2010 MERCEDES-BENZ G55AMG cooling

driving off, you have forgotten to release
the parking brake.
Release the parking brake.
! Avoid spinning of a drive wheel. This may
cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.
! Simultaneously depressing the
accelerator pedal and applying the brakes
reduces engine performance and causes
premature brake and drivetrain wear which
is not covered by the Mercedes-Benz
Limited Warranty.
i Once the vehicle is in motion, the
automatic central locking function engages
and the locking knobs in the doors move
down.
The automatic central locking function can
be switched off ( Y page 111).
Automatic transmissionGWarning!
It is dangerous to shift the automatic
transmission out of park position P or neutral
position N if the engine speed is higher than
idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the
engine is idling normally and when your right
foot is firmly on the brake pedal.
! Only shift the automatic transmission into
reverse gear R or park position P when the
vehicle is stopped. Otherwise the
automatic transmission could be damaged.
XDepress the brake pedal.
The gear selector lever lock is released.XShift the automatic transmission into drive
position D or reverse gear R.i
Shifting the automatic transmission out of
park position P is only possible with the
brake pedal depressed.
Only depressing the brake pedal releases
the gear selector lever lock.XWait for the gear selection process to
complete before setting the vehicle in
motion.XIf engaged, release the parking brake.XRelease the brake pedal.XCarefully depress the accelerator pedal.
After a cold start, the automatic transmission
shifts at a higher engine speed. This allows
the catalytic converter to reach its operating
temperature earlier.
For more information on driving, see “Driving
instructions” ( Y page 181).
For information on off-road driving, see “Off-
road driving” ( Y page 184).
Problems while driving
The engine runs erratically and misfires
R An ignition cable may be damaged.
R The engine electronics may not be
operating properly.
R Unburned gasoline may have entered the
catalytic converter and damaged it.
XGive very little gas.XHave the problem checked at an authorized
Mercedes-Benz Center as soon as possible.
The coolant temperature is above
248‡ (120†)
The coolant is too hot and is no longer cooling
the engine.
XStop the vehicle in a safe location as soon
as possible.XTurn off the engine immediately.Driving and parking87Controls in detail463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 87Z

FunctionRecommendation/Notes2Temperature
control, driver’s sidei Set the temperature to 72‡ (22†).(Y page 124)3Temperature
control, passenger
sidei Set the temperature to 72‡ (22†).(Y page 124)4Air distribution
control( Y page 125)5ª Rear window
defroster (USA only)( Y page 127)£ Rear window
defroster (Canada
only)6AC cooling on/offi Switch on/off the air conditioning.(Y page 123)Residual heat/
ventilationi With the engine turned off, it is possible
to continue to heat or ventilate the
interior.( Y page 126)7Air distribution and
air volume
(automatic mode)( Y page 123)8Air recirculationi
Only use this function for a short time,
e.g. in a tunnel. Otherwise, the windows
can fog up due to lack of fresh air.( Y page 126)9¥ Front defroster
(USA only)i Keep this setting selected only until the
windshield or the side windows are clear
again.( Y page 125)z Front defroster
(Canada only)Notes on climate control system
The climate control system is operational
whenever the engine is running. You can
operate the climate control system in either
the automatic or manual mode. The system
cools or heats the interior depending on the
selected interior temperature.
It can only function optimally when you are
driving with the windows and the tilt/sliding
sunroof closed.Nearly all dust particles, pollutants and odors
are filtered out before outside air enters the
passenger compartment through the air
distribution system.GWarning!
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. A clogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
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visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at an authorized Mercedes-Benz
Center.
The air conditioning will not engage (no
cooling) if the A/C mode ( Y page 123) is
deactivated.GWarning!
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.
XKeep the air intake grille in front of the
windshield free of snow and debris.
i If the vehicle interior is hot, ventilate the
interior before driving off, see “Summer
opening feature” ( Y page 84). The climate
control will then adjust the interior
temperature to the set value much faster.
Deactivating the climate control
system
XDeactivating: Set air volume control :
( Y page 121) to position 0.XReactivating: Set air volume control : to
any speed.
The previous settings are once again in
effect.
Air conditioning
The air conditioning is operational while the
engine is running and cools the interior air to
the temperature set by the operator. In
addition, the air conditioning dehumidifies
the interior air and helps prevent window
fogging.
GWarning!
If you deactivate the air conditioning, 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.
i Condensated water may drip out from
underneath the vehicle. This is normal and
not an indication of a malfunction.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs which
are harmful to the ozone layer.
Deactivating
It is possible to deactivate the air
conditioning. The interior air will then no
longer be cooled or dehumidified.
XPress button Á.
The indicator lamp in 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 interior air with the air
conditioning.
XPress button Á.
The indicator lamp in the button comes on.
! If the air conditioning cannot be activated
again, this indicates that the air
conditioning is losing refrigerant. The
compressor has turned off.
Have the air conditioning checked at the
nearest authorized Mercedes-Benz Center.
Automatic mode
When operating the climate control system in
automatic mode, the interior air temperature,
air volume and air distribution are adjusted
automatically.
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In automatic mode, cooling with
dehumidification is switched on. This function
can be switched off if necessary.
GWarning!
If you deactivate the air conditioning, 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.
XSet the desired temperature
(Y page 124).
XActivating: Press button Ã.
The indicator lamp in the button comes on.
The air volume and air distribution are
adjusted automatically.
XDeactivating: Press button à again.
The indicator lamp in the button goes out.
Automatic control of air volume and air
distribution are switched off.
Setting temperature
You can adjust the air temperature on each
side of the passenger compartment. You
should raise or lower the temperature setting
in small increments, preferably starting at
72‡ (22†).
XIncreasing/decreasing: Turn
temperature control ; and/or =
(Y page 121) slightly clockwise or
counterclockwise.
iIf you turn the temperature control fully
clockwise or counterclockwise for one side
of the vehicle, you are increasing or
decreasing the temperature for the other
side of the vehicle as well.
Adjusting air vents
GWarning!
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
may cause burns or frostbite to unprotected
skin in the immediate area of the air vents.
Always keep sufficient distance between
unprotected parts of the body and the air
vents. If necessary, use the air distribution
adjustment to direct the air to air vents in the
vehicle interior that are not in the immediate
area of unprotected skin.
For best possible performance of the climate
control:
XKeep the air intake grille in front of the
windshield free of snow, leaves, sticks, and
any other debris.
XAlways keep all air vents and grilles in the
passenger compartment free from
obstruction.
iFor draft-free ventilation, move the
adjustable center and side air vents to the
middle position.
Center air vents
:Left center air vent, adjustable;Right center air vent, adjustable=Thumbwheel for air volume control for
adjustable right center air vent
?Thumbwheel for air volume control for
adjustable left center air vent
XOpening/closing: Turn thumbwheels =
and ? in the required direction.
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XActivating: Press button ¥4
or z 5
.
The indicator lamp in the button comes on.
The climate control switches to the following
functions automatically:
R cooling on to dehumidify
R most efficient blower speed and heating
power, depending on outside temperature
R air flows onto the windshield and the front
door windows
R the air recirculation mode is switched off
i If you have activated on the defrost
function with button ¥ or z , you
cannot make any other settings.
XDeactivating: Press button ¥ or z
again.
The indicator lamp in the button goes out.
The previous settings are once again in
effect.
Windshield fogged on the outside
XSwitch the windshield wipers on
( Y page 82).
If the automatic mode of the climate control
is switched off:
XTurn air distribution control to position
P or O .
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.
GWarning!
Fogged windows impair visibility,
endangering 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 is activated, or press button
z or ¥ .XActivating: Press button g.
The indicator lamp in the button comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in button g is not lit
when the air recirculation mode is switched
on automatically.
If the air conditioning has been turned off
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
A quantity of outside air is added after
approximately 30 minutes.
XDeactivating: Press button g again.
The indicator lamp in the button goes out.
i The manually selected air recirculation
mode is deactivated automatically:
R after 5 minutes if the outside
temperature is below approximately
41‡ (5†)
R after 5 minutes if the air conditioning is
turned off
R after 30 minutes if the outside
temperature is above approximately
41‡ (5†)
Residual heat and ventilation
With the engine turned 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.
4 USA only
5 Canada only126Climate control systemControls in detail
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G 55 AMG
XUnscrew filler cap : from filler neck.XAdd engine oil as required. Be careful not
to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
! Excess oil must be siphoned or drained
off. It could cause damage to the engine
and emission control system not covered
by the Mercedes-Benz Limited Warranty.
XScrew filler cap : back on filler neck.
For more information on engine oil, see the
“Technical data” section (Y page 260) and
(Y page 261).
Coolant level
The engine coolant is a mixture of water and
anticorrosion/antifreeze.
When checking the coolant level, the vehicle
must be parked on level ground, and the
coolant temperature must be below 158‡
(70†).
GWarning!
In order to avoid any potentially serious burns:
RUse extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature gauge indicates
that the coolant is overheated.
RDo not remove the cap on the coolant
expansion tank if the coolant temperature
is above 158‡ (70†). Allow the engine to
cool down before removing the cap. The
coolant expansion tank contains hot fluid
and is under pressure.
RUsing a rag, slowly open the cap
approximately 1/2 turn counterclockwise
to relieve excess pressure. If opened
immediately, scalding hot fluid and steam
will be blown out under pressure.
RDo not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.
XUsing a rag, slowly open cap :
approximately 1/2 turn counterclockwise
to relieve excess pressure.
XContinue turning cap : counterclockwise
and remove it.
The coolant level is correct if the level
Rfor cold coolant: reaches the top of the
mark (plastic bridge) in coolant
expansion tank ;
Rfor warm coolant: is approximately 0.6 in
(1.5 cm) higher
XAdd coolant as required.XScrew cap : back on and tighten it.156Engine compartmentOperation
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VehicleDisplay messagesPossible causes/consequences and M Solutions:The tailgate is open.XClose the tailgate ( Y page 63).MYou are driving with the hood open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 153).
There is otherwise danger of an accident.
¡You are driving with at least one door open.XClose all doors.+Remove KeyYou have forgotten to remove the SmartKey.XRemove the SmartKey from the starter switch.+Get a new
key.The SmartKey is malfunctioning.XContact an authorized Mercedes-Benz Center.~Bluetooth
ReadyThe telephone has not yet been connected to the COMAND
system via Bluetooth ®
.XConnect the telephone to the COMAND system via
Bluetooth ®
.¥Top Up
Washer
FluidThe fluid level has dropped to approximately 1
/ 3 of total
reservoir capacity.XAdd washer fluid ( Y page 157).
Engine
Display messagesPossible causes/consequences and M Solutions;Certain electronic systems are unable to relay information to
the control system. The coolant temperature gauge or the
tachometer may have failed.XHave the electronic systems checked at an authorized
Mercedes-Benz Center.+Top Up
Coolant
See
Operator's
ManualThe coolant level is too low.XAdd coolant ( Y page 156).XIf you have to add coolant frequently, have the cooling
system checked at an authorized Mercedes-Benz Center.210Vehicle status messages in the multifunction displayPractical hints
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GWarning!
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
! Do not ignore the low engine coolant level warning. Extended driving with the message
and symbol displayed may cause serious engine damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant in the cooling system. The engine will
overheat causing major engine damage.
Display messagesPossible causes/consequences and M Solutions?Coolant
Stop, Turn
Engine OffThe coolant is too hot.XStop the vehicle immediately as soon as it is safe to do so.XTurn off the engine immediately.XEngage the parking brake.XOnly start the engine again after the message disappears.
You could otherwise damage the engine.XObserve the coolant temperature gauge in the instrument
cluster.XIf the temperature rises again: Contact an authorized
Mercedes-Benz Center immediately.
During severe operation conditions and stop-and-go city
traffic, the coolant temperature may rise close to 248‡
(120†).
GWarning!
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! The engine should not be operated with the coolant temperature above 248‡ (120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty.
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