2006 MERCEDES-BENZ C55AMG air conditioning

190 Controls in detail
Automatic climate control* (Canada only)
Adjusting air volume
Use buttonU (
page 185) for auto-
matic mode or air volume controls

orQ (
page 185) to adjust air volume
manually.
Seven blower speeds are available.
Press button
to decrease
orQ (
page 185) to increase air
volume to the desired level.
The indicator lamp on the buttonU
goes out.
The automatic air distribution remains
switched on.
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
side windows.
Activating
Press buttonP(page 185).
The indicator lamp on the button
comes on.The air conditioning switches
automatically to the following functions:

cooling on to dehumidify

maximum blowing and heating
power

air flows onto the windshield and
the front side windows

the air recirculation mode is
switched off
Deactivating
Press buttonP (page 185) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.
i
Keep this setting selected only until the
windshield or the side windows are
clear again.
i
The cooling remains switched on.

191 Controls in detail
Automatic climate control* (Canada only)
Windshield fogged on the outside
Switch the windshield wipers on
(
page 50).
If the automatic mode of the automatic cli-
mate control is switched off:
Turn air distribution control1 or8
toa orY (
page 185).
Maximum cooling MAXCOOL
If the left and right air distribution controls
as well as the airflow volume control are
set toU (
page 185) and there is a
high need for cooling, the display
“MAXCOOL” appears.
This provides the fastest possible cooling
of the vehicle interior (when side 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.Activating
Press button, (page 185).
The indicator lamp on the button
comes on.i
Keep this setting selected only until the
windshield is clear again.
Warning!G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 185) is activated, or
press buttonP.
i
The air recirculation mode is activated
automatically at high outside tempera-
tures.
The indicator lamp on the button,
is not lit when the air recirculation
mode is automatically switched on.
A quantity of outside air is added after
approximately 30 minutes.

194 Controls in detail
Automatic climate control* (Canada only)
Deactivating
Press buttone (page 185).
The indicator lamp on the button goes
out.
Air conditioning
The cooling function, only operational
when the engine is running, cools the vehi-
cle interior down to the selected tempera-
ture. The cooling function also
dehumidifies the air in the vehicle interior,
thus preventing the windows from fogging
up.
Warning!G
Never operate the side windows and the
tilt/sliding sunroof if there is the possibility
of anyone being harmed by the closing pro-
cedure.
In the event that the closing procedure
causes potential danger, the closing of the
side windows can be immediately halted by
pressing or pulling the respective window
switch. The closing of the tilt/sliding
sunroof can be immediately halted by
moving the tilt/sliding sunroof switch in the
overhead control panel in any direction.
The closing of the side windows and
tilt/sliding sunroof can be reversed by again
pressing and holding the buttone.
i
Press and hold buttone for approx.
2 seconds. The side windows and or
tilt/sliding sunroof will return to their
previous position. You can release
buttone once the opening proce-
dure has begun. The windows and
tilt/sliding sunroof continue opening
until they have reached their previous
position.
A window or tilt/sliding sunroof will
only return to its previous position if it
has not been moved to another posi-
tion using the respective window
switch or tilt/sliding sunroof switch af-
ter it was closed with buttone. A
window or tilt/sliding sunroof that was
moved will remain in its current posi-
tion if buttone is used to re-open
the remaining windows or tilt/sliding
sunroof.
i
Condensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.
Warning!G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and
others.

195 Controls in detail
Automatic climate control* (Canada only)
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the
vehicle will then no longer be cooled or
dehumidified.
Press button9 (page 185).
The indicator lamp on the button goes
out.
The cooling function switches off after
a short delay.
Activating
Moist air can fog up the windows. You can
dehumidify the air with the air condi-
tioning.
Press button9 (page 185) again.
The indicator lamp on the button
comes on.The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.Activating
Switch off the ignition (page 33).
Press button9 (page 185).
The indicator lamp on the button
comes on.
!
If the air conditioning cannot be turned
on again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
i
How long the system will provide
heating depends on

the coolant temperature

the temperature set by the operator
The blower will run at speed setting 1
regardless of the air distribution
control setting.

196 Controls in detail
Automatic climate control* (Canada only)
Deactivating
Press button9 (page 185).
The indicator lamp on the button goes
out.
The residual heat is automatically turned
off:

when the ignition is switched on

after about 30 minutes

if the battery voltage drops
Rear passenger compartment
adjustable air vents
The air conditioning for the rear passenger
compartment is controlled via the auto-
matic climate control panel (
page 185).The air vents for the rear passenger
compartment are located in the rear
center console.
1Left center air vent
2Thumbwheel for air volume control for
center air vents
3Right center air ventAdjusting air distribution
Push the slide for the left center
vent1 or right center vent3 to the
left, right, up, or down.
The air flow is directed in the
corresponding direction.
Adjusting air volume
Turn thumbwheel2 up or down.
The air volume is increased or
decreased.
i
The temperature at the center air vents
for the rear passenger
compartment1 and3 i s t h e s a m e a s
at the dashboard center air vents.
i
For draft-free ventilation, push
slides1 and3 upward.

332 Operation
Tires and wheels
Curb weight
The weight of a motor vehicle with
standard equipment including the maxi-
mum capacity of fuel, oil, and coolant, and,
if so equipped, air conditioning and
additional optional equipment, but without
passengers and cargo.
DOT (D
epartment of Transportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross Axle Weight Rating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
Certification label located on the driver’s
door B-pillar.GVW (G
ross Vehicle Weight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the Certification label
located on the driver’s door B-pillar.
GVWR (G
ross Vehicle Weight Rating)
This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight of
the vehicle including all options, passen-
gers, fuel, and cargo and, if applicable,
trailer tongue load). It is indicated on
Certification label located on the driver’s
door B-pillar.Kilopascal (kPa)
The metric unit for air pressure. There are
6.9 kPa to 1 psi; another metric unit for air
pressure is bar. There are
100 kilopascals (kPa) to 1 bar.
Maximum load rating
The maximum load in kilograms and
pounds that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
vehicle capacity weight and production
options weight.

427 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
C55AMG
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley

436 Technical data
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respectivelubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz. Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
CapacityFuels, coolants, lubricants, etc.
Engine with oil filter9.0 US qt (8.5 l)Approved engine oils
Automatic transmission9.3 US qt (8.7 l)MB Automatic Transmission Fluid
Rear axle1.5 US qt (1.4 l)Hypoid gear oil SAE 85 W 90
Power steeringapprox. 1.1 US qt (1.0 l)MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubsapprox. 2.1 oz (60 g) eachHigh temperature roller bearing grease
Brake system0.5 US qt (0.5 l)MB Brake Fluid (DOT 4+)
Cooling systemapprox. 12.8 US qt (12.0 l)MB 325.0 Anticorrosion/antifreeze agent
Fuel tank
including
a reserve of16.4 US gal (62.0 l)
2.6USgal (10.0l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Air conditioning systemR-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer3.2 US qt (3.0 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing point or MB Windshield Washer Concentrate “MB SummerFit”
and commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 442).
Windshield washer and headlamp
cleaning system*6.4 US qt (6.0 l)