2008 MERCEDES-BENZ G-CLASS SUV brake

Opening and closing
54 Opening and closing
Key
The vehicle's equipment includes two keys
with remote control. Each key contains an
emergency key element. To help you distin-
guish between the two keys, the emergency
key element release catches each have a dif-
ferent colour.
The key is configured at the factory to cen-
trally lock and unlock the following:
R the doors
R the rear door or tailgate (Cabriolet)
R the fuel filler flap G
Risk of accident
If children are left unsupervised in the vehi-
cle, they could:
R open a door from the inside at any time,
even if it has been locked
R start the vehicle using a key which has
been left in the vehicle
R release the parking brake
They could endanger themselves and oth-
ers. Never leave children unsupervised in
the vehicle. Always take the key with you when leaving the vehicle, even if you are
only leaving it for a short time. 1
Battery check lamp
2 j To lock the vehicle
3 k To unlock the vehicle
4 Emergency key element release catch
5 Emergency key element (mechanical)
i The key can also be used to open and
close the sliding/tilting sunroof* and the
side windows. You can open them using the
summer opening feature (Y page 85). You
can close them using the convenience clos-
ing feature (Y page 85). Factory settings X
To unlock centrally: press thekbut-
ton.
The turn signals flash once. The locking
knobs in the doors pop up. The anti-theft
alarm system* is deactivated.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer.
i If you do not open any of the doors after
you have unlocked the vehicle, the vehicle
relocks automatically after approximately
40 seconds.
X To lock centrally: press thejbutton.
The turn signals flash three times if the
doors, rear door and fuel filler flap are
closed. The locking knobs in the doors drop
down. The anti-theft alarm system* is
primed.
Individual settings You can change the setting of the locking
system in such a way that pressing the
k button only unlocks the driver's door
and the fuel filler flap. This could be useful if
you frequently travel on your own. Controls
* optional
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Driving and pa
rking 86X
Point the tip of the key at the driver's door
handle.
X Lock the vehicle by pressing the jbut-
ton.
X Press and hold the jbutton until the
side windows and the sliding/tilting sun-
roof* are fully closed.
X Make sure that all the side windows and the
sliding/tilting sunroof* are closed. Driving and parking
Starting the engine
G
Risk of accident
Do not keep any objects in the driver's foot-
well. If you use a floormat or carpet in the
driver's footwell, make sure that they are
correctly secured and that there is suffi-
cient clearance for the pedals.
Objects could otherwise get between the
pedals in the event of sudden braking or
acceleration. You may then no longer be
able to brake, change gear or accelerate as
intended. This may result in an accident and
injury. G
Risk of poisoning
Never leave the engine running in enclosed
spaces. The exhaust gases contain carbon
monoxide. Inhaling exhaust fumes consti-
tutes a health hazard and could lead to loss
of consciousness or even death.
! Do not depress the accelerator pedal
when starting the engine. i
If you depress the brake when starting the
engine, pedal travel will be unusually long
and there will be less pedal resistance.
Automatic transmission P
Park position with selector lever lock
R To select reverse gear
N To select neutral
D Drive position
X Before starting, make sure Pis selected.
i The engine can also be started when the
selector lever is in position N.Cont
rols
* optional
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Driving and pa
rking 87
Further information about the automatic
transmission (Y
page 89).
Starting the engine X
Apply the parking brake.
X To start a petrol engine: turn the key to
position 3in the ignition lock (Y page 59)
and release it as soon as the engine is run-
ning.
X To start a diesel engine: turn the key to
position 2in the ignition lock .
The q preglow indicator lamp in the
instrument cluster lights up.
X When the qpreglow indicator lamp
goes out, turn the key to position 3and
release it as soon as the engine is running.
i You can start the engine without preglow
if the engine is warm. Pulling away
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only shift into reverse gear when the vehi-
cle is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
i It is only possible to move the selector
lever to the desired position if you depress
the brake pedal. Only then is the selector
lever lock released.
X Depress the brake pedal and hold it down.
X Release the parking brake.
X Move the selector lever to position Dor R.
i Wait until the shift process is completed
before pulling away.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
i Upshifts take place at higher engine
speeds after a cold start. This helps the catalytic converter to reach its operating
temperature more quickly.
AAS (Start-off Assist) AAS helps you when pulling away on uphill
gradients. It holds the vehicle for a short time
after you have removed your foot from the
brake pedal. This gives you enough time to
move your foot from the brake pedal to the
accelerator pedal and depress it before the
vehicle begins to roll back. G
Risk of accident
Never leave the vehicle when it is held by
start-off assist. After approximately one
second, AAS stops holding your vehicle and
it could roll away.
X Depress the brake pedal.
X Pull away.
i Once you have taken your foot off the
brake pedal, the vehicle is held for around
one second.
AAS does not function if:
R you are pulling away on a level road or a
downhill gradient
R the selector lever is in the Nposition Controls
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Driving and pa
rking 88
R
the vehicle is secured with the parking
brake
R ESP ®
is malfunctioning Parking
G
Risk of accident
Only remove the key from the ignition lock
when the vehicle is stationary as you can-
not steer the vehicle with the key removed.
Never leave children unsupervised in the
vehicle. They could release the parking
brake. This could lead to a serious or fatal
accident. G
Risk of fire
Make sure that the exhaust system does
not under any circumstances come into
contact with easily ignitable material such
as dry grass or petrol. The material could
otherwise ignite and set the vehicle on fire. Parking brake 1
Parking brake
2 Release button
X To release: depress the brake pedal and
keep it depressed.
The selector lever lock is released.
X Pull the parking brake 1up firmly.
X Press release button 2on parking brake
1 and move the parking brake down to the
stop.
The 3 warning lamp in the instrument
cluster goes out. X
To apply: pull parking brake 1up firmly.
If the key is in position 1or 2in the ignition
lock, then the indicator lamp 3in the
instrument cluster is on.
i On steep slopes, turn the front wheels
towards the kerb. Switching off the engine
G
Risk of accident
If the engine is not running, there is no
power assistance for the steering and
brakes. Steering and braking then takes
much more effort.
As a result, you might lose control of the
vehicle, cause an accident and injure your-
self and others.
Do not switch off the engine while driving.
Vehicles with automatic transmission X
Move the selector lever to P.
X Turn the key to position 0(Y page 59) in
the ignition lock and remove it.
The immobiliser is activated. Controls
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Transmission
90
Selector lever positions ì
Park position
Prevents the vehicle from rolling
away when stopped. Only move the
selector lever to Pwhen the vehicle
is stationary.
i The key can only be removed
when the selector lever is in posi-
tion P. If the key is removed from
the ignition lock, the selector
lever is locked in position P.í
Reverse gear
Only move the selector lever to
R
when the vehicle is stationary. ë
Neutral
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
Do not move the selector lever to
N
while you are driving. The auto-
matic transmission could other-
wise be damaged.
If ESP ®
is deactivated or faulty:
only move the selector lever to Nif
the vehicle is in danger of skidding,
e.g. on icy roads. ê
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
One-touch gearshifting
When the selector lever is in position
D, you
can perform gearshifts yourself, even on vehi-
cles with automatic transmission.
X To shift up: briefly press the selector lever
to the right towards D+.
The automatic transmission shifts up to the
next gear, depending on the gearshift pro-
gram selected. This also extends the shift
range. X
To shift down: briefly press the selector
lever to the left towards D–.
The automatic transmission shifts down to
the next gear, depending on the gear cur-
rently selected. This also restricts the shift
range.
i To prevent the engine from overrevving,
the automatic transmission does not shift
down if you push the selector lever towards
D– while driving at too high a speed.
X To derestrict the shift range: press and
hold the selector lever towards D+until D
is shown once more in the display.
The automatic transmission shifts from the
current shift range directly to D.
X To select the most effective shift
range: press and hold the selector lever to
the left towards D–.
The automatic transmission will shift to a
range which allows ideal acceleration and
deceleration. To do this, the automatic
transmission will shift down one or more
gears.
i The automatic transmission cannot shift
down beyond second gear. To shift into first
gear, the selector lever must be moved
towards D–again. Controls
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Transmission
92 Transfer case
The vehicle has permanent all-wheel drive.
The front and rear axles are being constantly
driven.
You will find further information about driving
off-road in the "Operation" section
(Y page 172). Shift ranges H HIGH
Position for all normal on-road driv-
ing conditions.
L LOW
Low-range position for driving off-
road.
Also for use on steep uphill or
downhill gradients, especially
when towing a trailer.
The vehicle travels around half the
speed of on-road driving range
HIGH. The drive power is corre-
spondingly higher.
N Neutral
Neutral position
No power is transmitted to the
drive wheels.
Changing gears
G
Risk of accident
Always apply the parking brake when park-
ing the vehicle. Make sure that the transfer
case is not set to Nwhen parking. Other-
wise, the vehicle could begin to move. 1
Selector lever position/shift range
2 Transfer case position
The current shift range 1and the transfer
case position 2appear in the instrument
cluster display. Transfer case switchControls
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Transmission
93
From HIGH to LOW
!
Only carry out the gear selection if
R the engine is running.
R the vehicle is rolling
R the automatic transmission is in selector
lever position N
R you are not driving faster than 40 km/h
You could otherwise damage the transfer
case.
X Push the transfer case switch to LOW.
If the gear selection is complete, the trans-
fer case position Lappears in the display.
From LOW to HIGH
! Only complete the gear selection if
R the engine is running.
R the vehicle is rolling
R the automatic transmission is in selector
lever position N
R you are not driving faster than 70 km/h
You could otherwise damage the transfer
case. X
Push the transfer case switch to HIGH.
When the gear change process is complete,
the transfer case position Happears in the
display.
If the gear change is not completed, the fol-
lowing messages could appear in the display:
R TC Shift conditions not fulfilled
You have not met one or more shift condi-
tions.
R TC in Neutral
The transfer case has cancelled the gear
change process and is in N. The transfer
case position Nappears in the display.
R TC Gear change process cancelled
The transfer case has not performed the
gear change process.
X Carry out the gear change process again.
Make sure to meet all conditions for chang-
ing gears.
Shift to neutral
X Turn the key to position 2in the ignition
lock (Y page 59).
X Apply the parking brake.
X Depress the brake pedal. X
Move the selector lever to posi-
tion N(Y page 89).
X Push the transfer case switch to LOWfor
about 30 seconds.
When the gear selection is complete, the
transfer case position Nappears in the dis-
play.
i If the transfer case is in N, the key in the
ignition lock and you open the driver's door,
the message TC in Neutral appears in
the display. If you then release the parking
brake, a warning tone will sound. Differential locks
Differential locks improve the vehicle’s trac-
tion.
Your vehicle is equipped with the following:
R A differential lock for the transfer box: this
controls the balance between the front and
rear axles.
R A differential lock for the rear axle: this
controls the balance between the wheels
and the rear axle.
R A differential lock for the front axle: this
controls the balance between the wheels
and the front axle. Controls
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Driving sys
tems 113
If the call is connected, the call duration
appears in the multi-function display. If it is
stored in the phone book, the name is also
displayed. Otherwise, the number dialled is
displayed.
or
X If you do not wish to make a call, press the
ì button.
Redialling The on-board computer stores the last phone
numbers which were dialled.
X
Press the èor· button to select the
Telephone menu.
X Press the íbutton to call up the most
recently dialled number in the redial mem-
ory.
X Press the jork button to select the
desired name or number.
X Press the íbutton to start dialling. Driving systems
Overview of driving systems
The vehicle's driving systems are described
on the following pages:
R Cruise control and variable Speedtronic
which you can use to control the speed of
the vehicle
R Ultrasonic reversing aid*, which helps you
park and manoeuvre
R Reversing camera *,which helps you when
parking and manoeuvring
You will find further information about driving
off-road in the "Operation" section
(Y page 172). Cruise control
Cruise control maintains a constant road
speed for you. On long and steep downhill
gradients, especially if the vehicle is laden or
towing a trailer, you must select shift range
1, 2or 3in good time. By doing so you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This
could cause the drive wheels to lose their
grip and the vehicle could skid.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 30 km/h. G
Risk of accident
Cruise control cannot take account of road
and traffic conditions.
Always pay attention to traffic conditions
even when cruise control is activated.
Cruise control is only an aid designed to
assist driving. You are responsible for the Cont
rols
* option al
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