
A
ABS (Antilock Brake System)  ............... 9
Warning lamp .............................
13, 29
Anticorrosion/antifreeze  ....................39
Antilock Brake System see ABS                                                    
Automatic shift program  ....................18
Automatic transmission  Automatic shift program  ..................18
Messages in the multifunction
display  ............................................. 25
Program mode
indicator .................................... 13, 19
Program mode selector switch
(automatic shift program)  ................18
Axle oils  ................................................ 38B
BAS (Brake Assist System) ................... 9
Battery Charging  .......................................... 32
Charging condition high-voltage
battery (COMAND) ........................... 14
Jump starting ................................... 33
Messages in the multifunction
display
 ............................................. 26
Safety notes ..................................... 32
see High-voltage battery                          
Brake Assist System
see BAS                                                    
Brakes  
Warning
lamp  .......................................... 13, 29
Brake system
see RBS                                                     C
Capacities and recommended
fuel/lubricants  .................................... 38
Charging condition high-voltage
battery (COMAND)  ...............................
14
COMAND  
Charging condition high-voltage
battery ............................................. 14
Fuel consumption ............................ 15Generated electric power 
................15
Overview  .......................................... 13
Combustion engine  
Malfunction ......................................
30
Starting ............................................ 16
Consumption statistics (COMAND)  ...15
Control system  Overview  .......................................... 13
Coolant  
Anticorrosion/antifreeze ................. 39
Capacities ........................................ 38
Cruise control  ...................................... 10 D
Displays  
Charging condition high-voltage
battery (COMAND) ........................... 14
Messages in the multifunction
display
 ............................................. 24
Driving and parking 
Safety notes ..................................... 16
Driving off  ............................................ 17
Driving safety systems  ABS .................................................... 9
BAS .................................................... 9
RBS .................................................... 9
Driving systems  
Cruise control .................................. 10
Driving tips  .......................................... 17 E
Engine  .............................................
16, 30
Malfunction indicator
lamp ................................................. 13
see Combustion engine                           
Engine oil  
Adding ............................................. 22
Checking level  ................................. 21
Enviromental protection  ....................... 7
ESP ®
 (Electronic Stability Program)  
Warning lamp ............................. 13, 29 F
Fluids  
Automatic transmission fluid ........... 38
Brake fluid  ....................................... 384
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Capacities ........................................
38
Engine coolant  ................................. 38
Engine oil ......................................... 38
Power steering fluid ......................... 38
Washer and headlamp cleaning
system ............................................. 39
Front axle oil  ........................................ 38
Fuel  ....................................................... 20
Capacity, fuel tank ........................... 38
Fuel filler flap and cap ...................... 21
Premium unleaded gasoline  .............38
Fuel filler flap  ....................................... 21
Opening manually  ............................ 31
Unlocking ......................................... 20
Fuel filler flap switch  ..........................20
Fuels, coolants, lubricants etc.  
Capacities ........................................ 38
Fuel tank 
Capacity ........................................... 38
Fuel filler flap and cap ...................... 21 G
Gasoline see Fuel 
                                                    H
High voltage see Safety notes 
                                     
High-voltage battery  ............................. 8
Charging condition (COMAND) ........ 14
Exhaustive discharge  .......................32
Messages in the multifunction
display  ............................................. 26
HYBRID system 
Automatic switch-off .................... 8, 31
Overview  .......................................... 12
READY indicator ......................... 13, 16 I
Indicator and warning lamp  SRS .................................................. 31
Indicator lamp
see Lamps, indicator and warning 
          
Instrument cluster  .............................. 13
Lamps .............................................. 29
Introduction ......................................... 11 J
Jump starting  ....................................... 33 L
Lamp see Lamps, indicator and warning 
          
Lamps, indicator and warning  ............ 29
ABS/ESP ®
 ................................. 13, 29
Brakes
(red)  ........................................... 13, 29
Instrument cluster  .....................13, 29
RBS ............................................ 13, 29 M
Message see Lamps, indicator and warning 
          
Motor Octane Number
see MON                                                  
Multifunction display 
Symbol messages ............................ 26
Text messages ................................. 25
Vehicle status messages ................. 24
Multifunction display messages  
Automatic transmission ................... 25
Battery ....................................... 26, 28
Display malfunction  .........................24
Gas cap ............................................ 27
Power steering ................................. 27 O
Oil level see Engine oil, Checking level
                  
Operating safety  .................................... 7 P
Parking ................................................. 18
Power gauge  .................................. 13, 14
Power steering  
Messages in the multifunction
display
 ............................................. 27
Program mode selector switch  
Automatic shift program  ..................18 Index
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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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Multifunction display Power gauge COMAND display
Boost effect – the hybrid transmission supports the combustion engine when driving off
and when accelerating.
The multifunction display indicates discharging of the high-voltage battery by an arrow
pointing downwards. The pointer of the power gauge moves into the boost section. The
COMAND display indicates the flow of energy by white or red arrows (depending on the
acceleration).
Multifunction display Power gauge COMAND display
Electric driving
 – the hybrid transmission powers the vehicle, up to a maximum speed of
30 mph (50 km/h).
The multifunction display indicates discharging of the high-voltage battery by an arrow
pointing downwards. The pointer of the power gauge moves within the range of its economy
section. The COMAND display indicates the flow of energy by green arrows. i
Maximum Hybrid battery life is ensured by
the electronic charge control maintaining a
charge level between 25 % and 80 %. This
is the ideal range for the Hybrid battery and
therefore the charge level displayed in the
instrument cluster or COMAND may not
approach 100 %. This is intentional and
does not indicate a malfunction of the
Hybrid battery or the charging
components. Displaying fuel consumption and 
generated electric power 
The COMAND display indicates the fuel
consumption and the generated electric
power for the last 15 minutes of driving.
X Select  System Q Hybrid Q
Consumption. Controls in detail
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1
Fuel consumption
; Average fuel consumption  From Start as
shown in the multifunction display of the
instrument cluster in the  Trip computer
menu.
= Generated electric power
Each bar in the chart represents the average
value for 1 minute.
Resetting values  The values are reset together when resetting
the trip computer in the 
From Start
submenu. Refer to the Operator’s Manual. Driving and parking
Safety notes
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. G
Warning!
Make sure absolutely no objects are
obstructing the pedals’ range of movement. Keep the driver’s footwell clear of all
obstacles. If there are any floormats or
carpets in the footwell, make sure the pedals
still have sufficient clearance.
During sudden driving or braking maneuvers
the objects could get caught between or
under the pedals. You could then no longer
brake or accelerate. This could lead to
accidents and injury.
Starting the engine
:
READY indicator  
X Switch on the ignition.
X Apply the brake pedal fully and release it.
The self-test of the RBS is completed. For
more information on the RBS, see
(Y page 9).
X Observe the notes on “Starting the engine”
in the Operator’s Manual and start the
combustion engine.
Silent-Start mode 
The combustion engine may not start each
time you start the vehicle with the SmartKey
or with KEYLESS-GO.
Depending on various conditions such as the
charging level of the high-voltage battery, you
may drive off with electrical energy alone. The
vehicle is then in Silent-Start mode. The
READY indicator  : will then indicate that the
HYBRID systems are operational. 16
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Symbol messages 
Display messages
Possible causes/consequences and 
X Solutionsc Charging 
Hybrid 
Battery 
Please 
Wait The high-voltage battery is discharged. You have switched on
the 
ignition while the 12-volt battery was being charged with
an approved charge unit or while jump starting the vehicle.
The high-voltage battery is being charged via the voltage
transformer automatically. Depending on the state of the
high-voltage battery's discharge, the charging procedure may
take up to 60 minutes. The message Engine Can Now Be 
Started appears in the multifunction display, after the
system became adequately charged to start the combustion
engine (Y page 25).
If the display message  Engine Can Now Be Started does
not appear after about an hour:
X Try to start the combustion engine.
X If the combustion engine cannot be started: Contact an
authorized Mercedes-Benz Center. d Malfunctio
n The HYBRID system is malfunctioning.
X
Have the system checked at an authorized Mercedes-Benz
Center. d Stop car, 
switch 
engine 
off. The HYBRID system is malfunctioning. In addition an acoustic
warning sounds.
X
Stop the vehicle in a safe location as soon as possible.
X Engage the parking brake.
X Switch off the ignition.
X Wait at least 60 seconds for the system to complete the
necessary check cycles before you start the combustion
engine again.
X If the combustion engine cannot be started again contact
an authorized Mercedes-Benz Center. c Malfunctio
n The high-voltage system is malfunctioning. In addition an
acoustic warning sounds.
X
Contact an authorized Mercedes-Benz Center immediately. 26
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