2012 MERCEDES-BENZ G-Class fuel type

Unladen weight (definition) ............
263
Wear indicator (definition) .............265
Wheel rim (definition)
....................263
see Flat tire
Top Tether ............................................ 51
Tow-away alarm .................................. 58
Towing Important safety guidelines ...........235
In the event of malfunctions ..........237
Towing eye
Front .............................................. 235
Rear ............................................... 235
Trailer loads and drawbar
noseweights ...................................... 256
Transfer case Display message ............................ 178
Shift ranges ................................... 145
Transmission position display .........120
Transmission positions ....................120
Transporting the vehicle .................. 236
Traveling uphill Brow of hill ..................................... 139
Trip computer (on-board
computer) .......................................... 162
Trip odometer Calling up ....................................... 156
Turn signal
Display message ............................ 168
Turn signals ......................................... 91
TWR (Tongue Weight Rating)
(definition) ......................................... 265
Type identification plate see Vehicle identification plate U
Ultrasonic backing up aid Function/notes

............................. 142
Malfunction .................................... 144
Range of the sensors ..................... 142
Warning display ............................. 143
Unlocking
Emergency unlocking .......................66
From inside the vehicle (central
unlocking button) ............................. 65 V
Vanity mirror Sun visor ........................................ 194
Vehicle
Data acquisition ............................... 22
Emergency unlocking .......................66
Equipment

....................................... 17
Individual settings (on-board
computer) ...................................... 158
Loading .......................................... 252
Lowering ........................................ 229
Maintenance .................................... 18
Parking for a long period ................ 128
Raising ........................................... 227
Reporting problems .........................21
Towing away .................................. 235
Tow-starting ................................... 235
Transporting .................................. 236
Vehicle dimensions
Technical data ............................... 277
Vehicle identification number
see VIN
Vehicle identification plate ..............271
Vehicle tool kit .................................. 224
Vehicle weights Technical data ............................... 277
Ventilation
Setting the air distribution .............107
Setting the airflow ......................... 108
Video (DVD) ........................................ 157
VIN ...................................................... 271 W
Warning and indicator lamps ABS

................................................ 181
Brakes ........................................... 180
Check Engine ................................. 184
ESP ®
.............................................. 182
ESP ®
OFF ....................................... 182
Fuel tank ........................................ 184
Overview .......................................... 26
PASSENGER AIRBAG OFF ................ 37
Reserve fuel ................................... 184
Seat belt ........................................ 178 Index
15

1-800-387-0100. This will assist us in
contacting
you
in a timely manner should the
need arise.
If you sell your Mercedes, please leave the
entire literature in the vehicle so that it is
available to the next owner.
If you bought this vehicle used, be sure to
send in the "Notice of Purchase of Used
Truck" found in the Service and Warranty
Information Booklet, or call the Mercedes-
Benz Customer Assistance Center (USA) at
1-800-FOR-MERCedes(1-800-367-6372) or
Customer Service (Canada) at
1-800-387-0100. Vehicle operation outside the USA
and Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R service facilities

or replacement parts may
not be readily available.
R unleaded fuel for vehicles with a catalytic
converter may not be available. Leaded fuel
may cause damage to the catalytic
converter.
R the fuel may have a considerably lower
octane rating. Unsuitable fuel can cause
engine damage.
Some Mercedes-Benz models are available
for delivery in Europe through our European
Delivery Program. For details, consult an
authorized Mercedes-Benz Center or write to
one of the following addresses.
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9 Sport Utility Vehicle
G
WARNING
This Sport Utility Vehicle is designed for both
on-road and

off-road use. It can go places and
perform tasks for which conventional 2-wheel
drive passenger cars are not intended. This
vehicle will handle and maneuver differently
from conventional passenger cars in driving
conditions which may occur on streets,
highways and off-road use.
This vehicle has a higher ground clearance
and a higher center of gravity than many
passenger cars. As with other vehicles of this
type, if you make sharp turns at excessive
speeds or abrupt maneuvers, the vehicle may
roll over or may go out of control and crash.
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
Failure to operate this vehicle safely may
result in an accident, rollover of the vehicle,
and severe or fatal injury.
Before you start to drive this vehicle, read the
Operator's Manual. Take time to become
familiar with the driving characteristics of this
vehicle. Be sure you are familiar with all
vehicle controls. Learn how your vehicle
handles on different road surfaces. Do not
attempt sharp turns at excessive speeds or
abrupt maneuvers or other unsafe driving
actions that can cause loss of vehicle control.
When driving off-road or working the vehicle
hard, do not overload it. And, always wear
your seat belts at all times. In a rollover crash,
an unbelted person is significantly more likely
to die than a person wearing a seat belt. Operating safety
Safety notes
G
WARNING
Work improperly carried out on electronic
components and associated software could
cause them

to cease functioning. Because the
vehicle's electronic components are
interconnected, any modifications made may Introduction
19 Z

Problem Possible causes/consequences and
M SolutionsThe engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it. The coolant
temperature gauge
shows a value above
248 ‡
(120 †).
Additionally, a display
message
may appear in
the multifunction
display and a warning
tone may sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 213). Observe the warning
notes as you do so and add coolant if necessary. Automatic transmission
Important safety notes
G
WARNING
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than

idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal. G
WARNING
On slippery road surfaces, never downshift in
order to obtain braking action. This could
result in

drive wheel slip and reduced vehicle
control. Your vehicle's ABS will not prevent
this type of loss of control. G
WARNING
Keep in mind that turning off the engine alone
only will

shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
i Bear in mind that the power transmission
between the engine and the transmission
is interrupted when the engine is switched
off. Therefore, to prevent the vehicle from
rolling away, shift the automatic
transmission to position P and apply the
parking brake when the engine is switched
off and the vehicle is stationary. Automatic transmission
119
Driving and parking Z

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

have a code with two symbols. Retreaded
tires have a code with four symbols.
Further information about retreaded tires
(Y page 242).
Tire
size: identifier =
describes the tire size.
Tire type code: tire type code ? can be
used by the manufacturer as a code to
describe specific characteristics of the tire.
Date of manufacture: date of manufacture
A provides information about the age of a
tire. The first and second positions represent
the week of manufacture, starting with "01"
for the first calendar week. Positions three
and four represent the year of manufacture.
For example, a tire that is marked with
"3208", was manufactured in week 32 in
2008. Tire characteristics
i
Tire data is vehicle-specific and may
deviate from the data in the example.
This information describes the type of tire
cord and the number of layers in
sidewall : and under tire tread ;.Definition of terms for tires and
loading
Tire structure and characteristics
Describes the

number of layers or the number
of rubber-coated belts in the tread and the
sidewall of the tire. These are made of steel,
nylon, polyester and other materials. Bar
Metric unit for tire pressure.
14.5038 pounds per square inch (psi) and
100 kilopascals (kPa) are the equivalent of
1 bar. DOT (Department of Transportation)
DOT marked tires fulfill the requirements of
the United States Department of
Transportation. Average weight of the vehicle
occupants
The number of occupants for which the
vehicle is

designed multiplied by 68 kilograms
(150 lb). Uniform Tire Quality Grading
Standards
A uniform standard to grade the quality of
tires with

regards to tread quality, tire traction
and temperature characteristics. The quality
grading assessment is made by the
manufacturer following specifications from
the U.S. government. The quality grade of a
tire is imprinted on the sidewall of the tire. Recommended tire pressure
The recommended tire pressure for your
vehicle under normal driving conditions. You
will find

the recommendation on the Tire and
Loading Information placard on the B-pillar on
the driver's side of your vehicle. The
recommended tire pressure provides the best
balance between handling characteristics,
ride comfort and wear. Additional information
on particular driving conditions is located on
the tire pressure table on the inside of the fuel
filler flap. 262
Definition of terms for tires and loading
Wheels and tires

benefits if the correct direction of rotation is
maintained.
An
arrow
on the sidewall of the tire indicates
its correct direction of rotation.
You may mount the spare wheel against the
direction of rotation. Adhere to the time
restriction on use as well as the speed
limitation specified on the spare wheel. Storing wheels
Store tires that are not being used in a cool,
dry and preferably dark place. Protect the
tires from oil, grease, gasoline and diesel. Cleaning the wheels
G
WARNING
Do not use power washers with circular jet
nozzles (concentrated-power jets) to clean
your vehicle,

especially for cleaning tires. You
could otherwise damage the tires and cause
an accident. Wheel and tire combinations
Please bear the following in mind
G
WARNING
Replace rims or tires with the same
designation, manufacturer

and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly sized rims and tires are
mounted, the wheel brakes or suspension
components can be damaged. Also, the
operating clearance of the wheels and the
tires may no longer be correct. G
WARNING
Worn, old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if
the tires have sustained damage, replace
them. When replacing rims, only use genuine
Mercedes-Benz wheel bolts specified for the
particular
rim

type. Failure to do so can result
in the bolts loosening and possibly an
accident.
Retreaded tires are not tested or
recommended by Mercedes-Benz, since
previous damage cannot always be
recognized on retreads. The operating safety
of the vehicle cannot be assured when such
tires are used. G
WARNING
If you notice sudden significant vibrations or
unusual handling performance or if you
suspect that damage has occurred to the
vehicle, you should activate the hazard
warning lamps, gently reduce speed and
carefully head for an area that is located at a
safe distance from the road.
Check the tires and the underside of the
vehicle for damage. If the vehicle seems
unsafe, have the vehicle towed away to the
nearest Mercedes-Benz Center or tire dealer
to be repaired. G
WARNING
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
might lose control of the vehicle. Continued
driving with

a flat tire or driving at high speed
with a flat tire will cause excessive heat build-
up and possibly a fire.
! For safety reasons, Mercedes-Benz
recommends that you only use tires,
wheels and accessories which have been
approved by Mercedes-Benz specifically
for your vehicle. These tires have been
specially adapted for use with the driving
safety systems, such as ABS or ESP ®
.
Only use tires, wheels or accessories
tested and approved by Mercedes-Benz.
Certain characteristics, e.g. handling,
vehicle noise emissions or fuel
consumption, may otherwise be adversely
affected. In addition, when driving with a 266
Wheel and tire combinationsWheels and tires

load, tire dimension variations could cause
the tires to come into contact with the
bodywork
and
axle components. This could
result in damage to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those
tested and approved.
Further information about wheels, tires and
approved combinations can be obtained
from any authorized Mercedes-Benz
Center.
i The Tire and Load Information placard
with the recommended tire pressures is
attached to the B-pillar on the driver's side.
Further information about driving at high
speeds or driving with vehicle loads that are
lighter than the maximum vehicle load can
be found in the tire pressure table on the
inside of the fuel filler flap. Check tire
pressures regularly, and only when the tires
are cold. Comply with the maintenance
recommendations of the tire manufacturer
in the vehicle document wallet.
For further information on the recommended
tire inflation pressure and on tire pressures
for specific driving conditions, see
(Y page 245).
i Notes on vehicle tires:
Always:
R mount tires of the same size on a given
axle (left/right)
R mount tires of the same type on your
vehicle at a given time (summer tires,
winter tires, all-weather tires, all-terrain
tires)
i The following pages contain information
on approved wheels and tire sizes for
equipping your vehicle with winter tires.
Winter tires are not available ex factory as
standard equipment or optional extras.
If you wish to mount approved winter tires
on your vehicle, wheels of appropriate size
may also be required as the sizes of the approved winter tires may differ from those
of the original tires. This is dependent on
the model and the equipment installed at
the factory.
The wheels and tires as well as further
information can be obtained at a qualified
specialist workshop.
The tire
and wheel combinations listed in the
tables below apply to the following models: V1 G 550
V2 G 55 AMGWheel and tire combinations
267
Wheels and tires Z