ECO mode Citroen DS5 HYBRID4 2015 1.G Repair Manual

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

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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 reserve zone (illumination of the low fuel warning lamp). Where this reserve 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.
- D r i v i n g a t a l t i t u d e .

27Hybrid4 system
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200 V high voltage battery
The 200 V high voltage battery is specially made for partial, rapid and frequent charging and discharging. Of Ni-MH (Nickel Metal Hydride) technology, it is located below the boot floor, close to the electric motor.
Charging
The battery recharges automatically while travelling. The battery is charged when the vehicle decelerates and when going downhill, the electric motor then becomes a generator and converts kinetic energy into electrical energy (except if the speed of the vehicle is above 70 mph (120 km/h)). This recovery allows the use of "free" energy. The battery may also be partially charged up to a level of 4 to 5 bars, using the alternator-starter motor (Stop & Start) of the HDi Diesel engine.
The average state of charge is 4 to 5 bars, so preserving a margin for energy recovery when deceleration of going downhill (free energy).
To preserve the service life of the battery, the level of charge never falls below 20%, even if a level of 0 bars is displayed after ZEV running. Where the battery is close to maximum, vehicle deceleration with your foot off the accelerator pedal will be at a lower l e v e l .
The battery charging time is very short. A discharged battery (following ZEV running or high load, for example) will quickly return to a state of charge sufficient (around 10 minutes) for full operation of the different hybrid modes.
The battery is not recharged from a mains power supply.

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Car washing machine or tunnel
Some car washing machines or tunnels (where the vehicle is moved for wards on a travelling track) require that the parking brake be "released" during the wash.
With the hybrid system active, RE ADY lamp on, parking brake RE ADY lamp on, parking brake RE ADYreleased: - Place the gear selector at position N . - Switch off the engine (press the START/STOP button). The parking brake is applied automatically and the RE ADYlamp goes off in the instrument panel. - Switch on the ignition again (press the START/STOP button) without your foot on the brake pedal. The RE ADY lamp RE ADY lamp RE ADYremains off. - Release the parking brake using the manual control on the centre console, while keeping your foot on the brake pedal. - Switch off the ignition (press the START/STOP button without
your foot on the brake pedal) checking that the parking brake r e m a i n s r e l e a s e d .
If the HDi Diesel engine was on standby, it then restarts. If the HDi Diesel engine is running, its operation is maintained without time limit.
With the hybrid system active, RE ADY lamp on, parking brake RE ADY lamp on, parking brake RE ADYreleased: - Place the gear selector at position N ( AUTO mode). - Press the brake pedal then the " ECO OFF " b u t t o n .
Car washing machines or tunnels in which the HDi Diesel engine must be switched off. Car washing machines or tunnels in which the HDi Diesel engine must not be switched off.
If possible on your vehicle, deactivate the automatic operation of the electric parking brake in the vehicle systems configuration menu.

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Recovery of the vehicle on a fl at-bed
Never recover the vehicle by towing it with two or four wheels on the ground, as there is a risk of damage to the transmission. However, if necessary because access to the vehicle is difficult, the vehicle can be moved a few dozen metres, at a speed of less than 6 mph (10 km/h).
Use the towing eye only to pull the vehicle out or to lash it for recovery on a flat-bed lorry or
t r a i l e r .
Before doing any work, with the ignition on, press the brake pedal and place the gear selector at position N , then switch off the Hybrid4 system ( RE ADY lamp off). RE ADY lamp off). RE ADY Always call on professionals for recovery of the vehicle on a flat-bed lorry or trailer.
Snow chains
Recommendations
The use of snow chains is only authorised on the front wheels. The mode selector must be in the 4WD p o s i t i o n .
For information on the sizes compatible with the tyres on your vehicle and advice on use, refer to the corresponding section in the handbook for the vehicle.

37Technical data
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Weights and towed loads (in kg)
* The kerb weight is equal to the unladen weight + driver (75 kg). ** The weight of the braked trailer can be increased, within the GTW limit, if the GV W of the towing vehicle is reduced by an equal amount; warning, towing using a lightly loaded towing vehicle may have an adverse effect on its road holding. To make use of the 300 kg load transfer, the driver must be alone in the vehicle with no luggage in the vehicle.
Diesel engineHDi 160
GearboxETG6 electronic (6- speed)
Model codeRHC8 RHCM
- U n l a d e n w e i g h t 1 6 6 0
- K e r b w e i g h t * 1 735
- Gross vehicle weight (GV W) 2 2 6 5
- Gross train weight (GTW) on a 12% gradient 2 7 6 5
- Braked trailer (within GTW limit) on a 10% or 12% gradient 500
- Braked trailer ** (with load transfer with the GTW limit) 8 0 0
- U n b r a k e d t r a i l e r 500
- Recommended nose weight 75
The GTW and towed load values indicated are valid up to a maximum altitude of 1 000 metres; the towed load mentioned must be reduced by 10 % for each additional 1 000 metres of altitude. The maximum authorised speed is reduced when towing (comply with the legislation in force in your country). High ambient temperatures may result in a reduction in the per formance of the vehicle to protect the engine; if the ambient temperature is above 37 °C, limit the towed load.

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Frequently asked questions
100% electric mode (zero emissions)
QuestionAnswer
Why is it not always possible for me to select ZEV(Zero Emissions Vehicle) mode even though the battery seems well charged?
This situation is temporary. Certain conditions will occasionally prevent the change to ZEV mode, even if the battery has sufficient charge, such as, for example, very cold conditions, altitude, demisting, high demand for heating or air conditioning, regeneration of the particle filter (FAP).
Why do I sometimes see an alert message "Electric mode not available: FAP regeneration in progress"? This is an message relating to the regeneration of the particle filter (FAP). This is a completely normal process that takes place every 240 or 300 miles (400 or 500 km) (or more frequently in prolonged urban use), as on a conventional HDi Diesel vehicle. In the case of a conventional HDi Diesel vehicle, this process is not generally noticed by the driver. On the other hand, in the case of Hybrid4 this phenomenon may be noticeable (in urban use) as temporarily the HDi engine will not stop and this message will be displayed at intervals while regeneration is in progress.
Why is it not possible for me to put the vehicle into ZEVmode, even though I had just been running electrically in AUTO mode?
The management of ZEV is different from ZEV is different from ZEVAUTO mode. Changing to ZEV mode is only possible with a battery charge of at least 4 bars, in order to ZEV mode is only possible with a battery charge of at least 4 bars, in order to ZEVassure sufficient range. In AUTO mode, the system alone manages the conditions for changing temporarily to electric mode, for shorter periods and with a lower state of charge of the battery.
Why is the range in ZEV mode lower when going uphill? The vehicle needs more energy when going uphill than when running on the level. So it is better to stay in AUTO mode, which will favour operation of the HDi Diesel engine.
Why is it that the system makes me come out of ZEVmode; it does not return to ZEV mode automatically when the conditions allow?
It is not intended to give preference to ZEV running at any cost, as it is not always the most economical mode. So the system returns automatically to AUTO mode.

39Frequently asked questions
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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 which allows the recovery of "free" energy for charging the battery (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 running) 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/100 km) in town? In traffic jams, the fuel consumption graph displayed may temporarily 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 urban driving, your Hybrid4 will remain more efficient in terms of fuel consumption (by around 35%) compared to a conventional 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 to avoid loosing the possibility of all electric running.

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Air conditioning / Heating
QuestionAnswer
It seems to me that the vehicle runs less on electric when the heating or air conditioning is operating, is that right?
The demand for heating or air conditioning may require the starting of the HDi Diesel engine until the desired level of comfort is attained. Normal operation of the Hybrid4 system is simply put back. The period can be longer under very low or very high ambient temperatures.
It seems to me that when it is very hot and the air conditioning is working, the vehicle runs on electric for shorter periods. Is that right?
When it is hot, the periods when the HDi Diesel engine is put on standby and the vehicle runs on electric are necessarily restricted in order to limit the difference between the temperature in the vehicle and the level of comfort selected. In very hot weather, it is always possible to press the " ECO OFF " button (which brings the vehicle out of ZEV mode and prevents electric running or the stopping of the engine) to give preference to temperature control (keeps the air conditioning running).
Miscellaneous
QuestionAnswer
Is towing possible with my Hybrid4 vehicle? For information on the towing ability of your Hybrid4 vehicle, refer to " Weights and towed loads" in the "Technical data" section. This allows a jet ski or two-wheeler on a trailer to be towed, for example. This limit is related to maintaining adequate cooling capacity for the HDi Diesel engine as well as the hybrid components that are also cooled by the engine's cooling system.
Why does engine braking seem so strong? When you take your foot off the accelerator, the engine braking results mainly from the energy recovery by the electric motor. This leads to a higher level of deceleration than a conventional vehicle and so allows the recovery of "free" energy.

41Alphabetical index
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Advice on driving ............................................23Air conditioning .........................................22, 25
Backup starting ...............................................18Bag hook .........................................................31Battery, 12 V ......................................................5Battery, high voltage ........................5, 27-29, 35Boot floor, removable ......................................31
Car wash .........................................................32Cooling, high voltage battery ..........................29
Ignition on........................................................17Indicator, power.............................................8, 9Instrument panel ...............................................8Instrument panel screen .......................8, 10, 13
Mode selector .......................................Mode selector .......................................Mode selector7, 19, 24Motor, electric .......................................5, 19, 35
Gear selector ..................................................Gear selector ..................................................Gear selector32
Head-up display ..............................................16Heating ......................................................22, 25High voltage ..............................................27, 28High voltage cable ..........................................28Histogramme, fuel consumption .....................12
Fittings, boot ...................................................31Flat bed (recovery) ..........................................34Four wheel drive ...........................19, 21, 23, 34Fuel consumption ..................................9, 12, 24
Opening the bonnet ........................................30
READY lamp .....................................8, 9, 28, 30Recovery of the vehicle ..................................34Regeneration of the particle filter ......................Regeneration of the particle filter ......................Regeneration of the particle filter5, 26Reset histogramme .........................................14Reset trip ...................................................13, 14Retaining strap ................................................31
Keyless Entry and Starting ..................15, 17, 18Key not recognised .........................................18
Parcel shelf, rear .............................................Parcel shelf, rear .............................................Parcel shelf, rear31Parking brake, electric ........................15, 23, 32Particle emission filter ................................Particle emission filter ................................Particle emission filter5, 25Power ................................................................Power ................................................................Power9Puncture ..........................................................33
Snow chains ....................................................34Speedometer ....................................................Speedometer ....................................................Speedometer8Starting the Hybrid4 system .....................15, 18State of charge, battery ..................5, 10, 25, 27Stop & Start .......................................4, 6, 11, 27Storage ............................................................31Switching off the Hybrid4 system .............15, 18
Defrosting ........................................................25Demisting ........................................................25Driving economically ......................................24
Eco-driving .....................................................24ECO OFF (switch) ...........................................22Electric running (ZEV) ............11, 20, 22, 24, 25Electronic gearbox ..........................7, 15, 23 -25Electronic key .......................................15, 17, 18Emergency switching off .................................Emergency switching off .................................Emergency switching off18Energy flows .............................................1 0 , 11Energy recovery ....................................9, 11, 24Engine compartment ......................................30Engine, Diesel ...............5, 19, 22, 25, 32, 36, 37Environment ....................................................24