fuel MERCEDES-BENZ G-CLASS 2011 Owner's Guide

The Mercedes-Benz Roadside Assistance
Representative either sends a qualified
Mercedes-Benz technician or organizes for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center. You may
be charged for services such as repair work
and/or towing. Further details are available
in your mbrace manual.
i If the indicator lamp in Roadside
Assistance button : flashes continuously
and no voice connection to the Response
Center has been established, then the
mbrace system has failed to initiate a
Roadside Assistance call (e.g. the
corresponding mobile phone network is not
available). The Call Failed message
appears in the multifunction display.XTo end a call: press the ~ button on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on COMAND.
i Sign and Drive services 18
: you are not
charged for services such as jump-starting,
providing a few gallons of fuel for a fuel tank
that has been run dry or changing a flat tire
with the vehicle's own spare wheel.
MB Info call button
XOpen the stowage space under the armrest
( Y page 193).XPress and hold MB Info call button : for
more than two seconds.
A call to the Response Center is initiated.
MB Info call button : indicator lamp
flashes while the connection is being
established. The Connecting call
message appears in the multifunction
display and the COMAND system is muted.
If a connection can be established, the Call
Connected message appears in the
multifunction display.
If a mobile phone network is available and
there is sufficient GPS reception, the mbrace
system transmits data to the Response
Center, for example:
R current location of the vehicle
R vehicle identification number
R vehicle model
R vehicle color
i The COMAND display shows that an
mbrace call is active. You can switch to the
navigation menu by pressing the NAVI
button on COMAND during the call. The
voice output is not available.
A voice connection between the Response
Center and the vehicle occupants is
established. You can obtain information on
how to operate your vehicle's systems, on the
location of the nearest authorized Mercedes-
Benz Center, and on further products and
services offered by Mercedes-Benz USA.
Further details on the mbrace system can be
found at http://www.mbusa.com 19
. Log in
under "Owners Online".
i If the indicator lamp in MB Info call
button : flashes continuously and no
voice connection to the Response Center
has been established, then the mbrace
system has failed to initiate an MB Info call
(e.g. because the corresponding mobile
phone network is not available). The Call
18
USA only.
19 USA only.Features205Loading, stowing and featuresZProCarManuals.com

Maintaining the time-dependent service
schedule:XNote down the service due date displayed
before disconnecting the battery.
or:
XSubtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
i The service interval display should not be
confused with the 4 engine oil level
display.
Hiding a service message
XPress the reset button on the left of the
instrument cluster ( Y page 26).
Displaying service messages
Use the buttons on the multifunction steering
wheel.
XSwitch on the ignition.XPress V or U to select the standard
display menu on the steering wheel
( Y page 160).XSelect & or * to select the service
interval display.
The ¯ or ± service symbol and the
service due date are displayed.
Please bear the following in mind
A qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center, will reset
the service interval display after the
necessary service work has been carried out.
You can obtain further information, e.g.
regarding service work, at an authorized
Mercedes-Benz Center or directly from
Mercedes-Benz.
! If the service interval indicator has been
inadvertently reset, this setting can be
corrected at an authorized Mercedes-Benz
Center.
Have the service work carried out as
described in the Service Booklet. There
may otherwise be increased wear, resulting
in damage to the vehicle or to the major
assemblies.
Fuel/water separator
If the fuel/water separator needs servicing,
the following message appears in the
multifunction display:
You will also hear a brief warning tone.
XConsult a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center,
as soon as possible.
! 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.
HEnvironmental note
Dispose of service products in an
environmentally responsible manner.
Care
Notes on care
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz.
220CareMaintenance and care
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Washing by hand
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
When washing the vehicle underbody, also
clean the inside of the wheels.
XDo not use hot water and do not wash the
vehicle in direct sunlight.XUse a soft sponge to clean.XUse a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.XThoroughly hose down the vehicle with a
gentle jet of water.XDo not point the water jet directly towards
the air inlets.XUse plenty of water and rinse out the
sponge frequently.XRinse the vehicle with clean water and dry
thoroughly with a chamois.XDo not let the cleaning agent dry on the
paintwork.
High-pressure cleaning equipment
GWarning
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.
! Maintain a minimum distance of
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the power washer nozzle around
when cleaning your vehicle.
Do not aim directly at any of the following:
R tires
R door gaps, roof gaps, joints, etc.
R electrical components
R battery
R connectors
Rlights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaning the wheels
! Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park the vehicle for an extended
period right after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after
cleaning. Braking heats the brake discs and
brake pads, thus drying them. The vehicle
can then be parked up.
Cleaning the paintwork
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by
inadequate care cannot always be completely
repaired. In such cases, visit a qualified
specialist workshop immediately, e.g. an
authorized Mercedes-Benz Center.
XRemove impurities immediately, where
possible, whilst avoiding rubbing too hard.XSoak insect remains with insect remover
and rinse off the treated areas afterwards.XSoak bird droppings with water and rinse
off the treated areas afterwards.XRemove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with a cloth soaked in petroleum ether or
lighter fluid.XUse tar remover to remove tar stains.XUse silicone remover to remove wax.222CareMaintenance and care
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After an accidentProblemPossible causes/consequences and M SolutionsFuel is leaking from the
vehicle.GRisk of explosion or fire
The fuel line or the fuel tank is faulty.
XImmediately turn the SmartKey to position 0 ( Y page 117) in the
ignition lock and remove it.XDo not restart the engine under any circumstances.XConsult a qualified specialist workshop.You are unable to
determine the extent of
the damage.XConsult a qualified specialist workshop.You cannot detect any
damage.XStart the engine as normal.The NECK-PRO head
restraints on the
driver's and front-
passenger seats have
been triggered.Your vehicle has been involved in a rear-end collision.XReset the NECK-PRO head restraints ( Y page 43).Where will I find...?
First-aid kit
i Check the expiration date on the first-aid
kit at least once a year. Replace the
contents if necessary, and replace missing
contents.
The first-aid kit is located in the stowage
compartment in the front-passenger door.
XRemove first-aid kit : from the stowage
space.
Vehicle tool kit
General notes
i Vehicles are not equipped with the tools
needed to change a wheel when they leave
the factory, e.g. jack or lug wrench. Some
tools for changing a wheel are specific to
the vehicle. To obtain tools approved for
your vehicle, visit a qualified specialist
workshop, e.g. an authorized Mercedes-
Benz Center.
Where will I find...?229Roadside AssistanceZProCarManuals.com

Jump-startingGWarning
Failure to follow these directions will cause damage to the electronic components, and can lead
to a battery explosion and severe injury or death.
Never lean over batteries while connecting or jump starting. You might get injured.
Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or
clothing. In case it does, immediately flush affected area with water, and seek medical help if
necessary.
A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or
sparks away from battery, avoid improper connection of jumper cables, smoking, etc.
Attempting to jump start a frozen battery can result in it exploding, causing personal injury.
Read all instructions before proceeding.
! Avoid repeated and lengthy starting attempts. Otherwise, non-combusted fuel may
damage the catalytic converter and create a risk of fire.
Do not use a rapid charging device to start the vehicle.
Make sure the jumper cables are not damaged.
Make sure the jumper cables are not touching any other metal objects when they are
connected to the battery.
If your vehicle's battery is discharged, the engine can be jump-started from another vehicle
or from a second battery using jumper cables.
Observe the following points:
XThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a second battery or a jump-starting device.XYou may only jump-start the vehicle when the engine and catalytic converter are cold.XDo not start the engine if the battery is frozen. Let the battery thaw first.XJump-starting may only be performed from batteries with a nominal voltage of 12 V.XOnly use jumper cables that have a sufficient cross-section and insulated terminal clamps.XMake sure that the jumper cables cannot come into contact with parts, such as the pulley
or the fan. These parts move when the engine is started and while it is running.XIf the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the empty battery a little.
i Jumper cables and further information about jump-starting can be obtained from any
authorized Mercedes-Benz Center.
XMake sure that the two vehicles do not touch.XApply the parking brake.XMove the selector lever to P.XSwitch off all electrical consumers (e.g. radio, blower, etc.).XOpen the hood ( Y page 214).238Jump-startingRoadside Assistance
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! Information about the use of snow chain
compatible AMG winter tires is applicable
for AMG tires. Use of snow chains is only
permissible with these tires.
! There is not enough space for snow
chains on some wheel sizes. Observe the
information under "Tires and wheels" in the
"Technical Data" section to avoid damage
to the vehicle or the wheels.
R Only use snow chains when driving on
roads completely covered by snow. Do not
exceed the maximum permissible speed of
30 mph (50 km/h). Remove the snow
chains as soon as possible when you are no
longer driving on snow-covered roads.
R Local regulations may restrict the use of
snow chains. Applicable regulations must
be observed if you wish to mount snow
chains.
If you intend to install snow chains, please
bear the following points in mind:
R you may not attach snow chains to all
wheel-tire combinations; see the
information under "Wheels and tires" in the
"Technical data" section.
R mount snow chains only in pairs and only
to the rear wheels. Observe the
manufacturer's installation instructions.
! If snow chains are mounted on the front
wheels, the snow chains could grind
against the bodywork or components of the
chassis. This could result in damage to the
vehicle or the tires.
i You may wish to deactivate
ESP ®
(Y page 57) when pulling away with
snow chains installed. This way you can
allow the wheels to spin in a controlled
manner, achieving an increased driving
force (cutting action).Tire pressure
Tire pressure specifications
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes etc.
Do not overload the tires by exceeding the
specified load limit as indicated on the Tire
and Loading Information placard on the
driver's door B-pillar. Overloading the tires
can overheat them, possibly causing a
blowout. Overloading the tires can also result
in handling or steering problems, or brake
failure.
You will find a table of recommended tire
pressures on the Tire and Loading
Information placard on the B-pillar on the
driver's side ( Y page 256). You will find a
table of tire pressures for various operating
conditions on the inside of your vehicle's fuel
filler flap.
To test tire pressure, use a suitable tire
pressure gauge. The outer appearance of a
tire does not permit any reliable conclusion
Tire pressure249Wheels and tiresZProCarManuals.com

about the tire pressure. On vehicles equipped
with the electronic tire pressure monitoring
system, the tire pressure can be checked
using the on-board computer.GWarning
Should the tire pressure drop repeatedly:
R check the tire for foreign bodies.
R check whether the wheel is losing air or the
valve is leaking.
R make sure that only a valve cap approved
by Mercedes-Benz is installed on the tire
valve.
Tire pressures that are too low have a
negative effect on vehicle safety, which could
lead you to cause an accident.
Only correct tire pressures when the tires are
cold. The tires are cold when the vehicle has
been parked for at least three hours or driven
for less than 1 mile (1.6 km). The tire
temperature changes depending on the
outside temperature, the vehicle speed and
the tire load. If the tire temperature changes
by 18 ‡ (10 †), the tire pressure changes by
approximately 10 kPa (0.1 bar/1.5 psi). Take
this into account when checking the pressure
of warm tires and only correct the tire
pressure if it is too low for the current
operating conditions. If you check the tire
pressure when the tires are warm, the
resulting value will be higher than if the tires
were cold. This is normal. Do not reduce the
tire pressure to the value specified for cold
tires. The tire pressure would otherwise be
too low.
Observe the recommended tire pressure
specifications for cold tires on the Tire and
Loading Information placard on the B-pillar on
the driver's side.
i The specifications given on the following
Tire and Loading Information placard are
examples. Tire pressure specifications are
vehicle-specific and may deviate from the
data shown here. The tire pressures
applicable to your vehicle can be found on
the Tire and Loading Information placard on
your vehicle.
You will find recommended tire pressure
specifications : for cold tires and for a fully
loaded vehicle's Tire and Loading Information
placard. The tire pressure information is
applicable to all tires mounted at the factory.
Important notes on tire pressures
GWarning
If the tire pressure drops repeatedly, check
the tires for punctures from foreign objects
and/or whether air is leaking from the valves
or from around the rim.
The tire temperature and pressure increase
when the vehicle is in motion. This is
dependent on the driving speed and the load.
If you wish to drive at high speeds of
100 mph (160 km/h) or higher when this is
allowed, use the tire pressure table on the
inside of the fuel filler flap to set the correct
tire pressures when the tires are cold. If the
tire pressure is not set correctly, this can lead
to an excessive build up of heat and a sudden
loss of pressure.
For more information, contact a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
i Ride comfort may be affected if the tire
pressure is adjusted to the recommended
value for speeds of over
100 mph (160 km/h).
250Tire pressureWheels and tires
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Make sure that the tire pressure for normal
speeds is adopted again.
Additional specifications of tire pressure
values for loads can also be found on the tire
pressure table on the inside of the fuel filler
flap.
Observe the following for the tire pressure on
the spare wheel:
R the tire and loading information table on
the B-pillar on the driver's side.
R the tire pressure sticker on the inside of the
fuel filler flap.
i The specifications shown in the examples
in the tire pressure tables are only
examples. Tire pressure specifications are
vehicle-specific and may deviate from the
data shown here. The tire pressure
specifications that are valid for your vehicle
can be found on your vehicle's tire pressure
table.
If no other data is stated, the tire pressures
specified on the fuel filler flap apply for all
tires approved for this vehicle.
Tire pressure table for all approved tires installed
at the factory (example)
If a tire size precedes a tire pressure, the tire
pressure information following is only valid
for that tire size. The load conditions "partially
laden" and "fully laden" are defined in the
table for different numbers of passengers and
amounts of luggage. The actual number of
seats may differ from this.
Tire pressure table with tire sizes (example)
Some tire pressure tables only show the rim
diameter instead of the complete tire size,
e.g. R16 . The rim diameter is part of the tire
size and can be found on the tire sidewall
( Y page 263).
Tire pressure too low or too high
Underinflation
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Underinflated tires may:
R wear quickly and unevenly
R have an adverse effect on fuel consumption
R overheat leading to tire defects
R have an adverse effect on handling
characteristics
Tire pressure251Wheels and tiresZProCarManuals.com

OverinflationGWarning
Follow recommended tire inflation pressures.
Do not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes etc.
Overinflated tires may:
R have an adverse effect on handling
characteristics
R wear quickly and unevenly
R be more susceptible to damage
R have an adverse effect on ride comfort
R increase the braking distance
Maximum tire pressure
GWarning
Never exceed the maximum tire inflation
pressure. Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes etc.
:Maximum permissible tire pressure
(example)
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Always observe the recommended tire
pressure for your vehicle when adjusting the
tire pressure ( Y page 249).
Checking the tire pressures
Important safety notes
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes etc.
Do not overload the tires by exceeding the
specified load limit as indicated on the Tire
and Loading Information placard on the
driver's door B-pillar. Overloading the tires
can overheat them, possibly causing a
blowout. Overloading the tires can also result
in handling or steering problems, or brake
failure.
252Tire pressureWheels and tires
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Check the tire pressures at least once a
month.
Only check and correct tire pressures when
the tires are cold ( Y page 249).
Checking the tire pressure manually
To determine and set the correct tire
pressure, proceed as follows:
XRemove the valve cap of the tire that is to
be checked.XPress the tire pressure gauge securely onto
the valve.XRead the tire pressure and compare it with
the recommended value on the tire and
loading information table on the B-pillar on
the driver's side of your vehicle.XIf necessary, increase the tire pressure to
the recommended value ( Y page 249).XIf the tire pressure is too high, release air
by pressing down the metal pin in the valve
using the tip of a pen, for example. Then,
check the tire pressure again using the tire
pressure gauge.XScrew the valve cap onto the valve.XRepeat these steps for the other tires.
Tire pressure monitor
Important safety notes
If a tire pressure monitor system is installed,
the vehicle's wheels have sensors that
monitor the tire pressures in all four tires. The
tire pressure monitor warns you when the
pressure drops in one or more of the tires. The
tire pressure monitor only functions if the
correct wheel electronics units are installed
on all wheels.
The tire pressure monitor has a yellow
warning lamp in the instrument cluster for
indicating pressure loss/malfunctions (USA)
or pressure loss (Canada). Whether the
warning lamp flashes or lights up indicates
whether a tire pressure is too low or the tire
pressure monitoring system is
malfunctioning:
R If the warning lamp is lit continuously, the
tire pressure on one or more tires is
significantly too low. The tire pressure
monitor is not malfunctioning.
R USA only: if the warning lamp flashes for
60 seconds and then remains lit constantly,
the tire pressure monitor is malfunctioning.GWarning!
The TPMS does not indicate a warning for
wrongly selected inflation pressures. Always
adjust tire inflation pressure according to the
Tire and Loading Information placard or the
supplemental tire inflation pressure
information on the inside of the fuel filler flap.
The TPMS is not able to issue a warning due
to a sudden dramatic loss of pressure (e.g. tire
blowout caused by a foreign object). In this
case bring the vehicle to a halt by carefully
applying the brakes and avoiding abrupt
steering maneuvers.
GWarning
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the Tire and Loading
Information placard on the driver’s door B-
pillar or the tire inflation pressure label on the
inside of the fuel filler flap. If your vehicle has
tires of a different size than the size indicated
on the Tire and Loading Information placard
or the tire inflation pressure label, you should
determine the proper tire inflation pressure
for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire
Tire pressure253Wheels and tiresZProCarManuals.com