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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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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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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Vehicle status messages in the
multifunction display
Notes
Warning and malfunction messages appear in
the multifunction display located in the
instrument cluster.
Certain warning and malfunction messages
are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in this
Supplemental Operating Instructions
Booklet.
Selecting the Vehicle status message
memory menu in the control system displays
both cleared and uncleared messages.
High-priority messages appear in the
multifunction display in red color.
Certain messages of high priority cannot be
cleared from the multifunction display using
the reset button or button &, *,
U or V on the multifunction steering
wheel.
Other messages of high priority and
messages of less immediate priority can be
cleared from the multifunction display using
the reset button or button &, *,
U or V on the multifunction steering
wheel. They are then stored in the Vehicle
status message memory menu. Remember
that clearing a message will only make the
message disappear. Clearing a message will
not correct the condition that caused the
message to appear. G
Warning!
All categories of messages contain important
information which should be taken note of
and, where a malfunction is indicated,
addressed as soon as possible at an
authorized Mercedes-Benz Center.
Failure to repair the condition noted may
cause
damage not covered by the Mercedes-
Benz Limited Warranty, or result in property
damage or personal injury. G
Warning!
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicator lamps
R malfunction/warning messages
R failure of any systems
Driving characteristics may be impaired.
If
you must continue to drive, do so with added
caution. Contact an authorized Mercedes-
Benz Center as soon as possible.
On the pages that follow, you will find a
compilation of the warning and malfunction
messages specific to the HYBRID system. For
all other warning and malfunction messages,
refer to the Operator’s Manual. 24
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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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Vehicle specification ML 450 HYBRID
(164.195)
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 450 HYBRID
Engine, type
272
Mode of operation
4-stroke engine,
gasoline injection No. of cylinders
6
Bore
3.66 in (92.90 mm)
Stroke
3.39 in (86.00 mm)
Total piston
displacement
213.5 cu in
(3 498 cm 3
) Compression
ratio
11.5:1
Output acc. to
SAE J 1349
1 275 hp/6
000 rpm
(205 kW/6 000 rpm) Maximum torque
acc.
to SAE J 1349 258 lb-ft/
3 000 - 5 500
(350 Nm/
3 000 - 5 500 rpm) Maximum engine
speed
6 000 rpm
Firing order
1-4-3-6-2-5
Poly-V-belt
2 398 mm
Hybrid ΜL 450 HYBRID
Type
Full hybrid
Concept
Two mode
Output EMA
83 hp
(62 kW) Hybrid ΜL 450 HYBRID
Output EMB
80 hp
(60 kW) Maximum torque
EMA
173 lb-ft (235 Nm)
Maximum torque
EMB
192 lb-ft (260 Nm)
System power
335 hp (250 kW)
381 lb-ft (517 Nm) Electrical system ΜL 450 HYBRID
High-voltage
battery
288 V/45 kW
Battery
12 V/70 Ah
Spark plugs, type
Bosch Y 7 MPP33
Spark plugs,
electrode gap
0.031 in (0.8 mm)
Spark plugs,
tightening torque
15 - 18 lb-ft
(20 - 25 Nm) Main dimensions ΜL 450 HYBRID
Overall vehicle
length
188.5 in (4
788 mm) Overall vehicle
width
2 83.6 in (2
124 mm) Overall vehicle
height
69.8 - 73.0 in
(1 774 - 1
854 mm) Wheelbase
114.8 in (2
915 mm) Track, front
64.7 in (1
644 mm) Track, rear
64.8 in (1
647 mm) Ground clearance
7.3 - 10.3 in
(186 - 261 mm)
Turning circle
39.0 ft (11.6 m)
1
Premium fuel required. Performance may vary with fuel octane rating.
2 Exterior rear view mirrors folded out. 36
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Weights ΜL 450 HYBRID
Roof load
max. 220 lb (100 kg)
Rims and tires
i The ML 450 HYBRID does not have a spare wheel.
Vehicles equipped with 19" wheels come with MOExtended tires. MOExtended tires have
run-flat
characteristics. The 17" and 18" wheels listed in this section do not have tires with
such run-flat characteristics. When replacing factory-equipped 19" wheels with 17" or 18"
wheels, retrofitting with TIREFIT is strongly recommended.
For information on MOExtended tires and TIREFIT, refer to the Operator’s Manual. Model ML 450 HYBRID
17" wheels Rims (light alloy)
Wheel offset
7.5 J x 17 H2
2.21 in (56 mm)
All-season tires
3 235/65 R17 104H M+S
Winter tires
3,4 235/65 R17 104H M+S
i Model ML 450 HYBRID
18" wheels Rims (light alloy)
Wheel offset
8 J x 18 H2
2.36 in (60 mm)
All-terrain tires
3,4 255/55 R18 105H M+S
Model ML 450 HYBRID
19" wheels Rims (light alloy)
Wheel offset
8 J x 19 H2
2.36 in (60 mm)
All-season tires
3,5 255/50 R19 107H XL (Extra Load) M+S
MOExtended
Winter tires
3,4,5 255/50 R19 107H XL (Extra Load) M+S
i
MOExtended 3
Radial-ply tires.
4 Not available as factory equipment.
5 Must
be used in conjunction with Advanced Tire Pressure Monitoring System (U.S. vehicles) or tire pressure
loss warning system (Canada vehicles) only. Technical data
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