2016 Citroen DS4 check engine

283
DS4_en_Chap10_verifications_ed03-2015
Running out of fuel (Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel.
For all versions other than BlueHDi, refer to the
corresponding engine compartment view.Other Hdi engines
(except BlueHdi version)
For more information on the Diesel
misfuel prevention device, refer to the
corresponding section.
If the engine does not start first
time, don't keep trying but start the
procedure again from the beginning.
BlueHdi engines
F Fill the fuel tank with at least five litres of Diesel.
F

S
witch on the ignition (without starting the
engine).
F

W
ait around 6 seconds and switch off the
ignition.
F

R
epeat the operation 10 times.
F

O
perate the starter to run the engine. F

A
dd at least five litres of Diesel fuel to the
tank.
F

O
pen the bonnet.
F

I
f necessary, unclip the styling cover for
access to the priming pump.
F

S
queeze and release the priming pump
repeatedly until resistance is felt (there
may be resistance at the first press).
F

O
perate the starter to start the engine
(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).
F

I
f the engine does not start after a few
attempts, operate the priming pump again
then start the engine.
F

R
efit the styling cover and clip it in place.
F

C
lose the bonnet.
Checks

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.

285
DS4_en_Chap10_verifications_ed03-2015
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 reservoir.
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.

287
DS4_en_Chap10_verifications_ed03-2015
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 MIN mark, 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.

289
DS4_en_Chap10_verifications_ed03-2015
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

291
DS4_en_Chap10_verifications_ed03-2015
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