DS Automobiles DS 5, Handbook

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Frequently asked questions
100% electric mode (zero emissions)
Question Answer
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 a message which indicates that regeneration of the particle filter (FAP) is in progress.
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 ZEV
mode, even though I had just been running electrically
in
AUTO mode?
The management of ZEV is different from AUTO mode.
Changing to ZEV mode is only possible with a battery charge of at least 4 bars, in order to
assure 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 ZEV
mode; 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.