2011 MERCEDES-BENZ G55AMG cooling

Brake fluid (notes) .........................280
Display messages ..........................171
High-performance brake system ....139
Important safety notes ..................137
Maintenance .................................. 138
Parking brake ........................ 135, 139
Warning lamp ................................. 183
Breakdown
see Accident (notes)
Brush guard ....................................... 207
Bulbs Backup lamp .................................. 101
Brake lamp .................................... 100
Cornering light function ...................98
fog lamps ......................................... 98
Overview .......................................... 97
rear fog lamp ................................. 101
Tail lamp ........................................ 100
Turn signal lamp .............................. 99
C
CAC (Customer Assistance Center) .........20
California
Important notice for retail
customers and lessees ....................18
Capacities
see Technical data
Care
Carpets .......................................... 226
Car wash ........................................ 221
Chrome parts ................................. 224
Display ........................................... 224
Gear or selector lever ....................225
Headlamps ..................................... 224
Matte finish ................................... 223
Notes ............................................. 220
Paint .............................................. 222
Plastic trim .................................... 225
Power washer ................................ 222
Rear view camera .......................... 224
Roof lining ...................................... 226
Seat belt ........................................ 226
Seat covers .................................... 225
Sensors ......................................... 224
Steering wheel ............................... 225
Tail pipes ....................................... 224
Trim strips ..................................... 225
Washing by hand ........................... 222
Wheels ........................................... 222
Windows ........................................ 223
Wiper blades .................................. 223
Wooden trim .................................. 225
Cargo compartment enlargement ... 194
Cargo tie down rings ......................... 196
CD player/CD changer Operating (on-board computer) .....161
Center console
Overview .......................................... 29
Central locking
Automatic locking (on-board
computer) ...................................... 165
SmartKey ......................................... 62
Changing bulbs
Headlamps ....................................... 96
Changing gears .................................. 123
Checklist After driving off-road ...................... 143
Before driving off-road ...................143
Checklist (off-road driving) .............. 143
Child-proof locks Rear doors ....................................... 54
Children
In the vehicle ................................... 49
Restraint systems ............................ 50
Child seat
Automatic recognition .....................39
Automatic recognition/air bag
deactivation, self-test ......................41
LATCH-type (ISOFIX ) child seat
anchors ............................................ 52
Special seat belt retractor ...............51
Top Tether ....................................... 53
Troubleshooting ............................... 42
Chrome parts (cleaning
instructions) ...................................... 224
Cigarette lighter ................................ 199
Climate control Activating/deactivating .................108
Activating/deactivating air-
recirculation mode .........................111
Controlling automatically ...............109
Cooling with air dehumidification ..108
Defrosting the windshield ..............110Index5

Demisting the windows .................. 110
Dual-zone automatic climate
control ........................................... 107
Important safety notes ..................106
Indicator lamp ................................ 109
Problems with "cooling with air
dehumidification" ........................... 109
Problems with the rear window
heating .......................................... 111
Refrigerant ..................................... 279
Setting the air distribution .............109
Setting the airflow .........................110
Setting the air vents ......................113
Setting the temperature ................109
Switching the rear window
defroster on/off ............................ 111
Switching the residual heat
function on/off .............................. 112
Windshield defroster ......................110
Cockpit
Overview .......................................... 25
Consumption statistics (on-board
computer) .......................................... 166
Convenience closing feature .............. 71
Convenience opening feature ............ 71
Coolant (engine) Checking the level .........................217
Display message ............................ 174
Notes ............................................. 280
Temperature gauge ........................ 156
Cooling
see Climate control
Cornering lamps .................................. 94
Correct use .......................................... 20
Cruise control Cruise control lever .......................147
Display message ............................ 178
Function/notes ............................. 147
Cup holders ........................................ 197
Customer Assistance Center (CAC) ............................................... 20
Customer Relations Department ....... 20D
Daytime running lamps Switching on/off (on-board
computer) ...................................... 164
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 164
Interior lighting (on-board
computer) ...................................... 165
Demisting the windshield ................. 110
Differential locks ............................... 129
Digital speedometer ......................... 160
Display (cleaning instructions) ........ 224
Display messages Calling up (on-board computer) .....169
Clearing (on-board computer) ........169
Driving systems ............................. 178
Safety systems .............................. 170
Service interval display ..................219
Distance recorder ............................. 160
Door Automatic locking ............................ 68
Automatic locking (on-board
computer) ...................................... 165
Display message ............................ 181
Emergency locking ........................... 68
Emergency unlocking .......................68
Opening (from inside) ......................67
Door control panel
Overview .......................................... 31
Doors
Important safety notes ....................67
Drinking and driving ......................... 136
Drinks holder see Cup holders ............................. 197
Driving abroad ..................................... 90
Driving in mountainous terrain Approach/departure angle ............145
Driving downhill ............................. 146
Gradient-climbing capability
(maximum) ..................................... 146
Driving on flooded roads .................. 1406Index

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
which was available at the time of
purchase. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
relevant systems and functions.
Overview of climate control systems
Important safety notes
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
visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at an authorized Mercedes-Benz
Center.
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.
Automatic climate control controls the
temperature and the humidity in the vehicle
interior and filters undesirable substances
from the air.
Automatic climate control is only operational
when the engine is running 6
. Optimum
operation is only achieved when you drive
with the side windows and the sliding sunroof
closed.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 71).
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. A clogged 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.6 The "residual heat" function can only be switched on/off if the ignition is switched off.106Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control (2-zone):To increase/reduce the airflow (Y page 110)To switch climate control on/off ( Y page 108);To set the temperature, left ( Y page 109)=To set the temperature, right ( Y page 109)?To set the air distribution ( Y page 109)Aª To switch the rear window defroster on/off (USA only) ( Y page 111)A£ To switch the rear window defroster on/off (Canada only) ( Y page 111)BTo activate/deactivate cooling with air dehumidification ( Y page 108)To activate/deactivate the residual heat function ( Y page 112)CTo set climate control to automatic ( Y page 109)DTo activate/deactivate air-recirculation mode ( Y page 111)E¥ To defrost the windshield (USA only) ( Y page 110)Ez To defrost the windshield (Canada only) ( Y page 110)Operating the climate control system
Notes about using THERMATIC
automatic climate control (2-zone)
The following contains notes and
recommendations on optimum use of dual-
zone automatic climate control.
R Activate climate control using the à and
Á buttons. The indicator lamps above
the à and Á buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "defrosting" function briefly
until the windshield is clear again.
R Only use "air-recirculation" mode briefly,
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows couldOperating the climate control system107Climate controlZ

otherwise fog up as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
R 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.
R At very low temperatures, the rear window
defroster is only switched on once the
vehicle interior has warmed up.
Activating/deactivating climate
control
Important information
GWarning!
When the climate control system is
deactivated, the outside air supply and
circulation are also deactivated. Only choose
this setting for a short time. Otherwise the
windows could fog up, impairing visibility and
endangering you and others.
i Switch on climate control primarily using
the à button ( Y page 109).
Activating/deactivating
XTurn the key to position 2 in the ignition
lock.XTo switch on: turn control : clockwise to
the desired position (except position 0)
( Y page 107).XThe previously selected settings come into
effect again.XTo switch off: turn control : counter-
clockwise to position 0(Y page 107).Switching cooling with air
dehumidification 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
dehumidified according to the temperature
selected.
GWarning
If you switch 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.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a
malfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This
coolant does not contain
chlorofluorocarbons, and therefore does
not damage the ozone layer.
Activating/deactivating
! If the cooling with air dehumidification
does not switch on, it is possible that the
climate control system has lost coolant.
Have the cooling with air dehumidification
checked at a qualified specialist workshop.
XTo activate: press the Á button.
The indicator lamp in the Á button lights
up.XTo switch off: press the Á button.
The indicator lamp in the Á button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.108Operating the climate control systemClimate control

Problems with the cooling with air
dehumidification function
If the indicator lamp in the Á button does
not go out or flashes when switched on, the
cooling with air dehumidification function is
switched off due to a malfunction. You can no
longer switch on the cooling with air
dehumidification function.
XConsult a qualified specialist workshop.
Setting climate control to automatic
GWarning
If you switch 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.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature of the dispensed air, the airflow
and the air distribution.
Automatic mode will achieve optimal
operation if cooling with air dehumidification
is also activated. If desired, cooling with air
dehumidification can be deactivated.
XTurn the key to position 2 in the ignition
lock.XSet the desired temperature.XTo switch on: press the à button.
The indicator lamp in the à button lights
up. Automatic air distribution and airflow
are activated.XTo switch off: press the à button.
The indicator lamp in the à button goes
out. Automatic air distribution and airflow
are deactivated.
Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides.
XTurn the key to position 2 in the ignition
lock.XTo increase/reduce: turn controls ; and
= clockwise or counter-clockwise
( Y page 107).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
i If you turn the temperature control on one
side of the vehicle fully clockwise or
counter-clockwise, you will increase or
reduce the temperature on the other side
of the vehicle at the same time.
Setting the air distribution
You can set the air distribution for the entire
vehicle.
The symbols for the air distribution have the
following meanings:
SymbolMeaningMDirects the airflow through the
defroster vents to the
windshield and side windowsQDirects the airflow to the entire
vehicle interiorODirects the airflow through the
footwell and side air ventsPDirects the airflow through the
center and side air ventsXTurn the key to position 2 in the ignition
lock.XPress the à button.
The indicator lamp in the à button goes
out.XTurn control ?(Y page 107) to the
corresponding symbol. The control can
also be turned to the area between two
symbols.Operating the climate control system109Climate controlZ

Setting the airflowXTurn the key to position 2 in the ignition
lock.XPress the à button.
The indicator lamp in the à button goes
out.XTo increase/reduce: turn
thumbwheel : clockwise or counter-
clockwise ( Y page 107).
i
The airflow from the rear-compartment
vents and the center vents is the same.
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the defrosting
function until the windshield is clear again.
i When you switch on the "defrosting"
function using the ¥7
or z 8
button,
you cannot adjust any of the other settings.
XTurn the key to position 2 in the ignition
lock.XTo switch on: press the ¥7
or z 8
button.
The indicator lamp in the ¥7
or z 8
button comes on.
The climate control system switches to the
following functions:
R cooling with air dehumidification on
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
i If necessary, also activate the windshield
defroster ( Y page 110).
XTo deactivate: press the ¥7
or z 8
button.
The indicator lamp in the ¥7
or z 8
button goes off. The previously selected
settings come into effect again.
or
XPress the à button.
The indicator lamp in the à button lights
up. The indicator lamp in the z button
goes out. Airflow and air distribution are set
to automatic mode.
Defrosting the windows
Windows fogged up on the inside
XActivate the "defrosting" function.XIf necessary, activate the windshield
defroster ( Y page 110).
i
You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
XSwitch on the windshield wipers.XClose the center air vents.
When automatic air distribution is switched
off:
XTurn the air distribution thumbwheel to the
O or P symbol.
i
You should only select this setting until
the windshield is clear again.
XIf necessary, activate the windshield
defroster ( Y page 110).
Activating/deactivating windshield
heating
GWarning
Any accumulation of snow and ice should be
removed from the windshield before driving.
7 USA only.
8 Canada only.110Operating the climate control systemClimate control

from outside. The air already inside the
vehicle will then be recirculated.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 ¥ .
XTurn the key to position 2 in the ignition
lock.XTo switch on: press the g button.
The indicator lamp in the g button lights
up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. When air-recirculation mode
is activated automatically, the indicator
lamp in the g button is not lit.
Outside air is added after about 30
minutes.
XTo switch off: press the g button.
The indicator lamp in the g button goes
out.
i Air-recirculation mode switches off
automatically:
R after approximately five minutes if
outside temperatures are less than about
41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes if outside
temperatures are over about
41 ‡ (5 †)
Activating/deactivating the residual
heat function
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the coolant temperature and
on the interior temperature that has been set.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated.XTurn the key to position 0 in the ignition
lock or remove it.XTo activate: press the Á button.
The indicator lamp in the Á button lights
up.XTo switch off: press the Á button.
The indicator lamp in the Á button goes
out.
i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low
Setting the air vents
Important safety notes
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
could 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.
112Setting the air ventsClimate control