light MERCEDES-BENZ CLK COUPE 2004 Repair Manual

156 Controls in detail
Thermatic (automatic air conditioning)
Thermatic is only operational if the engine
is running. Optimum performance is only
guaranteed if you dr
ivewith the windows
and sli ding /tilting sunroof* closed.
You can switch Thermatic off completely
as you require ( =pa ge 157).
You can allow the air condi tioning to adjust
autom atical ly (
=page 157) or you can
control it manually ( =page 159).
In automatic mode, Thermatic cools or
heats the vehicle interior depending on:
! the temperature selected
! outside temperature
! sunlight
In automatic mode, you rare lyneed to alter
the temperature, airflow or air distributio n.
The combination filter installed filters out
most dust particles and pollen comp letely. i
The interval for replacing the filter depends
on environmental influences, such as high levels
of air pollution. The interval may be shorter than
tha tspecifi edin the Service Booklet .A filter
reduces the quantity of air suppli edto the vehi-
cle inte rior.
6 In warm weather, ventilate the vehicle
for a short time, e.g. using the summer
open ing feature (=
page183).
This ensures that the desired interior
tempe rature is achieved more rapidly.
i Observ e the following instructions to ensure
that Thermatic functions correctly:
! Keep the air inlet onthe bonnet free from
deposi ts, e.g. ice or snow, to ensure the flow
of fre shair to the vehicle interior.
! Make sure tha tthe air vents and vent ilation
grilles in the vehicle interior are always kept
cl ear. i
Cond ensation may drip from the underside
of the vehi cle when Thermatic isin cooling
mode. G
Risk of accident Follow the settings recommended on the fol-
lowing pages for heating or cooling. The win-
dows coul dotherwise mist up. As a result, you
may nolongerbe able to observe road and
traffic conditions and cause an accident. H
Environmental note The
cooling system uses th erefri gerant
R134A. This refrigerant does not damage
the earth's ozone la yer. 209en_d2.boo Seite
156 Dienstag, 25. Mai 2004 7:26 19

157
Controls in detail
Thermatic (automatic air conditioni ng)Switching
off
6 Turn air flow control 1to0.
i Air supply and air circulation are also
switched off when Thermatic is switche doff.
Onl yuse these settings for a short time. The win-
dows could otherwise mist up. Switching
on
6 Turn air flow control 1to1or higher. You can sw
itch automatic air-conditioning
control on or off control as required.
i Inautomatic mode, you will only rarely need
to adj ustth e temperature, airflow and air distri-
bu tion. Switchi
ngon
6 Briefly press the Ubutton when the
engine is running.
The indicator lamp in the button lights
up. Te mperature, airflow and air distri-
bution are controlled automatically.
6 Set the desired temper atur e separa tely
fo rdriver's side 2and front-passen-
ger side 3using the temperature con-
troller.
The temperature of the vehicle interior
is adjusted automatically. Switching off
6
Press the Ubutton.
The indicator lamp in the button goes
out. Automatic te mperature, airflow
and air-distribution control are
switched off.
You can now adjust air distribution
( = page 158) and airflow ( =page 159)
manually. Switching Thermatic on
and off Controlling
the air condit ioning
automatically 209en_d2.boo Seite
157 Dienstag, 25. Mai 2004 7:26 19

159
Controls in detail
Thermatic (automatic air conditioni ng)
You can set the airflow to six different lev-
els autom atical ly (
=page 157) or manually
using control 1.
6 Press the Ubutton.
The indicator lamp in the Ubutton
goes out. Automatic airflow control is
switched off. The airflow is controlled
accor ding to the setting cur rently
selected.
6 Turn the airflow control to the desired
setting.
The airflow is controlled according to
the setting selected. The follow
ing settings can be used to clear
the windscreen, e.g. if itis covered with
frost. Switchi
ngon
6 Press the Pbutton.
The indicator lamp in the Pbutton
li ghts up.
Thermatic switches automatically to
the following functions:
! Maximum blower andhe at output
! Air is directed towards the wind-
screen and front side windows
! Air-recirculation mode is switched
off
i This setting should only be maintained until
th e winds cree nis clear again. Switchi
ngoff
6 Press the Pbutton again.
The indicator lamp in the Pbutton
goes out. Windows misted up on the ins
ide
If the blower is switched off and air-recir-
culation mode is switched on, the vehicle
interio rwill no longer be ventilated and the
windows could mist up.
6 Press the Pbutton.
The indicator lamp in the Pbutton
lights up.
Therm atic switches autom atical ly to
the following functions:
! Maxi mum blower and heat output
! Air is directed towards the wind-
screen and front side windows
! Air-re circulation modeis switc hed
off
i This setting should only be maintained until
the winds cree n is clear again. Controlling
theairflow manually Demist button Misted up windows209en_d2.boo Seite
159 Dienstag, 25. Mai 2004 7:26 19

160 Controls in detail
Thermatic (automatic air conditioning)
6
When the win dscreen isclear, press
the P button again.
The indicator lamp in the Pbutton
goes out. Windscreen miste
dup on the outside
6 Switch on the win dscreen wipers
(= page 41 ).
6 Close the air vent at the top of the
coc kpit.
If Therma tic autom atic mo de is swit ched
off:
6 Turn air-distribution control 4toa
or Y . You can switch off the flow
offresh air if
unpleasant smells are entering the vehicle
from outside. No more fresh air is taken in
and the air inside the vehicle isrecircu-
lated. Switching on
6
Press the Obutton.
The indicator lamp in the button lights
up. i
Air-recirculation mode switche son automat-
ically athigh outside temperatures. The indicator
lamp in the Obutton does no tlight up if air-
recirc ulation mode is switched on automatically.
Outsid eair is taken in after approximately
30 minu tes. Switching
off
6 Press the Obutton.
The indicator lamp in the button goes
out.
i Air-recirculation mode switche soff auto-
matically:
! after aro und five minutes at outside temper-
atures below approximately 5°C
! after around five minutes if the cooling func-
tio nis swit chedoff (=
page 161)
! after around 30 minutes at outsid etem pera-
tures above approximat ely 5 °C Air-rec
ircu lation mode G
Riskofaccident Only switch over to air-recirculation mode
briefly if the outside temperature is below
5°
C. Otherwise, the windows could mist up,
thus impairing visi bility and endangering
yourself and others. As a re sult, you may no
longer be able to observe road and tra ffic
conditions and could causean accident. 209en
_d2.boo Seite 160 Dienstag, 25. Mai 2004 7:26 19

161
Controls in detail
Thermatic (automatic air conditioni ng)
Air-recirculation mo de with conven-ie
nce opening /closing feature
Sw itching on /closing
6 Press the Obutton for longer than
two seconds.
The indicator lamp in the button lights
up. The side windows and the slidin g/
tilting sunroof* close. Air-recirculation
mode isswitched on. Switching of
f/openi ng
6 Press the Obutton for longer than
two seconds.
The indicator lamp in th ebutton goes
out. The side windows and sliding /
tilting sunroof* move back to their orig-
in al po sition. Air-recirculation mode is
switched off.
i If you open awindow or the sliding /tilting
sunroof* manually after the yhave been closed
usi ng the convenience closing feature, they will
re main in this position when ope ned using the
conve nience op ening feat ure. The cooling function is operational when
the engine is running and cools accord
ing
to the te mperature selected for the vehicle
interio r.The cooling function also dries the
air inside the vehicle, the reby providing
effective protection against the windows
misting up. G
Risk of accident Make sure that nob
ody can become trapped
when the slidin g/tilting sunroof* and the
sid ewindows are bei ngclosed.
Pr ess the roof switch in the appropriate
dire ction to halt the closing procedure and
open the slidi ng/tilting sunroof*. Switching cooling on
/off G
Risk of accident If you switch off the cooling function, the
vehicle will not be cooled in the event of
wa
rmer weath erconditions. The windows
could therefore mist up more quickly. Asa
res ult, you maynolonger be ab le to obs erve
road and tra ffic conditions and cause an
acciden t. 209en_d2.boo Seite
161 Dienstag, 25. Mai 2004 7:26 19

162 Controls in detail
Thermatic (automatic air conditioning)Switching off
You can switch off the cooling function. Air
in the vehicle is then neither cooled nor
dried.
6
Pres s the ± button.
The indicator lamp in the ±button
lights up. After a delay the cooling func-
tion switches off. Switching on
The windows may mist up if the air
is
damp. You can use the cooling function to
dry the air.
6 Press the ±button.
The indicator lamp in the ±button
goes out. The cooling function is
switched on. Rear-compartment air condi
tion ing is con-
trolled via the Thermatic control panel
( = page 155).
You can adjust airf low and air direction for
each rear air vent individually.
i Thetemperature of the air from the rear air
vents is thesa me as that of thecentre air ven ts
in the cockpit.
The rear air vents are located on the centre
console in the rear.
1 Airflow
2 Swivelling centre air vent, left
3 Swivel ling centre air vent, right H
Enviro nment alno te Automatic air conditionin
grequires less
energy when the cooling isswitched off. You
can then reduce your fuel consumption and
cause less environm ental damage. Rear-compartme
ntair condition ing P83.00-2067-31209en_d2.boo Seite
162 Dienstag, 25. Mai 2004 7:26 19

166 Controls in detail
Thermotronic* (intelligent air conditio
ning)
Thermotronic is only operational when the
engine is running. Optimum performance
is only guaranteed if you drive with the win-
dows and sliding /tilting sunroof* closed.
You can switch off Thermotronic com-
pletely if required ( =page 167).
You can allow the air condi tioning to adjust
autom atical ly (
=page 167) or you can
control it manually ( =page 168).
In automatic mode, Thermotronic cools or
heats the vehicle interior depending on:
! the temperature selected
! outside temperature
! sunlight
The combination filter installed filters out
all:
! dust particles of a certain size
! pollen i
The interval for replacing the filter depends
up on enviro nmenta linfluenc es, such ashigh le v-
els of air pollution. The interval may be short er
tha nthat specified in the Service Booklet. A filter
reduces the quantity of air suppli edto the vehi-
cle inte rior.
6 In warm weather, ventilate the vehicle
for a short time, e.g. using the summer
open ing feature (=
page 183).
This ensures that the desired interior
tempe rature is achieved more rapidly.
i Observ e the following instructions to ensure
th at Thermotroni cfunctions correctly:
! Keep the air inlet onthe bonnet free from
deposi ts, e.g. ice or snow, to ensure the flow
of fre shair to the vehicle interior.
! Make sure tha tthe air vents and vent ilation
grilles in the vehicle interior are always kept
cl ear. i
Cond ensation may drip from the underside
of the vehi cle when Thermotro nicis in cooling
mode. G
Risk of accident Follow the settings recommended on the fol-
lowing pages for heating or cooling. The win-
dows coul dotherwise mist up. As a result, you
may nolongerbe able to observe road and
traffic conditions and cause an accident. H
Environmental note The
cooling system uses th erefri gerant
R134A. This refrigerant does not damage
the earth's ozone la yer. 209en_d2.boo Seite
166 Dienstag, 25. Mai 2004 7:26 19

167
Controls in detail
The rmotronic* (intelligent air conditionin g)Switching
off
6 Press the ´button.
The indicator lamp in the ´button
lights up.
i Air supply and air circulation are also
swit ched off when Thermot ronic is switched off.
Onl yuse these settings for a short time. The win-
dows could otherwise mist up. Switching
on
6 Press the ´button.
The indicator lamp in the ´button
goes out. You can swi
tchthe automat icair condi-
tioning control on or off as requi red sepa-
rately for the right and left-hand sides of
the vehic le.
i Inautomatic mode, you will only rarely need
to adj ustth e temperature, airflow and air distri-
bu tion. Switchi
ngon
6 Press the Ubutton.
The indicator lamp in the Ubutton
li ghts up.
Airflow is regulated automatically for
the entire vehicle and air distribution is
controlled separately for each side of
the vehicle. Control panel display
1 Temperature, left
2 Blower speeds
3 Temperature, right
6 Set the desired temperature separately
for the driver's side using temperature
controls 3and dand for the front-
passenger side using temperature con-
trols 6and b(
= page 165).
The temperature of the vehicle interior
is adjusted automatical ly. Switching off
6
Press the Ubutton.
The indicator lamp in the button goes
out. Automatic reg ulat ion of airflow
and air distribution is switched off. Switching Th
ermotronic onand off Controlling
the air condit ioning
automatically P83.40-2633-31 aus 203209en
_d2.boo Seite 167 Dienstag, 25. Mai 2004 7:26 19

169
Controls in detail
The rmotronic* (intelligent air conditionin g)
You can set the airflow to seven levels
automatically ( =page 167) or manually
using theQ andM buttons. Incr
easi ng the airflow
6 Press the Qbutton.
The indicator lamp in the Ubutton goes
out. Automatic air distribution remains on. Reducing the
airflow
6 Press the Mbutton.
The indicator lamp in the Ubutton
goes out. Autom atic air distribution
remains on. The follow
ing settings can be used to clear
the windscreen, e.g. if itis covered with
frost.
Switching on
6 Press the Pbutton.
The indicator lamp in the Pbutton
li ghts up.
Thermotronic automatically switches
to the following functions:
! Maximum blower andhe at output
! Air is directed to the windscreen
and the front side wi ndows
! Air-recirculation mode is switched
off
i This setting should only be maintained until
th e winds cree nis clear again.
Switching off
6 Press the Pbutton again.
The indicator lamp in th ebutton goes
out. The previous settings are restored. Windows misted up on the in
side
If the blower is switched off and air-recir-
culation mode is switched on, the vehicle
interio rwill no longer be ventilated and the
windows could mist up.
6 Press the Pbutton.
The indicator lamp in the Pbutton
lights up.
Th ermotronic automatically switches
to the following functions:
! Maxi mum blower and heat output
! Air is directed to the windscreen
and the front side windows
! Air-re circulation modeis switc hed
off
i This setting should only be maintained until
the winds cree n is clear again. Controlling
theairflow manually Demist button Misted up windows209en_d2.boo Seite
169 Dienstag, 25. Mai 2004 7:26 19

170 Controls in detail
Thermotronic* (intelligent air conditio
ning)
6 When the win dscreen isclear, press
the P button again.
The indicator lamp in the Pbutton
goes out. Windscreen miste
dup on the outside
6 Switch on the win dscreen wipers
(= page 41 ).
6 Close the air vent at the top of the
coc kpit.
If Thermotronic automatic mode is
switched off: 6 Turn air-distribution control 1or8 to
a orY . You can switch off the flow
offresh air if
unpleasant smells are entering the vehicle
from outside. No more fresh air is taken in
and the air inside the vehicle isrecircu-
lated. Switching on
6
Press the Obutton.
The indicator lamp in the button lights
up.
i Air-recirculation mode switches onautomat-
ically at high out side temperature s.The indicator
lamp in theO button is not lit.
Ou tside air is taken in after approximately
30 minutes. Switching
off
6 Press the Obutton.
The indicator lamp in the button goes
out.
i Air-recirculation mode switche soff auto-
matically:
! after around 30 minutes at outsid etem pera-
tures above approximately 5°C
! after around five minutes at outside temper-
atures below approximately 5°C
! after around five minutes if the cooling func-
tio nis swit chedoff (
=page 172)
Air-recirculation mode with conven- ience
opening /closing feature
Switching on /closing
6 Press the Obutton for longer than
two seconds.
The indicator lamp in the button lights
up. The side windows and the slidin g/
tilting sunroof* close. Air-recirculation
mode isswitched on. Air-rec
ircu lation mode G
Risk of accident Only switch over to air-recirculation mode
briefly if the outside
temperature isbelow
5° C. The window scould oth erwise mist up.
As a result, you may no longer be able to
obs erve road and traffic conditions and cause
an acciden t. 209en_d2.boo Seite
170 Dienstag, 25. Mai 2004 7:26 19