2015 Citroen DS5 HYBRID4 engine

DS5Hy4_en_Chap00c_hybride_ed01-2015
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
DS5Hy4_en_Chap00c_hybride_ed01-2015
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.

DS5Hy4_en_Chap00c_hybride_ed01-2015
Access to the underbonnet
The alternator-starter motor of your hybrid vehicle is also supplied at high voltage. If the vehicle ignition has not been switched off, there is a risk of the engine restarting at any t i m e .
Always ensure that the ignition is switched off ( RE ADY lamp off) RE ADY lamp off) RE ADYbefore opening the bonnet.
Before doing anything under the bonnet, to avoid the risk of serious injury, switch off the ignition and verify that the RE ADY lamp in the instrument RE ADY lamp in the instrument RE ADYpanel is off.
Recommendations

DS5Hy4_en_Chap08_info-pratiques_ed01-2015
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.

DS5Hy4_en_Chap10_caracteristiques_ed01-2015
Diesel engine and gearbox
Diesel engineHDi 160
GearboxETG6 electronic (6- speed)
Model codeRHC8 RHCM
Cubic capacity (cc) 1 9 9 7
Bore x stroke (mm) 85 x 88
Max power: EU standard (kW) * 120
Max power engine speed (rpm) 3 8 5 0
Max torque: EU standard (Nm) 300
Max torque engine speed (rpm) 1 750
Fuel Diesel
Catalytic converter Ye s
Particle filter Ye s
Engine oil capacity with filter replacement (in litres) 5 . 0
* The maximum power corresponds to the type approved value on a test bed, under conditions defined by European legislation (directive 1999/99/EC).

37Technical data
DS5Hy4_en_Chap10_caracteristiques_ed01-2015
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.

DS5Hy4_en_Chap11_questions-frequentes_ed01-2015
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.

DS5Hy4_en_Chap11_questions-frequentes_ed01-2015
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.