2014 MERCEDES-BENZ C-CLASS SALOON Owners Manual

situations your vehicle may not be heard by
other road users. This is the case, for exam-
ple, when you are parking and your vehicle is not seen by other road users.
This requires you to adopt a particularly antic-
ipatory driving style, as it is necessary to allow
for the possibility that other road users may
behave unpredictably. 270
Hybrid operationDriving and parking

Hybrid system overview
:
Recuperative Brake System
; 12 V battery
= High-voltage battery
? Electric cables for the high-voltage electrical system
A High-voltage battery cooling
B Electric refrigerant compressor
C Power electronics cooling
D Electric vacuum pump
E Transmission with electric motor
F Power electronics (DC/AC converter or DC/DC converter)
You can deactivate the hybrid system manually. For further information on the high-voltage
disconnect device, see (Y page 43). Hybrid operation
271Driving and parking Z

Instrument cluster
:
Charge level display for high-voltage battery (Y page 273)
; RBS warning lamp (Y page 362)
= Electric motor power display (Y page 272)Displays and operation
Coolant temperature display for a com- bustion engine You can call up the coolant temperature using
the on-board computer.
X Use Ñ on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Service
Servicemenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select
Coolant
Coolant. Electric motor power display The electric motor power display is on the
right-hand side of the instrument cluster.
The current charge level of the high-voltage
battery is shown as a percentage in charge
level display
A. 100% corresponds to the
highest possible charge level of the high-volt- age battery.
There are two further areas located to the left
and right of charge level display A:
R Area :to; (E-DRIVE): 272
Hybrid operationDriving and pa
rking

This shows the electric output from the
electric motor, e.g. when driving using the
electric motor or in boost mode.
When the motor is switched on, the display is at :. When driving solely on electricity,
the display fills up from :to; depending
on the power output demanded as a result
of pressing the accelerator pedal.
If the display has reached limit ;, addi-
tional power output can only be provided by
the combustion engine. The combustion
engine starts. If the display is approaching
limit ;and you remove your foot from the
accelerator pedal, the display empties
again. The combustion engine is not
switched on. At low speeds, you can
thereby control the electric drive usage so
that you only drive in electric mode.
R Area =to? (CHARGE):
This shows the recuperated energy which is
stored in the high-voltage battery as elec-
trical energy.
When the display reaches limit ?, the max-
imum recuperative braking power has been exhausted. The conventional brakes are
activated.
Operating the on-board computer You can display the current operating condi-
tion of the hybrid system in the multifunction
display and the COMAND display
(Y page 273).
You can display the current operating condi-
tion of the hybrid system in the multifunction display and the Audio 20/COMAND Online
display (Y page 273).
In the Audio 20/COMAND Online display, you
can also call up a graphic display of the fuel
consumption and generated electricity
(Y page 276). Menus and submenus
Selecting messages in the Audio 20/
COMAND Online display X
Press the Øbutton on the controller.
The vehicle menu appears.
X To select Energy Energyflow
flow: turn and press the
controller.
The energy flow is displayed.
X To select Consumption Consumption: turn and press the
controller.
Fuel consumption and the electric energy
generated are displayed.
X To exit the display: press the %button
on the controller.
Selecting the energy flow display in the multifunction display X
Use Ñ on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip Tripmenu.
X Confirm by pressing aon the steering
wheel.
X Use : or9 to select Energy flow
Energy flow .
The energy flow is displayed.
Energy flow display Overview
:
Internal combustion engine
; Electric motor
= Charge status of the high-voltage battery Hybrid operation
273Driving and parking Z

?
High-voltage battery
A Energy flow
The active hybrid components are highligh-
ted.
The energy flow is indicated by arrows. The
arrows have a different colour depending on
the operating state:
R Green: energy recuperation
R White: normal energy consumption
R Red: increased energy consumption, provi-
ded by the vehicle's high-voltage electrical
system
Automatic engine switch-off The internal combustion engine and the elec-
tric motor are switched off.
The arrows for the energy flow are not shown.
The combustion engine is shown in dark grey.
The charge status of the high-voltage battery is shown when the key is in position 2in the
ignition lock.
Engine running while the vehicle is sta-
tionary The combustion engine is running while the
vehicle is stationary. The high-voltage battery
is not being charged.
The arrows for the energy flow are not shown. The combustion engine is highlighted.
Charging while the vehicle is stationary The internal combustion engine drives the
electric motor. The electric motor is operating
as an alternator. The high-voltage battery is
charging.
The arrow representing energy flow is shown in white.
Driving using the internal combustion
engine The internal combustion engine powers the
vehicle.
The arrows for the energy flow are shown in
white.274
Hybrid operationDriving and parking

Driving using the internal combustion
engine and boost mode If you rapidly depress the accelerator, the
electric motor supports the internal combus-
tion engine by providing additional torque.
The arrows for the energy flow are shown in
red.
Driving using the internal combustion
engine and energy recuperation The internal combustion engine powers the
vehicle.
The electric motor is being operated as an
alternator, e.g. in overrun mode and when
braking (Y page 279). The kinetic energy of
the vehicle is converted into electrical energy. The high-voltage battery is charging.
The arrows for the energy flow are shown in
green. Driving using the internal combustion
engine and charging the high-voltage bat-
tery The internal combustion engine powers the
vehicle. The internal combustion engine also
drives the electric motor. The electric motor
is operating as an alternator. The high-voltage battery is charging.
The arrows for the energy flow are shown in
white.
Driving using the electric motor The electric motor powers the vehicle. The
high-voltage battery supplies the electric
motor with electrical energy.
The arrows for the energy flow are shown in
green. Hybrid operation
275Driving and parking Z

Driving using the electric motor and
charging the high-voltage battery The electric motor is being operated as an
alternator, e.g. in overrun mode and when
braking. The kinetic energy of the vehicle is
converted into electrical energy. The high-
voltage battery is charging.
The arrows for the energy flow are shown in
green. The combustion engine is shown in
dark grey.
Displaying the total range The approximate range is based on the cur-
rent driving style.
X Use Ñ on the steering wheel to call up
the list of menus.
X Press the :or9 button on the steer-
ing wheel to select the Trip
Trip menu.
X Confirm by pressing aon the steering
wheel.
X Press :or9 to select the approxi-
mate total range. Displaying fuel consumption and gen-
erated electrical energy
:
Fuel consumption
; Electrical energy generated
Every bar of the graph displays the average
value for one minute.
Fuel consumption indicator :may differ
from the indicator in the From start
From start trip
computer in the Trip Tripmenu.
To reset values: the values are reset along
with the From start
From start trip computer
(Y page 299).
X To select Consumption
Consumption: turn and press the
controller.
The Audio 20/COMAND Online display
shows fuel consumption :and electrical
energy generated ;for the last
15 minutes driven. Starting the engine
READY indicator X
Switch the ignition on.
X Depress the brake pedal. 276
Hybrid operationDriving and pa
rking

X
Observe the notes on starting the engine
(Y page 183).
X Turn the key to position 3in the ignition
lock (Y page 183) or press the Start/Stop
button once (Y page 184).
The vehicle is operational when READY indi-
cator :lights up.
Noiseless start The vehicle starts in electric mode without the
internal combustion engine. The internal
combustion engine starts only after the
power demanded by the driver exceeds the
available power that the electric motor can
currently provide.
Noiseless start operation is dependent on the
outside temperature and the operating tem-
perature of the internal combustion engine.
The vehicle is operational when READY indi-
cator :lights up. Pulling away
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the brake pedal.
Further information on pulling away
(Y page 184). Driving
AGILITY SELECT switch Driving programs
Use the AGILITY SELECT switch to change the
drive program. Depending on the drive pro-
gram selected, the following vehicle charac-
teristics will change:
R the drive (engine and transmission man-
agement)
R the suspension
R the steering R
the availability of the ECO start/stop func-
tion (Y page 279)
R the climate control settings
- THERMATIC (Y page 153)
- THERMOTRONIC (Y page 156)
R the rear window heating operation period
(Y page 164)
R the performance of the seat heating
(Y page 123)
If the ignition is switched off for less than four
hours, the previously selected drive program
is activated when the engine is next started. If the ignition is switched off for more than four
hours, drive program Cis activated when the
engine is next started. X
Push AGILITY SELECT switch :up or down
until the desired drive program is selected. The selected drive program appears in the
multifunction display. After five seconds
the display goes out and the status icon of
the selected drive program appears.
In addition, the current drive program set-
tings are displayed in the Audio 20/
COMAND Online display.
Available drive programs: I
Individual Individual settings
S+
Sport Plus R
Extremely sporty driving
style with boost mode
R Electric-only drive is not
possible
R The ECO start/stop
function is not available Hybrid operation
277Driving and parking Z