! Never accelerate before driving into the
water. The bow wave could force water into
the engine and auxiliary equipment, thus
damaging them.
RDrive through the water slowly and at a
constant speed.
RDo not stop vehicle while immersed in
water, and do not shut off the engine.
! Do not open any of the vehicle’s doors
while driving through water. Water could
otherwise enter the vehicle interior and
damage the vehicle’s electronics, as well as
the interior equipment.
RThere is a very high level of driving
resistance in water. The surface is slippery
and may not be firm, making pulling away
in water difficult and dangerous.
RMake sure that only small bow waves are
formed when driving the vehicle through
water.
RClean mud off the tire tread after driving
through water.
RTo dry the brakes, apply pressure to the
brake pedal several times while driving
after leaving the water.
Crossing obstacles
! Obstacles can damage the vehicle
underbody or suspension components. If
possible use the assistance of a second
person outside the vehicle to scout the
path you intend to take and check for
adequate ground clearance when you cross
obstacles with your vehicle. The person
assisting you outside the vehicle should
always be a safe distance away from the
vehicle and positioned so that he or she
cannot get hurt in case of any unexpected
vehicle movement.
After off-road driving or crossing obstacles,
inspect vehicle for any damage, especially
vehicle underbody and suspension
components. Failure to do so can adversely
affect the vehicle’s future performance,
including increased chance of an accident.
When driving over tree stumps, big rocks and
other obstacles, observe the following rules:
RMake sure the off-road driving program
(Y page 155) is switched on.
RAvoid high engine speeds.
RShift automatic transmission into gear
range 1 (Y page 113).
RCheck the vehicle clearance before
crossing obstacles.
RCross obstacles (e.g. tree stumps or big
rocks) very slowly by aiming one of the front
wheels at the center of the obstacle, and
repeat same with the rear wheel.
! Special attention is needed when you
cross obstacles on a steep incline.
The vehicle could slide sideways as a result
of its possible slanted position which in turn
may result in the vehicle tipping or rolling
over.
Driving on sand
GWarning!
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure before continuing your trip. Driving
with reduced tire inflation pressure increases
the risk of losing control of the vehicle and
rolling over.
252Driving instructionsOperation
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When driving on sand, observe the following
rules:
R Vehicles with air suspension program:
Set the raised level ( Y page 156).
R Avoid high engine speeds.
R Shift automatic transmission into a gear
range that is appropriate for the terrain.
R In sandy soil, drive at a steady speed as
conditions permit. This helps overcome the
vehicle rolling resistance and reduce the
likelihood of the vehicle sinking into the
ground.
R Drive in tracks of other vehicles if they are
not too deep and you have sufficient
clearance.
Ruts
A number of off-road tracks or other byways
have deep ruts which can cause the
underbody to come in contact with the
ground.
R Make sure the off-road driving program
( Y page 155) is switched on.
R Vehicles with air suspension program:
Set the raised level ( Y page 156).
! Check that the ruts are not too deep and
your vehicle’s clearance is sufficient.
Otherwise:
R your vehicle may be damaged
R the underbody of the vehicle may come
in contact with the ground and you may
get stuck
R Avoid high engine speeds.
R Shift automatic transmission into gear
range 1 (Y page 113).
R Drive next to the ruts rather than through
them if at all possible.
R If the ruts are too deep to drive in, drive with
one side of the vehicle on the grassy center
strip if the route permits.
Returning from off-road driving GWarning!
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possible
damage to your vehicle has occurred, you
should turn on the hazard warning flashers,
carefully slow down, and drive with caution to
an area which is a safe distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest authorized Mercedes-Benz Center or
tire dealer for repairs.
Off-road driving increases strain on the
vehicle.
We recommend that you inspect the vehicle
for possible damage after each off-road trip.
Recognizing any damage and a subsequent
timely repair reduces the chance of a possible
breakdown or accident later on.
Proceed as follows:
R Switch off the off-road driving program
( Y page 155).
R Switch off the DSR ( Y page 153).
R Vehicles with air suspension program:
Lower the vehicle back to a level suitable
for road conditions, e.g. highway/high-
speed level ( Y page 156).
R Clean all exterior lamps and check for
possible damage.
R Clean the front and rear license plate.
R Remove excessive dirt from tires, wheels,
wheel housings, and underbody.
For instance, after driving in mud, clean the
radiator, chassis, engine, brakes, and
wheels from extreme dirt using a strong jet
of water.
R Check tires for possible damage.
R Inspect vehicle underbody, oil pan, brake
hoses, etc., as well as vehicle underbody
for possible damage.
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The lowest value listed must be selected
when determining how the vehicle and
trailer are loaded.
R The tongue weight at the hitch ball must be
added to the rear axle weight to prevent
exceeding the rear Gross Axle Weight
Rating (GAWR). The GAWR is indicated on
the certification label located on the
driver’s door B-pillar ( Y page 227).
i Mercedes-Benz recommends loading the
trailer in such a manner that it has a tongue
weight between 8 % and 15 % of the GTW.
i The weight of other accessories,
passengers and cargo will reduce the
maximum trailer weight and tongue weight
your vehicle can tow.
Checking weights of vehicle and trailer
R To assure that the towing vehicle and trailer
are in compliance with the maximum
permissible weight limits, have the loaded
rig (towing vehicle including driver,
passengers and cargo, trailer fully loaded)
weighed on a commercial scale.
R Check the vehicle’s front and rear gross
axle weight, the Gross Trailer Weight (GTW)
and tongue weight.
The values as measured must not exceed
the weight limits listed under “Vehicle and
trailer weights and ratings” ( Y page 254).
Coupling a trailer GWarning!
Vehicles with air suspension program: While
you are coupling or decoupling a trailer, make
sure nobody locks or unlocks the vehicle and/
or opens or closes doors or the tailgate.
The vehicle’s level could change and you
could endanger yourself and/or others as a
result.
Make sure that you do not operate the ADS
switch or the vehicle level control system
when coupling/decoupling the trailer.
Observe maximum permitted trailer
dimensions (width and length).
Most states and all Canadian provinces
require
R safety chains between the towing vehicle
and the trailer
The chains should be criss-crossed under
the trailer tongue. They must be attached
to the hitch receiver, and not to the
vehicle’s bumper or axle.
Make sure to leave enough slack in the
chains to permit turning corners.
R a separate brake system at various trailer
weights
R a break-away switch on trailers with a
separate brake system.
Check with your local state laws for specific
requirements.
The switch activates the trailer brakes in
the possible event that the trailer might
separate from the tow vehicle.
! Do not connect a trailer brake system (if
trailer is so equipped) directly to the
vehicle’s hydraulic brake system, as your
vehicle is equipped with antilock brakes. If
you do, neither the vehicle’s brakes nor the
trailer’s brakes will function properly.
i The provided vehicle electrical wiring
harness for trailer towing has a brake signal
wire for hook-up to a brake controller.XMake sure the automatic transmission is in
park position P (Y page 110).XEngage the parking brake for the vehicle
( Y page 107).XStart the engine ( Y page 103).XVehicles with vehicle level control:
Select the highway level ( Y page 156).XVehicles with Adaptive Damping System
(ADS):
Set the ADS to AUTO or COMF
( Y page 156).XTurn off the engine ( Y page 108).Driving instructions255Operation164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 255Z
Avoid riding the brakes, thus overheating
the vehicle and trailer brakes (if so
equipped).
R If the engine coolant rises to an extremely
high temperature when the air conditioning
is on, turn off the air conditioning system.
Engine coolant heat can be additionally
vented by opening the windows, switching
the climate control fan speed to high and
setting the temperature control to the
maximum.
R During a passing maneuver extreme care
must be exercised since your vehicle with
a trailer will require additional passing
distance ahead than when driving without
a trailer.
Because your vehicle and trailer is longer
than your vehicle alone, you will also need
to go much farther ahead of the passed
vehicle before you can return to your lane.
Decoupling a trailer GWarning!
Vehicles with air suspension program: While
you are coupling or decoupling a trailer, make
sure nobody locks or unlocks the vehicle and/
or opens or closes doors or the tailgate.
The vehicle’s level could change and you
could endanger yourself and/or others as a
result.
Make sure that you do not operate the ADS
switch or the vehicle level control system
when coupling/decoupling the trailer.
XMake sure the automatic transmission is in
park position P (Y page 110).XEngage the parking brake for the vehicle
( Y page 107).XStart the engine ( Y page 103).XClose all doors and the tailgate.XEngage the parking brake for the trailer.GWarning!
Vehicles with air suspension program: As
soon as you disconnect the electrical
connection between the trailer and the
vehicle, the vehicle will lower. To help avoid
personal injury, make sure no one is near the
wheel housing or underneath the vehicle
before the electrical connection is
disconnected.
When you decouple the trailer, the vehicle is
temporarily raised because the springs are
relieved of load. Be especially careful during
this process, as you could otherwise injure
yourself and/or others. Make sure that any
persons remaining in the vehicle do not press
the switches for vehicle level control or the
ADS.
XDisconnect all electrical plug connectors.XDecouple the trailer.XMake sure that the trailer coupling is free
of load.XTurn off the engine ( Y page 108).
Driving abroad
If you plan to drive the vehicle outside the U.S.
or Canada, you should request dealer
network information for your destination from
any authorized Mercedes-Benz Center.
Control and operation of radio
transmitter
Safety notes
GWarning!
Please do not forget that your primary
responsibility is to drive the vehicle. A driver’s
attention to the road must always be his/her
primary focus when driving. For your safety
and the safety of others, we recommend that
you pull over to a safe location and stop
before placing or taking a telephone call.
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Safety systemsDisplay messagesPossible causes/consequences and M SolutionsGTele Aid
Inoperativ
eOne or more main functions of the Tele Aid system are
malfunctioning.XHave the Tele Aid system checked at an authorized
Mercedes-Benz Center.+Restraint
Sys.
Malfunctio
n
Service
RequiredThe system is malfunctioning.XDrive with added caution to the nearest authorized
Mercedes-Benz Center and have the system checked
immediately.GWarning!
In the event a malfunction of the SRS is
indicated as outlined above, the SRS may not
be operational.
For your safety, we strongly recommend that
you contact an authorized Mercedes-Benz
Center immediately to have the system
checked. Otherwise the SRS may not be
activated when needed in an accident, which
could result in serious or fatal injury, or it
might deploy unexpectedly and unnecessarily
which could also result in injury.
Driving systems
Display messagesPossible causes/consequences and M SolutionsÁLevel
Selection
Not
PermittedThe selected vehicle level cannot be adjusted, because
R you are driving too fast for the desired vehicle level
R you are towing a trailer
R you are using accessories that are connected to the trailer
power socket, e.g. a bicycle rackXReduce vehicle speed and set the desired vehicle level
again ( Y page 156).XObserve the notes on trailer towing ( Y page 254).ÁMalfunctio
nThe air suspension is malfunctioning.XDo not drive faster than 50 mph (80 km/h).XHave the system checked at an authorized Mercedes-Benz
Center.Vehicle status messages in the multifunction display285Practical hints164_AKB; 7; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:07:36+02:00 - Seite 285Z
GWarning!
The dimensions of the spare wheel are
different from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Contact the nearest authorized Mercedes-
Benz Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than one
spare wheel mounted.
Do not switch off the ESP ®
when a spare
wheel is mounted.
GWarning!
Vehicles with air suspension program:
Do not open or close any doors or the tailgate
while mounting a spare wheel. The vehicle
could rise or lower to a previously selected
level. You or others could be injured as a
result.
Preparing the vehicle
XVehicles with air suspension program:
Make sure the vehicle level is set to
highway level ( Y page 155).XWhenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.XTurn on the hazard warning flasher.XTurn the steering wheel so that the front
wheels are in a straight-ahead position.XEngage the parking brake.XShift the automatic transmission into park
position P.XTurn off the engine.XRemove the SmartKey from the starter
switch.
or
XVehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door can then be closed again.
Open doors only when conditions are safe
to do so.XVehicles with KEYLESS-GO: Remove the
KEYLESS-GO start/stop button from the
starter switch.XHave any passenger exit the vehicle at a
safe distance from the roadway. Open
doors only when conditions are safe to do
so.
i Vehicles with spare wheel with collapsible
tire or TIREFIT:
Only use the power outlet in the second-
row footwell for electric air pump
operation.
You can use the power outlet even when
the ignition is switched off, e.g. in order to
inflate the collapsible tire.
An emergency shut-off feature is designed
to prevent the vehicle’s on-board voltage
from dropping below a minimum level. If
the on-board voltage drops to this
minimum level, the power outlets are
switched off automatically to help preserve
engine starting power.
Sealing tires with TIREFIT
Small tire punctures, particularly those in the
tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient temperatures
down to -4‡ (-20†).
GWarning!
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
320Flat tirePractical hints
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portfolio. You may otherwise not recognize
potential danger.
! To prevent damage during transport, do
not tie down vehicle by its chassis or
suspension parts.
If circumstances do not permit the
recommended towing methods, the vehicle
may be towed with all wheels on the ground
only so far as necessary to have the vehicle
moved to a safe location where the
recommended towing methods can be
employed.
! Before towing the vehicle observe the
following instructions:
RDo not tow-start the vehicle. You could
otherwise seriously damage the
automatic transmission which is not
covered by the Mercedes-Benz Limited
Warranty.
RDo not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
RTowing of the vehicle should only be
done using the properly installed towing
eye bolt. Never attach a tow cable, tow
rope or tow rod to the vehicle chassis,
frame or suspension parts.
GWarning!
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
! Avoid pulling the vehicle abruptly or
diagonally, since it could result in damage
to the chassis alignment.
! Do not use the towing eye bolt for
recovery, as this could damage the vehicle.
If in doubt, recover the vehicle with a crane.
iIf the battery is disconnected or
discharged
Rthe SmartKey will not turn in the starter
switch
Rthe automatic transmission will remain in
park position P
For more information see “Battery”
(Y page 334) or “Jump starting”
(Y page 336).
Installing towing eye bolt
Depending on whether you are towing a
vehicle or you are being towed, the towing eye
bolt can be screwed into threaded holes
which are located behind covers on each
bumper.
The towing eye bolt is supplied with the
vehicle tool kit, located in the cargo
compartment underneath the cargo
compartment floor (Y page 268).
XTake the towing eye bolt out of the space
underneath the cargo compartment floor.
Removing cover in front bumper
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Vehicle specification ML 350 BlueTEC
4MATIC (164.125)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.Engine ΜL 350 BlueTEC 4MATICEngine, type642Mode of operationDiesel 4-stroke engineNo. of cylinders6Bore3.27 in (83.00 mm)Stroke3.62 in (92.00 mm)Total piston
displacement182.3 cu in
(2 987 cm 3
)Compression
ratio16.5:1Output acc. to
SAE J 1349210 hp/3 400 rpm
(157 kW/3 400 rpm)Maximum torque
acc. to SAE J 1349400 lb-ft/
1 600 - 2 400 rpm
(543 Nm/
1 600 - 2 400 rpm)Maximum engine
speed4 500 rpmFiring order1-4-2-5-3-6Poly-V-belt2 035 mmElectrical system
ΜL 350 BlueTEC 4MATICAlternator14 V/220 AStarter motor12 V/2.0 kWBattery12 V/95 AhMain dimensions
ΜL 350 BlueTEC 4MATICOverall vehicle
length188.5 in (4 788 mm)Overall vehicle
width 3483.6 in (2
124 mm)Overall vehicle
height71.5 in (1 815 mm) 3569.8 - 73.0 in
(1 774 - 1 854 mm) 36Wheelbase114.8 in (2
915 mm)Track, front63.7 in (1 619 mm)Track, rear63.8 in (1 621 mm)Ground clearance8.3 in (210 mm) 357.3 - 10.3 in
(186 - 261 mm) 36Turning circle39.0 ft (11.6 m)Weights ΜL 350 BlueTEC 4MATICRoof loadmax. 220 lb (100 kg)
Vehicle specification ML 350
(164.156)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
Engine ΜL 350Engine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders634 Exterior rear view mirrors folded out.
35 Vehicles with steel suspension.
36 Depending on the set vehicle level (vehicles with air suspension program).348Vehicle specification ML 350 (164.156)Technical data
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