2017 Citroen DS4 engine

242
Bonnet
Opening
F Pull 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, deactivate 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.
F

O

pen the front left door.
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DS4_en_Chap07_info-pratiques_ed01-2016
Petrol engines
1. Power steering fluid reservoir.
2. Screenwash and headlamp wash fluid
reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery / Fuses.
6.
F

usebox.
7.
R

emote earth point (-).
8.
A

ir filter.
9.
E

ngine oil dipstick.
10.
E

ngine oil filler cap.
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244
Diesel engines
1. Power steering fluid reservoir.
2. Screenwash and headlamp wash fluid
reservoir.
3.
C

oolant header tank.
4.
B

rake fluid reservoir.
5.
B

attery / Fuses.
6.
F

usebox.
7.
R

emote earth point (-).
8.
A

ir filter.
9.
E

ngine oil dipstick.
10.
E

ngine oil filler cap.
11.
P

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

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

HDi engines make use of advanced technology.All maintenance and repairs require
specially trained staff, which only a
CITROËN dealer can provide.
* According to engine.
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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).
The location of the dipstick is shown in the
corresponding underbonnet layout view.
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.
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.
Checking using the dipstick
F Refit 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 .
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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
The location of the oil filler cap is shown in the
corresponding underbonnet layout view.
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.
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Coolant level
Check the coolant level regularly.
It is normal to top up this fluid
between services.
To ensure that the measurement is reliable, the
vehicle must be parked on level ground and the
engine must be cold.
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.
The coolant level should be close to the "MA X"
mark but should never exceed it.
If the level is close to or below the "MIN" mark,
it is essential to top up.
A low coolant level presents a risk of serious
damage to your engine. When the engine is hot, the temperature of the
coolant is regulated by the fan.
When the engine is hot, as the cooling system is
pressurised, wait at least one hour after switching
off the engine before carrying out any work.
To avoid the risk of scalding in the event of
an urgent need to top up, with a cloth around
the cap, unscrew it by two turns to allow the
pressure to drop.
Once the pressure has dropped, remove the
cap and top up the level.
Fluid specification
The coolant must conform to the
manufacturer's recommendations.
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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
F Open the bonnet and secure it with the st ay.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.
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.
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Particle filter (Diesel)
According to your version of instrument panel, the start of
saturation of the particle emissions filter is indicated by:
- temporary illumination of the service warning lamp,
accompanied by an audible signal
and a message that there is a risk
of blockage of the particle filter.
-

f
ixed illumination of the particle
filter warning lamp, accompanied
by an audible signal and a
message that there is a risk of
blockage of the particle filter,
or
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 40 mph (60 km/h) until the warning lamp
goes off.
If the warning lamp stays on, there is a lack of
additive.
Checking components
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.
Versions equipped with Stop &
Start are fitted with a 12 V lead-acid
battery of specific technology and
specification.
Its replacement should be carried
out only by a CITROËN dealer or a
qualified workshop.
12 V battery
For more information and the precautions to
take before starting work on the 12 V batter y
,
refer to the corresponding section.
The battery does not require any maintenance.However, check regularly that the
terminals are correctly tightened
(versions without quick release terminals)
and that the connections are clean.
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.
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Practical information