2012 MERCEDES-BENZ G-Class tire pressure

1, 2, 3 ...
115 V socket ...................................... 197
12 V socket
........................................ 196
4ETS (Electronic Traction System) Function/notes ................................ 56
4MATIC (permanent four-wheel
drive) .................................................. 141A
ABS (Anti-lock Braking System) Display message ............................ 166
Function/notes

................................ 54
Warning lamp ................................. 181
Active service system
see Service interval display
Additives
Engine oil ....................................... 275
Adjusting the seat ............................... 76
Air bags Front air bag (driver, front
passenger) ....................................... 35
Important safety notes .................... 34
PASSENGER AIR BAG
OFF- indicator lamp .......................... 37
Safety guidelines ............................. 33
Window curtain air bag ....................37
Air-conditioning system
see Climate control
Air pressure
see Tire pressure
Air vents ............................................. 111
Important safety notes .................. 110
Rear ............................................... 111
Setting ........................................... 110
Setting the center air vents ...........111
Setting the side air vents ............... 111
Alarm system
see ATA
Anti-lock Braking System
see ABS
Anti-Theft Alarm system
see ATA
Approach/departure angle ..............138
Ashtray ............................................... 195ATA (Anti-Theft Alarm system)
Activating/deactivating

...................57
Function ........................................... 57
Switching off the alarm .................... 57
Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 168
Automatic car wash .......................... 217
Automatic transmission Driving tips .................................... 121
Emergency running mode ..............124
Important safety notes .................. 119
Kickdown ....................................... 121
Malfunction .................................... 124
Pulling away ................................... 116
Releasing the parking lock
manually ........................................ 124
Selector lever ................................ 120
Automatic transmission
emergency mode ............................... 124 B
Backup lamp Display message
............................ 170
BAS (Brake Assist System)

.................54
Battery Charging ........................................ 231
Checking (SmartKey) ....................... 62
Display message ............................ 172
Important safety guidelines
(SmartKey) ....................................... 62
Important safety notes .................. 230
Jump-starting ................................. 233
Replacing (SmartKey) ...................... 62
Belt
see Seat belts
Brake fluid
Display message ............................ 166
Notes ............................................. 275
Brake fluid level ................................ 215
Brake lamps (display message) .......168
Brakes ABS .................................................. 54
BAS .................................................. 54
Brake fluid (notes) .........................275
Display messages ..........................1664
Index

Telephone compartment
..................189
Temperature Coolant .......................................... 152
Displaying the outside
temperature ................................... 156
Outside temperature ...................... 153
Setting (climate control)
................107
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........57
Immobilizer ...................................... 57
Theft-deterrent systems
Tow-away alarm ............................... 58
Tilt/sliding sunroof
see Sliding sunroof
Tire pressure
Calling up (on-board computer) ..... 249
Checking ........................................ 248
Checking manually ........................249
Display message ............................ 175
Maximum ....................................... 248
Notes ............................................. 246
Tire pressure monitoring system
Function/notes ............................. 249
Restarting ...................................... 251
Warning lamp ................................. 185
Tires
Aspect ratio (definition) ................. 264
Average weight of the vehicle
occupants (definition) .................... 262
Bar (definition) ............................... 262
Characteristics .............................. 262
Checking ........................................ 243
Definition of terms ......................... 262
Direction of rotation ......................265
Distribution of the vehicle
occupants (definition) .................... 265
DOT, Tire Identification Number
(TIN) ............................................... 261
DOT (Department of
Transportation) (definition) ............ 262
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 263
GTW (Gross Trailer Weight)
(definition) ..................................... 263
GVW (Gross Vehicle Weight)
(definition) ..................................... 263
GVWR (Gross Vehicle Weight
Rating) (definition) .........................263Increased vehicle weight due to
optional equipment (definition)

......263
Kilopascal (kPa) (definition) ........... 263
Labeling (overview) ........................ 258
Load bearing index (definition) ...... 264
Load index ..................................... 261
Load index (definition) ...................263
Maximum loaded vehicle weight
(definition) ..................................... 263
Maximum load on a tire
(definition) ..................................... 264
Maximum permissible tire
pressure (definition) ....................... 264
Maximum tire load ......................... 256
Maximum tire load (definition) .......264
Optional equipment weight
(definition) ..................................... 264
PSI (pounds per square inch)
(definition) ..................................... 264
Replacing ....................................... 265
Service life ..................................... 244
Sidewall (definition) .......................264
Speed rating (definition) ................ 263
Storing ........................................... 266
Structure and characteristics
(definition) ..................................... 262
Technical data ............................... 266
Temperature .................................. 258
TIN (Tire Identification Number)
(definition) ..................................... 264
Tire bead (definition) ......................264
Tire pressure (definition) ................ 264
Tire pressures
(recommended) ..................... 245, 262
Tire size designation, load-bearing
capacity, speed rating .................... 259
Tire tread ....................................... 243
Tire tread (definition) .....................264
Total load limit (definition) ............. 265
Traction ......................................... 257
Traction (definition) ....................... 264
Tread wear ..................................... 257
TWR (permissible trailer drawbar
noseweight) (definition) .................265
Uniform Tire Quality Grading
Standards ...................................... 257
Uniform Tire Quality Grading
Standards (definition) .................... 26214
Index

SRS ................................................
183
Tire pressure monitor .................... 185
Warranty ............................................ 270
Washer fluid Display message ............................ 177
Wheel bolt tightening torque
...........229
Wheels Changing a wheel .......................... 227
Checking ........................................ 243
Cleaning ......................................... 218
Important safety notes .................. 242
Interchanging/changing ................265
Mounting a wheel .......................... 229
Removing a wheel ..........................229
Storing ........................................... 266
Technical data ............................... 266
Tightening torque ........................... 229
Window curtain air bag
Operation ......................................... 37
Windows
see Side windows
Windows (cleaning instructions) .....219
Windshield heating ...........................108
Windshield washer system .............. 214
Windshield wipers Important safety notes .................... 99
Replacing the wiper blades ............ 100
Switching on/off ........................... 100
Troubleshooting ............................. 101
Winter
Driving in winter ............................. 134
Winter operation ............................ 244
Winter tires
M+S tires ....................................... 244
Wiper blades
Cleaning ......................................... 21916
Index

Warning and indicator lamps
Function Page
:
Low-beam headlamps 89
;
ESP
®
OFF 182
=
ESP
® 182
?
Turn signal 91
A
ABS 181
B
Seat belt 178
C
SRS 183
D
Check Engine (Canada
only)
184 Function Page
E
Check Engine (USA only) 184
F
Reserve fuel 184
G
High-beam headlamps 91
H
Tire pressure monitor 185
I
Brakes (USA only) 180
J
Brakes (Canada only) 18026
Instrument clusterAt a glance

R
braking distance is increased
R vehicle stability in standard driving
maneuvers is increased
Make sure
the differential locks are switched
on at all times except when driving off-road
for example. Switch on the differential locks
immediately when returning from off-road
driving.
i Please note that the driving safety
systems described only work as effectively
as possible if there is adequate contact
between the tires and the road surface. Pay
particular attention to the information
regarding tires, recommended minimum
tire tread depths, etc. in the "Wheels and
tires" section (Y page 242).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible. ABS (Anti-lock Braking System)
Important safety notes G
WARNING
Observe "Important safety notes"
(
Y page 53).
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS operates above a speed of about
5 mph(8 km/h) regardless of road-surface
conditions, provided

the differential locks are
not active. ABS works on slippery surfaces,
even when you only brake gently. G
WARNING
If
the ABS malfunctions, other driving systems
such as

the BAS or the ESP ®
are also switched
off. Observe indicator and warning lamps that may come on as well as messages in the
multifunction display that may appear.
If
the

ABS malfunctions, the wheels may lock
during hard braking, reducing the steering
capability and extending the braking distance.
The ! warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
Braking If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
X
If
ABS intervenes:
continue
to depress the
brake pedal with force until the braking
situation is over.
X To make a full brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an
indication of hazardous road conditions and
functions as a reminder to take extra care
while driving. G
WARNING
Do
not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS
and significantly reduces braking
effectiveness.
Off-road ABS If the LOW shift range (
Y page 145) is
selected on
the transfer case, an ABS system
specifically suited to off-road terrain is
activated.
At speeds below 37 mph(60 km/h), the front
wheels lock periodically when braking. The
digging-in effect achieved in the process
reduces the stopping distance on off-road
terrain. This limits steering capability. BAS (Brake Assist System)
i Observe the "Important safety notes"
section ( Y
page 53).54
Driving safety systems
Safety

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

X
Connect a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist
workshop.
If you
leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as
a result of lack of use.
X Visit a qualified specialist workshop and
seek advice. Driving tips
General driving tips
Important safety notes G
WARNING
Always remember that you must concentrate
primarily on driving the vehicle. The driver's
concentration must always be directed
primarily at road traffic. For your own safety
and that of others, we recommend that you
stop the vehicle at a safe place and in
accordance with

the traffic conditions before
making or accepting a phone call.
Comply with all legal requirements if you use
the telephone while driving. Use the hands-
free system and only use the telephone when
road, weather and traffic conditions permit. In
some jurisdictions, it is forbidden for drivers
to use mobile phones while driving.
Only operate COMAND (Cockpit Management
and Data System) in compliance with all legal
requirements and when the road, weather and
traffic conditions permit. You may otherwise
not be able to observe the traffic conditions,
endangering yourself and others.
Remember that your vehicle covers a distance
of 44 feet (approximately 14 m) a second
when it is traveling at only 30 mph
(approximately 50 km/h). Drive sensibly – save fuel Observe the following tips to save fuel:
X
The tires should always be inflated to the
recommended tire pressure.
X Remove unnecessary loads.
X Remove roof carriers when they are not
needed.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work performed at
the service intervals specified in the
Maintenance Booklet or indicated by the
service interval indicator.
Fuel consumption also increases when
driving in

cold weather, in stop-and-go traffic
and in mountainous terrain.
Drinking and driving G
WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and
judgment.
The possibility of a serious or even fatal
accident are

greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Pedals G
WARNING
Make sure absolutely no objects are
obstructing the pedals' range of movement.
Keep the driver's footwell clear of all
obstacles. If there are any floormats or
carpets in the footwell, make sure that the
pedals still have sufficient clearance.
During sudden driving or braking maneuvers,
the objects could get caught between the
pedals. You could then no longer brake or Driving tips
129
Driving and parking
Z

Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If your brake system is subject only to
moderate loads, you should test the
functionality of your brakes at regular
intervals
by
pressing firmly on the brake pedal
at high speeds. This improves the grip of the
brake pads.
You can find a description of Brake Assist
(BAS) on ( Y page 54).
High-performance brake system for
AMG vehicles The high-performance brake system is
installed only on the G 55 AMG.
G
WARNING
New vehicle brake pads and discs, and
replacement brake pads and discs may take
several hundred miles of driving until they
provide optimum

braking efficiency. Until that
time, you may need to use increased brake
pedal pressure while braking. Please be aware
of this and adjust your driving and braking
accordingly during this break-in period.
Excessive high-demand braking will cause
correspondingly high brake wear. Please be
attentive to the brake warning lamp in the
instrument cluster and brake condition
messages in the multifunction display.
Especially for high performance driving, it is
important to maintain and have the brake
system checked regularly.
The high-performance brake system is
designed for heavy loads. This may lead to
noise when braking. This will depend on:
R speed
R braking force
R environmental conditions, such as
temperature and humidity
The wear of individual components of the
brake system, such as the brake pads/linings
or brake discs, depends on the individual
driving style and operating conditions. For this reason, it is impossible to state a
mileage that will be valid under all
circumstances. An aggressive driving style
will
lead

to high wear. You can obtain further
information about this from your authorized
Mercedes-Benz Center.
Parking brake G
WARNING
While performing this procedure please
assure that the vehicle is stopped before
applying the parking brake. Otherwise the
rear wheels could lock up. You could lose
control of the vehicle and cause an accident.
In addition, the vehicle's brake lights do not
light up when the parking brake is engaged.
Make sure not to endanger any other road
users when you engage the parking brake.
If you drive on wet roads or dirt-covered
surfaces, road

salt and/or dirt could get into
the parking brake.
In order to prevent corrosion and a reduction
in the braking power of the parking brake,
observe the following:
R pull the parking brake upwards with the
release button depressed from time to time
before beginning the journey
(Y page 128).
R Drive a distance of approximately 110 yds
(100 m) with a maximum speed of 12 mph
(20 km/h). Driving on wet roads
Hydroplaning If water has accumulated to a certain depth
on the road surface, there is a danger of
hydroplaning occurring, even if:
R
you drive at low speeds.
R the tires have adequate tread depth.132
Driving tips
Driving and parking