2015 Citroen DS5 HYBRID4 engine

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The electronic power super visor (4)
manages the operation of the two power units, HDi Diesel and electric, giving priority to low fuel consumption.
The alternator-starter motor (5) assures the
Stop & Star t function, which allows the HDi Diesel engine to be put into standby when the vehicle is at a standstill (traffic lights, a stop, or in a traffic jam...) or during phases of running in 100% electric mode. The stopping and restarting of the HDi Diesel engine is done automatically and instantly without any action on the part of the driver. This alternator-starter motor also provides additional charging of the high-voltage battery by the HDi Diesel engine, if this not sufficiently charged, or in 4WD mode for example.
The 12 V batter y , located under the bonnet, 12 V batter y , located under the bonnet, 12 V batter y
powers the vehicle's conventional electrical system. It is used for starting the HDi Diesel engine and the operation of the vehicle's equipment, such as the lighting, wipers, audio system... This 12 V battery is recharged automatically by the high voltage network.

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Instrument panel
* By successive presses on the end of the wiper control stalk.
1. Power indicator (%). Display of the percentage of the total power available supplied by the Hybrid4 system, or the energy recovered. 2. Selector position and gear engaged for the electronic gearbox or gear shift indicator. 3. Speed limiter or cruise control settings. 4. READY lamp: indicates that the vehicle is ready to drive.
Control buttons Dials and screens
A. Main lighting and controls dimmer. B. - Successive short presses: under-inflation detection, recall servicing information, alert log. - Long press: reset the function selected to zero (service indicator or trip recorder).
5. Engine coolant temperature gauge (°Celsius). 6. Analogue speedometer (mph or km/h). 7. Digital speedometer (mph or km/h). 8. Fuel gauge. 9. Instrument panel screen: - permanent display of distance recorders, and, as desired * : trip computer, energy flows, current media playing or navigation instructions, - temporary display: service indicator, engine oil level indicator, alert messages.

9Hybrid4 system
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When the Hybrid4 system is started, this indicator lamp comes on to signal that the vehicle is ready to move off.
Illumination of this indicator lamp is more or less instant but may take a few seconds in some cases (pre-heating the HDi Diesel engine in cold weather or in energy economy mode...).

READY lamp
Never leave the Hybrid4 system on when leaving the vehicle, or opening the bonnet, refuelling... Before leaving the vehicle, ensure that the RE ADY lamp is off. RE ADY lamp is off. RE ADY
better energy recovery). This allows the high voltage battery to be recharged using "free" energy which can then be reused for future energy requirements.
CHARGE zone
POWER zone
Indicates an increased cumulative power demand from your vehicle, taking account of the combined power available from the HDi Diesel engine and the electric motor.
Power indicator
The indicator dial displays information on the total power used in real time, combining electric and Diesel. It comprises three operating zones.
Indicates that the vehicle is optimising its energy consumption , electric, Diesel or a combination of both.
ECO zone
This zone corresponds to phases of electric running as well as to phases of optimum use of the HDi Diesel engine, which are easily accessible with a suitable driving style (smooth "eco-citizen" driving).
Indicates that the vehicle is in
an electrical energy recoveryphase: on deceleration, braking (partially or particularly with your foot off the accelerator, to use in preference as this gives

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Display of energy fl ows
Display of fl ows in the instrument panel
Hybrid4 modes
1. Hybrid4 mode selected ( AUTO , ZEV , ZEV , ZEVSPORT or 4WD ) . 2. "Zero Emission" messages if the HDi Diesel engine is stopped (0 g/km CO2) .
Display of fl ows in the touch screen tablet
Information on the hybrid mode selected ( 1, 2 ), arrows for energy flows ( 6 to 8 ) and the state of charge of the high voltage battery ( 4 ), is displayed in real time in the instrument panel screen or the the touch screen tablet. See the "Trip computer" section.
Vehicle infrastructure
3. HDi Diesel engine. 4. State of charge of the high voltage battery. 5. Electric Motor/Generator.
Operation / Energy flows
6. The HDi Diesel engine supplies the battery (as needed). 7. Arrow from left to right: the battery powers the electric motor (when the electric motor is operating). Arrow from right to left: the electric motor/generator recharges the battery (energy recovery phases). 8. The HDi Diesel engine drives the front wheels. 9. The electric motor drives the rear wheels.

11Hybrid4 system
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On starting and when stationary
There is no flow of energy; the Stop & Start alternator-starter stops and restarts the HDi Diesel engine automatically, whatever the operating mode selected.
Energy recovery
During this phase (deceleration, braking, foot off the accelerator, … all modes), the high voltage battery is recharged by the electric motor/generator, then being driven by the rear wheels. You can maximise this energy recovery by taking your foot off the accelerator pedal; deceleration will be less marked than with a conventional vehicle.
100% electric
In all electric running (AUTO or ZEV modes), only the electric ZEV modes), only the electric ZEVmotor drives the vehicle, via the rear wheels, powered by the high voltage battery. The display of " Zero Emission " indicates that the HDi Diesel engine is stopped and the vehicle is producing no CO2.

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Fuel consumption histogramme
(Only with the touch screen tablet)
This graph represents the history of average fuel consumption figures. These figures are calculated over the last 30 minutes in periods of 5 minutes.
" 60 % Hybrid Us e" corresponds to 60 % of the cumulative running time with the addition of the Hybrid4 system and 40 % of the time with the Diesel engine only.
For more information on the trip computer, refer to the corresponding section.
Fuel consumption

15Hybrid4 system
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Starting the Hybrid4
system
Activation of the Hybrid4 system
On activation of the Hybrid4 system, the instrument panel lights up, the power indicator needle is placed at position " 0 ". The steering column automatically unlocks (perceptible noise and movement of the steering column). Depending on certain parameters, such as the state of charge of the high voltage battery or the ambient temperature, the Hybrid4 system itself determines whether it is necessary to start the HDi Diesel engine. The mode selector is at the AUTO p o s i t i o n .
In wintry conditions with the engine cold, the Diesel pre-heating warning lamp can stay on for a few seconds; wait until it goes off before releasing the brake pedal.
Starting - switching off the Hybrid4 system
Never leave children alone inside the vehicle when the Hybrid4 system is a c t i v e .
 Place the gear selector at position N .  Insert the electronic key in the reader. or  With Keyless Entry and Starting, simply having the electronic key inside the vehicle is sufficient.
 Press the brake pedal firmly.  Make a single short press (about one second) on the " START/STOP " button.  Maintain pressure on the brake pedal until the RE ADY lamp comes on, signalling RE ADY lamp comes on, signalling RE ADYactivation of the Hybrid4 system, confirmed by an audible signal.
If the Hybrid4 system does not start up:  If N is flashing in the instrument panel, move the gear selector to position A then to position N .  If the " Foot on the brake " is displayed, press the brake pedal
f i r m l y .

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Moving off
For more information on the ETG6 electronic gearbox and the electric parking brake, refer to the corresponding sections in the handbook for the vehicle.
You can change the operating mode of the Hybrid4 system at any time using its mode selector. Driving in ZEV mode requires that particular conditions be met.
When your vehicle vehicle moves off in electric mode, it makes no noise. Be very careful of pedestrians, cyclists... as, because of this, they will not hear you coming.
Head-up display
The colour of the speedometer varies according to the drive train used: - white display: Diesel engine running, - blue display: Diesel engine s t o p p e d .
Using automatic mode with the electronic gearbox optimises gear changes and so gives more economical driving.
 If automatic operation of the electric parking brake has been deactivated, pull the control lever to release the parking brake manually.  Progressively release the brake pedal. If the parking brake is released, the vehicle then moves off. If the parking brake is still applied and is in automatic mode, accelerate progressively.
 Move the gear selector to position A(automatic mode) or M (manual mode) or R ( r e v e r s e ) .