climate control MERCEDES-BENZ G-CLASS SUV 2012 Owner's Manual

?
u To switch on the auxiliary heating/
ventilation
A , To check the status/set the depar-
ture time
Your vehicle comes with one remote control.
You may use one additional remote control
for your vehicle. For more information, please
contact a qualified specialist workshop.
The remote control has a maximum range of
approximately 300 metres. This range is
reduced by:
R sources of radio interference
R solid objects between the remote control
and the vehicle
R the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing
upwards when you press one of the but-
tons.
Switching on the auxiliar yheating/venti-
lation
X Press the ubutton.
ON is shown in the remote control display.
Switching off the auxiliary heating/venti-
lation
X Press the ^button.
OFF is shown in the remote control display.
Checkin gthe status of the auxiliary heat-
ing/ventilation
X Press the ,or. button.
The following messages may appear in the
display: Display Meaning
The auxiliary heating/
ventilation is switched
off. The auxiliary ventilation
is switched on. The num-
ber in the display shows
the remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating.
Ad
eparture time has
been activated. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary ventilation is cur-
rently selected. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary heating is currently
selected. The departure
time appears in the dis-
play. Setting the departure time
X
Press the ,or. button repeatedly
until the time to be changed appears in the
display.
X Press the uand^ buttons simulta-
neously.
The Îsymbol in the remote control dis-
play flashes.
X Press the ,or. button to set the
desired departure time.
i The longer you press the ,or.
button, the faster the time changes. 136
Operating the climate control systemClimate control

X
Press the uand^ buttons simulta-
neously.
The new departure time is stored.
Activating the set departure time
X Press the ,or. button repeatedly
until the desired departure time appears in
the display.
X Press the ubutton.
The Ísymbol and the departure time
appear in the display.
Deactivating a set departure time
X Press the ,or. button.
The status of the auxiliary heating is shown
in the display.
X Press the .button.
The first departure time stored appears in
the display.
X Press the ^button.
The display message OFF appears in the
display.
Replacing the batteries in the remote
control G
WARNING
Batteries contain poisonous substances.
Swallowing/ingesting batteries can result in
serious personal injury or death.
Always keep batteries away from children. If
a battery is swallowed, seek immediate med-
ical attention. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to a qualified spe- cialis
tworkshop or to a col-
lection point for used batter-
ies. You require a 6-V pin battery, type
2CR11108.
X
Prise apart the side arms of battery
cover ;and pull off battery cover ;.
X Remove battery :.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover ;back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. Operating the climate control system
137Climate control Z

Problems with the auxiliary heating/ventilation
Display messages Possible causes/consequences and
M Solutions
$
FAIL The signal transmission between the transmitter and the vehicle
is faulty.
X
Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. FAIL
© This display message will only appear if you attempt to activate
the auxiliary heating.
there is not enough fuel in the fuel tank, or the auxiliary heating is
faulty.
X
Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop. FAIL This display message may appear if you attempt to activate the
auxiliary heating or during a status query.
If the auxiliary heating does not switch on or has switched off while
running, this has occurred due to one of the following reasons:
R
the auxiliary heating was started more than twice when the
engine was switched off.
R the starter battery is not sufficiently charged.
R there is too little fuel in the fuel tank.
R the auxiliary heating is faulty.
If the auxiliary heating was switched on more than twice:
X Switch on the engine and let it run for more than 10 seconds.
X Make another attempt to switch on the auxiliary heating using
the remote control.
If the starter battery is not sufficiently charged:
X Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.
If there is not enough fuel:
X Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control. 138
Operating the climate control systemClimate control

Display messages Possible causes/consequences and
M Solutions
If the auxiliary heating is faulty:
X
Have the auxiliary heating checked at a qualified specialist
workshop. Adjusting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents .This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
outlets. If necessary, direct the airflow away
to a different area of the vehicle interior. General notes
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet grille on the bonnet free
of blockages, such as ice, snow or leaves.
R never cover the vents or ventilation grilles
in the vehicle interior.
i For virtually draught-free ventilation,
adjust the sliders of the air vents to the
centre position.
i If the automatic climate control con-
stantly differs from the set temperature or
if undesired draughts are noticeable, pro-
ceed as follows:
XOpen the side air vents
X Open the centre air vents
X Open the rear air vents
X Set the temperature to 22 †.
The automatic climate control adjusts
itself to the set temperature. Setting the centre air vents
Centre air vents
:
Centre air vent, left
; Centre air vent, right
= Centre vent thumbwheel, right
? Centre vent thumbwheel, left
X To open/close: turn thumbwheels =
and ?to the right or left. Setting the side air vents
Side air vents
:
Side air vent
; Swivelling side air vent
= Control for side air vent Adjusting the air vents
139Climate control Z

X
To open/close: turnthumbwheel =to the
left or right. Setting the rear-compartment air
vents
X
To open/close: turn thumbwheel :up or
down.
X To set the air direction: move slider;
for the corresponding rear-compartment
air vent to the left, right, up or down. 140
Adjusting the air ventsClimate control

In addition, the
Stop/Start inactive mes-
sage is shown in the AMG menu in the multi-
function display.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the ¤symbol reappears in
green in the multifunction display.
i The engine can be automatically switched
off an unlimited number of times.
i You can also activate the HOLD function
when the vehicle is stationary if the engine
has been switched off automatically. It is
then not necessary to continue applying
the brakes during the automatic stop
phase.W hen you depress the accelerator
pedal, the engine starts automatically and
the braking effect of the HOLD function is
deactivated. Depress the accelerator pedal
gently, as the engine must be started first.
i During automatic engine switch-off, the
climate control system only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop func-
tion can be deactivated by pressing the
ECO button (Y page 146). Automatic engine start The engine is started automatically if:
R
In general:
-you switch off the ECO start/stop func-
tion by pressing the ECO button.
- you release the brakes when in transmis-
sion position Dor N, when the HOLD
function is inactive.
R By the driver:
-you release the brakes when in transmis-
sion position Dor N.
- you depress the accelerator pedal.
- you engage reverse gear R.
- you move the transmission out of posi-
tion P.
- you switch to drive program Sor M.
- you unfasten your seat belt or open the
driver's door.
R By the system:
-the vehicle starts to roll.
- the brake system requires this.
- the temperature in the vehicle interior
deviates from the set range.
- the system detects moisture on the
windscreen when the air-conditioning
system is switched on.
- the battery's charge status is too low.
i Shifting the transmission to position P
does not start the engine. Driving
147Driving and parking Z

from the data show
nhere. You can find the
data applicable to your vehicle on the vehi-
cle's identification plate. Vehicle identification number (VIN)
:
VIN
In addition to the information on the vehicle
identification plate, the vehicle identification
number (VIN) is also stamped onto the chas-
sis on the right when viewed in the direction
of travel. Engine number
The engine number is stamped onto the
crankcase. You can obtain further informa-
tion from any qualified specialist workshop. Service products and capacities
Important safety notes
G
WARNING
When handling, storing and disposing of any
service products, please observe the relevant
regulations, as you could otherwise endanger
yourself and others.
Keep service products away from children.
To protec tyour health, do not allow service
products to come into contact with your eyes
or open wounds. See a doctor immediately if
any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products include the following:
R fuels (e.g. petrol, diesel)
R exhaust gas aftertreatmen tadditives, e.g.
AdBlue ®
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
R climate control system refrigerant
Components and service products must be
matched. Mercedes-Benz recommends that
you use products tested and approved by
Mercedes-Benz .They are listed in this
Mercedes-Ben zOwner's Manual in the appro-
priate section.
You can identify service products approved
by Mercedes-Ben zby the following inscrip-
tions on the container:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). The yhave no tnecessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centre or on the
Internet at http://bevo.mercedes-benz.com. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine Service products and capacities
341Technical data
Z

G
WARNING
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of
pure diesel fuel .When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is arisk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! When refuelling, only use diesel fuel that
conforms to the European standard EN 590
or is of equivalen tquality. Fuel that does
not conform to EN 590 can lead to
increased wear as well as damage to the
engine and exhaust system.
! Do no tuse the following:
R marine diesel
R heating oil
R bio-diesel
R vegetable oil
R petrol
R paraffin
R kerosene
Do not mix such fuels with diesel fuel and
do not use any special additives. This can
otherwise lead to engine damage.T his
does not include flow improver additives.
For further information, see "Flow improv-
ers".
! Vehicles with adiesel particle filter: in
countries outside the EU, only refuel with
low-sulphur Euro diesel with a sulphur con-
ten tunde r50p pm; otherwise the emission
control system could be damaged.
! Vehicles without adiesel particle fil-
ter: in countries where only diesel fuel with
a high sulphur conten tis available, you will
need to carry out your vehicle's oil change
at shorter intervals. More information
aboutt he interval for oil change can be
obtained from any qualified specialist
workshop.
Usually you will find information about the
fuel grade on the pump. If you cannot find the label on the petrol pump, ask the filling sta-
tion staff.
Information on refuelling (Y
page 157).
Low outside temperatures
In winter months, diesel fuel with an improved
cold flow quality is available. In Europe, the
EN 590 standard defines various climate-
dependent temperature categories. Malfunc-
tions can be avoided by refuelling with diesel
fuel that corresponds to the climatic specifi-
cations outlined in EN 590. At unusually low
outside temperatures, it is possible that the
flow characteristics of the diesel fuel could be
insufficient .Accordingly, diesel fuel from
warmer areas may not be suitable for opera-
tion in colder climati cconditions.
i Further information on country-specific
fuel properties can be obtained from oil
companies, e.g. at filling stations.
Flow improvers
Flow improvers can be added to improve the
cold resistance of diesel fuel. The effective-
ness of flow improvers cannot be guaranteed
with all fuels.
Only use flow improvers tested and approved
by Mercedes-Benz. During use, please
observe the information on operation.
Correct dosage and thorough mixing are deci-
sive factors in ensuring improvement in low-
temperature resistance. Under certain cir-
cumstances, an excessive dosage may
actually decrease low-temperature resist-
ance and should therefore be avoided. Follow
the manufacturer's dosing instructions.
Mix the additive into the diesel in good time,
before the flow characteristics of the diesel
become insufficient. Otherwise, malfunctions
can only be rectified by heating the entire fuel
system, e.g. by parking in a heated garage.
More information about recommended flow
improvers can be obtained from any qualified
specialist workshop. 344
Service products and capacitiesTechnical data