MERCEDES-BENZ G-CLASS SUV 2014 Owners Manual

Fuel
Important safety notes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and
explosion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before
refueling. G
WARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come
into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
R Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance
without delay.
R If fuel is swallowed, seek medical
assistance without delay. Do not induce
vomiting.
R Immediately change out of clothing which
has come into contact with fuel.
Tank capacity Total capacity
All models
25.4 US gal
(96.0 l) Of which reserve
All models
Approx.
3.7 US gal (14.0 l) Gasoline (EN 228)
Fuel grade
!
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.
! 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.
! To ensure the longevity and full
performance of the engine, only premium-
grade unleaded gasoline may be used.
If there is no premium-grade unleaded
gasoline available and regular unleaded
gasoline must be used, please observe the
following precautions:
R only fill the fuel tank to half full with
regular unleaded gasoline and fill the rest
with premium-grade unleaded gasoline
as soon as possible.
R do not drive at the maximum speed.
R avoid sudden acceleration.
R if the vehicle is carrying a light load, e.g.
two passengers without luggage, do not
allow the engine to rev above 3000 rpm.
R if the vehicle is fully loaded or is being
operated in mountainous terrain, do not
depress the accelerator pedal further
than Ôof the pedal travel.
! 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.
Only refuel using premium-grade unleaded
gasoline with a minimum octane rating of 91. Service products and filling capacities
259Technical data Z

Reformulated Gasoline (RFG) and/or
unleaded gasoline with additives can be used.
The concentration of additives in the fuel,
however, must not exceed 10%, e.g.:
R Ethanol
R TAME
R ETBE
R IPA
R TBA
For MTBE, the concentration should not
exceed 15%.
The concentration of methanol in gasoline,
including other additives, must not exceed
3%.
Using mixtures of methanol and ethanol is not
permitted. Gasohol, a mixture of 10 %ethanol
and 90% unleaded gasoline, may be used.
All of these mix fuels must fulfill the fuel
requirements, e.g.:
R knock resistance
R boiling point
R vapor pressure
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the staff for
assistance.
i For further information, consult an
authorized Mercedes-Benz Center or on
the Internet at http://www.mbusa.com
(USA only).
Information on refueling ( Ypage 101).
AMG vehicles
! Only refuel using super-grade unleaded
gasoline with at least 98 RON/88 MON
that conforms to European standard
EN 228 or an equivalent specification.
You could otherwise impair engine output
or damage the engine.
! Premium-grade unleaded gasoline with
an octane rating of 95 RON/85 MON may
be used as a temporary measure if the
recommended fuel is not available. This
may reduce engine performance and increase fuel consumption. Do not drive at
full throttle.
! Regular unleaded gasoline with an octane
rating of 91 RON/82.5 MON may also be
used as an emergency measure if the
recommended fuel is not available.
Doing so results in noticeably higher fuel
consumption, and the engine power output
is noticeably reduced. Avoid driving at full
throttle.
If only regular unleaded gasoline with an
octane rating of 91 RON/82.5 MON or
lower is available, you must have the
vehicle adapted to this fuel at a qualified
specialist workshop.
Additives
! Do not refuel with low-grade fuel and do
not use fuel additives that are not tested
and approved for Mercedes-Benz vehicles.
Damage to or malfunctions of the fuel
system may otherwise occur.
One of the main problems of poor fuel quality
is the forming of deposits that are created
during the gasoline combustion process.
Mercedes-Benz recommends that you use
branded fuels that have additives.
If you use fuels without these additives over
a longer period of time, carbon deposits may
build up. These deposits form at the inlet
valves and in the combustion chamber in
particular.
This could lead to engine problems, e.g.:
R longer engine warm-up phase
R uneven idle
R engine noise
R misfiring
R loss of power
Carbon deposits may form if the availability
of gasoline with relevant additives is
insufficient (in certain regions). In this case,
Mercedes-Benz recommends additives
approved for use in Mercedes-Benz vehicles;
see http://bevo.mercedes-benz.co m.260
Service products and filling capacitiesTechnical data

For a list of approved products, consult an
authorized Mercedes-Benz Center. Comply
with the instructions for use on the product
label.
Do not mix other fuel additives with fuel. This
causes unnecessary costs and could damage
the engine.
Notes on fuel consumption H
Environmental note
CO 2(carbon dioxide) is the gas which
scientists believe to be principally responsible
for global warming (the greenhouse effect).
Your vehicle's CO 2emissions are directly
related to fuel consumption and therefore
depend on:
R efficient use of the fuel by the engine
R driving style
R other non-technical factors, such as
environmental influences, road conditions
or traffic flow
You can minimize your vehicle's CO 2
emissions by driving carefully and having it
serviced regularly.
The vehicle will use more fuel than usual in
the following situations:
R at very low outside temperatures
R in city traffic
R on short journeys
R in mountainous terrain
R when towing a trailer Engine oil
Filling 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 Vehicle model Capacity including
oil filter G 550
2.4 US gal (9.0 l)
G 63 AMG
Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics:
R
Notes on engine oil
R Additives
R Viscosity Refrigerant of the air-conditioning
system
! Never use refrigerant R 12 (CFC) or
mineral lubricants. Otherwise, you could
damage the air-conditioning system.
The air-conditioning system is filled with
R134a (HFC) refrigerant and a special PAG
lubricant. Brake fluid
G
WARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
Observe the important safety notes for
service products (Y page 258).
Only use brake fluid approved by Mercedes-
Benz according to MB Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist Service products and filling capacities
261Technical data Z

workshop or on the Internet at
http://bevo.mercedes-benz.com.
i
Have the brake fluid regularly replaced at
a qualified specialist workshop. Coolant
Important safety notes G
WARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB Specifications for
Service Products 310.1, e.g. on the
Internet at
http://bevo.mercedes-benz.com. Or
contact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
R corrosion protection
R antifreeze protection
R raising the boiling point
If the coolant has antifreeze protection down
to -35 ‡ (-37 †), the boiling point of the coolant in the pressurized system is
approximately 266 ‡ (130 †).
The antifreeze/corrosion inhibitor
concentration in the engine cooling system
should:
R
be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
R not exceed 55% (antifreeze protection
down to -49 ‡ [-45 †]). Otherwise, heat
will not be dissipated as effectively.
If the vehicle has lost coolant, add equal
amounts of water and antifreeze/corrosion
inhibitor. Mercedes-Benz recommends an
antifreeze/corrosion inhibitor in accordance
with MB Specifications for Service Products
310.1.
The coolant is checked with every
maintenance interval at a qualified specialist
workshop.
i When the vehicle is first delivered, it is
filled with a coolant mixture that ensures
adequate antifreeze and corrosion
protection.
The engine cooling system is filled with
coolant at the factory which contains
antifreeze/corrosion inhibitor that ensures
protection down to approximately -35 ‡
(-37 †).
Your vehicle has a range of aluminum
components. Aluminum components in the
engine make it necessary to use antifreeze/
corrosion inhibitor that has been specifically
formulated to protect the aluminum parts.
Failure to use such anticorrosion/antifreeze
coolant will result in a significantly shortened
service life.
The coolant must be used throughout the year
in order to maintain the necessary corrosion
protection and to provide protection from
overheating. In the Maintenance Booklet, you
can find information on the intervals for
renewal.
The renewal interval is determined by the
coolant type and the engine cooling system 262
Service products and filling capacitiesTechnical data

design. The renewal interval in the
Maintenance Booklet is only valid if the
coolant is renewed or added to with
Mercedes-Benz approved products.
Therefore, only use MB 326.0 antifreeze/
corrosion inhibitor or another Mercedes-Benz
approved product of the same specification.
Information on other products with the same
specifications that are approved by
Mercedes-Benz can be obtained at an
authorized Mercedes-Benz Center or on the
Internet at
http://bevo.mercedes-benz.com.
If the coolant level is too low, MB 325.0
antifreeze/corrosion inhibitor should be
added. Have the engine cooling system
checked for possible leaks.
Capacity Model Capacity
G 550
Approx. 11.1 US qt
(10.5 l)
G 63 AMG
Approx. 14.6 US qt
(13.8 l)
Low-temperature
circuit:
approximately
3.1 US qt (2.9 l)
i
Use MB 325.0 or MB 326.0 corrosion
inhibitor/antifreeze. Washer fluid
Important safety notes G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck. !
Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
X Add 1 part MB SummerFit to 100 parts
water.
At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB
WinterFit.
Adapt the mixing ratio to the outside
temperature.
X Down to 14 ‡ (Ò10 †): mix 1 part MB
WinterFit to 2 parts water.
X Down to Ò4 ‡ (Ò20 †): mix 1 part MB
WinterFit to 1 part water.
X Down to Ò20.2 ‡ (Ò29 †): mix 2 parts MB
WinterFit to 1 part water.
i Add washer fluid concentrate, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round.
Filling capacities Model Capacity
All models (except
for AMG vehicles)
7.4 US qt (7.0 l)
AMG vehicles
3.6 US qt (3.4 l)Service products and filling capacities
263Technical data Z

Vehicle data
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
- tires
- load
- condition of the suspension
- optional equipment
R the vehicle length specified includes the
front license plate adapter. Dimensions and weights
The missing values for the following model
were not available at the time of going to
print:
R G 63 AMG G 550 G 63 AMG
:
Upper-
edge
clearance 75 in -
78.9 in
(1905 mm - 2005 mm) ;
Lower-
edge
clearance 26.8 in -
30.7 in
(680 mm - 780 mm) =
Range of
movement 36.7 in
(931 mm) The missing values for the following model
were not available at the time of going to
print:
R G 63 AMG G 550
Vehicle length
183.5 in
(4662 mm) Vehicle width including
exterior mirrors
80.9 in
(2055 mm) Maximum vehicle height
76.8 in
(1951 mm) Wheelbase
112.2 in
(2850 mm) Minimum ground
clearance
8.1 in
(205 mm) Turning radius
44.6 ft
(13.60 m) Gross vehicle weigh
t
rating (GVWR) 7054.8 lb
(3200 kg) Gross axle weight rating
(GAWR), front 3196.7 lb
(1450 kg) Gross axle weight rating
(GAWR), rear 4188.8 lb
(1900 kg) i
The GVWR is the maximum permissible
gross vehicle weight. Gross Vehicle Weight
(GVW) is the vehicle weight including fuel,
service products, spare wheel, accessories
installed, load and, if applicable, trailer
drawbar load. The GVW must never exceed
the GVWR.
i The GAWR is the maximum permissible
axle weight. Vehicle data for off-road driving
Fording depth
! The depth of water must not exceed the
value specified in the table. Note that the 264
Vehicle data for off-road drivingTechnical data

possible fording depth is less in flowing
water.
:
Fording depth, 24 in (60 cm)
The table shows the fording depth when the
vehicle is loaded and ready to drive. Fording depth 24 in (60 cm)
For more information about off-road fording,
see the Digital Operator's Manual.
Approach/departure angle
G
WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is
a risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle. For vehicles with steel springs, loaded and
ready to drive means: a full tank, all fluids
refilled and the driver is in the vehicle. : : ;
;
G 550
34° 29°
G 63 AMG
36° 31°
For further information about approach/
departure angles, see the Digital Operator's
Manual.
Maximum gradient-climbing
capability
On good road surfaces the maximum
gradient-climbing capability of your vehicle is
100%, which corresponds to an approach/
departure angle of 45°. Note that the
climbing ability of your vehicle depends on
the terrain conditions.
For further information about the maximum
gradient climbing ability, see the Digital
Operator's Manual. Trailer tow hitch
Mounting dimensions
G
WARNING
Only have a trailer tow hitch retrofitted at a
qualified specialist workshop.
! If you have a trailer tow hitch retrofitted,
changes to the engine cooling system may
be necessary, depending on the vehicle
type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the
chassis frame.
For trailer tow hitches installed at the factory,
the overhang dimension is 990.5 mm. Trailer tow hitch
265Technical data Z

:
Anchorage points
; Overhang dimension
For trailer tow hitches installed at the factory,
the overhang dimension including protective
covering is 35.2 in (895 mm). Trailer loads
G 550
G 63 AMG
Permissible trailer load,
unbraked
1653 lbs
(750 kg) Permissible trailer load,
braked (at a minimum
gradient-climbing
capability of 12% from a
standstill)
7000 lbs
(3175 kg) Permissible rear axle
load when towing a
trailer (the drawbar
noseweight is not
included in the towing
weight)
4188 lbs
(1900 kg) Trailer drawbar noseweight
Number
of
people
150 lbs
(68 kg)
each Seat
occupa
ncy Trunk
load Maximu
m
drawbar
nosewei
ght
2 Front
seats 220 lbs
(100 kg) 562 lbs
(255 kg) 3 2 front
seats
1 rear seat 176 lbs
(80 kg) 562 lbs
(255 kg) 4 2 front
seats
2 Rear seats 132 lbs
(60 kg) 456 lbs
(207 kg) 5 2 front
seats
3 rear seats 0 lbs
(0 kg) 423 lbs
(192 kg) Ball position
Ball position of the ball coupling
When choosing a ball coupling, the
dimensions stated in the illustration must not
be exceeded.266
Trailer tow hitchTechnical data

267

268