air filter MERCEDES-BENZ C COUPE 2005 CL203 Owner's Manual

Contents
Manual transmission ......................... 157
Shifting into reverse ..................... 158
Automatic transmission* ................... 159
One-touch gearshifting................. 160
Gear ranges ................................. 161
Gear selector lever position ......... 162
Automatic shift program .............. 164
Driving tips ................................... 165
Emergency operation
(Limp Home Mode) ...................... 166
Good visibility .................................... 167
Headlamp cleaning system* ........ 167
Rear view mirrors ......................... 167
Sun visors .................................... 169
Rear window defroster ................. 170
Climate control .................................. 172
Deactivating the climate control
system ......................................... 175
Setting the temperature ............... 175
Adjusting air distribution and
volume ......................................... 176
Defrosting .................................... 177
Air recirculation mode.................. 177
Air conditioning ............................ 179
Rear passenger compartment
adjustable air vents...................... 180Automatic climate control* ................ 182
Deactivating the automatic
climate control system ................. 185
Setting the temperature................ 185
Adjusting air distribution............... 186
Adjusting air volume ..................... 187
Defrosting ..................................... 188
Maximum cooling MAXCOOL ........ 188
Air recirculation mode .................. 189
Charcoal filter ............................... 191
Air conditioning............................. 192
Residual heat and ventilation
(available on automatic climate
control panel design A only).......... 193
Rear passenger compartment
adjustable air vents....................... 194Audio system...................................... 195
Audio and telephone, operation .... 195
Operating safety ........................... 195
Operating and display elements ... 196
Button and soft key operation ...... 198
Operation...................................... 198
Radio operation ............................ 203
Introduction to satellite radio*
(USA only) ..................................... 208
CD mode....................................... 213
GSM network phones ................... 220
TDMA or CDMA network phones .. 227
Emergency calls “911” ................. 234
Power windows .................................. 237
Opening and closing the windows 237
Synchronizing power windows ...... 240

174 Controls in detailClimate controlThe climate control is operational when-
ever the engine is running. You can oper-
ate the climate control system in either the
automatic or manual mode. The system
cools or heats the interior depending on
the selected interior temperature and the
current outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
The air conditioning will not engage (no
cooling) if the modeAC
OFF
is activated or
mode A/C is deactivated (page 179).
Warning!
G
When operating the climate control, the air
that enters the passenger compartment
through the air vents in the footwell can be
very hot or very cold (depending on the set
temperature). This may cause burns or frost-
bite on unprotected skin in the immediate
area of the air vents. Always keep sufficient
distance between unprotected parts of the
body and the footwell air vents. If necessary,
change the air flow using the air distribution
controls to direct the air away from the foot-
well air vents (
page 176).
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air
pollution) may require replacement of
the filter before its scheduled interval.
A clogged filter will reduce the air
volume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off, see
“Opening (Summer opening feature)”
(page 240).
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing
objects on the air flow-through exhaust
slots below the rear window.

183 Controls in detail
Automatic climate control*
Depending on production date, your
vehicle is equipped with either automatic
climate control panel design A or B.Automatic climate control panel design A
Automatic climate control panel design B
Item
1
Left side defroster vent, fixed
2
Left side air vent, adjustable
3
Thumbwheel for air volume control
for left side air vent
4
Thumbwheel for air volume control
for left center air vent
5
Left center air vent, adjustable
6
Right center air vent, adjustable
7
Thumbwheel for air volume control
for right center air vent
8
Thumbwheel for air volume control
for right side air vent
9
Right side air vent, adjustable
a
Right side defroster vent, fixed
b
Automatic climate control paneliFor draft-free ventilation, move the
sliders for the air vents2,5,6,
and9 to the middle position.
Item
1
Left side air distribution control
2
Defrosting
3
Temperature control, left, raising
4
Display
5
Air volume control, raising
6
Temperature control, right, raising
7
Rear window defroster
8
Right side air distribution control
9
Charcoal filter
a
AC cooling on/off (AC
OFF
or A/C)
Residual heat/ventilation
b
Temperature control, right, lowering
c
Air volume control, lowering
d
Temperature control, left, lowering
e
Air recirculation
f
Automatic climate control on/off
(complete system)
g
Air distribution and air volume
(automatic mode)

184 Controls in detailAutomatic climate control*The automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing on the selected interior temperature
and the current outside temperature.
Nearly all dust particles, pollutants and
odors are filtered out before outside air
enters the passenger compartment
through the air distribution system.
The air conditioning will not engage (no
cooling) if the modeAC
OFF
is activated or
modeA/C is deactivated (page 192).
iFeature availability is based on prelimi-
nary information at time of printing.
The automatic climate control may not
be available as optional equipment on
all models.
Warning
G
When operating the automatic climate
control, the air that enters the passenger
compartment through the air vents in the
footwell can be very hot or very cold
(depending on the set temperature). This
may cause burns or frostbite on unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the foot-
well air vents. If necessary change the air
flow using the air distribution controls to
direct the air away from the footwell air
vents (
page 186).
Warning!
G
Follow the recommended settings for
heating and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.iSevere conditions (e.g. strong air
pollution) may require replacement of
the filter before its scheduled interval.
A clogged filter will reduce the air
volume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off, see
“Opening (Summer opening feature)”
(page 245).
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing
objects on the air flow-through exhaust
slots below the rear window.

190 Controls in detailAutomatic climate control*
Deactivating
Press button, (
page 183).
The indicator lamp on the button goes
out.The air recirculation mode is deactivated
automatically:


after five minutes if the outside
temperature is below
approximately 41°F (5 °C)


after five minutes if the air conditioning
is turned off


after 30 minutes if the outside
temperature is above
approximately 41°F (5 °C)
At outside temperatures above 79°F
(26 °C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
iThe air recirculation mode is activated
automatically:

at high outside temperatures


if the concentration of carbon mon-
oxide and nitrogen oxide in the
outside air increases, for example
in a tunnel (charcoal filter must be
activated for the air recirculation
mode to be activated automatically)
The indicator lamp on the button,
is not lit when the air recirculation
mode is automatically switched on.
After approximately 30 minutes, out-
side air is added to the air inside the
vehicle.
If you have turned off the air
conditioning (
page 192) or the out-
side temperature is below 41°F (5°C),
the air recirculation mode will not
switch on automatically.
iIf you keep button, pressed, the
side windows and panorama roof with
power tilt/sliding panel* will return to
their previous position.

191 Controls in detail
Automatic climate control*
Charcoal filter
An activated charcoal filter markedly
reduces bad odors and removes pollutants
from air entering the passenger compart-
ment. The charcoal filter can be activated
or deactivated.
The system switches automatically to the
air recirculation mode, if the

carbon monoxide (CO)
or


nitrogen oxide (NO
X)
concentration of the outside air increases
beyond a predetermined level.Activating

Press buttone (
page 183).
The indicator lamp on the button
comes on.
iThe automatic air recirculation mode
does not function if theAC
OFF
mode
is activated (indicator lamp on
button° illuminated) orA/C mode
is deactivated (indicator lamp on
button2 not lit), or if the
outside temperature has fallen
below 41°F (5°C).
iIf you keep buttone pressed, the
side windows and panorama roof with
power tilt/sliding panel* will close.iThe activated charcoal filter should be
switched off when windows fog up on
the inside, or if the passenger compart-
ment needs to be quickly heated or
cooled down.Warning!
G
Never operate the side windows and the
panorama roof with power tilt/sliding pan-
el* if there is the possibility of anyone being
harmed by the closing procedure.
Vehicles without panorama roof with power
tilt/sliding panel*:
In the event that the procedure causes
potential danger, the opening and closing of
the side windows can be immediately halted
by pressing or pulling the respective window
switch.
Vehicles with panorama roof with power
tilt/sliding panel*:
In the event that the procedure causes po-
tential danger, the opening and closing of
the side windows can be immediately halted
by releasing the e button or by pressing
or pulling the respective window switch. The
opening and closing of the panorama roof
with power tilt/sliding panel* can be imme-
diately halted by releasing the e button
or by moving the panorama roof with power
tilt/sliding panel switch in the overhead
control panel in any direction.

238 Controls in detailPower windows
Switch on the ignition (
page 33).Opening the windows

Press switch1 or2 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.
Closing the windows

Pull switch1 or2 to the resistance
point.
The corresponding window will move
upwards until you release the switch.Fully opening the windows
(Express-open)

Press switch1 or2 past the resis-
tance point and release.
The corresponding window opens com-
pletely.
Fully closing the windows
(Express-close)

Pull switch1 or2 past the resis-
tance point and release.
The corresponding window closes com-
pletely.
iYou can also open or close the power
windows using the SmartKey (summer
opening/convenience closing feature)
(page 239).
You can close and reopen the windows
using the air recirculation button,
in the climate control panel
(page 173) or automatic climate
control panel (
page 183).
You can close and reopen the windows
using the charcoal filter button e in
the automatic climate control
panel*(
page 183).
Warning
G
If you pull and hold the switch up when clos-
ing the window, and upward movement of
the window is blocked by some obstruction
including but not limited to arms, hands, fin-
gers, etc., the automatic reversal will not op-
erate.

244 Controls in detailPanorama roof with power tilt/sliding panel*
Switch on the ignition (
page 33).Opening and closing the panorama roof
with power tilt/sliding panel

To open, close, raise, or lower the
tilt/sliding panel, move the roof panel
switch to resistance point in the re-
quired direction of arrows1to4.
Release the roof panel switch when the
tilt/sliding panel has reached the de-
sired position.
Fully opening (Express-open) the
panorama roof with power tilt/sliding
panel

Move the roof panel switch past the
resistance point in the direction of
arrow4 and release.
The tilt/sliding panel opens
completely.
Stopping the panorama roof with power
tilt/sliding panel during Express-open

Move the roof panel switch in any
direction.Opening the panorama roof with power
tilt/sliding panel with the SmartKey
The power windows (
page 237) will also
be opened or closed when you operate the
tilt/sliding panel with the SmartKey.
iYou can also open or close the tilt/slid-
ing panel using the SmartKey (summer
opening/convenience closing feature)
(page 244).
You can close and reopen the tilt/slid-
ing panel using the air recirculation
button, in the climate control pan-
el (page 173) or automatic climate
control panel (
page 183).
You can close and reopen the tilt/slid-
ing panel using the charcoal filter but-
ton e in the automatic climate
control panel*(page 183).
Warning!
G
Never operate the windows or tilt/sliding
panel if there is the possibility of anyone be-
ing harmed by the opening or closing proce-
dure.
In the event that the procedure causes po-
tential danger, the procedure can be imme-
diately halted by releasing the button on the
SmartKey. To reverse direction of move-
ment, press Œ for opening or ‹ for
closing.

428 Technical dataFuels, coolants, lubricants, etc.Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters re-
quired for vehicles with Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet, or
contact an authorized Mercedes-Benz
Center.
Using engine oils and oil filters of specifica-
tion other than those expressly required
for the Maintenance System (U.S.
vehicles) or FSS (Canada vehicles), or
changing of oil and oil filter at change inter-
vals longer than those called for by the
Maintenance System (U.S. vehicles) or
FSS (Canada vehicles) will result in engine
damage not covered by the
Mercedes-Benz Limited WarrantyPlease follow Maintenance System (U.S.
vehicles) or FSS (Canada vehicles) recom-
mendations for scheduled oil changes.
Failure to do so will result in engine dam-
age not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil is used in the air condition-
ing system.
Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. An
authorized Mercedes-Benz Center will
provide you with additional information.

443 Index
A
ABS 25, 81, 437
Malfunction indicator lamp 340
Messages in display 353
Warning lamp 340
Accelerator position, automatic
transmission* 165
Accessory weight 323
Accident
In case of 55
Activating
Air conditioning (cooling) 193
Climate control 179
Air recirculation mode 189
Climate control 177
Anti-theft alarm system 86
Automatic climate control* 183
Central locking (control system) 148
Charcoal filter 191
Climate control 173
Climate control system 175
Defrosting 188
Climate control 177
Easy-entry/exit feature* 148
Electric air pump 399
ESP 85Exterior headlamps 51
Exterior lamps 111
Exterior rear view mirror parking
position* 169
Hazard warning flasher 116
Headlamps 51
High beams 114
Ignition 33
Immobilizer 86
Rear fog lamp 113
Rear window defroster 170
Residual heat 193
Seat heating* 106
Tow-away alarm 88
Windshield wipers 53
Adding
Coolant 296, 297
Engine oil 294
Headlamp cleaning fluid 299
Windshield washer fluid 299
Additional turn signals 385
Adjustable air vents, rear passenger
compartment 194
Climate control 180Adjusting 35
Air distribution 186
Climate control 176
Air volume 187
Climate control 176
Backrest tilt 36, 38
Exterior rear view mirrors 42
Head restraint height 37, 38
Head restraint height, rear seats 103
Head restraint tilt 37, 39
Head restraint tilt, rear seats 105
Head restraints, rear seats
Folding back 104
Placing upright 105
Instrument cluster illumination 119
Interior rear view mirror 42
Manual seat 36
Mirrors 42
Rear seat head restraints 103
Seat cushion tilt 36, 38
Seat fore and aft adjustment 36, 38
Seat height 36, 38
Seats 35
Steering column height 42
Steering column length 42
Steering wheel 40