2010 MERCEDES-BENZ ML450 HYBRID catalytic converter

G
Warning!
When the READY indicator in the instrument
cluster is on while the combustion engine is
off, the combustion engine has been turned
off automatically. All vehicle systems
continue
to be active as long as the ignition is
switched on. When you open the driver’s door
and unbuckle the seat belt with the READY
indicator on, while the automatic
transmission is in position N or P, the
combustion engine starts automatically.
Therefore, always do the following before
leaving the vehicle:
R Engage the parking brake.
R Shift the automatic transmission into park
position P.
R Switch off the ignition. The READY indicator
goes out.
The combustion engine turns off
automatically when the system determines
that it is not needed. The combustion engine
does not turn off automatically when
R the operation strategy requires that the
combustion engine is running
R the self-diagnosis of the combustion
engine management is still running
R the combustion engine is running below or
above the operating temperature
R the catalytic converter is running below the
operating temperature
R the vehicle is being driven up an extremely
steep incline
R the hybrid components are below or above
their operating temperature
R the accelerator pedal is being depressed to
hard
R the vehicle speed is above 34 mph
(55 km/h)
R the automatic transmission is
malfunctioning R
the hood is open
R the high-voltage battery is not charged
sufficiently Driving off
G
Warning!
When your vehicle is in electric drive mode the
engine produces significantly lower noise
levels. Other motorists or pedestriants,
especially those who are visually or hearing
impaired,

may be unable to hear your vehicle
while it is in motion. This is particularly true
when driving at lower speeds and during
parking maneuvers. At all times, it is the
responsibility of the driver to be aware of their
surroundings, especially in these low speed
situtations. Otherwise other road users could
be seriously or fatally injured.
Depress the brake pedal and shift the
automatic transmission into drive position D
or reverse gear R. If the message Depress
brake to shift out of P. appears in the
multifunction display:
X Depress the brake pedal with somewhat
greater force and select the desired
transmission position.
i Read and observe messages that may
appear in the multifunction display
(Y page 24).
For

more information on driving off, refer to
the Operator’s Manual. Driving
Driving tips R
Think ahead and keep sufficient distance.
R Avoid frequent and rapid acceleration as
well as abrupt braking. Controls in detail
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Refueling
G
Warning!
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flames or smoking
materials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and any skin or clothing
contact. Extinguish all smoking materials.
Direct skin contact with fuels and the
inhalation of fuel vapors are damaging your
health. G
Warning!
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge. This could cause the gas to
spray back out when removing the fuel pump
nozzle, which could cause personal injury.
! Never refuel vehicles with gasoline engine
with diesel fuel. Even small amounts of
diesel fuel will damage the fuel system and
engine. Damage resulting from the use of
non-approved fuels or fuel additives or
resulting from mixing gasoline with diesel
fuel is not covered by the Mercedes-Benz
Limited Warranty.
! If you have accidentally filled the tank
with incorrect or non-approved fuel, do not
switch on the ignition. Otherwise the
incorrect or non-approved fuel will get into
the fuel lines. The fuel system must be
drained completely. Contact an authorized
Mercedes-Benz Center to have the fuel
system drained completely.
! To prevent damage to the catalytic
converters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly. Otherwise, excessive unburned fuel may
reach the catalytic converter, causing it to
overheat and potentially start a fire.
i Only use premium unleaded gasoline with
a minimum Posted Octane Rating of 91
(average of 96 RON/86 MON).
Information on gasoline quality can
normally be found on the fuel pump. Please
contact gas station personnel in case
labels on the pump cannot be found.
For more information on gasoline, see
Operator's Manual, contact an authorized
Mercedes-Benz Center, or visit
www.mbusa.com (USA only).
X Bring the vehicle to a standstill.
X Engage the parking brake.
X Shift the automatic transmission into park
position P.
X Switch off the ignition.
The READY indicator (Y page 16) in the
instrument cluster goes out.
X Remove the SmartKey from the starter
switch or remove the SmartKey with
KEYLESS-GO from the vehicle.
i Before refueling your vehicle its fuel tank
system needs to be depressurized. X
Press fuel filler flap switch :.
Indicator lamp ; comes on as the fuel filler
flap is unlocked. 20
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Charge battery in accordance with the
separate instructions for the accessory
battery charger.
X Open the hood, see Operators' Manual.
X Follow the instructions in the separate
operating instructions of the charge unit. X
Flip up cover 1 of the positive terminal in
direction of arrow.
X Connect the positive terminal clamp of the
charge unit with positive terminal 2.
X Slide cover = from the negative terminal
in direction of arrow.
X Connect the negative terminal clip of the
charge unit with negative terminal ?.
X Charge the 12-volt battery.
Disconnecting the charge unit X
After the combustion engine has been
started, disconnect the charge unit. Follow
the instructions in the separate operating
instructions of the charge unit.
X Close the hood.
X Drive the vehicle for some time in order to
charge the 12-volt battery. Jump starting
When the 12-volt battery or the high-voltage
battery is discharged, the combustion engine
can be started with jumper cables and the
battery of another vehicle. Observe the following:
R
Jump starting should only be performed
when the combustion engine and the
catalytic converter are cold.
R Do not jump start if the battery is frozen.
Let the battery thaw out first.
R Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a more powerful battery could damage
the vehicle’s electrical system, which is not
covered by the Mercedes-Benz Limited
Warranty.
R Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R 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.
R Should the battery be drained completely,
let the donating power source charge the
vehicle for several minutes before
reattempting the starting process.
i Jumper cables and additional information
on jump starting are available at any
authorized Mercedes-Benz Center.
! Jump starting should only be performed
using the jump-start terminals located in
the engine compartment.
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
unsuccessful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and may
present a fire risk.
Make sure the jumper cables do not have
loose or missing insulation. Practical hints
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