERMOTRONIC luxury 3-zone automatic climate control: the residual heat function can only be switched
on/off if the ignition is switched off. 110
Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control (2-zone)
Function
i
Notes/tips
:
Sets the temperature, left Set the temperature to 22 †.
;
Demists the windscreen Only use the demisting function briefly until the wind-
scree nis clear again. =
Switches the ZONE function
on/off Use the ZONE function to adopt the temperature set-
tings on the driver's side for the front-passenger side
as well.T he indicator lamp in the ábutton goes
out. ?
Switches cooling with air dehu-
midification on/off Activate climate control using the
Ãor¿ but-
tons. A
Switches the rear window
heating on/off
B
Sets the temperature, right Set the temperature to 22 †.
C
Activates/deactivates air-
recirculation mode Only use air-recirculation mode briefly, e.g. if there
are unpleasant outside odours or when in a tunnel.
The windows could otherwise mist up, as in air-recir-
culation mode, no fresh air is drawn into the vehicle. D
Sets the air distribution
E
Increases the airflow
F
Reduces the airflow Overview of climate control systems
111Climate control Z

Function
i
Notes/tips
G
Switches climate control on/
off Activate climate control primarily using the
Ã
or ¿ buttons. H
Sets climate control to auto-
matic Activate climate control using the
Ãor¿ but-
tons .The indicator lamps in the Ãand¿ but-
tons light up. Control panel for THERMOTRONIC automatic climate control (3-zone)
Function
i
Notes/tips
Front control panel
:
Sets the temperature, left Set the temperature to 22 †.
;
Demists the windscreen Only use the demisting function briefly until the wind-
screen is clear again.
=
Switches the residual heat
function on/off Use the residual heat function if you want to heat or
ventilate the vehicle interior when the ignition is
switched off. The residual heat function can only be
activated or deactivated with the ignition switched
off.
?
Switches cooling with air dehu-
midification on/off Activate climate control using the
Ãor¿ but-
tons. A
Switches the rear window
heating on/off
B
Sets the temperature, right Set the temperature to 22 †.112
Overview of climate control systemsClimate control

Activating/deactivating
X
Turn the key to position 2in the ignition
lock.
X To activate: press theÃbutton.
The indicator lamp in the Ãbuttonlights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings come
into effect again.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up. Switching cooling with air dehumidi-
fication on/off
Important information The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted.
G
Risk of accident
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
Condensatio nmay drip from the underside of
the vehicle when THERMOTRONIC is in cool-
ing mode. This is normal and no tasign that
there is a malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This cool-
ant does not contain chlorofluorocarbons,
and therefore does not damage the ozone
layer. Activating/deactivating X
To switch on: press the¿button.
The indicator lamp in the ¿button lights
up.
X To deactivate: press the¿button.
The indicator lamp in the ¿button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.
Problems with the cooling with air
dehumidification function When you press the
¿button, the indica-
tor lamp in the button flashes three times or
remains off. You can no longer switch on the
cooling with air dehumidification function.
X Consult a qualified specialist workshop. Setting climate control to automatic
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If desired, cooling with air dehu-
midification can be deactivated. Adjusts the climate control settings
This function is only available with
THERMOTRONIC luxury 3-zone automatic cli-
mate control.
The climate mode setting is especially effec-
tive at high temperatures.
You can select the following climate mode
settings in automatic mode:
FOCUS High airflow; slightly cooler setting
MEDIUM Mediuma irflow; standard setting
DIFFUSE Low airflow; slightly warmer air with less of a draught 114
Operating the climate control systemClimate control

a
Directs the airflow throug hthe foot-
well and demister vents
_ Directs the airflow through the demis-
ter, centre and side air vents as well as
the footwell air vents
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed when the controls on the side air
vents are turned downwards.
X Turn the key to position 2in the ignition
lock.
X Press the _button repeatedly until the
desired symbol appears in the display. Setting the airflow
X Turn the key to position 2in the ignition
lock.
X To increase: press theKbutton.
X To decrease: press theIbutton.
i You can use THERMOTRONIC luxury 3-
zone automatic climate control to set the
airflow in the rear compartments eparately.Switching the ZONE function on/off
X To activate: press theábutton.
The indicator lamp in the ábutton lights
up.
THERMATIC 2-zone automatic climate con-
trol: the temperature setting for the driver's
side is not adopted for the front-passenger
side.
THERMOTRONIC luxury 3-zone automatic
climate control: the temperature setting on
the driver's side is not adopted for the
front-passenger side or the rear compart-
ment.
When the buttons or controls for tempera-
ture, airflow or air distribution are activated,
the temperature setting on the driver's side is not adopted for the other climate control
zones.
X
To deactivate: press theábutton.
The indicator lamp in the ábutton goes
out.
THERMATIC 2-zone automatic climate con-
trol: the temperature setting for the driver's
side is adopted for the front-passenger
side.
THERMOTRONIC luxury 3-zone automatic
climate control: the temperature setting on
the driver's side is adopted for the front-
passenger side or the rear compartment. Demisting the windscreen
You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the side windows.
i You should only select the demisting
function until the windscreen is clear again.
X Turn the key to position 2in the ignition
lock.
X To switch on: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow 25
R high temperature 25
R air distribution to the windscreen and
fron tside windows
R air-recirculation mode off
X To deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previously selected settings come
into effect again. The cooling with air dehu-
midification function remains on. Air-recir-
culation mode remains deactivated.
or
25 Depending on the outside temperature. 116
Operating the climate control systemClimate control

X
Press the Ãbutton.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn controls :orB clockwise or anti-
clockwise (Y page 111), (Y page 112).
or
X Press the KorI button. Demisting the windows
Windows misted up on the inside X
Activate the ¿cooling with air dehu-
midification function.
X Activate automatic mode Ã.
X If the windows continue to mist up, activate
the demisting function (Y page 116).
i You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside X
Activate the windscreen wipers.
X Press the _button repeatedly until the
P orO symbol appears in the dis-
play.
i You should only select this setting until
the windscreen is clear again. Rear window heating
Activating/deactivating G
Risk of accident
Clear all windows of ice or snow before setting
off. Otherwise, impaired visibility could
endanger you and others.
The rear window heating has ahigh current
draw. You should therefore switch it off as
soon as the window is clear, as it only
switches off automatically after several
minutes. If the battery voltage is too low, the rear win-
dow heating may switch off.
X Turn the key to position 2in the ignition
lock.
X Press the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
Problems with the rea rwindow heating The rear window heating has switched off
prematurely or cannot be activated.
X
Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window heating is activated again
automatically. Activating/deactivating air-recircula-
tion mode
You can deactivate the flow of fresh air if
unpleasan todours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
The operation of the air-recirculation mode is
the same for all contro lpanels. G
Ris
kofa ccident
Only switch ove rto air-recirculation mode
briefly at low outside temperatures. Other-
wise, the windows could mist up, thus impair-
ing visibility and endangering yourself and
others. This may prevent you from observing
the traffic conditions, thereby causing an
accident.
X Turn the key to position 2in the ignition
lock.
X To switch on: press thegbutton.
The indicator lamp in the gbutton lights
up. Operating the climate control system
117Climate control Z

Setting the centre air vents
:
Centre air vent, left
; Centre air vent, right
= Centre vent thumbwheel, right
? Centre vent thumbwheel, left
X To open/close: turn thumbwheels =
and ?up or down. Setting the side air vents
X
To open/close: turn thumbwheel =up or
down.
i Side window demister vent :is never
completely shut, even if side air vent ;is
shut. Setting the air vents in the glove com-
partment
When automatic climate control is activated,
the glove compartmen tcan be ventilated, for
instance to cool its contents .The level of air- flow depends on the airflow and air distribu-
tion settings.
!
Close the air vent when heating the vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
compartmentc ould be damaged. :
Air vent thumbwheel
; Air vent
X To open/close: turn thumbwheel :
clockwise or anti-clockwise. Setting the rear-compartment air
vents
Setting the centre vents in the rear com-
partment :
Rear-compartment air vent thumbwheel
; Rear-compartment air vent, right 124
Adjusting the air ventsClimate control

X
Slowly insert oil dipstick :into the oil dip-
stick tube to the stop ,and take it ou tagain.
The oil level is correc tifthe level is between
MIN mark =and MAX mark ;.
X Top up the oil if necessary.
Adding engine oil H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment. Example: engine oil cap
X
Turn cap :anti-clockwise and remove it.
X Top up with the amount of oil required.
Fill carefully to the maximum mark on the oil
dipstick.
i Depending on the engine, the difference
between the minimum mark and the maxi-
mum mark is approximately 1.5 – 2 litres.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
Further information on engine oil
(Y page 320).
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely. Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X
Turn the key to position 2(Y page 129) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 129).
X Check the coolant temperature display in
the instrument cluster. G
Risk of injury
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
must display less than 70 †.Otherwise, you
could be scalded if hot coolant escapes. X
Slowly tur ncap : half a turn anti-clock-
wise and allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the fille rneck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant level is approximately 1.5 cm
above marker bar =in the filler neckw hen
warm, there is enough coolant in coolant
expansion tank ;.268
Engine compartmentMaintenance and care