2023 CITROEN DS7 CROSSBACK tank fault

8Eco-driving
Eco-driving
Eco-driving refers to a range of everyday practices
that allow the motorist to optimise the vehicle's
energy consumption (fuel and/or electricity) and
CO
2 emissions.
Optimise your use of the gearbox
With an automatic gearbox, favour automatic
mode. Do not depress the accelerator pedal
heavily or suddenly.
The gear shift indicator prompts you to engage
the most suitable gear. Whenever this indication
is displayed on the instrument panel, follow it
straight away.
With an automatic gearbox, this indicator
appears only in manual mode.
Drive smoothly
Maintain a safe distance between vehicles, use
engine braking rather than the brake pedal and
press the accelerator gradually. These practices
help to save on energy consumption, reduce CO
2
emissions and decrease general traffic noise.
Favour the use of the "Eco" driving mode by
selecting it using the "DRIVE MODE" control.
When the traffic is flowing smoothly, select the
cruise control.
Control the use of electrical equipment
Before moving off, if the passenger compartment
is too warm, ventilate it by opening the windows
and air vents before using the air conditioning. At speeds above 31 mph (50 km/h), close the
windows and leave the air vents open.
Consider using equipment that can help keep the
temperature in the passenger compartment down
(e.g. sunroof blind, window blinds).
Unless automatically regulated, switch off the air
conditioning as soon as the desired temperature
has been reached.
Switch off the demisting and defrosting
functions, if they are not managed automatically.
Switch off the heated seat as soon as possible.
Adapt your use of the headlamps and/or foglamps
to the level of visibility, in accordance with
current legislation in the country in which you are
driving.
Avoid running the engine before moving off,
particularly in winter (other than in severe wintry
conditions: temperature below -23°C). The vehicle
will warm up much faster while driving.
As a passenger, avoid connecting your multimedia
devices (e.g. film, music, video game) to help
reduce the consumption of energy.
Disconnect all portable devices before leaving the
vehicle.
Limit the causes of excess consumption
Spread loads throughout the vehicle. Place the
heaviest items in the boot as close as possible to
the rear seats.
Limit the loads carried in the vehicle and minimise
wind resistance (e.g. roof bars, roof rack, bicycle
carrier, trailer). Preferably, use a roof box.
Remove roof bars and roof racks after use.At the end of winter, remove snow tyres and refit
summer tyres.
Comply with the servicing instructions
Check tyre pressures regularly, with the tyres
cold, referring to the label in the door aperture on
the driver's side.
Carry out this check in particular:
–

before a long journe
y.
–

a
t each change of season.
–

a
fter a long period out of use.
Do not forget the spare wheel and, where
applicable, the tyres on your trailer or caravan.
Have your vehicle serviced regularly (e.g. engine
oil, oil filter, air filter, passenger compartment
filter, etc.). Observe the schedule of operations in
the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system
has a fault, your vehicle will emit pollution. Visit a
dealer or a qualified workshop as soon as possible
to restore your vehicle's nitrogen oxide emissions
to legal levels.
When filling the fuel tank, do not continue after
the third cut-out of the nozzle, to avoid overflow.
You will only see the fuel consumption of your new
vehicle settle down to a consistent average after
the first 1,900 miles (3,000 kilometres).
Optimising the driving range (rechargeable
hybrid vehicles)
Connect the vehicle as soon as possible.
Favour the ECO zone of the power indicator by
driving smoothly and at a steady speed.

15
Dashboard instruments01
Front passenger airbag (ON)Fixed.
The front passenger airbag is activated.
The control is set to the "ON" position.
In this case, do not install a "rearward facing"
child seat on the front passenger seat - risk of
serious injury!
Front passenger airbag (OFF)Fixed.
The front passenger airbag is deactivated.
The control is set to the “OFF” position.
A "rearward facing" child seat can be installed,
unless there is a fault with the airbags (Airbags
warning lamp on).
Low fuel levelFixed, accompanied by an audible signal
and a message.
When it first comes on, there remains
approximately 6 litres of fuel in the tank (reserve).
Until the fuel level is topped up, this alert will
be repeated every time the ignition is switched
on, with increasing frequency as the fuel level
decreases and approaches zero.
Refuel without delay to avoid running out of fuel.
Never drive until completely empty, as this could
damage the emissions control and injection
systems.
Pedestrian horn (Rechargeable hybrid)Fixed.
Horn fault detected.
Carry out (3).
Collision Risk Alert/Active Safety BrakeFixed, accompanied by the display of a
message.
The system has been deactivated via the touch
screen.
Flashing.
The system activates and brakes the
vehicle momentarily to reduce the speed of
collision with the vehicle in front.
For more information, refer to the Driving section.
Fixed, accompanied by a message and an
audible signal.
The system has a fault.
Carry out (3).
Fixed.
The system has a fault.
If these warning lamps come on after the engine
is switched off and then restarted, carry out (3).
Fixed.
The system is deactivated
temporarily because the driver and/or front
passenger (depending on version) has been
detected as present but the corresponding seat
belt has not been fastened.
Lane keeping assistFixed.
The system has been automatically
deactivated or placed on standby.
Flashing.
You are about to cross a broken lane
marking without operating the direction
indicators. The system is activated, then corrects the
trajectory if it detects a risk of unintentionally
crossing a line or hard shoulder (depending on
version).
For more information, refer to the Driving section.
Fixed, accompanied by the display
of a message and an audible signal.
The system has a fault.
Carry out (3).
Lane positioning assistFixed, accompanied by the Service
warning lamp.
The system has a fault.
Carry out (3).
Stop & StartFixed, accompanied by the display of a
message.
The Stop & Start system has been deactivated
manually.
The engine will not switch off at the next traffic
stop.
Reactivate the system via the touch screen.
Fixed.
The Stop & Start system has been
deactivated automatically.
The engine will not switch off at the next traffic
stop, if the exterior temperature is:
–

belo

w 0°C.
–

abo

ve +35°C.
For more information, refer to the Driving section.

16
Dashboard instruments01
Flashing then fixed, accompanied by a
message.
The system has a fault.
Carry out (3).
AdBlue® (BlueHDi)On for around 30 seconds when starting
the vehicle, accompanied by a message
indicating the driving range.
The driving range is between 1,500 and 500 miles
(2,400 and 800 km).
Top up the AdBlue
®.Fixed, on switching on the ignition,
accompanied by an audible signal and a
message indicating the driving range.
The driving range is between 500 and 62 miles
(800 and 100 km).
Promptly top up the AdBlue
®, or carry out (3).Flashing, accompanied by an audible
signal and a message indicating the
driving range.
The driving range is less than 62 miles (100 km).
You must top up the AdBlue
® to avoid engine
starting being prevented, or carry out (3).
Flashing, accompanied by an audible
signal and a message indicating that
starting is prevented.
The AdBlue
® tank is empty: the legally required
engine immobiliser system prevents the engine
from starting.
To restart the engine, top up the AdBlue
® or carry
out (2).
It is essential to add at least 10 litres of AdBlue
®
to the tank.
SCR emissions control system (BlueHDi)Fixed when the ignition is switched
on, accompanied by an audible
signal and a message.
A malfunction of the SCR emissions control
system has been detected.
This alert disappears once the exhaust emissions
return to normal levels.
Flashing AdBlue® warning lamp on
switching on the ignition, with the
Engine self-diagnostics warning lamp on fixed,
accompanied by an audible signal and a message
indicating the driving range.
Depending on the message displayed, it is
possible to drive for up to 685 miles (1,100 km)
before the engine immobiliser is triggered.
Carry out (3) without delay, to avoid starting
being prevented.
Flashing AdBlue® warning lamp on
switching on the ignition, with the
Engine self-diagnostics warning lamp on fixed,
accompanied by an audible signal and a message
indicating that starting is prevented.
The engine immobiliser prevents the engine from
restarting (the permitted driving limit has been
exceeded after confirmation of a malfunction of
the emissions control system).
To start the engine, carry out (2).
Rear foglampsFixed.
The lamps are on.
Automatic headlamp dippingFixed, accompanied by an audible signal
and a message.
A function or camera malfunction is detected.
Carry out (2).
DS PIXEL LED VISION 3.0Fixed, accompanied by an audible signal
and a message.
A malfunction of the DS PIXEL LED VISION 3.0
headlamps or of the camera has been detected.
Carry out (2).
DS NIGHT VISIONFixed.
The function has been activated, but
the vehicle is travelling too fast or the exterior
temperature conditions are outside the operating
range.
The display is available with "Night vision" mode
but the system does not emit an alert.
For more information, refer to the Lighting and
visibility section.
Green warning/indicator lamps
Stop & Start
Fixed.
When the vehicle stops, the Stop & Start
puts the engine into STOP mode.
Flashing temporarily.
STOP mode is momentarily unavailable or
START mode is automatically triggered.
For more information, refer to the Driving section.

20
Dashboard instruments01
Warning/indicator lamps on Action Remaining
range


A top-up is
vital, there is
a risk that the
engine will
be prevented
from starting.Between 62
miles and 0
miles (100
km and 0
km)


To be able to
restart the
engine, add at
least 10 litres
of AdBlue
® to
the tank. 0 miles (km)
Taking into account of top-up
Top-up detection may not be
instantaneous after addition. It may take a few
minutes of driving before the top-up detection
is effective.
Malfunction of the SCR emissions control
system
Malfunction detection


If a malfunction is detected,
these warning lamps come on,
accompanied by an audible
signal and the display of an
"Emissions control fault"
message.
The alert is triggered while driving when the fault
is detected for the first time, and thereafter when
switching on the ignition for subsequent journeys,
for as long as the cause of the fault persists.
If the fault is temporary, the alert
disappears during the next journey, after
self-diagnostic checks of the SCR emissions
control system.
Malfunction confirmed during the permitted
driving phase (between 685 miles and 0 miles
(1,100 km and 0 km))
If the fault indication is still displayed
permanently after 31 miles (50 km) of driving, the
fault in the SCR system is confirmed.
The AdBlue warning lamp flashes and a message
is displayed ("Emissions control fault: starting
prevented in X miles (kms)"), indicating the
driving range in miles or kilometres.
While driving, the message is displayed every 30
seconds. The alert is repeated when switching on
the ignition.
You can continue driving for up to 685 miles
(1,100 km) before the engine starting prevention
system is triggered.
Have it checked by a dealer or a qualified
workshop.
Starting prevented
Every time the ignition is switched on, the
message "Emissions control fault: Starting
prevented" is displayed.
To restart the engine
Contact a dealer or a qualified workshop.
Power indicator (Rechargeable
hybrid)
The power indicator shows in real time the power
demanded from the vehicle.
There are 3 zones:

165
Practical information07
the shock absorbers have a major impact on road
holding and braking performance.
For your safety and driving comfort, it is important
to have them regularly checked by a dealer or a
qualified workshop.
Timing and accessory kits
The timing and accessory kits are used
from the time the engine is started until it
is switched off. It is normal for them to wear over
time.
A faulty timing or accessory kit can damage
the engine, rendering it unusable. Observe the
recommended replacement frequency, stated in
distance travelled or time elapsed, whichever is
reached first.
AdBlue® (BlueHDi)
To respect the environment and ensure
compliance with the Euro 6 standard, without
adversely affecting the performance or
fuel consumption of its Diesel engines, the
Manufacturer has taken the decision to equip
its vehicles with a system that combines SCR
(Selective Catalytic Reduction) with a Diesel
Particle Filter (DPF) for the treatment of exhaust
gases.
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue® is contained in a special tank
holding about 17 litres.
Its capacity allows a driving range of
approximately 3,900 miles (6,500 km), which may
vary considerably depending on your driving style.
An alert system is triggered once the reserve level
is reached: it is then possible to drive for a further
1,500 miles (2,400 km) before the tank is empty
and the vehicle is immobilised.
For more information on the Warning and
indicator lamps and the associated alerts,
or the Indicators, please refer to the
corresponding sections.
Once the AdBlue® tank is empty, a device
required by law prevents the engine from
being restarted.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard and the vehicle starts
polluting the environment.
In the event of a confirmed SCR system
malfunction, it is essential to visit a dealer or a
qualified workshop. After 660 miles (1,100 km),
a device is automatically activated to prevent
the engine from starting.
In both cases, a range indicator indicates
the distance that can be travelled before the
vehicle is stopped.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater for the
AdBlue
® tank, allowing you to continue driving
in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped up
as soon as the first alert is issued indicating that
the reserve level has been reached.
For the correct operation of the SCR
system:
–

U

se only AdBlue
® fluid that meets the ISO
22241 standard.
–

Ne

ver transfer AdBlue
® to another container
as it would lose its purity.
–

Ne

ver dilute AdBlue
® with water.
You can obtain AdBlue
® from a dealer or a
qualified workshop, as well as service stations
equipped with AdBlue
® pumps specially designed
for passenger vehicles.
Recommendations on storage
AdBlue® freezes at about -11°C and deteriorates
above +25°C. Containers should be stored in a
cool area and protected from direct sunlight.
Under these conditions, the fluid can be kept for
at least a year.
If the fluid has frozen, it can be used once it has
completely thawed out at room temperature.