2008 MERCEDES-BENZ ML SUV wheel

Off-road driving
144
X
Start the engine.
The differential locks are in AUTO mode.
The indicator lamp in selector wheel 1
lights up above symbol for AUTO mode
2.
Engaging manually G
Risk of accident
When driving on a firm road surface, only
drive in AUTO mode, never with manually
engaged differential locks. If differential
locks have been engaged manually, the
vehicle's steerability is greatly impaired
and the risk of accident thereby increased.
Do not manually engage or disengage the
differential locks while cornering. The vehi-
cle motion could otherwise be jerky. You
could lose control of the vehicle as a result
and cause an accident.
Only engage the differential locks manually if
traction in AUTO mode is insufficient.
At speeds of up to 30 km/ h,you can engage
the differential locks in this order: 3, then
4. X
Start the engine.
X Turn selector wheel 1to desired position
3 or4.
The indicator lamp in selector wheel 1
lights up at the corresponding symbol.
The engaged differential appears in the multi-
function display: 5
The differential lock for the transfer case
is locked.
The differential locks are not controlled auto-
matically. The steerability of the vehicle is
restricted considerably. Drive carefully and
accelerate gently for optimum traction.
You can switch back to AUTO mode at any
time. For safety reasons, the differential locks
disengage automatically at speeds above
50 km/h. If you stop the vehicle and switch
off the ignition for longer than ten seconds,
the differential locks switch back to AUTO
mode. Message in the multi-function display
Diff. lock system overheated.
Wait briefly
The differential lock system has overheated
and briefly disengaged.
X
Continue driving.
The differential locks cool off and are soon
available once again. Cont
rols
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Driving sys
tems 145Driving systems
Overview of driving systems
The vehicle's driving systems are described
on the following pages:
R Cruise control, Distronic* and Speedtronic,
which are used to control the speed of the
vehicle
R AIRMATIC package*, consisting of level
control* for individual adjustment of
ground clearance and ADS* (Adaptive
Damping System), for individual adjust-
ment of suspension tuning
R Parktronic*, which assists you in parking
and manoeuvring
R Reversing camera*, which assists you
when parking and manoeuvring
The ABS, BAS, ESP ®
, EBV and 4-ETS vehicle
safety systems and the distance warning sys-
tem* are described in the "Safety" section
(Y page 57). Cruise control
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. 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 vehicle's speed and for braking in good
time.
G
Risk of accident
Do not use cruise control:
R in road and traffic conditions which do
not allow you to maintain a constant
speed (e.g. heavy traffic or winding
roads). You could otherwise cause an
accident.
R on slippery roads. Braking or accelerat-
ing could cause the drive wheels to lose
traction and the vehicle could then skid.
R when there is poor visibility, e.g. due to
fog, heavy rain or snow
Cruise control lever You can operate cruise control and variable
Speedtronic with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
Cruise control is selected.
R LIM indicator lamp lit:
Variable Speedtronic is selected. Controls
* optional
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Driving sys
tems 148 Distronic*
i Distronic is only available for certain
countries.
Distronic regulates the speed and automati-
cally maintains the distance to the vehicle in
front. It brakes automatically in order to avoid
exceeding the set speed. 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 over-
heating and wearing too quickly. G
Risk of accident
The brake pedal is retracted when Distronic
brakes. Do not restrict the movement of the
pedal in any way.
R Do not put any objects in the footwell.
R Ensure that floor mats and carpets are
fixed securely.
R Do not place your foot under the brake
pedal as it could become trapped.
You could otherwise cause an accident and
injure yourself and others. 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. G
Risk of accident
Distronic is only an aid designed to assist
driving. The driver remains fully responsible
for the vehicle's distance to other vehicles,
the vehicle's speed and braking in good
time.
Distronic does not react to:
R pedestrians
R stationary obstacles on the road, e.g. sta-
tionary or parked vehicles
R oncoming and crossing traffic
Distronic may not detect narrow vehicles
driving in front, e.g. motorcycles, or vehi-
cles driving on a different line. Therefore,
always pay attention to traffic conditions
even when Distronic is activated. Other-
wise, you may fail to recognise danger in
time, could cause an accident and injure
yourself and others.
If a slower-moving vehicle is detected in front,
Distronic causes your vehicle to brake and maintain the preset distance to the vehicle in
front that you have set. G
Risk of accident
Distronic cannot take account of road and
traffic conditions. Deactivate, or do not
activate, Distronic if it does not detect the
vehicle in front, or if it no longer detects it.
This is especially the case:
R before corners
R on filter lanes
R when changing to a lane with faster mov-
ing traffic
R in complex driving situations or where
the lanes are diverted, e.g. at motorway/
roadway construction sites
Otherwise, Distronic maintains the current
speed or accelerates to the set speed.
Distronic cannot take account of weather
conditions. Deactivate, or do not activate,
Distronic:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip Controls
* optional
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Driving sys
tems 151
Setting the specified minimum distance
for Distronic You can set the specified minimum distance
for Distronic by varying the time span
between one and two seconds. This time span
determines the distance that Distronic should
maintain from the vehicle in front, depending
on the road speed. You can read this distance
in the multi-function display (Y page 152).1
To reduce the set distance
2 Thumbwheel
3 To increase the set distance X
To increase: turn thumbwheel 2towards
3.
Distronic then maintains a greater distance
between your vehicle and the vehicle in
front.
X To decrease: turn thumbwheel 2towards
1.
Distronic then maintains a shorter distance
between your vehicle and the vehicle in
front.
i Make sure that you maintain the mini-
mum distance to the vehicle in front
required by law. Adjust the distance to the
vehicle in front if necessary. Distronic displays in the speedometer 1
Speed of the vehicle in front
2 Segments
3 Stored speed
When Distronic is activated, one or two seg-
ments in the set speed range light up.
i For design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for Distronic.
If Distronic detects a vehicle in front, seg-
ments 2between speed of the vehicle in
front 1and stored speed 3light up. Controls
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Driving sys
tems 154
of its narrow width. The distance to the vehi-
cle in front will be too short. Speedtronic
Speedtronic brakes automatically so that you
do not exceed the set speed. 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. If
you need additional braking, depress the
brake pedal repeatedly rather than continu-
ously. G
Risk of accident
Never depress the brake pedal continu-
ously while the vehicle is in motion, e.g.
never cause the brakes to rub by applying
constant slight pedal pressure. This causes
the brake system to overheat, increases
the braking distance and can lead to the
brakes failing completely. 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.
You can set a variable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
(Y page 156) G
Risk of accident
Speedtronic is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in good
time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic With the cruise control lever, you can operate
cruise control, Distronic* and variable
Speedtronic.The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
Cruise control or Distronic* is selected.
R LIM indicator lamp lit:
Variable Speedtronic is selected.
You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running. 1
To store the current speed or a higher
speed
2 LIM indicator lamp
3 Storing the current speed or call up the
last stored speed
4 To store the current speed or a lower
speed Controls
* optional
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Driving sys
tems 158 Level control*
The level control adapts the vehicle level
automatically to the current operating and
driving situation. This results in reduced fuel
consumption and improved handling.
When you are driving in ADS* COMFor
AUTO (Ypage 157), the vehicle is lowered to
the high-speed level as the speed increases.
As the vehicle decelerates, the vehicle is
raised back up to highway level.
In ADS* SPORT(Ypage 157), the vehicle
skips highway level and lowers directly to the
high-speed level depending on the basic set-
ting (Y page 158) or (Y page 160).
Make changes to the vehicle level while the
vehicle is in motion. This enables the vehicle
to adjust to the new level as quickly as pos-
sible.
The vehicle level may change visibly when you
park the vehicle and the outside temperature
changes. When the temperature drops, the
vehicle level is lower; with an increase in tem-
perature, the vehicle level rises.
When you unlock the vehicle or open a door,
the vehicle begins to balance the load dis-
crepancies while still parked. However, for
significant level changes, e.g. after the vehi-
cle has been stationary for a long period, the engine must be on. For safety reasons, the
vehicle is only lowered when the doors are
closed. Lowering is interrupted if a door is
opened and continues when the door has
been closed. G
Risk of injury
Make sure that nobody is in the vicinity of
the wheel arch or the underbody when you
begin a level change. You could otherwise
trap yourself or others. G
Risk of accident
Always select as low a vehicle level as pos-
sible. If the vehicle level is high, the vehicle
centre of gravity shifts upwards. This
increases the risk of the vehicle tipping
over.
Adapt your driving style to suit the vehicle
level. ESP ®
cannot reduce the risk of an
accident if you drive too fast. ESP ®
cannot
override the laws of physics.
! When driving on extremely rough terrain,
select a high vehicle level in good time.
Make sure there is always sufficient ground
clearance to prevent damage to the vehi-
cle. You will find information about driving off-
road in the "Operation" section
(Y
page 235).
Vehicles with AIRMATIC package* Basic settings, excluding ML 63 AMG
The extent to which the vehicle is raised or
lowered depends on the basic setting selec-
ted. Select raised level for off-road driving or
highway/high-speed level for normal roads.
The individual vehicle levels are:
R
Raised level: 60 mm above highway level
R Highway level: +/- 0 mm
R High-speed level: 15 mm below highway
level
Basic settings for the ML 63 AMG
The extent to which the vehicle is raised or
lowered depends on the ADS setting selec-
ted. Select raised level for off-road driving or
highway/high-speed level for normal roads.
With AUTO ADS, the vehicle is 73 mm higher
when in raised level than it is in highway level.
Raised level
Only select the raised level when this is appro-
priate for the road conditions. Otherwise, fuel Controls
* optional
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Driving sys
tems 159
consumption increases and handling per-
formance is affected.
1
Button
2 Indicator lamp
X Start the engine.
X Press button 1.
Indicator lamp 2flashes. The vehicle rises
to the raised level. While the adjustment is taking place, a mes-
sage appears in the multi-function display,
e.g. : If you press the
æorç button on the
multi-function steering wheel, the message
will disappear.
Once the vehicle has reached the raised level,
indicator lamp 2remains lit. You will see a
message in the multi-function display, for
example: If you have not previously selected the off-
road menu (Y
page 126) in the on-board
computer, the message disappears after
about five seconds. If you try to select the raised level at a speed
above 70 km/h, the Level selection not
permitted message appears
Highway/high-speed level
! Make sure there is enough ground clear-
ance when the vehicle is being lowered. It
could otherwise hit the ground, damaging
the underbody. 1
Button
2 Indicator lamp
X Start the engine.
If indicator lamp 2is lit:
X Press button 1.
Indicator lamp 2flashes. The vehicle is
adjusting to highwa y/high-speed level. Controls
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Driving sys
tems 160
While the adjustment is taking place, a mes-
sage appears in the multi-function display,
e.g. : If you press the
æorç button on the
multi-function steering wheel, the message
will disappear.
Once highway level has been reached, indi-
cator lamp 2goes out. You will see a mes-
sage in the multi-function display, for exam-
ple: If you have not previously selected the off-
road menu (Y page 126) in the on-board
computer, the message disappears after
about five seconds. The vehicle automatically selects highway
level if you are driving at a speed above
90 km/h or if you drive at between
70 km/h and 90 km/h for around 20 sec-
onds. At high speeds, the vehicle is lowered
to high-speed level in accordance with the
ADS basic setting (Y page 157).
Vehicles with the Off-Road Pro engi-
neering package* Basic settings
The extent to which the vehicle is raised or
lowered depends on the basic setting selec-
ted.
Select:
R
Off-road level 3 for freeing the vehicle in
impassable terrain at low speeds only
R Off-road level 2 for driving on normal off-
road terrain
R Off-road level 1 for driving on easily nego-
tiable off-road terrain
R Highway/high-speed level for normal roads The individual vehicle levels are:
R
Off-road level 3: 90 mm above highway
level
R Off-road level 2: 60 mm above highway
level
R Off-road level 1: 30 mm above highway
level
R Highway level: +/- 0 mm
R High-speed level: 15 mm below highway
level
Off-road levels G
Risk of accident
Off-road level 3 is not permitted for use on
public roads. Off-road level 3 gives your
vehicle a very high centre of gravity. This
increases the risk of the vehicle tipping
over.
R Only select off-road level 3 for driving off-
road in particularly rough terrain.
R Adjust your driving style to the altered
handling characteristics.
R Do not drive faster than 20 km/h. Controls
* optional
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