2014.5 Citroen DS4 RHD engine

247
Checks
Air filter and passenger compartment filter
Oil filter
Unless other wise indicated, check these components in accordance with the manufacturer's service schedule and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.
Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.
The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specific 12 V lead-acid
battery with special technology and
specification. The involvement of
a CITROËN dealer or a qualified
workshop is essential when replacing
or disconnecting the battery.
12 V battery
When carrying out work on the battery, refer
to the "12 V battery" section for details of the
precautions to be taken before disconnecting
the battery and following its reconnection.
The battery does not require any maintenance.
However, check that the terminals are clean
and correctly tightened, particularly in summer
and winter.
Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often
if necessary
.
A clogged passenger compartment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
Checks

Once the AdBlue® tank is empty,
a s
ystem required by regulations
prevents starting of the engine.
If the SCR

is faulty, the level of
emissions from your vehicle will no
longer meet the Euro 6 standard: you
vehicle becomes polluting.
In the event of a confirmed fault
with the SCR system, you must go
to a CITROËN dealer or a qualified
workshop as soon as possible: after a
running distance of 650 miles
(1 100 km), a system will be triggered
automatically to prevent engine
starting.
AdBlue® additive and SCR system
for BlueHDi Diesel engines
To assure respect for the environment and
conformity with the new Euro 6 emissions
standard, without adversely affecting the
per formance or fuel consumption of Diesel
engines, CITROËN has taken the decision to
equip its vehicles with an effective system that
associates SCR (Selective Catalytic Reduction)
with a particle filter (FAP) for the treatment of
exhaust gases.
Presentation of the SCR system
Using an additive called AdBlue® containing urea, a
catalytic converter turns up to 85% of nitrous oxides
(NOx) into nitrogen and water, which are harmless
to health and the environment.
The AdBlue® additive is held in a special
tank located under the boot at the rear of
the vehicle. It has a capacity of 17 litres: this
provides a driving range of about 12 500 miles
(20 000 km), after which an alert is triggered
warning you when the reserve remaining is
enough for just 1 500 miles (2 400 km).
During each scheduled service of your vehicle
by a CITROËN dealer or a qualified workshop,
the AdBlue
® additive tank is refilled in order to
allow normal operation of the SCR system.
If the estimated mileage between two services
is greater than 12 500 miles (20 000 km), we
recommend that you go to a CITROËN dealer
or a qualified workshop to have the necessary
top-up carried out.

251
The engine start prevention system
required by regulations is activated
automatically once the AdBlue
® tank
is empty.
Range indicators
When switching on the ignition, an indicator
gives an estimate of the distance that can
be travelled with your vehicle before engine
starting is automatically prevented, once the
vehicle starts using the reserve of AdBlue
® or
after a fault is detected with the SCR system.
In the event of simultaneous system fault and
low AdBlue
® level, the shortest range is the one
displayed.
In the event of the risk of non-starting related to a lack of AdBlue®
Range greater than 1 500 miles (2 400 km)
When the ignition is switched on, no
information on range is displayed automatically
in the instrument panel.
With the type 2 instrument panel,
pressing this button temporarily
displays the driving range.
Above 3 000 miles (5 000 km), the value is not
specified.
Type 1 instrument panel
Remaining range between 350 and 1500 miles (600 and 2 400 km)
When switching on the ignition, the UREA
warning lamp comes on, accompanied by an
audible signal and the temporary display in
the instrument panel of "NO START IN" and
a distance, indicating the remaining range
expressed in miles or kilometres before engine
starting is prevented - (For example "NO
START IN 900 miles" means that "Starting will
be prevented in 900 miles).
When driving, this display appears every
150
miles (300 km) until the additive tank has
been topped-up.
Go to a CITROËN dealer or a qualified
workshop to have the AdBlue
® tank topped-up.
You can also top-up the tank yourself.
Refer to the "Topping-up" section.
Checks

When switching on the ignition, the SERVICE
warning lamp comes on and the UREA
warning lamp flashes, accompanied by an
audible signal and the temporary display in
the instrument panel of "NO START IN" and
a distance indicating the remaining range
expressed in miles or kilometres before engine
starting is prevented - (For example "NO
START IN 350 miles" means "Starting will be
prevented in 350 miles).
When driving, this display appears every
30 seconds until the additive tank has been
topped-up.
Go to a CITROËN dealer or a qualified
workshop to have the AdBlue
® tank topped-up.
You can also top-up the tank yourself.
Refer to the "Topping-up" section.
Other wise you will not be able to restart your
engine.
Remaining range between 0 and 350 miles (0 and 600 km)
When switching on the ignition, the SERVICE
warning lamp comes on and the UREA
warning lamp flashes, accompanied by an
audible signal and the temporary display in the
instrument panel of "NO START IN" and
0 km or miles - ("NO START IN 0 miles" means
"Starting prevented").
The AdBlue
® tank is empty: the system required
by regulations prevents engine starting.
Breakdown related to a lack of AdBlue® additive
To be able to start the engine,
we recommend that you call on
a CITROËN dealer or a qualified
workshop for the top-up required. If
you carry out the top-up yourself, it is
essential to add at least 3.8 litres of
AdBlue
® to the additive tank.
Refer to the "Topping-up" section.

253
Type 2 instrument panel
When switching on the ignition, the
UREA warning lamp comes on, accompanied
by an audible signal and the display of a
message (e.g.: "Top up emissions additive:
Starting prevented in 900 miles") indicating
the remaining range expressed in miles or
kilometres.
When driving, the message is displayed every
150 miles (300 km) until the additive tank has
been topped-up.
Go to a CITROËN dealer or a qualified
workshop to have the AdBlue
® tank topped-up.
You can also top-up the tank yourself.
Refer to the "Topping-up" section.
Remaining range between 350 and 1500 miles (600 and 2 400 km)
When switching on the ignition, the SERVICE
warning lamp comes on and the UREA warning
lamp flashes, accompanied by an audible
signal and the display of a message (e.g. "Top
up emissions additive: Starting prevented in
350 miles") indicating the remaining range
expressed in miles or kilometres.
When driving, the message is displayed every
30 seconds until the additive tank has been
topped-up.
Go to a CITROËN dealer or a qualified
workshop to have the AdBlue
® tank topped-up.
You can also top-up the tank yourself.
Refer to the "Topping-up" section.
Other wise you will not be able to restart your
engine. When switching on the ignition, the SERVICE
warning lamp comes on and the UREA warning
lamp flashes, accompanied by an audible
signal and the display of the message "Top up
emissions additive: Starting prevented".
The AdBlue
® tank is empty: the system required
by regulations prevents engine starting.
To be able to start the engine,
we recommend that you call on
a CITROËN dealer or a qualified
workshop for the top-up required. If
you carry out the top-up yourself, it is
essential to add at least 3.8 litres of
AdBlue
® to the tank.
Refer to the "Topping-up" section.
Remaining range between 0 and 350 miles (0 and 600 km)Breakdown related to a lack of AdBlue® additive
Checks

In the event of a fault with the the SCR emissions control system
A system that prevents engine starting is activated automatically from 650 miles (1 100 km) after confirmation of a fault with the SCR emissions
control system. Have the system checked by a CITROËN dealer or a qualified workshop as soon as possible.
The UREA, SERVICE and diagnostic warning
lamps comes on, accompanied by an audible
signal and the display of the message
"Emissions fault".
The alert is triggered when driving, when
the fault is detected for the first time, then
when switching on the ignition for subsequent
journeys, while the fault persists. In the event of the detection of a fault
If it is a temporary fault, the alert
disappears during the next journey,
after a self diagnosis test of the SCR
emissions control system. If a fault with the SCR system is confirmed

(after 30 miles (50 km) covered with the
permanent display of the message signalling
a fault), the SERVICE and engine diagnostic
warning lamps come on and the UREA warning
lamp flashes, accompanied by an audible signal
and the temporary display in the instrument
panel of "NO START IN" and a distance,
indicating the remaining range express in
miles or kilometres before engine starting is
prevented
- (e.g.: "NO START IN 350 miles"
means "Starting will be prevented in 350 miles"). During an authorised driving phase
(between 650 miles and 0 miles) (1 100 km and 0 km)
While driving, this display appears every
30 seconds while the fault with the SCR system
persists.
The alert is repeated when switching on the
ignition.
You should go to a CITROËN dealer or a
qualified workshop as soon as possible.
Other wise, you will not be able to restart your
engine.
Type 1 instrument panel

255
Starting preventedYou have exceeded the authorised
driving limit: the starting prevention
system inhibits engine starting.
Every time the ignition is switched on, the
SERVICE and engine diagnostic warning
lamps come on and the UREA warning lamp
flashes, accompanied by the temporary display
of "NO START IN" and 0 miles or kilometres
-
("NO START IN 0 miles" means "Starting
prevented").
To be able to start the engine, you must call on
a CITROËN dealer or a qualified workshop.Type 2 instrument panel
A system that prevents engine
starting is activated automatically
from 650
miles (1 100 km) after
confirmation of a fault with the SCR
emissions control system. Have the
system checked by a CITROËN dealer
or a qualified workshop as soon as
possible.
In the event of a fault with the the SCR emissions control system
The UREA, SERVICE and diagnostic warning
lamps comes on, accompanied by an audible
signal and the display of the message
"Emissions fault".
The alert is triggered when driving when the
fault is detected for the first time, then when
switching on the ignition for subsequent
journeys, while the fault persists. In the event of the detection of a fault
If it is a temporary fault, the alert
disappears during the next journey,
after self-diagnosis of the SCR system.
Checks

Freezing of the AdBlue® additive
The AdBlue
® additive 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.
If a fault with the SCR system is confirmed

(after 30 miles (50 km) covered with the permanent
display of the message signalling a fault), the
SERVICE and engine diagnostic warning lamps
come on and the UREA warning lamp flashes,
accompanied by an audible signal and the display
of a message (e.g.: "Emissions fault: Starting
prevented in 150 miles") indicating the remaining
range express in miles or kilometres.
While driving, the message is displayed every
30 seconds while the fault with the SCR system
persists.
The alert is repeated when switching on the
ignition.
You should go to a CITROËN dealer or a qualified
workshop as soon as possible.
Other wise, you will not be able to restart your
engine. During an authorised driving phase (between
650 miles and 0 miles) (1 100 km and 0 km)Every time the ignition is switched on, the SERVICE
and engine diagnostic warning lamps come on and
the UREA warning lamp flashes, accompanied by
an audible signal and the display of the message
"Emissions fault: Starting prevented".
Starting prevented
You have exceeded the authorised
driving limit: the starting prevention
system inhibits engine starting.
To be able to start the engine, you must call on
a CITROËN dealer or a qualified workshop.