2007 MERCEDES-BENZ GL320CDI fuel

188 Controls in detail
Control system
Fuel consumption statistics since the
last reset
Press buttonÿ orè repeatedly
until the message
From start appears
in the multifunction display.
Press buttonj ork repeatedly
until the message
After reset appears
in the multifunction display.
1Distance driven since last reset
2Time elapsed since last reset
3Average speed since last reset
4Average fuel consumption since last
resetResetting fuel consumption statistics
Press buttonÿ orè repeatedly
until the message
From start appears
in the multifunction display.
Press buttonj ork repeatedly
until the message
After reset appears
in the multifunction display.
Press and hold the reset button in the
instrument cluster (
page 155) until
the value is reset to
0.Distance to empty
Press buttonÿ orè repeatedly
until the message
From start appears
in the multifunction display.
Press buttonj ork repeatedly
until the message
Range: appears in
the multifunction display.
The calculated remaining driving range
based on the current fuel tank level
appears in the multifunction display.
iThe fuel consumption statistics reset auto-
matically to 0 when either of the following values
is exceeded:

distance covered: 100 000 miles

time elapsed: 10 000 hours

281 Controls in detail
Driving systems
Vehicles without enhanced off-road
package*
Vehicles with enhanced off-road package*
1ADS switch
2Indicator lamp for SPORT setting
3Indicator lamp for COMF settingThe following settings are available:

AUTO (for normal driving situations)
Indicator lamps2 and3 are off.

SPORT (for sporty driving)
Indicator lamp2 comes on.
With the ADS SPORT setting, the vehi-
cle is lowered approximately 0.6 in
(15 mm).

COMF (for comfort driving)
Indicator lamp3 comes on.
Start the engine (page 41).
Press ADS switch1 repeatedly until
the desired suspension tuning is
reached.
Vehicle level control
The vehicle level control automatically
regulates the ride height to

reduce fuel consumption

improve driving stability by lowering
the center of gravity
The vehicle automatically regulates its ride
height based on the set vehicle height and
the current speed:

As your driving speed increases, the ve-
hicle is lowered by increments until it
reaches high-speed level.
Vehicles with ADS*:

If you are driving with the ADS set-
ting COMF or AUTO, the vehicle is
raised back to highway level as your
driving speed decreases.

You can select the high-speed level
via the ADS setting SPORT. In ADS
Sport, the vehicle is lowered direct-
ly to high-speed level as your driv-
ing speed increases.
iThe setting is stored when you turn off the
engine.

284 Controls in detail
Driving systems
Raised level
Only select the raised level if appropriate
for the driving situation encountered.
Otherwise:

fuel consumption may increase

handling characteristics of the vehicle
may be unfavorable
Start the engine (page 41).
If indicator lamp2 (
page 283) is off.
Press switch1 (page 283).
Indicator lamp2 flashes. The vehicle
adjusts to the raised level.The following message appears in the mul-
tifunction display while the level is being
set:
When the raised level is reached, indicator
lamp2 (
page 283) comes on continu-
ously and the following message appears
in the multifunction display for 5 seconds:Highway level
Start the engine (page 41).
If indicator lamp2 (
page 283) is on.
Press switch1 (page 283).
Indicator lamp2 flashes. The vehicle
adjusts to the highway level.
The following message appears in the
multifunction display while the level is
being set:
iYou can select the raised level at speeds up
to 40 mph (64 km/h). At higher speeds, the
messagen
Level selection not
permitted
appears in the multifunction dis-
play.
iThe message can be cleared by pressing
theèÿk or buttonj on the
multifunction steering wheel.
!Keep in mind that in rough or uneven roads,
adjusting the vehicle to a lower level may cause
the vehicle underbody to come in contact with
the road and result in damage to the vehicle un-
derbody. Always make sure the vehicle has suffi-
cient ground clearance before adjusting it to a
lower level.

287 Controls in detail
Driving systems
If you are driving too fast while using
off-road level 3, you will see the following
message in the multifunction display:

Reduce speed to
under 20 mph
(30 km/h)
Additional an acoustic signal sounds.
Only use the off-road levels when neces-
sary.
Otherwise:

fuel consumption may increase

handling characteristics of the vehicle
may be unfavorable
Start the engine (page 41).
Turn outer adjustment ring1
(
page 285) repeatedly until indicator
lamp3 (
page 285) of the desired
level flashes.

Off-road level 1, lower indicator
lamp flashes

Off-road level 2, lower and middle
indicator lamps flashes

Off-road level 3, lower, middle and
upper indicator lamps flashes
The vehicle adjusts to the correspond-
ing off-road level.
For example, the following message
appears in the multifunction display while
the level is being set:
The vehicle is raised from off-road level 1
to off-road level 2.When the off-road level 2 is reached, the
following message appears in the multi-
function display for 5 seconds:
The lower and middle indicator lamps3
(
page 285) comes on continuously.
While the vehicle is adjusting from off-road
level 2 to off-road level 3, you will see, for
example, the following message in the
multifunction display:
iThis message cannot be deactivated.
For more information, see “Display messages”
(
page 492).
iThe message can be cleared by pressing
theèÿk or buttonj on the
multifunction steering wheel.


304 Controls in detail
Loading
The gross vehicle weight which is the
weight of the vehicle including fuel, tools,
spare wheel, installed accessories, pas-
sengers and luggage/cargo must never
exceed the load limit and Gross Vehicle
Weight Rating (GVWR) for your vehicle as
specified on the placard located on the
driver’s door B-pillar (
page 550). In addi-
tion, the load must be distributed in such a
way so that the weight on each axle never
exceeds the Gross Axle Weight Rating
(GAWR) for the front and rear axle. The
GVWR and GAWR for your vehicle are indi-
cated on the certification label which can
be found on the driver’s door B-pillar
(
page 550).
For more information, see “Tire and Load-
ing Information” (
page 389).
The handling characteristics of a fully load-
ed vehicle depend greatly on the load dis-
tribution. It is therefore recommended to
load the vehicle according to the illustra-
tions shown, with the heaviest items being
placed towards the front of the vehicle.Please pay attention to and comply with
the following instructions when loading the
vehicle and transporting cargo:

Always place items being carried
against front or rear seat backrests,
and fasten them as securely as possi-
ble.

The heaviest portion of the cargo
should always be kept as low as possi-
ble against front or rear seat backrests.
For additional safety when transporting
cargo while the rear seats are unoccupied,
fasten the outer seat belts crosswise into
the opposite side buckles.
Cargo tie-down rings
Your vehicle is equipped with eight cargo
tie-down rings.
Carefully secure cargo by applying even
load on all rings with rope of sufficient
strength to hold down the cargo.
iThe cargo compartment is the preferred
place to carry objects. The expanded cargo com-
partment (
page 306) should only be used for
items which do not fit in the cargo compartment
alone.
iWhile the cargo net* (page 313) will help
protect you from smaller objects, it cannot pre-
vent the movement of large, heavier objects into
the passenger compartment in an accident, dur-
ing hard braking or sudden maneuvers. Such
items must be properly secured using the cargo
tie-down rings in the cargo compartment floor.

336 Controls in detail
Useful features
Roadside Assistance button•
The Roadside Assistance button• is
located below the center armrest cover.
1Roadside Assistance button•
Open the storage tray (page 319).
Press and hold button1 (for longer
than 2 seconds).
A call to a Mercedes-Benz Roadside
Assistance dispatcher will be initiated.
The button will flash while the call is in
progress. The message
Connecting call will appear in the
multifunction display.When the connection is established, the
message
Call connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and
location (subject to availability of cellular
and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.
Describe the nature of the need for as-
sistance.The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest
Mercedes-Benz Light Truck Center. For
services such as labor and/or towing,
charges may apply. Refer to the Roadside
Assistance Manual for more information.
The following is only available in the USA:

Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.
iWhile the call is connected you can change
to the navigation menu by pressing the NAV
button on the COMAND system unit.

349 Operation
Driving instructions
Driving instructions
Drive sensibly – save fuel
Fuel consumption, to a great extent,
depends on driving habits and operating
conditions.
To save fuel you should:

Keep tires at the recommended infla-
tion pressures.

Remove unnecessary loads.

Remove carriers* when not in use.

Remove the basic cross bars* when
not in use.

Allow engine to warm up under low
load use.

Avoid frequent acceleration and decel-
eration.

Have all maintenance work performed
at the intervals specified in the
Maintenance Booklet and as required
by the Maintenance System. Contact
an authorized Mercedes-Benz Light
Truck Center.Fuel consumption is also increased by
driving in cold weather, in stop-and-go traf-
fic, on short trips and in hilly areas.
Drinking and driving
Pedals
Warning!G
Drinking and driving and/or taking drugs
and driving are a very dangerous combina-
tion. Even a small amount of alcohol or
drugs can affect your reflexes, perceptions
and judgment.
The possibility of a serious or even fatal
accident are greatly increased when you
drink or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Warning!G
Make sure that absolutely no objects are ob-
structing the pedal’s range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure that the pedals still
have sufficient clearance.
During sudden driving or braking maneu-
vers, the objects could get caught between
the pedals. You could then no longer brake
or accelerate. This could lead to accidents
and injury.

365 Operation
Driving instructions
Returning from off-road drivingOff-road driving increases strain on the
vehicle.
We recommend that you inspect the vehi-
cle for possible damage after each off-road
trip. Recognizing any damage and a subse-
quent timely repair reduces the chance of
a possible breakdown or accident later on.
Proceed as follows:

Switch off the off-road driving program
(
page 280) or the LOW RANGE
mode* (
page 203).

Switch off the DSR (page 276).

Set the differential locks* to AUTO
(
page 207).

Lower the vehicle back to a level
suitable for road conditions, e.g. High-
way/High-speed level (
page 281).

Clean all exterior lamps and check for
possible damage.

Clean the front and rear license plate.

Remove excessive dirt from tires,
wheels, wheel housings, and under-
body.
For instance, after driving in mud, clean
the radiator, chassis, engine, brakes,
and wheels from extreme dirt using a
strong jet of water.

Check tires for possible damage.

Inspect vehicle underbody, oil pan,
brake hoses, etc., as well as vehicle un-
derbody for possible damage.

Check for brush or branches caught in
the underbody.

After continued operation in mud,
sand, water or other dirty conditions
clean the brake discs, wheels, brake
pads and check and clean axle joints.

Conduct a brake test.
Warning!G
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possi-
ble damage to your vehicle has occurred,
you should turn on the hazard warning flash-
ers, carefully slow down, and drive with cau-
tion to an area which is a safe distance from
the roadway.
Inspect the tires and under the vehicle for
possible damage. If the vehicle or tires ap-
pear unsafe, have it towed to the nearest
Mercedes-Benz Light Truck Center or tire
dealer for repairs.
Damage to the vehicle may influence driving
comfort and pose the risk of accident to you
and other drivers.
!Brush or branches could increase the possi-
bility of a fire, as well as cut fuel and/or brake
lines, puncture rubber bellows of the axles or
drive shafts.