2008 MERCEDES-BENZ G55AMG Engine fan

68 Safety and Security
Occupant safety
In this section you will learn the most
important facts about the restraint
systems of the vehicle.

Seat belts (page 74)

Child restraints (page 83)

Lower Anchors and Tethers for
CH
ildren (LATCH) (page 82)
Additional protection potential provide

Supplemental Restraint System (SRS)
with

Air bags (page 70)

Air bag control unit (with crash
sensors)

Emergency Tensioning Device
(ETD) for seat belts (
page 77)
Air bag system components with

Front passenger front air bag off
indicator lamp (
page 80)

BabySmartTM air bag deactivation
system (
page 80) Although independent systems, their
protective functions work in conjunction
with each other.
The
1 indicator lamp in the instrument
cluster (
page 27) comes on:

for about 4 seconds when you turn the
SmartKey in the starter switch to
position 1.

for about 4 seconds when you start the
engine by turning the SmartKey. The SRS components are in operational
readiness if the
1indicator lamp is not
lit when the engine is running.
A malfunction in the system has been
detected if the 1 indicator lamp:

fails to go out after approximately
4 seconds.

does not come on at all.

comes on after the engine was started
or while driving.
For more information, see “Practical hints”
(
page 332).
iFor information on infants and children
traveling with you in the vehicle and restraint
systems for infants and children, see “Children
in the vehicle” (
page 77).
iThe 1 indicator lamp remains lit if the
SmartKey is turned to position 2 and left there.
The indicator lamp will go out when you start the
engine.
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74 Safety and Security
Occupant safety
Window curtain air bags1 Window curtain air bag
The window curtain air bags are deployed:

on the impacted side of the vehicle

in impacts exceeding a preset deploy-
ment threshold

independently of the front air bags
The window curtain air bags are not
deployed in impacts which do not exceed
the system’s deployment threshold.
Seat belts
The use of seat belts and infant and child
restraint systems is required by law in all
50 states, the District of Columbia, the
U.S. territories and all Canadian provinces.
Even where this is not the case, all vehicle
occupants should have their seat belts fas-
tened whenever the vehicle is in motion.
When the engine is started, the seat belt
telltale < illuminates to remind you and
your passengers to fasten your seat belts.
If the driver’s seat belt is not fastened be-
fore the engine is started, the seat belt tell-
tale < illuminates and a warning chime
sounds for approximately 6 seconds when
the engine is started.
Always wear your seat belt. All vehicle oc-
cupants always need to have their seat
belts fastened and wear them properly. For more information, see “Fastening the
seat belts” (
page 48).
iFor information on infants and children
traveling with you in the vehicle and restraint
systems for infants and children, see “Children
in the vehicle” (
page 77).
Warning!G
Always fasten your seat belt before driving
off. Always make sure your passengers are
properly restrained, even those sitting in the
rear.
Failure to wear and properly fasten and
position your seat belt greatly increases
your risk of injuries and their likely severity
in an accident. You and your passengers
should always wear seat belts.
In the same crash, the po ssibility of injury or
death is lessened if you are properly wearing
your seat belt. Air bags can only protect as
they are designed if the occupants are prop-
erly wearing their seat belts.
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267
Operation
Engine compartment
 Engine compartment
Hood
Opening
Warning!G
Do not pull the release lever while the vehi-
cle is in motion. Otherwise the hood could
be forced open by passing air flow.
This could cause the hood to come loose
and injure you and others.
Warning!G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature display indicates that the engine is
overheated, do not open the hood. Move
away from vehicle and do not open the hood
until the engine has cooled. If necessary,
call the fire department.
Warning!G
You could be injured when the hood is open
– even when the engi ne is switched off.
Parts of the engine can become very hot. To
prevent burns, let the engine cool off com-
pletely before touching any components on
the vehicle. Comply with all relevant safety
precautions.
Warning!G
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running.
The radiator fan may continue to run for
approximately 30 seconds or even restart
after the engine has b een turned off. Stay
clear of fan blades.
Warning!G
The engine is equipped with a transistorized
ignition system. Becaus e of the high voltage,
it is dangerous to touch any components
(ignition coils, spark plug sockets,
diagnostic socket) of the ignition system

with the engine running

while starting the engine

if ignition is “on” and the engine is
turned manually
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348 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
•The cooling fan for the coolant is
malfunctioning.Observe the coolant temperature
gauge in the multifunction display
(
page 26).
If the coolant temperature is
below 120°C, you may continue
driving to the nearest specialist
workshop.
Avoid placing heavy loads on the
engine (e.g. by driving uphill) as well as
stop-and-go traffic.
Have the fan replaced as soon as
possible.
ÑCr. control
and SPEED-
TRONIC
inoperativeThe cruise control is malfunctioning.Have the cruise control checked at an
authorized Mercedes -Benz Light Truck
Center.
JYou are attempting to drive with one or
more doors open.Close the doors.
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397
Practical hints
Jump starting
 Jump starting
If the battery is disc harged, the engine can
be started with jumper cables and the
battery of another vehicle. Observe the
following:

Jump starting should only be performed
using the jump-start terminals located
in the engine compartment
(
page 398).

Jump starting should only be performed
when the engine and catalytic
converter are cold.

Do not start the engine if the battery is
frozen. Let the battery thaw out first.

Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a higher voltage battery could
damage the vehicle’s electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.

Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.

Always make sure the jumper cables
are not on or near pulleys, fans, or
other parts that move when an engine
is started or running.
Warning!G
Failure to follow thes e directions will cause
damage to the electr onic 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 pr oduce hydrogen gas,
which is flammable and very 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 explod ing, causing personal
injury.
Read all instructions before proceeding.
!Do not tow-start the vehicle.
!Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick charge unit.
If the engine does not run after several unsuc-
cessful starting attempts, have it checked at the
nearest authorized Mercedes-Benz Light Truck
Center.
Excessive unburned fuel generated by repeated
failed starting attempts may damage the
catalytic converter.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still
attached to a battery.
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438 Index
Immobilizer 95Activating 95
Deactivating 95
Infant and child restraint systems 78 Installing 83
LATCH child seat anchors 82
Information button see Tele Aid
Inside rear view mirror Auto-dimming 177
Installing Cargo compartment cover blind 214
Infant and child restraint systems 83
Wiper blades 387
Instructions Loading 208
Instrument cluster 26, 130 Coolant temperature gauge 131
Digital speedometer 140
Illumination 130
Lamps in 324–332
Multifunction display 133
Outside temperature 140
Outside temperature indicator 132
Selecting language 149
Instrument lighting 130
Instruments and controls see Cockpit Interior lighting
Automatic operation 125
Delayed shut-off 154
Manual operation 126
Interior lighting, front 125
Interior lighting, rear 126
Interior rear view mirror Adjusting 46
Intermittent wipe 60 Activating 60
Deactivating 60
Intermittent wiping 59
J
Jack 365
Jump starting 397 K
Key
Messages in display 351
Key, mechanical 368
Key, SmartKey Battery check lamp 102
Checking the batteries 103
Factory setting 102
Global locking 102
Global unlocking 102
Loss of 103
Positions in starter switch 39
Remote control 100
Restoring to factory setting 103
Selective setting 102
Starting the engine 54
Unlocking with 38
Keys 100
Kickdown (Automatic transmission) 166
Kilometers/miles in speedometer 149
Kilopascal 305
Km/h or mph in speedometer 149
L
Labels, identification 410
Lamp bulbs, exterior 375
Lamp in center console 335
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