2012 MERCEDES-BENZ G-Class heating

Switching the seat heating on/off
General notes The red indicator lamps in the button indicate
the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off.
One or more of the indicator lamps in the
seat heating button are flashing.
X Make sure that the SmartKey is in position
2 in the ignition lock.
Front-seat heating i
The system automatically switches down
from level 3 to level 2 after approximately
five minutes.
The system automatically switches down
from level 2 to level 1 after approximately
ten minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X To switch on: press button : repeatedly
until the desired heating level is set.
X To switch off: press button : repeatedly
until all the indicator lamps go out. Rear-seat heating
:
Level 1 (normal heating)
; Level 2 (rapid heating)
i The system automatically switches down
from level 2 (rapid heating) to level 1
(normal heating) after approximately five
minutes.
The system automatically switches off
approximately 30 minutes after it is set to
level 1.
X To select level 1: press the upper section
of button :.
An indicator lamp lights up.
X To deactivate level 1: press the upper
section of button :.
The indicator lamp goes out.
X To select level 2: press the lower section
of button ;.
Both indicator lamps light up.
X To deactivate level 2: press the lower
section of button ;.
Both indicator lamps go out. 80
Seats
Seats, steering wheel and mirrors

Problems with the seat heating
If one or all of the indicator lamps in the seat
heating button are flashing, the seat heating
has switched off automatically. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X
Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
Once the
battery is sufficiently charged, the
seat heating will switch back on
automatically. Switching the seat ventilation on/off
Switching on/off Seat ventilation is only available for the front
seats.
The
three

blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
i If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the SmartKey is in position
2 in the ignition lock.
X To switch on: press button : repeatedly
until the desired ventilation level is set.
i If you open the side windows and the
sliding sunroof using the SmartKey
(Y page 69), the driver's seat ventilation
automatically switches

to the highest level.X
To switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat ventilation If one or all of the indicator lamps in the seat
ventilation button are flashing, the seat
ventilation has switched off automatically.
The vehicle's electrical system voltage is too
low because too many electrical consumers
are switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
Once the

battery is sufficiently charged, the
seat ventilation will switch back on
automatically. Steering wheel
Important safety notes
You can

adjust the steering wheel electrically. G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
When you adjust the steering wheel, make
sure that:
R the steering wheel can be reached with
your arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrument cluster clearly. Steering wheel
81
Seats, steering wheel and mirrors Z

Adjusting the steering wheel
:
To adjust the steering wheel position
(fore-and-aft adjustment)
; To adjust the steering wheel height
X Make sure that the SmartKey is in position
1 or 2 in the ignition lock.
i If the driver's door is open, the steering
wheel can

be adjusted for up to 30 minutes
after the ignition has been switched off.
X Press the lever in the direction of
arrow : or ; until the steering wheel is
in the desired position.
You can find more information under:
R EASY-ENTRY/EXIT feature (

Y page 83)
R Storing settings ( Y page 85)Steering wheel heating
Switching on/off The steering-wheel heating heats the leather
areas of the steering wheel. :
To switch on the steering-wheel heating
; Indicator lamp
= To switch off the steering-wheel heating
X To switch on/off: make sure that the
SmartKey is

in position 1 or 2 in the ignition
lock.
X Turn the lever in the direction of arrow :
or =.
Indicator lamp ; lights up or goes out.
i The steering wheel heating does not
switch off automatically.
i The steering

wheel heating may switch off
temporarily if:
R the temperature of the vehicle interior is
above 86 ‡ (30 †).
R the temperature of the steering wheel is
above 95 ‡ (35 †).
Indicator lamp ; remains on.
i The steering wheel heating is deactivated
if you remove the SmartKey from the
ignition lock. 82
Steering wheel
Seats, steering wheel and mirrors

Problems with the steering wheel
heating
If steering wheel heating indicator lamp
; is
flashing, the steering wheel heating has
switched off automatically. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
Once the
battery is sufficiently charged, the
steering wheel heating will switch back on
automatically. Steering wheel EASY-ENTRY/EXIT
feature
General notes The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board
computer (Y page 161).
Important safety notes
G
WARNING
You must make sure no one can become
trapped or injured by the moving steering
wheel when the EASY-ENTRY/EXIT feature is
activated.
To stop steering maneuver do one of the
following:
R press the steering column adjustment
switch.
R press one of the memory function position
buttons.
R press the memory button.
Do not leave children unattended in the
vehicle, or

with access to an unlocked vehicle.
Children could open the driver's door and
unintentionally activate the EASY-ENTRY/ EXIT feature. This could result in an accident
and/or serious personal injury.
G
WARNING
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
! Do not activate the EASY-ENTRY/EXIT
feature, if

the seat backrest is reclined too
far backwards. This can damage the front
or rear seats. You must first move the
backrest to a vertical position.
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel moves upwards and
towards the dashboard if:
R
you remove

the SmartKey from the ignition
lock or
R you open the driver's door with the
SmartKey in position 0 or 1 in the ignition
lock.
i The steering wheel only moves upwards
and towards the dashboard if it has not
already reached the upper end stop.
Position of the steering wheel for
driving The steering wheel is moved to the last
selected position when:
R
the driver's door is closed.
R you insert the SmartKey into the ignition
lock
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the setting with the memory
function ( Y page 85). Steering wheel
83
Seats, steering wheel and mirrors Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please
note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 20). Overview of climate control systems
Important safety notes
G
WARNING
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 blocked filter replaced at a Mercedes-
Benz Center as soon as possible. G
WARNING
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.
The automatic climate control is only
operational when the engine is running 4
.
Optimum operation is only achieved if you
drive with the side windows and sliding
sunroof closed. i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature ( Y page 69).
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 Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance
Booklet.
4 The residual heat function can only be switched on/off if the ignition is switched off.104
Overview of climate control systems
Climate control

Setting the airflow
X Turn the SmartKey to position 2 in the
ignition lock.
X Press the à button.
The indicator

lamp in the à button goes
out.
X To increase/reduce: turn control :
clockwise or counterclockwise
(Y page 105).
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 ¥5
or z 6
button,
you cannot adjust any of the other settings.
X Turn the SmartKey to position 2 in the
ignition lock.
X To switch on: press the ¥ 5
or z 6
button.
The indicator lamp in the ¥5
or z 6
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 108). X
To deactivate: press the ¥5
or z 6
button.
The indicator lamp in the ¥5
or z 6
button goes off. The previously selected
settings come into effect again.
or
X Press 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 X
Activate the defrosting function.
X If necessary, activate the windshield
heating (
Y page 108).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside X
Activate the windshield wipers.
X Close the center air vents.
When automatic air distribution is switched
off:
X Turn the air distribution thumbwheel to the
O or P symbol.
i You should only select this setting until
the windshield is clear again.
X If necessary, activate the windshield
heating (Y page 108). Switching the windshield defroster
on/off
G
WARNING
Any accumulation of snow and ice should be
removed from the windshield before driving.
5 USA only.
6 Canada only.108
Operating the climate control system
Climate control

Activating/deactivating air-
recirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated. G
WARNING
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 ¥.
X Turn the SmartKey to position 2 in the
ignition lock.
X To 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.
X To 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.
X Turn the SmartKey to position 0 in the
ignition lock or remove it.
X To activate: press the Á button.
The indicator

lamp in the Á button lights
up.
X To 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
G
WARNING
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 110
Setting the air vents
Climate control

Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact.
Direct skin contact with fuels and the
inhalation
of
fuel vapors are damaging to your
health. G
WARNING
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge. This could cause the gasoline
to spray back out when removing the fuel
pump nozzle, which could cause personal
injury.
! Do not

use diesel to refuel vehicles with a
gasoline engine. Even small amounts of the
wrong fuel result in damage to the fuel
system and engine.
! Do not switch on the ignition if you
accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel lines.
Notify a qualified specialist workshop and
have the fuel tank and fuel lines drained
completely. Gasoline
Fuel grade !
You should only refuel with unleaded
premium-grade gasoline as this avoids
damaging the catalytic converter.
If engine running problems are apparent,
have the cause checked immediately and
repaired. Excess unburned fuel can
otherwise enter the catalytic converter,
leading to overheating and possibly
causing a fire.
i Only refuel

with premium-grade unleaded
gasoline with a specified minimum octane
number of 91 (average value of 96 RON/
86 MON).
You will usually find information about the
fuel grade on the pump. If you cannot find the label on the gasoline pump, ask the gas
station staff.
You
can

find more information under "Fuel"
(Y page 273), by contacting an authorized
Mercedes-Benz Service Center or by
visiting http://bevo.mercedes-
benz.com.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can. Refueling
Fuel filler flap When you open or close the vehicle with the
SmartKey, the fuel filler flap is automatically
unlocked or locked.
The position of the fuel filler cap
8
is
displayed in

the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle. The fuel filler flap is located to the
rear on the right. Example: G 550 fuel filler cap
:
To open the fuel filler flap
; Tire pressure table
= Fuel type
? To insert the fuel filler cap
Opening X
Switch off the engine. Refueling
125
Driving and parking Z