2015.5 Citroen DS4 RHD check engine

Bonnet
Opening
F Open the front left door.
F P ull the interior bonnet release lever A ,
located at the bottom of the door aperture. F

P
ush the exterior safety catch B to the left
and raise the bonnet.
F
U
nclip the stay C from its housing on the
back of the bonnet.
F

F
ix the stay in the notch to hold the bonnet
open.
The location of the interior bonnet
release lever prevents opening of
the bonnet while the front left door is
closed. Do not open the bonnet in high winds.
When the engine is hot, handle the
exterior safety catch and the bonnet
stay with care (risk of burns).
Before doing anything under the
bonnet, switch off the Stop & Start
system to avoid any risk of injury
resulting from an automatic change to
START mode.
Closing
F Take the stay out of the support notch.
F
C lip the stay in its housing on the back of
the bonnet.
F

L
ower the bonnet and release it at the end
of its travel.
F

P
ull on the bonnet to check that it is
secured correctly.
The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might be caught by the fan
blades.
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing,
...) be limited.

281
Petrol engines
The various caps and covers allow access for
checking the levels of the various fluids and for
replacing certain components.
1.
P
ower steering reservoir.
2.
S

creenwash and headlamp wash reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery/Fuses.
6.
F

usebox.
7.
A

ir filter.
8.
E

ngine oil dipstick.
9.
E

ngine oil filler cap.
Checks

Diesel engines
The various caps and covers allow access for
checking the levels of the various fluids, for
replacing certain components and for priming
the fuel system*.
1.
P
ower steering reservoir.
2.
S

creenwash and headlamp wash reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery / Fuses.
6.
F

usebox.
7.
A

ir filter.
8.
E

ngine oil dipstick.
9.
E

ngine oil filler cap.
10.
P

riming pump*.
* According to engine. The Diesel fuel system operates under
high pressure:
-

N
ever carry out any work on this
system yourself.
-

H
Di engines make use of advanced
technology.
All maintenance and repairs require
specially trained staff, which only a
CITROËN dealer can provide.

283
Checking levels
Check all of these levels regularly, in line with the manufacturer's service schedule. Top them up if necessary, unless other wise indicated.
If a level drops significantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.
Engine oil level
It is normal to top up the oil level between
two services (or oil changes). CITROËN
recommends that you check the level, and top
up if necessary, every 3 000 miles (5 000 kms).The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles so equipped, or
using the dipstick.
Take care when working under the
bonnet, as certain areas of the engine
may be extremely hot (risk of burns)
and the cooling fan could start at any
time (even with the ignition off).
Checking using the dipstick
F Locate the dipstick in the engine
compartment of your vehicle.
For more information on the petrol or Diesel
engine, refer to the corresponding section.
F

T
ake the dipstick by its coloured grip and
remove it completely.
F

W
ipe the end of the dipstick using a clean
non-fluffy cloth.
F

R
efit the dipstick and push fully down, then
pull it out again to make the visual check:
the correct level is between the marks A
and B .
A = MA X
B = MIN If you find that the level is above the A mark or
below the B mark, do not star t the engine
.
-

I
f the level is above the MAX mark (risk
of damage to the engine), contact a
CITROËN dealer or a qualified workshop.
-

I
f the level is below the MI n
m
ark, you
must top up the engine oil.
To ensure that the reading is correct,
your vehicle must be parked on a level
sur face with the engine having been off
for more than 30 minutes.
Oil grade
Before topping-up the oil or changing the oil,
check that the oil is the correct grade for your
engine and conforms to the manufacturer's
recommendations.
Checks

Power steering fluid level
The power steering fluid level should
be close to the "MA X" mark. With
the engine cold, unscrew the cap to
check the level.
Brake fluid level
Changing the fluid
Refer to the manufacturer's service schedule
for details of the interval for this operation.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations.The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Topping-up the engine oil level
F Locate the oil filler cap in the engine
compartment of your vehicle.
For more information on the petrol or Diesel
engine, refer to the corresponding section.
F

U
nscrew the oil filler cap to reveal the filler
aperture.
F

A
dd oil in small quantities, avoiding any
spills on engine components (risk of fire).
F

W
ait a few minutes before checking the
level again using the dipstick.
F

A
dd more oil if necessary.
F

A
fter checking the level, carefully refit the
oil filler cap and the dipstick in its tube.
After topping-up the oil, the check when
switching on the ignition with the oil level
indicator in the instrument panel is not valid
during the 30 minutes after topping up.
Engine oil change
Refer to the manufacturer's service schedule
for details of the interval for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.

285
Coolant level
The coolant level should be close
to the "MA X" mark but should never
exceed it.
Fluid specification
The coolant must conform to the
manufacturer's recommendations.To check the level or top up the
fluid on vehicle fitted with headlamp
washers, immobilise the vehicle and
switch of the engine.
Screenwash / headlamp
wash fluid level
The cooling fan may star t after
switching off the engine: take care
with articles and clothing that might
be caught by the fan blades.
When the engine is warm, the temperature of
the coolant is regulated by the fan.
In addition, as the cooling system is pressurised,
wait at least one hour after switching off the
engine before carrying out any work.
To avoid any risk of scalding, unscrew the cap
by two turns to allow the pressure to drop. When
the pressure has dropped, remove the cap and
top up the level.
F
O
pen the bonnet and secure it with the
st ay.
F
O
pen the screenwash reservoir filler cap.
F
T
ake and pinch the level gauge to block its
breather.
F
R
emove the gauge completely from
the reservoir to read the level in the
transparent section.
F
T
op up if necessary.
F
R
efit the filler cap to the reservoir and
close the bonnet.
Specification of the fluid
To ensure optimum cleaning and to avoid
freezing, the fluid should never be topped up or
replaced by plain water.
In wintry conditions, the use of a fluid
with an ethyl alcohol or methanol base is
recommended.
Checks

287
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

291
The engine start prevention system
required by regulations is activated
automatically once the AdBlue
® tank
is empty.
Range indicators
Once the AdBlue® tank is on reserve or after
detection of a fault with the SCR emissions
control system, when the ignition is switched
on, an indicator displays an estimate of the
distance that can be covered, the range, before
engine starting is prevented.
In the event of simultaneous system fault and
low AdBlue
® level, the shortest range figure 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 dealer CITROËN or a qualified
workshop to have the AdBlue
® tank topped-up.
You can also top-up the tank yourself.
For more information on topping-up the
AdBlue
® additive, refer to the corresponding
section.
Checks