2014 Citroen DS5 HYBRID4 fuel consumption

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58 Instrument panel
59 Indicator and warning lamps
70 Gauges and indicators
74 Adjustment buttons
76 Setting the date and time
76 Clock
78 Trip computer
82 Electronic key - remote control
84 "Keyless Entry and Starting"
93 Boot
94 Alarm
97 Electric windows
99 Cockpit glass roof
101 Fuel tank
102 Misfuel prevention (Diesel)
106 Front seats
111 Rear seats
114 Mirrors
115 Steering wheel adjustment
116 Interior fi ttings
120 Boot fi ttings
121 Triangle (stowing)
122 Heating and Ventilation
124 Dual-zone digital air conditioning
128 Rear screen demist - defrost
28 Presentation
31 Starting / switching off
35 Ready lamp
35 Hybrid4 mode selector
38 Energy consumption / generation indicator
40 Display of hybrid power fl ow
43 Hybrid4 frequently asked questions
46 Eco off
47 Eco-driving
49 Consumption
50 High voltage battery
54 Car washing machine or tunnel
55 Vehicle on a fl at-bed
001002003COMFORT
ACCESS
MONITORING
HYBRID SYSTEM

9Familiarisation
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For economical driving, caring for the environment
The fuel consumption of a vehicle varies greatly : - according to the driver's style of driving (moderate, aggressive, fast, ...), - according to the type of journeys made (urban, main road, motor way, flowing, heavy traffic, …) and the speed.
Main recommendations for driving economically
Hybrid mode selector
To optimise fuel consumption, use the Auto mode of the selector whenever possible (the mode is activated automatically when starting) including for urban journeys. This mode optimises the use of the energy sources (internal combustion engine and/or electric) contrary to other modes, which are for use in particular cases.
Gear lever
Use the automatic mode A as much as possible as this optimises gear changes to suit the requirements.
Causes of high consumption and checks
As with any vehicle, limit overloading, wind resistance (windows open above 30 mph (50 km/h), roof bars, loaded or not, …), the use of power consumers (air conditioning, heated seats, heated rear screen, …). Observe the recommendations on checks (regular check of tyre pressures, correct tyre pressures, …) and routine servicing.
Drive smoothly
Stay in the "eco" zone displayed in the energy consumption / generation indicator: accelerate gently, drive at steady speeds using the speed limiter or cruise control as soon as possible. Use the "charge"zone: anticipate the need to slow down by taking your foot off the accelerator rather than braking. The movement of the energy consumption / generation indicator needle (into the "charge" zone), shows the level of energy recovery.
Consumption history
See the impact of your style of driving and the type of journey by reviewing the history of your energy consumption. Refer to the "Multifunction screens" section.

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The electronic power super visor - 4automatically manages the operation of the two power units (Diesel and electric) to provide the lowest consumption. An inverter and a transformer are needed to manage the electric power. The inverter acts on the torque of the electric motor, by regulating the current coming from the high voltage battery pack. Its operating range is between 150 and 270 volts. The transformer converts the 200 V of the battery pack to 12 V, to power the vehicle's ancillary systems.
The alternator-starter motor - 5 assures the Stop & Star t function which allows the Diesel engine to be put into standby during stops (traffic lights, a stop, or in a traffic jam, for example) or during phases of running in all-electric mode. The stopping and restarting of the Diesel engine is done in a way that is instantaneous and transparent for the driver. It also provides additional charging of the batteries (4x4 mode for example or under-charged high voltage battery).
The electronic gearbox - 6 provides, in automatic mode, significant savings in fuel consumption compared to a conventional manual gearbox, thanks to its electronic control system. It also offers improved driving pleasure with the possibility at any time of choosing the gear changing mode: automatic or manual, using the paddles located behind the steering wheel.

35Hybrid system
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Hybrid4 mode selector
The selector allows the user to choose between 4 drive modes for the vehicle. Turn the dial to the right or left; the mode selected is confirmed by illumination of the corresponding i n d i c a t o r.
ZEV mode, to force electric running.
SPORT mode, to make use of the maximum per formance of the vehicle.
4WD mode, to force the vehicle into 4x4 mode.
AUTO mode, for normal use and optimised fuel consumption.
On starting the vehicle: with the gear selector in position N , press the brake pedal and press the START/STOP button to activate the hybrid system. This lamp comes on when the vehicle is ready to move off ("Auto" mode is on by default) and so the driver can press the accelerator. This lamp comes on more or less instantly but may take a few seconds in some cases (in particular, the time needed for pre-heating the Diesel engine in cold weather or, for example, in energy economy mode, ...).
Ready lamp
With the vehicle stationary, press the START/STOP button and check that the Ready lamp is off when leaving the vehicle, other wise the hybrid system will still be active.
For more information, refer to the section on "Underbonnet precautions / warnings".

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ZEV mode *
(all electric)
Zero emissions vehicle operation is assured 100 % by electric drive. This mode forces silent running at moderate speeds.
It can be activated when the required conditions are met, particularly if the state of charge of high voltage battery is sufficient (from 4 bars).
Auto mode
It automatically manages the operation of the Diesel engine and the electric motor, according to inherent vehicle parameters, traffic conditions and driving style so as to optimise the vehicle's fuel consumption . In particular, this mode activates "zero emissions" electric running when the conditions allow.
In auto mode, the electric motor : - can drive the vehicle on its own up to around 36 mph (60 km/h) 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 Diesel engine when moving off and changing gear, during acceleration and when traction from the front wheels is inadequate (it automatically adds 4 wheel drive ), - is no longer active above 70 mph (120 km/h).
* ZEV: Zero Emissions Vehicle.
This standard mode to use in preference is activated automaticallyon starting the hybrid system.

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Automatic restarting of the Diesel engine or ZEV mode NOT available
Maintaining the performance of the system
- When the vehicle exceeds 18 mph (30 km/h) after moving off (if the internal
combustion engine has not already started since the vehicle was last started). - If the high voltage battery is not sufficiently charged. A minimum of 4 bars in ZEV mode so as to ensure operation over a certain distance (in AUTO, electric operation is accessible for a shorter period with a lower level of charge). - When the fuel level enters the reserve zone (where rate of consumption of this reserve is high, ZEV inhibition may continue for some time after refuelling). - During regeneration of the particle emissions filter, which occurs automatically for 5 to 10 minutes, approximately every 300 miles (500 kms) (or less in extended urban running).
The internal combustion engine may restart or ZEV mode may not be available in the various conditions presented below. The internal combustion engine can be switched off automatically as soon as these conditions are lifted. When the conditions described below cause the vehicle to come out of ZEV mode and the Diesel engine to restart, the vehicle automatically changes to AUTO mode.
Your vehicle is fitted with the most effective emissions control systems, in particular the Particle Emissions Filter (PEF). At regular intervals your Diesel engine will produce energy for the self-cleaning of this f i l t e r. During this PEF regeneration phase, electric running is purposely made unavailable and is accompanied by a message " Electric mode not available: PEF regeneration in progress ".
Action by the driver
- Moving the gear selector to position M . - Action on steering mounted control paddles to change gear. - Sustained and sharp acceleration. - Use of demisting. - Use of air conditioning.
Diffi cult weather conditions and circumstances
- If certain conditions or engine temperature requirements make it necessary (such as an engine temperature that is too low for the ambient conditions). - When the battery is close to maximum charge (for example: when going down a long hill), because engine recovery being no longer possible, the internal combustion engine restarts automatically just to provide engine braking. - If the vehicle encounters a steep slope (car park ramp, ...). - If the vehicle has been parked in the sun for a prolonged period. - When driving in mountainous conditions (altitude).

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Reducing consumption - Fuel
QuestionAnswer
How can I optimise my fuel consumption? Give preference to Auto mode as it selects in the best way the "driving energy source" to use in order to reduce fuel consumption. You should also adapt your driving style to the characteristics of hybrid vehicles to get the best out of it, for example by taking your foot off the accelerator pedal rather than braking and by anticipating decelerations (entering a built-up area, stop at traffic lights, stop at halt signs, ...).
Why do I not manage to reduce my fuel consumption even though I often drive in ZEV (Zero Emissions Vehicle) mode?
It is not ZEV mode but Auto mode that is the most appropriate for reducing fuel consumption, as it selects the best "driving energy source". ZEV mode (100% electric operation) can reduce fuel consumption in some cases. However, recharging the traction battery has an energy cost. This is why we recommend using Auto mode more often.
Why does the trip computer sometimes display the bars for 28 mpg (10 litres) consumption in
town?
The current fuel consumption displayed may appear high when the distance covered is very low, but this generally has very little impact and the true average fuel consumption will remain low.
In town, your hybrid retains very good fuel economy (of the order of 35% better than a non-hybrid vehicle).
Why is my battery rarely fully charged? A partly charged battery is normal operation (4 to 5 bars on average in Auto mode). This allows some capacity to be left free for the recovery for energy when going downhill or taking when your foot off the accelerator.
Why are there so may fuel alert messages when starting to use the reserve? To encourage you to refuel as soon as possible and avoid the loss of hybrid functions.

47Hybrid system
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Eco-driving
Eco-driving is a range of everyday practices that allow the motorist to optimise their fuel consumption and CO2 emissions.
Eco-driving suited 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), run in electric mode as often as possible when driving at low speed. Anticipate the need to slow down and use engine braking ( CHARGE zone), so as to make use of free energy recovery while keeping light pressure on the accelerator pedal.
Before moving off, if the passenger compartment is too warm, ventilate it by opening the windows and air vents before using the air conditioning. Above 30 mph (50 km/h), close the windows and leave the air vents open. Remember to make use of equipment that can help keep the temperature in the passenger compartment down (sun roof and window blinds...). Switch off the air conditioning, unless it has automatic digital regulation, as soon as the desired temperature is attained. Switch off the demisting and defrosting controls, if not automatic. Switch off the heated seat as soon as possible.
Switch off the headlamps and front foglamps when the level of light does not require their use.
Avoid running the Diesel engine when stationary, particularly in winter; your vehicle will warm up much faster while driving.
As a passenger, if you avoid connecting your multimedia devices (film, music, video game...), you will contribute towards limiting the consumption of electrical energy, and so of fuel. Disconnect your portable devices before leaving the vehicle.
Control the use of your electrical equipment