ECU MERCEDES-BENZ ML450 HYBRID 2010 W164 Owner's Manual

Index
....................................................... 4Introduction ...........................................
7Safety and security
...............................8Controls in detail
................................. 11Operation .............................................
20Practical hints .....................................
24Technical data .....................................
36 Contents
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R
RBS (Recuperative Brake
System) ............................................ 9, 11
Malfunction ................................
29, 30
Warning lamp ............................. 13, 29
READY indicator ............................ 13, 16
Rear axle oil ......................................... 38
Recuperation statistics (COMAND) ...15
Refueling .............................................. 20
Research Octane Number see RON
Rims ...................................................... 37
Risk of fire
see Safety notes S
Safety see Operating safety


Safety notes ........................................... 8
Silent-Start mode ................................ 16
SRS (Supplemental Restraint System)
Warning lamp ................................... 31
Starting
see Combustion engine
Submenu
Resetting values (COMAND) ............ 16T
Technical data Capacities fuels, coolants,
lubricants etc. .................................. 38
Coolant ............................................ 39
Engine oils ....................................... 39
Rims and tires .................................. 37
Vehicle specification ML 450
HYBRID ............................................ 36
Washer and headlamp cleaning
system ............................................. 39
Tires ...................................................... 37U
Unlocking
Fuel filler flap

................................... 20 V
Vehicle
Disuse .............................................. 32
Vehicle fire
see Safety notes


Vehicle modifications ........................... 7
Vehicle specification
ML 450 HYBRID ............................... 36 W
Warning labels ....................................... 8
Wheels, sizes ....................................... 37
Winter tires .......................................... 376
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Safety notes
Warning labels
G
Warning!
Various warning labels are attached to your
vehicle. These warning labels are intended to
make you and others aware of various risks.
Do not remove any of these warning labels
unless explicitly instructed to do so by
information on the label itself. Removing
warning labels may cause you and others to
be unaware of certain risks which may result
in an accident and/or personal injury.
Danger of electric shock The components of the HYBRID system are
indicated by yellow warning labels to make
you aware of high voltage. High-voltage
cables are orange-colored.
G
Warning!
The HYBRID system is energized by high
voltage.
You could be seriously or even fatally injured
when you
R tamper with components or high-voltage
cables of the HYBRID system
R touch components or high-voltage cables
of the HYBRID system after the vehicle has
been involved in an accident
R touch damaged components of the HYBRID
system
Do not remove covers of components of the
HYBRID system that carry the yellow warning label. Do not tamper with any components or
with the orange high-voltage cables of the
HYBRID system.
Engine compartment
Before opening the hood do the following:
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.
X Observe the safety notes on the danger of
electric shock in this manual.
X Observe the safety notes regarding the
hood in the Operator’s Manual. Automatic HYBRID system switch-off
The HYBRID system switches off
automatically if
R the Supplemental Restraint System (SRS)
activates the restraint systems in an
accident
R a short circuit in the HYBRID system is
detected
R a plug connection of the HYBRID system is
disconnected
These measures help to prevent you from
coming into contact with high voltage. High-voltage battery
G
Warning!
The high-voltage battery of the HYBRID
system is located under the cargo
compartment. When the pressure inside the
high-voltage battery exceeds a certain value, 8
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for example in case of a vehicle fire,
inflammable gas will escape via a duct. The
inflammable gas escapes to an area
underneath
the vehicles cargo compartment.
This prevents the high-voltage battery from
exploding.
Stay away from this area of the vehicle. Driving safety systems
ABS (Antilock Brake System)
Braking When the ABS engages during braking, the
ABS/ESP
®
warning lamp d in the
instrument cluster

(Y page 13) flashes. The
brake pedal will pulsate only in certain
situations, for example on a slippery road.
i For more information on the ABS, refer to
the Operator's Manual. RBS (Recuperative Brake System)
The RBS controls braking by blending the
vehicles friction brakes with the hybrid
transmissions recuperative energy function.
The RBS system must perform a self-test
when the ignition is switched on.
X Make sure the automatic transmission is in
park position P.
X Switch on the ignition.
X Apply the brake pedal fully and release it.
The self-test of the RBS is completed.
During the self-test of the RBS, less brake
pedal
pressure than usual is required and the
brake pedal travel is longer. When you release
the brake pedal, the brake pedal travel is as
usual again.
For more information on the RBS, see
(Y page 11). G
Warning!
If the RBS malfunctions, the yellow RBS
warning lamp é and/or the red brake warning lamp
$ (USA only) or J
(Canada
only) in the instrument cluster comes
on. Read and observe the messages in the
multifunction display that may appear. Find
the subentry “Malfunction” of the entry “RBS
(Recuperative Brake System)” in the index of
this manual and follow the steps described in
that section. G
Warning!
If the RBS malfunctions, less brake pedal
pressure than usual may be required and the
brake pedal travel may be longer. The brake
system still functions with full effectiveness.
If required, you have to depress the brake
pedal further. Adapt your speed and driving
accordingly. G
Warning!
Have work on the RBS, e.g. brake pad
replacement, carried out by qualified
technicians only.
When working on the RBS, certain
precautions

must be taken, e.g. when putting
the brake system back into service.
Contact an authorized Mercedes-Benz
Center. Service conducted by qualified
technicians is required particularly for safety-
relevant work and work on safety-relevant
systems such as the RBS.
i For more information on the braking
system and for driving instructions, refer to
the Operator’s Manual. BAS (Brake Assist System)
If you apply the brakes very quickly, the RBS
provides full brake boost as fast as possible.
In doing so, less brake pedal pressure than
usual

is required and the brake pedal travel is
longer.
X Apply continuous full braking pressure until
the emergency braking situation is over.
The ABS will prevent the wheels from
locking. Safety and security
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i
For more information on the BAS, refer to
the Operator’s Manual. Driving systems
Cruise control
When the cruise control brakes the vehicle,
the brake pedal is not depressed.
i For more information on the cruise
control, refer to the Operator’s Manual. 10
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Introduction
The HYBRID technology combines an
economical combustion engine with a
powerful hybrid transmission. The HYBRID
system selects the most efficient operating
mode
for each driving situation automatically.
You can drive the vehicle in the usual manner.
The HYBRID system turns the combustion
engine off as often as possible in order to save
fuel.
Depending on various conditions such as the
charging level of the high-voltage battery or
the operating temperature, the vehicle can
run on electrical energy alone. These
conditions as well as the degree to which the
driver accelerates determine the vehicle
speed and range that can be achieved for all-
electrical driving. 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. Driving off and accelerating consumes the
most energy. Thus, the hybrid transmission
supports the combustion engine with the
energy

stored in the high-voltage battery. The
energy is also used for electrical driving, for
operation of the electric compressor of the
cooling system and to support the 12-volt on-
board power supply. The hybrid drive thereby
contributes significantly to the fuel economy
of your vehicle.
For information on driving with HYBRID, see
(Y page 16).
The current operating mode of the HYBRID
system can be displayed in the instrument
cluster (Y page 13) and in the COMAND
display ( Y page 13).
The COMAND can also display a chart of the
fuel consumption and the electric power that
has been generated ( Y page 15). RBS (Recuperative Brake System)
With
the RBS activated (Y page 9), the hybrid
transmission functions as a generator when
coasting and braking. HYBRID converts the
energy of movement into electric power and
stores it in the high-voltage battery. The high-
voltage battery does not require additional
charging by other means. Controls in detail
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Instrument cluster
Function Page
:
$ Brake warning lamp,
USA only
29
;
d ABS/ESP
®
warning
lamp 9,
29 =
J Brake warning lamp,
Canada only
29
?
Multifunction display
with:
Charging level high-voltage
battery
14
A
é Recuperative Brake
System (RBS) warning lamp
29
B
+ Supplemental
Restraint System (SRS)
indicator lamp
31
C
; Engine malfunction
indicator lamp, Canada only
21
D
! Engine malfunction
indicator lamp, USA only
21 Function Page
E
Power gauge 14
F
Multifunction display
with:
Automatic transmission
program mode indicator
18
READY indicator for the
HYBRID system
16
Control system and COMAND
i For information on the instrument cluster
control system and COMAND operation,
refer to the Operator’s Manual.
The current operating mode of the HYBRID
system can be displayed in the multifunction
display and in the COMAND.
The COMAND can also display a chart of the
fuel consumption and the electric power that
has been generated ( Y page 15). Controls in detail
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Selecting submenu in the
multifunction display
Use the buttons on the multifunction steering
wheel.
X Press button V or U repeatedly until
the standard display appears.
X Press button & or * to select the
HYBRID menu. Selecting submenu in the COMAND
display
X Select System Q Hybrid Q Energy
Flow. COMAND display examples
Example illustration: Operating mode display
1
Combustion engine
2 Hybrid transmission
3 High-voltage battery
4 Charging condition of high-voltage
battery in percent
5 Flow of energy
The HYBRID components that are currently
active are highlighted in the COMAND
display. Multifunction display Power gauge COMAND display
Recuperation – the hybrid transmission functions as a generator, for example when
coasting or braking. The kinetic energy of the vehicle is converted into electric power and
stored in the high-voltage battery.
The multifunction display indicates charging of the high-voltage battery by an arrow pointing
upwards. The pointer of the power gauge moves into the charge section. The COMAND
display indicates the flow of energy by green arrows.14
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What to do if ...
Lamps in instrument cluster
Problem
Possible causes/consequences and
X Solutionsé
The yellow RBS
(Recuperative Brake
System) warning lamp
is on while the
combustion engine is
running. In addition, an
acoustic warning may
sound.
The RBS is malfunctioning.
Risk of accident!
The combustion engine may not turn off automatically.
X
Read and observe messages that may appear in the
multifunction display
(Y page 24).
X Continue driving with added caution.
X Contact an authorized Mercedes-Benz Center. $
(USA only)
J
(Canada only)
The red brake warning
lamp is on while the
combustion engine is
running. An additional
acoustic warning
sounds.
The RBS is malfunctioning.
Risk of accident!
Brake pedal travel may be longer than usual and the braking
behavior of the vehicle may change.
X
Stop the vehicle in a safe location or as soon as it is safe to do
so. Do not continue to drive.
X Contact an authorized Mercedes-Benz Center immediately.
X Read and observe messages that may appear in the
multifunction display

(Y page 24), see Operator’s Manual. The brake fluid level in the brake fluid reservoir is too low.
Risk of accident!
X
Stop the vehicle in a safe location or as soon as it is safe to do
so. Do not continue to drive.
X Contact an authorized Mercedes-Benz Center immediately.
X Read and observe messages that may appear in the
multifunction display

(Y page 24), see Operator’s Manual.
Do not add brake fluid. This will not solve the problem. d
The yellow ABS/ESP
®
warning lamp flashes
while driving. The ESP
®
,
the 4-ETS, or the ABS has come into operation because
of detected traction loss for at least one wheel.
Risk of accident!
The cruise control is deactivated.
X When driving off, apply as little throttle as possible.
X While driving, ease up on the accelerator pedal.
X Adapt your speed and driving to the prevailing road and weather
conditions.
X Do not switch off the ESP ®
.
Exceptions, see Operator’s Manual. Practical hints
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Problem
Possible causes/consequences and
X SolutionsThe warning and
indicator lamps in the
instrument cluster fail
to come on when
switching on the
ignition. The 12-volt battery and/or the high-voltage battery are
discharged.
X
Charge the 12-volt battery (Y page 32).
or
X Get a jump start (Y page 33).
or
X Contact an authorized Mercedes-Benz Center. Combustion engine
Problem
Possible causes/consequences and
X SolutionsThe combustion engine
cannot be started. The
warning and indicator
lamps
in the instrument
cluster come on when
switching the ignition. The high-voltage battery is discharged.
The discharged high-voltage battery is being charged with the
ignition switched on while the vehicle is being jump started
(Y page 33).
X
Read and observe messages that may appear in the
multifunction display

(Y page 24). The combustion engine
cannot be started. The
multifunction display
does not display any
messages. The self-diagnosis has not been completed yet or the HYBRID
system is malfunctioning.
X
Switch off the ignition and switch it back on.
X Try to start the combustion engine once more.
X If the combustion engine cannot be started: Contact an
authorized Mercedes-Benz Center. RBS (Recuperative Brake System)
Problem
Possible causes/consequences and
X SolutionsLess brake pedal
pressure is required
and the brake pedal
travel is longer than
usual.
X
Apply the brake pedal fully and release it.
The required brake pedal pressure and the brake pedal travel
are back to normal. The RBS is malfunctioning.
Risk of accident!
X
Read and observe the messages in the multifunction display
(Y

page 24) and the notes on warning and indicator lamps in the
instrument cluster (Y page 29). 30
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