Citroen DS4 RHD 2015.5 1.G Owner's Manual
Page 281 of 436
279
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  
Page 282 of 436
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. 
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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  
Page 284 of 436
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. 
Page 285 of 436
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  
Page 286 of 436
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. 
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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  
Page 288 of 436
Additive level  
(
di
esel with particle filter)
To p p i n g  u p
The reservoir must be topped up without delay 
by a CITROËN dealer or a qualified workshop.
Used products
Avoid prolonged contact of used oil or 
fluids with the skin.
Most of these fluids are harmful to 
health or indeed very corrosive.
Do not discard used oil or fluids into 
sewers or onto the ground.
Take used oil to a CITROËN dealer or 
a qualified workshop (France) or to an 
authorised waste disposal site.
According to your version of instrument panel, 
the additive reservoir low level is indicated by:
-
 
f
ixed illumination of the particle 
filter warning lamp, accompanied 
by an audible signal and a 
message that the particle filter 
additive level is too low,
or
-
 
f
ixed illumination of the service 
warning lamp, accompanied by 
an audible signal and a message 
that the particle filter additive 
level is too low. 
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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  
Page 290 of 436
Particle filter (diesel)
On a new vehicle, the first operations 
of regeneration of the particle filter 
may be accompanied by the smell of 
"burning", which is per fectly normal.
Following prolonged operation of the 
vehicle at very low speed or at idle, 
you may, in exceptional circumstances, 
notice the emission of water vapour at 
the exhaust on acceleration. This does 
not affect the behaviour of the vehicle 
or the environment.
Manual gearbox
The gearbox does not require any 
maintenance (no oil change).
Refer to the manufacturer's service 
schedule for the checking interval for 
this component.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, refer to the 
"Additive level" section.
Automatic gearbox
The gearbox does not require any 
maintenance (no oil change).
Refer to the manufacturer's service 
schedule for details of the level 
checking interval for this component.