2016 Citroen DS5 HYBRID Owner's Manual

19Hybrid4 system

















Mode selector


The selector allows the driver to select one of the four operating modes offered by the Hybrid4
system.


)
Turn the dial to the right or left; the mode selected is confirmed by illumination of the
corresponding indicator lamp.



ZEV
mode: for 100% electric running.

SPORT
mode: to make use of the maximum
per formance of the vehicle.


4WD
mode: to force 4x4 drive in conditions of
poor grip.


AUTO
mode: for everyday use and optimised
fuel consumption.
By default, the selector is in the AUTO
position when starting the Hybrid4 system, whatever
position it was in when the ignition was switched off.


AUTO mode


This mode is designed to optimise the vehicle's
fuel consumption by managing the alternate
or simultaneous operation of the two motors
according to the conditions and driving style.
When conditions allow, an adequate battery
state of charge and moderate acceleration, the
alternator-starter motor stops the HDi Diesel
engine to provide 100% electric running.

ZEV mode
(all electric)

Zero emissions vehicle operation is assured
100 % by electric drive.
This mode allows silent and clean running
at
moderate speeds.

It can be activated when the
conditions allow, particularly
if the state of charge of high
voltage battery is sufficient (from
4 bars).
In AUTO
mode, the electric motor
:


- can power the vehicle on its own in "zero
emissions" electric running, depending
on the state of charge of the battery, if the
conditions specific to the vehicle are met
and if acceleration is moderate,

- supplements the HDi Diesel
engine
when moving off and changing
gear, during acceleration or when traction
from the front wheels is inadequate,
temporarily providing 4-wheel drive.
The electric motor can operate only at speeds
below 52 mph (85 km/h). It is no longer active
above 75 mph (120 km/h).
Refer to the special conditions for operation of
ZEV
mode.

For more information on the special
conditions for the operation of ZEV

mode, refer to the corresponding
section.

If the conditions do not allow ZEV
mode to be
selected or maintained, the message " Electric
mode is not currently available
" appears in
the screen. The ZEV
indicator lamp flashes for
a few seconds then goes off and the indicator
lamp in the AUTO
position comes on.
In ZEV
mode:


- range and acceleration capacity are
limited; the maximum speed is around
36 mph (60 km/h),

- under high load or a priority requirement
causing the start of the HDi Diesel engine,
the system changes automatically to AUTO

mode.

21Hybrid4 system

This mode will be even more effective if
the vehicle is fitted with suitable tyres,
such as winter tyres.



SPORT mode
(Diesel and
electric)
4WD mode
(4 - wheel drive)

This mode allows more dynamic driving by
providing additional performance
.
By using the capacity of the electric motor
to supplement the power of the HDi Diesel
engine, the vehicle's full power is used for
acceleration and pick-up.
This mode manages the response of the
accelerator, the electronic gearbox and the use
of the electric motor.
In SPORT
mode:


- the electric motor as an addition is
available up to 75 mph (120 km/h).


This "4-wheel drive" mode provides additional
traction
at low speed by driving all four wheels
of the vehicle simultaneously: the HDi Diesel
engine (front wheel drive) and the electric
motor (rear wheel drive) operate simultaneously
and permanently.
Their coupling is managed electronically to
optimise traction when grip is poor.
In 4WD
mode:


- the HDi Diesel engine operates
continuously; if necessary, it supplies
energy for the electric motor,

- the additional traction from the electric
motor is available up to 75 mph (120 km/h).

This mode should be used on snow
covered roads or difficult ground (mud,
sand, ...), as well as for crossing a ford,
at moderate speed.
In this mode, in severe conditions
and if the circumstances allow, it is
recommended that you accelerate
strongly to facilitate moving off and
making progress and so reduce the risk
of getting stuck.

This mode is available whatever:


- the state of charge of the high
voltage battery,

- the altitude.

"ECO OFF" function


This function prevents the HDi Diesel engine being
switched off and ensures that a comfortable temperature
can be maintained in the passenger compartment.
This therefore allows the air conditioning or heating to be
kept running.
Depending on version, the control is either in
the switch panel alongside the steering wheel,
or in the " Driving
" menu of the touch screen.

On pressing the ECO OFF
switch, the
HDi Diesel engine restarts immediately and
then operates continuously.
The indicator lamp in the control comes on.

Pressing this control again deactivates the
function.
The indicator lamp in the control goes off.
The Hybrid4 system returns to normal
operation.

*
Except in ZEV mode, which gives preference
to electric running over maintaining a
comfortable temperature.
The function is deactivated on
switching off the ignition.
During phases of electric running and
when the internal combustion engine is
stopped, the Hybrid4 system manages
restarting automatically to maintain
the temperature in the passenger
compartment * .
However, variations in temperature
may still be felt in very high ambient
temperatures.
In this case, activate the ECO OFF

function.






With the switch on the dashboard



)
Press this switch.
Deactivation is confirmed by the illumination of
the indicator lamp in the control switch and the
display of a message.

Pressing the switch again reactivates the
system.
The indicator lamp in the switch goes off,
accompanied by the display of a message.




With the touch screen button


Pressing the button again reactivates the
system.
The indicator lamp for the button goes off,
accompanied by the display of a message.


)
Select the "Driving"
menu.
Deactivation is confirmed by the illumination of
the indicator lamp for the button and the display
of a message.
)
In the page, press this button.

23Hybrid4 system














Driving recommendations


Obser ve the driving regulations and remain
vigilant whatever the traffic conditions.
Pay close attention to the traffic and keep your
hands on the wheel so that you are ready to
react at any time to any eventuality.
On a long journey, a break every two hours is
strongly recommended.
In difficult weather, drive smoothly, anticipate
the need to brake and increase the distance
from other vehicles.



Driving on flooded roads


We strongly advise against driving on flooded
roads, as this could cause serious damage
to the internal combustion engine or electric
motor, the electronic gearbox, or the electrical
systems of your vehicle. If you are obliged to drive through water:


- check that the depth of water does not
exceed 15 cm, taking account of waves
that might be generated by other users,

- place the mode selector in the 4WD

position,

- drive as slowly as possible without
stalling. In all cases, do not exceed 6 mph
(10 km/h),

- do not stop and do not switch off the
engine.
On leaving the flooded road, as soon as
circumstances allow, make several light brake
applications to dry the brake discs and pads.
If in doubt on the state of your vehicle, contact
a CITROËN dealer or a qualified workshop.



Important!


Never drive with the parking brake
applied - Risk of overheating and
damage to the braking system!
Do not park or run the engine when
stationary in areas where inflammable
substances and materials (dry grass,
dead leaves...) might come into
contact with the hot exhaust system
or certain components of the Hybrid4
system which can reach very high
temperatures - Risk of fire!

Never leave a vehicle unsuper vised
with the engine running. If you have
to leave your vehicle with the engine
running, apply the parking brake
and put the electronic gearbox into
position N
.

Eco-driving

Eco-driving is a range of everyday practices that allow the motorist to optimise their fuel
consumption and CO
2 emissions.

Adapted to your Hybrid4 vehicle


Use gear selector position A
, as this optimises gear changes to suit the circumstances, and
the AUTO
mode of the Hybrid4 mode selector.
When moving off, accelerate normally up to the desired speed ( POWER
zone between 20
and 40 %).
At steady speeds, drive gently with small movements of the accelerator pedal ( ECO
or
CHARGE
zone), to allow running in electric mode when driving at low speed.
Anticipate the need to slow down and use engine braking ( CHARGE
zone), so as to make
use of the recovery of "free" energy, while maintaining light pressure on the accelerator
pedal.

For information on other eco-driving practices, refer to the corresponding section of the
handbook for the vehicle.

25Hybrid4 system































Special conditions for the operation of ZEV mode



ZEV
mode can be selected when all of
the conditions for its operation are met, in
particular an adequate state of charge of the
battery (50% at least).
In the situations described below, the HDi
Diesel must be running; accordingly, ZEV

mode cannot be selected or is deactivated
automatically. The mode selector remains at or
returns to the AUTO
position to allow starting of
the HDi Diesel engine.


- Manual gear change when in automatic
mode using the steering mounted controls
for the electronic gearbox.
Cases of non availability of ZEV mode or automatic return
to AUTO mode

- Selection of manual mode by moving the
gear selector for the electronic gearbox to
position M
.

- Sustained and sharp acceleration.

- Use of demisting / defrosting.

- Intensive use of air conditioning.



Action by the driver:

Unsuitable circumstances:



- If the state of charge of the high voltage
battery is lower than 4 bars (equal to
50% charged). In AUTO
mode, electric
operation is possible with a lower state of
charge.

- When the speed of the vehicle exceeds
18 mph (30 km/h), if the internal combustion
engine has not already started at least once
since the Hybrid4 system was started.

- When the fuel level enters the reser ve
zone (illumination of the low fuel warning
lamp). Where this reser ve is is being used
up quickly, ZEV
may not be possible for
some time after refuelling.
- During phases of regeneration of the
particle filter (FAP), which is automatically
triggered approximately every 300 miles
(500 kms) for a period of about 10 minutes.
During regeneration of the particle filter,
the particles a brought up to a high
temperature using the HDi Diesel engine;
A message is then displayed: " Electric
mode not available: FAP regeneration
".



Maintaining the performance of
the system:


- If certain conditions or engine temperature
requirements needed by the HDi Diesel
engine are not met (for example, in wintry
conditions).

- Following a prolonged period with the
vehicle parked in the sun.

- When the state of charge of the high
voltage battery is close to the maximum
level (for example: when going down a long
hill using the electric motor for braking),
recovery of the vehicle's kinetic energy
being no longer possible, the HDI Diesel
engine restarts automatically just to
provide engine braking.

- On a steep rising slope.

- Driving at altitude.