2012 MERCEDES-BENZ G-CLASS SUV fuel filter

would result in damage to the fuel system and
engine, which could lead to a vehicle fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines .Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
For further information on fuel and fuel quality
(Y page 341). Refuelling
Fuel filler flap !
AdBlue ®
is not a fuel additive and must
not be added to the fuel tank.IfA dBlue®
is
added to the fuel tank, this can lead to
engine damage. Example: fuel filler cap G 500
:
To open the fuel filler flap
; Tyre pressure table
= Fuel type
? To insert the fuel filler cap
When you open or close the vehicle with the
key, the fuel filler flap is automatically
unlocked or locked.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
nex tto the filling pump indicates the side of
the vehicle. The fuel filler flap is located to the
rear on the right.
Opening :
To open the fuel filler flap
; Tyre pressure table
= Fuel type
? To insert the fuel filler cap
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap. Refuelling
157Driving and parking Z

boosting effect. You will require considerably
more effor
tto steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
Vehicles with automatic transmission X
Shift the transmission to position P.
X Turn the key to position 0in the ignition
lock (Y page 143) and remove it.
The immobiliser is activated.
X Apply the parking brake firmly.
X Turn the steering wheel until the steering
wheel lock engages.
i If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
If you then open one of the front doors or
remove the key from the ignition, the auto-
matic transmission shifts to P.
If you shift the automatic transmission to
N before switching off the engine, the auto-
matic transmission remains in Neven if a
door is opened.
i The key can only be removed if the auto-
matic transmission is in position P.Parking brake
i
When you apply parking brake ;to brake
the vehicle, the brake lamps do not light up.
X To apply: pull parking brake ;up firmly.
Parking brake ;is applied. If the key is in position
1or 2in the ignition
lock, the !indicator lamp in the instru-
ment cluster is lit.
X To release: depress the brake pedal and
keep it depressed.
The selector lever lock is released.
X Pull parking brake ;up firmly.
X Press release button :on parking
brake ;and move parking brake ;down
to the stop.
The ! indicator lamp in the instrument
cluster goes out.
i If you pull away with parking brake ;
applied, a warning tone sounds. Parking up the vehicle
If you leave the vehicle parked up for longer
than four weeks, the battery may be damaged
by exhaustive discharging.
X Disconnect the battery.
or
X Connect the battery to a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop.
If you leave the vehicle parked up for longer
than six weeks, the vehicle may suffer dam-
age as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice. Driving tips
Short journeys
! Vehicles with adiesel particle filter: if
the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur during the automatic cleaning of the
diesel particle filter. This may lead to fuel
collecting in the engine oil and cause
engine failure. Therefore, if you frequently 164
Driving tipsDriving and parking

Display messages Possible causes/consequences and
M Solutions
8
Reserve fuel level The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated when the fuel level
drops into the reserve range.
X
Refuel at the neares tfilling station. C There is only a very small amoun
toffuel in th efuel tank.
The auxiliary heating canno tbe operated.
X Refuel at the nearest filling station without fail. ¸
Replace
air cleaner Vehicles with
adiesel engine: the engine air filter is dirty and
must be replaced.
X Visit a qualified specialist workshop. !
Clean
the fuel fil‐
ter Vehicles with
adiesel engine: there is water in the fuel filter.
The water must be drained off.
X Visit a qualified specialist workshop. Ø
Refill AdBlue See
Owner's Manual The AdBlue
®
level has fallen below the reserve range. Awarning
tone also sounds.
X Have AdBlue ®
refilled as soon as possible at a qualified spe-
cialist workshop.
or
X Refill AdBlue ®
yourself as soon as possible (Y page 160).Ø
Refill AdBlue No
start in .. km The AdBlue
®
level is only sufficient for the indicated distance. A
warning tone also sounds.
X Have AdBlue ®
refilled as soon as possible at a qualified spe-
cialist workshop.
or
X Refill AdBlue ®
yourself immediately ( Ypage 160). Ø
Refill
AdBlue Eng.
start not possible The AdBlue
®
tan kis empty. Awarning tone also sounds. You can
no longer start the engine.
X Consult a qualified specialist workshop immediately.
or
X Refill AdBlue ®
yourself immediately ( Ypage 160). Ø
Check AdBlue See
Owner's Manual The AdBlue
®
system is malfunctioning. A warning tone also
sounds.
X Visi taqualified specialist workshop. 240
Display messagesOn-board computer and displays

The ASSYST service interval display does not
take into account any periods of time during
which the battery is disconnected.
Hiding aservice message X
To hide the service message, press the
% back button on the multifunction
steering wheel ( Ypage 31)( Ypage 214).
Displaying service messages Use the buttons on the multifunction steering
wheel.
X Switch the ignitio non.
X Press VorU to select the standard
display menu on the steering wheel
(Y page 215).
X Press &or* to select the ASSYST
service interval display.
The ¯ or± service symbol and the
service due date are displayed.
Information about Service Arduous operating conditions or increased
loads on the vehicle will require some service
work to be performed more often than for a
vehicle in normal use. Such arduous condi-
tions include regular city driving with frequent
intermediate stops and use in mountainous
terrai noronp oor road surfaces.
For example, if the vehicle is used under ardu-
ous operating conditions, have air filters,
engine oil and oil filters changed frequently
and check the wheels often.F urther informa-
tion can be obtained at a qualified specialist
workshop, e.g. a Mercedes-Ben zService
Centre. Fuel/water separator
H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. !
If you continue driving without having the
fuel/water separator serviced, this could
cause damage to the engine. Any resulting
damage is not covered by the warranty.
If the fuel/water separator needs servicing,
the following message appears in the multi-
function display: You will also hear a brief warning tone.
X
Visit a qualified specialist workshop as
soon as possible. Care
General notes
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents rec-
ommended and approved by Mercedes-Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly Care
295Maintenance and care Z

and, if applicable, the auxiliary heating before
refuelling.
G
WARNING
Fuels are poisonous and hazardous to health.
There is a danger of injury.
Do no tswallow fuel or let it come into contact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of the reach of chil-
dren.
If you or others come into contact with fuel,
observe the following:
R Wash the fuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughly with clean water immediately. Seek
immediate medical attention.
R If fuel is swallowed, seek immediate medi-
cal attention. Do not induce vomiting.
R Change any clothing that has come into
contac twith fuel immediately.
Tank capacity Total capacity
All models
Approx-
imately 96.0 l Of which reserve fuel
All models
Approx-
imately 14.0 l Petrol (EN 228)
Fuel grade
!
Do not use diesel to refuel vehicles with a
petrol engine. Even asmall quantity of die-
sel will damage the fuel injection system.
! Only refuel using unleaded petrol with at
least 95 RON/85 MON that conforms to European standard EN 228 or E DIN
51626-1 or an equivalent specification.
Fuel with this specification may contain up
to 10 % ethanol.
! Do not use the following:
R E85 (petrol with 85 % ethanol)
R E100 (100 %ethanol)
R M15 (petrol with 15 % methanol)
R M85 (petrol with 85 % methanol)
R M100 (100 % methanol)
R Petrol with metallic additives
R Diesel
Do not mix these fuels with petrol, and do
not use any additives. This can otherwise
lead to engine damage. This does not
include cleaning additives for the removal
and prevention of residue build-up. Only
cleaning additives recommended by
Mercedes-Benzs hould be added to petrol,
see "Additives". You can obtain further
information from any Mercedes-Benz
Service Centre.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
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.
i E10 fuel contains up to 10% bioethanol.
Your vehicle is suitable for use with E10
fuel. You can refuel your vehicle using E10
fuel.
i As a temporary measure, if the recom-
mended fuel is not available, you may also
use unleaded petrol with an octane rating
of 91 RON/82.5 MON. This may reduce
engine performance and increase fuel con-
sumption. Avoid driving at full throttle.
Information on refuelling (Y page 156).342
Service products and capacitiesTechnical data

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

Petrol engines MB Approval
G5
00 229.3, 229.5
G 63 AMG
229.5
G 65 AMG
229.5
Diesel engines MB Approval
G3
50 BlueTEC 228.51,
229.31, 229.51
i
Restriction for AMG vehicles: only
engine oils SAE 0W-40 or SAE 5W-4 0may
be used.
i If the engine oils listed in the table are not
available, you may add the following engine
oils until the next oil change:
R Vehicles with apetrol engine: MB
Approval 229.1 229.3 or ACEA A3
R Vehicles with adiesel engine: MB
Approval 229.1, 229.3, 229.5 or
ACEA C3
Use only SAE 0W-40 or SAE 5W-40 engine
oils for AMG vehicles.
This may only be topped up once and the
quantity must not be greater than 1.0 l.
Capacities The following values refer to an oil change
including the oil filter.
The missing values for the following model
were not available at the time of going to
print:
R
G 63 AMG
R G 65 AMG Vehicle model Capacity including
oil filter G5
00 9.0 l
G3
50 BlueTEC 12.5 l Vehicle model Capacity including
oil filter G 63 AMG
G 65 AMG
Additives
!
Do not use any additives with the engine
oil. This could damage the engine.
Engine oil viscosity Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity
rating, it flows slowly; the lower the viscosity,
the faster it flows.
Engine oil selection is based on the respective
outside temperatures and in accordance with
the SAEc lassification (viscosity). The table
shows you which SA Eclassifications are to be
used. The low-temperature properties of
engine oils can be significantly impaired dur-
ing operation due to, for example, ageing or
soot and fuel accretion. It is therefore
strongly recommended to observe regular oil
changes using an approved engine oil with the
appropriate SA Eclassification. Brake fluid
G
WARNING
Over a period of time, the brake fluid absorbs
moisture fro mthe air; This lowers its boiling
point. 346
Service products and capacitiesTechnical data