2014 MERCEDES-BENZ G-CLASS SUV coolant level

Cargo compartment enlargement
Important safety note s.................. 185
Cargo tie down rings .........................188
CD see also Digital Operator's Manual 170
CD player/CD changer (on-board
computer) .......................................... 144
Center console Overview .......................................... 34
Upper section .................................. 34
Central locking
Automatic locking (on-board
computer) ...................................... 144
Locking/unlocking (SmartKey) ........66
Changing bulbs
Side marker lamps ...........................86
Changing gears .................................. 101
Checklist After driving off-roa d...................... 108
Before driving off-road ...................108
Child-proof locks
Important safety notes ....................58
Rear doors ....................................... 58
Children
In the vehicle ................................... 53
Restraint systems ............................ 53
Child seat
Automatic recognition .....................44
Automatic recognition/air bag
deactivation, self-test ......................46
LATCH-type (ISOFIX) child seat
anchors ............................................ 56
Special seat belt retractor ...............55
Top Tether ....................................... 57
Troubleshooting ............................... 47
Chrome parts (cleaning
instructions) ...................................... 210
Cigarette lighter ................................ 189
Cleaning Trailer tow hitch ............................. 206
Clear button ....................................... 178
Climate control Controlling automatically .................94
Cooling with air dehumidification ..... 94
Defrosting the windows ...................94
Defrosting the windshield ................94Dual-zone automatic climate
control
....................................... 93, 94
Important safety notes ..............92, 94
Indicator lamp .................................. 94
Maximum cooling ............................ .94
Notes on using dual-zone
automatic climate control ................94
Overview of systems ........................92
Problems with "cooling with air
dehumidification" ............................. 94
Problem with the rear window
defroster .......................................... 94
Refrigerant ..................................... 261
Setting the air distribution ...............94
Setting the airflow ........................... 94
Setting the temperature ..................94
Switching air-recirculation mode
on/off .............................................. 94
Switching on/off .............................. 94
Switching residual heat on/off ........94
Switching the rear window
defroster on/off ............................... 94
Switching the ZONE function on/
off .................................................... 94
Windshield defroster ........................94
Cockpit
Overview .......................................... 30
see Instrument cluster
COMAND
Display ........................................... 173
Examples of operation ...................178
Menu overview .............................. 174
COMAND controller ...........................177
COMAND control panel .....................176
Combination switch ............................83
Compass Display messages ..........................144
Connecting a USB device
see also Digital Operator's Manual 170
Consumption statistics (on-board
computer) .......................................... 144
Convenience opening feature ............94
Convenience telephony see also Digital Operator's Manual 170
Coolant (engine)
Checking the level .........................203
Display message .................... 144, 152
Filling capacity ............................... 2636
Index

Turn signals
Display message ............................ 144
Switching on/off .............................. 83
TWR (Tongue Weight Rating)
(definition) ......................................... 249
Type identification plate see Vehicle identification plate U
Unlocking Emergency unlocking .......................69
From inside the vehicle (central
unlocking button) ............................. 69 V
Variable SPEEDTRONIC Function/notes ............................. 112
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 27
Display message .................... 144, 157
Equipment ....................................... 26
Limited Warranty ............................. 27
Loading .......................................... 237
Locking (in an emergency) ...............69
Locking (SmartKey) .......................... 66
Lowering ........................................ 253
Parking for a long period ................ 106
Pulling away ..................................... 98
Raising ........................................... 251
Securing from rolling away ............251
Towing away .................................. 221
Tow-starting ................................... 221
Transporting .................................. 223
Unlocking (in an emergency) ...........69
Unlocking (SmartKey) ......................66
Vehicle data ................................... 264
Vehicle data ....................................... 264
Vehicle data (off-road driving) Approach/departure angl e............ 265
Fording depth ................................ 264
Maximum gradient climbing ability 265
Vehicle dimensions ...........................264
Vehicle emergency locking ................69
Vehicle identification number see VIN Vehicle identification plate
..............258
Vehicle level (display message) .......144
Vehicle tool kit .................................. 212
Ventilation Setting the airflow ........................... 94
Video
see also Digital Operator's Manual 170
Video (DVD) ........................................ 144
VIN ...................................................... 258
Voice Control System see Separate operating instructions W
Warning and indicator lamps ABS ................................................ 160
Brakes ........................................... 159
Coolant .......................................... 165
Cruise control ................................ 110
Distance warning ........................... 166
DISTRONIC PLUS ........................... 166
ESP ®
.............................................. 162
ESP ®
OFF ....................................... 163
LIM (DISTRONIC PLUS) ..................116
LIM (variable SPEEDTRONIC )......... 113
Overview .......................................... 32
PASSENGER AIR BAG OFF ...............44
Seat belt ........................................ 158
SRS ................................................ 164
Tire pressure monitor ....................167
Warning triangle ................................ 212
Washer fluid Display message ............................ 144
Weather display (COMAND)
see also Digital Operator's Manual 170
Wheel bolt tightening torque ...........253
Wheels Changing a wheel .......................... 249
Checking ........................................ 229
Cleaning ................................ 206, 208
Cleaning (warning) .........................250
Important safety notes ..................228
Interchanging/changing ................249
Mounting a new wheel ...................252
Mounting a wheel .......................... 250
Overview ........................................ 228
Removing a wheel ..........................252
Storing ........................................... 250 Index
19

Engine
Display messages Possible causes/consequences and
M
MSolutions ?
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
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 104).
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 †).
Otherwise, 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. 152
Display messagesOn-board computer and displays

Engine
Problem Possible causes/consequences and
M
MSolutions ?
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow to the engine radiator may be blocked or the coolant level
may be too low.
G WARNING
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 (Y page 104).
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 (Y page 203).
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
mountainous terrain, and stop-start driving. Warning and indicator lamps in the instrument cluster
165On-board computer and displays Z

engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters that have
not been specifically approved for the
service system
R replacing engine oil and oil filters after
the interval for replacement specified by
the service system has been exceeded
R using engine oil additives.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic
converter. Have excess oil siphoned off. Example: engine oil cap
X
Turn cap :counter-clockwise and remove
it.
X Add the amount of oil required.
Observe the specifications in the on-board
computer when doing so or fill carefully to the
maximum mark on the oil dipstick.
Further information on engine oil
(Y page 261).
i The difference between the minimum
mark and the maximum mark on the oil
dipstick is approximately 2.1 US qt (2 l).X
Replac e cap:on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely. Additional service products
Checking coolant level G
WARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant 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
vehicle is on a level surface and the engine
has cooled down.
X Turn the SmartKey to position 2in the
ignition lock (Y page 97).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Slowly turn cap :half a turn counter-
clockwise to allow excess pressure to
escape. Engine compartment
203Maintenance and care Z

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 expansion tank ;.
X If necessary, add coolant that has been
tested 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 262).
Adding washer fluid to the windshield
washer system/headlamp cleaning
system 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. Example: washer fluid reservoir
X
To open: pull cap:upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages. Further information on windshield washer
fluid/antifreeze (Y
page 263).
Brake fluid level !
If you notice that the brake fluid level in
the brake fluid reservoir has fallen to the
MIN mark or less, check the brake system
immediately for leaks. Also check the
thickness of the brake linings. Visit a
qualified specialist workshop immediately.
Do not add brake fluid. This does not
correct the error. Only check the brake fluid level when the
vehicle is on a level surface.
If the brake fluid level is between MIN
mark
:and MAX mark ;on the brake fluid
reservoir, it is correct. Maintenance
Service interval display
Service messages Information on the type of service and service
intervals (see the separate Maintenance
Booklet).
You can obtain further information from an
authorized Mercedes-Benz Center or at
http://www.mbusa.com (USA only).
The ASSYST service interval display informs
you of the next service due date.
If a service due date has been exceeded, you
also hear a warning tone.204
MaintenanceMaintenance and care

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 27).Identification plates
Vehicle identification plate with
vehicle identification number (VIN)
and paint code number
In the Digital Operator's Manual you will find
information on the following topics:
R Vehicle identification plate
R VIN
R Engine number Vehicle identification number (VIN)
:
VIN (on the lower edge of the windshield) Engine number Service products and filling
capacities
Important safety notes
G
WARNING
Service products may be poisonous and
hazardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children. H
Environmental note
Dispose of service products in an
environmentally 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. You should therefore only use
products that have been tested and approved
by Mercedes-Benz.
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
inscription 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
indicate 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. 258
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