2015 MERCEDES-BENZ G-CLASS SUV coolant level

COMAND and Internetsee Online and Internet functions
COMAND control panel .....................178
COMAND controller ........................... 179
Combination switch ............................ 92
Compass
Display messages .......................... 148
Connecting a USB device
see also Digital Operator's Man-
ual ................................................. .172
Consumption statistics (on-board
computer) .......................................... 147
Convenience opening feature .......... 100
Coolant (engine)
Checking the level ......................... 208
Display message .................... 148, 155
Filling capacity ............................... 265
Notes ............................................. 264
Temperature (on-board com-
puter) ............................................. 147
Temperature gauge ........................ 146
Warning lamp ................................. 168
Cooling
see Climate control
Cornering light function
Display message ............................ 148
Function/notes ................................ 92
Courtesy lights ................................... .92
Cruise control
Cruise control leve r .......................113
Display message ............................ 148
Driving system ............................... 112
Function/notes ............................ .112
Resuming the stored speed ........... 114
Selecting ........................................ 114
Storing and maintaining current
speed ............................................. 114
Cup holder
Center console .............................. 197
Important safety notes .................. 197
D
Datasee Technical data
Daytime running lamps
Display message ............................ 148 Switching on/off (on-board com-
puter) ............................................. 147
Declarations of conformity ................. 28
DEF
Display message ............................ 148
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 147
Interior lighting .............................. 147
Differential locks
Disengaging ................................... 136
Engaging ........................................ 135
Front axle ...................................... 136
General notes ................................ 134
Rear axle ........................................ 136
Terrain .......................................... .134
Transfer case ................................. 136
Differential locks (display mes-
sage) ................................................... 148
Digital Operator's Manual
Contents .......................................... 24
Installation ....................................... 22
Introduction ..................................... 22
Keyword search ............................... 24
Operating notes ............................... 23
Visual search ................................... 23
Digital speedometer ......................... 147
Display (cleaning instructions) ........212
Display messages
Calling up (on-board com-
puter) ............................................. 148
Driving systems ..................... 148, 156
Engine ................................... 148, 155
General notes ................................ 148
Hiding (on-board computer) ........... 148
Lights ............................................. 148
Safety systems ..................... .148, 149
Service interval displa y.................. 209
SmartKey ....................................... 148
Tires ...................................... 148, 158
Vehicle .................................. 148, 160
Distance display (on-board com- puter) .................................................. 147
Distance recorder ............................. 147
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 169
Index7

Engine
Display messagesPossible causes/consequences andMSolutions
?
Coolant Too Hot
Stop Vehicle
Switch Engine Off
The coolant is too hot.
A warning tone also sounds.
GWARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury. X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Ypage 110).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †).
The poly-V-belt may have torn.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Check the poly-V-belt.
If the poly-V-belt is torn:
!Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Wait until the display message disappears before restarting the
engine. Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X Visit a qualified specialist workshop.
Display messages155
On-board computer and displays
Z

Engine
ProblemPossible causes/consequences andMSolutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.The coolant temperature has exceeded 248 ‡ (120 †). The air-
flow to the engine radiator may be blocked or the coolant level may
be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury. X Observe the additional display messages in the multifunction display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Ypage 110).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes ( Ypage 208).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-start driving.
168Warning and indicator lamps in the instrument cluster
On-board computer and displays

Additional service products
Checking coolant level
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
The engine cooling system is pressurized, par-ticularly when the engine is warm. When
opening the cap, you could be scalded by hotcoolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
X Park the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down.
X Turn the SmartKey to position 2
( Y page 103) in the ignition lock.
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †). X
Slow ly turn cap :half a turn counter-
clockwise and allow excess pressure to
escape.
X Turn cap :further counter-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough coolant in coolant expansion tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar =in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.
X If necessary, add coolant that has been tes-
ted and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see( Y page 264).
Adding washer fluid to the windshield
washer system/headlamp cleaning
system
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
208Engine compartment
Maintenance and care

Vehicle identification number (VIN)
:VIN (on the lower edge of the windshield)
Engine number
Example: G 550 :
Emissions control information plate,
including the certification of both federal
and Californian emissions standards
;Engine number (stamped into the crank-
case)
Service products and filling capaci-
ties
Important safety notes
GWARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labelsof the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out of the reach of children.
HEnvironmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following:
R Fuels
R Lubricants (e.g. engine oil, transmission oil)
R Coolant
R Brake fluid
R Windshield washer fluid
R Climate control system refrigerant
Components and service products must be
matched. Only use products recommended
by Mercedes-Benz. Damage which is caused
by the use of products which have not been
recommended is not covered by the
Mercedes-Benz warranty or goodwill ges-
tures. They are listed in this Mercedes-Benz
Operator's Manual in the appropriate section.
Information on tested and approved products can be obtained at an authorized Mercedes-
Benz Center or on the Internet at http://
bevo.mercedes-benz.com .
You can recognize service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi- cate a level of quality or a specification in
accordance with an MB Sheet number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
Other identifications, for example:
R 0 W-30
R 5 W-30
R 5 W-40
Service products and filling capacities259
Technical data
Z

iThe coolant is checked with every main-
tenance interval at a qualified specialist workshop.
The engine cooling system is filled with cool-
ant at the factory which contains antifreeze/
corrosion inhibitor that ensures protection
down to approximately -35 ‡ (-37 †).
Your vehicle has a range of aluminum com-
ponents. 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 forrenewal.
The renewal interval is determined by the
coolant type and the engine cooling system
design. The renewal interval in the Mainte-
nance 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 author- ized Mercedes-Benz Center or on the Internet
at http://bevo.mercedes-benz.com .
If the coolant level is too low, MB 325.0 anti-
freeze/corrosion inhibitor should be added.
Have the engine cooling system checked for
possible leaks.Capacity
ModelCapacity
G 550Approx. 11.1 US qt
(10.5 l)
G 63 AMGApprox. 14.6 US qt
(13.8 l)
Low-temperature
circuit: approx-
imately 3.1 US qt
(2.9 l)
iUse MB 325.0 or MB 326.0 antifreeze/
corrosion inhibitor.
Windshield/headlamp cleaning sys- tem
Important safety notes
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate 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 theheadlamps.
!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 becomeblocked.
Service products and filling capacities265
Technical data
Z