CITROEN DS3 Owner's Handbook Manual page 173

Going into engine START mode
The "ECO" warning lamp goes off
and the engine starts:
- with a manual gearbox , when you fully
depress the clutch pedal.
With a manual gearbox in STOP mode,
if a gear is engaged without fully
depressing the clutch pedal, a message
is displayed asking you to depress the
clutch pedal to restart the engine.
Special cases: START invoked
automatically
For your safety and comfort, START mode is
invoked automatically when:
- you open the driver's door,
- you unfasten the driver's seat belt,
- the speed of the vehicle exceeds 15 mph
(25 km/h) with a manual gearbox,
- some special conditions (battery charge,
engine temperature, braking assistance,
ambient temperature...) where the engine is
needed to assure control of a system.
The "ECO" warning lamp flashes, then
goes off.
This operation is perfectly normal.
Deactivation
At any time, press the "ECO OFF" switch to
deactivate the system.
This is confirmed by the switch warning lamp
coming on accompanied by a message in the
screen.
If the system has been deactivated
in STOP mode, the engine restarts
immediately.
171
Driving