Symbols
The following symbols are found in this
Supplemental Operating Instructions
Booklet:GWarning!
Warning notices draw your attention to
hazards that may endanger your health or life,
or the health or life of others.
! Highlights hazards that may result in
damage to your vehicle.
i Helpful hints or further information you
may find useful.
XThis symbol points to instructions
for you to follow.XA number of these symbols
appearing in succession indicates
a multiple-step procedure.Y pageThis symbol tells you where to look
for further information on a topic.YYThis continuation symbol marks a
warning or procedure which is
continued on the next page.DisplayText in displays, such as the control
system, are printed in the type
shown here.221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 2
A
ABS (Antilock Brake System) ............. 10
Warning lamp ................................... 24
Anticorrosion/antifreeze .................... 36
Antilock Brake System see ABS
Automatic transmission
Messages in the multifunction
display ............................................. 21
Axle oils ................................................ 35
B
BAS (Brake Assist System) ................. 11
Battery Charging .......................................... 28
Charging condition high-voltage
battery (COMAND) ...........................15
Charging condition high-voltage
battery (instrument cluster) .............15
Jump starting ................................... 29
Messages in the multifunction
display ............................................. 22
Safety notes ..................................... 26
see High-voltage battery
Brake Assist System
see BAS
Brakes
Messages in the multifunction
display ............................................. 23
Warning lamp ................................... 24
Brake system
see RBS
C
Capacities and recommended
fuel/lubricants .................................... 34
Charging condition high-voltage
battery (COMAND) ............................... 15
Climate control system ...................... 19
COMAND
Charging condition high-voltage
battery ............................................. 15
Fuel consumption ............................ 16
Generated electric power ................16
Overview .......................................... 14
Combustion engine
Malfunction ...................................... 25
Starting ............................................ 16
Consumption statistics (COMAND) ... 16
Control system
Overview .......................................... 14
Coolant
Anticorrosion/antifreeze .................36
Capacities ........................................ 35
Cruise control ...................................... 11
D
Displays
Charging condition high-voltage
battery (COMAND) ...........................15
Charging condition high-voltage
battery (instrument cluster) .............15
Messages in the multifunction
display ............................................. 20
Multifunction and COMAND
display ............................................. 15
DISTRONIC PLUS ................................. 11
Driving and parking
Safety notes ..................................... 16
Driving off ............................................ 17
Driving safety systems
ABS .................................................. 10
BAS .................................................. 11
RBS .................................................. 10
Driving systems
Cruise control .................................. 11
DISTRONIC PLUS ............................. 11
Driving tips .......................................... 18
DISTRONIC PLUS ............................. 18
E
ECO Start/Stop function .................... 17
Electric drive
Engine number ................................. 32
Engine
see Combustion engine
Engine number
Electric drive .................................... 32
Enviromental protection ....................... 7
ESC (Electronic Stability Control)
Warning lamp ................................... 24
4Index221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 4
F
Flat tire
Spare wheel ..................................... 34
Fluids
Automatic transmission fluid ...........35
Brake fluid ....................................... 35
Capacities ........................................ 34
Engine coolant ................................. 35
Engine oil ......................................... 35
Power steering fluid .........................35
Washer and headlamp cleaning
system ............................................. 35
Fuel
Capacity, fuel tank ...........................35
Fuels, coolants, lubricants etc. .......... 34
Fuel tank
Capacity ........................................... 35
H
High voltage see Safety notes
High-voltage battery ........................... 10
Charging .......................................... 29
Charging condition (COMAND) ........15
Exhaustive discharge .......................27
Messages in the multifunction
display ............................................. 22
Removing/installing cover ...............27
Hood
Messages in the multifunction
display ............................................. 22
HYBRID system
Automatic switch-off .................. 10, 26
Overview .......................................... 13
READY indicator lamp ......................16
I
Indicator lamp see Lamps, indicator and warning
Instrument cluster .............................. 14
Lamps .............................................. 24
Introduction ......................................... 12
J
Jump starting ....................................... 29
Jump start terminal
Removing/installing cover ...............28
L
Lamp see Lamps, indicator and warning
Lamps, indicator and warning ............ 24
ABS .................................................. 24
Brakes (red) ..................................... 24
ESC .................................................. 24
Instrument cluster ........................... 24
RBS .................................................. 24
SRS .................................................. 26
M
Message see Lamps, indicator and warning
Minispare wheel
see Spare wheel
Multifunction display
Symbol messages ............................ 22
Text messages ................................. 21
Vehicle status messages .................20
Multifunction display messages
Automatic transmission ...................21
Battery ............................................. 22
Brakes ............................................. 23
Display malfunction .........................20
Hood ................................................ 22
O
Operating safety .................................... 7
P
Parking ................................................. 18
R
RBS (Recuperative Brake
System) .......................................... 10, 12
Malfunction ................................ 24, 26
Warning lamp ................................... 24
READY indicator lamp ......................... 16
Index5221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 5
Rear axle oil ......................................... 35
Recuperation statistics (COMAND) ... 16
Rims ...................................................... 33
Risk of fire see Safety notes
S
Safety see Operating safety
Safety notes ........................................... 9
Spare wheel ......................................... 34
SRS (Supplemental Restraint System)
Indicator lamp .................................. 26
Start/Stop function
see ECO Start/Stop function
Starting
see Combustion engine
Stop-and-go traffic .............................. 17
Submenu
Multifunction and COMAND
display ............................................. 14
Resetting values (COMAND) ............16
T
Technical data
Capacities fuels, coolants,
lubricants etc. .................................. 34
Coolant ............................................ 36
Engine oils ....................................... 36
Rims and tires .................................. 33
Spare wheel ..................................... 34
Vehicle specification
S 400 HYBRID .................................. 32
Washer and headlamp cleaning
system ............................................. 35
Tires ...................................................... 33
Towing
Vehicle ............................................. 31
Trailer hitch ............................................ 7
Turning off see ECO Start/Stop function
V
Vehicle
Disuse .............................................. 27
Towing ............................................. 31
Vehicle fire
see Safety notes
Vehicle modifications ........................... 7
Vehicle specification
S 400 HYBRID .................................. 32
W
Warning labels ....................................... 9
Wheels, sizes ....................................... 33
Winter tires .......................................... 33
6Index221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 6
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
GWarning!
The high-voltage battery of the HYBRID
system is located in the engine compartment
on the passenger side of the front wall. When
the pressure inside the high-voltage battery
exceeds a certain value, for example in case
of a vehicle fire, inflammable gas will escape
via a duct. The inflammable gas escapes to an
area close to the passenger-side front wheel.
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/ESC warning lamp ÷ in the
instrument cluster ( Y page 14) 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 supports you while braking by
electronic controlled brake boost and allows
for regeneration of braking energy. RBS must
be activated when the vehicle is parked each
time before driving off.XMake sure the automatic transmission is in
park position P.XSwitch on the ignition.XApply the brake pedal fully and release it.
The RBS is activated.
While you activate 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 12).
GWarning!
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.
GWarning!
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.
GWarning!
Have work on the RBS, e.g. brake pad
replacement, carried out by qualified
technicians only.
10Safety and security221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 10
Introduction
The HYBRID technology combines an
economical combustion engine with a
powerful electric drive. 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 when stopping as often as possible
in order to save fuel. You will just have to
continue to keep the brake pedal depressed
or to activate the HOLD function. Thus, the
engine should normally never run at idle
speed.
When you remove the foot from the brake
pedal or accelerate when the HOLD function
is activated, the combustion engine starts
automatically. You can drive off as usual.GWarning!
When the green READY indicator lamp 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. When you open the
driver’s door, unbuckle the seat belt, or take
your foot off of the brake pedal, the
combustion engine starts automatically. The
vehicle could start to drive off. An accident
causing serious or even fatal personal injury
to you and/or others could be the result.
Therefore, always do the following before
leaving the vehicle:
R Engage the electronic parking brake.
R Shift the automatic transmission into park
position P.
R Switch off the ignition. The green or yellow
READY indicator lamp goes out.
Driving off and accelerating consumes the
most energy. Thus, the electric drive supports
the combustion engine with the energy stored
in the high-voltage battery. The energy is also
used for semi-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 and parking, see
( Y page 16).
The current operating mode of the HYBRID
system can be displayed in the multifunction
display and in the COMAND display
( Y page 14).
The COMAND can also display a chart of the
fuel consumption and the electric power that
has been generated ( Y page 16).
RBS
With the RBS activated ( Y page 10), the
electric drive 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.
12Controls in detail221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 12
Instrument clusterFunctionPage:÷ ABS/ESC warning
lamp
10,
24
;$ Brake warning lamp,
USA only24
J Brake warning lamp,
Canada only24
=é Recuperative Brake
System (RBS) warning lamp24
?Green or yellow READY
indicator lamp for the
HYBRID system16
AMultifunction display
with:
Charging level high-voltage
battery15
Control system and COMAND
iFor 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 16).
Selecting submenu in the
multifunction display
Use the buttons on the multifunction steering
wheel.
XPress button = or ; to select the
Trip menu.
XPress button 9 or : to select the
HYBRID menu.
Selecting submenu in the COMAND
display
XSelect Vehicle Q Hybrid Q Energy.14Controls in detail221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 14
Multifunction display and COMAND
display examples
Example illustration: Operating mode display
1Combustion engine2Electric drive3High-voltage battery4Charging condition of high-voltage
battery in percent
5Flow of energy
The HYBRID components that are currently
active are highlighted in the multifunction
display and the COMAND display.
Multifunction
display
COMAND displayOperating modeThe electric drive 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 arrows that indicate the flow
of energy are green.
Boost effect – the electric drive
supports the combustion engine
when driving off and when
accelerating.
The arrows that indicate the flow
of energy are red.
Normal driving – the combustion
engine powers the vehicle.
The arrows that indicate the flow
of energy are white.
Controls in detail15221_ZA; 1; 21, en-USd2ureepe,Version: 2.11.8.12009-05-13T13:56:31+02:00 - Seite 15Z