2018 CITROEN DS4 check engine

144
Moving off
F With your foot on the brake, select position P or N .
F

S
tart the engine.
If this procedure is not followed, an audible
signal is heard, accompanied by a message in
the instrument panel screen.
F

W
ith the engine running, press the brake
pedal.
F

Sel
ect position R , D or M.
If you do not press the brake pedal
when trying to move the gear selector
out of position P , this warning lamp or
this symbol appears in the instrument
panel accompanied by the flashing
of the P symbol, the display of a
message and an audible signal.
F Check that the display in the instrument panel agrees with the position engaged.
F

G
radually release the brake pedal.
If the parking brake is released manually, the
vehicle moves off immediately.
If the parking brake is applied and automatic
mode is activated, accelerate progressively. If the parking brake does not release
automatically, check that the front doors
are fully closed.
If position N is selected inadvertently while
driving, allow the engine to return to idle,
then select position D to accelerate.
When the engine is running at idle, with
the brakes released, if position R
, D or
M is selected, the vehicle moves even
without the accelerator being pressed.
Never leave children unsuper vised in the
vehicle when the engine is running.
When carrying out maintenance with the
engine running, apply the parking brake
and select position P .
Automatic operation
the profile of the road and the load in the
vehicle.
For maximum acceleration without touching
the selector, press the accelerator fully down
(kick-down). The gearbox changes down
automatically or holds the gear selected until
the maximum engine speed is reached.
On braking, the gearbox changes down
automatically to provide effective engine
braking.
If you release the accelerator sharply, the
gearbox will not shift to a higher gear for safety
reasons.
Never select position N while the vehicle
is moving.
Never select position P or R unless the
vehicle is completely stationary.
Sport and snow programmes
These two special programmes supplement the
automatic operation in very specific conditions
of use.
F

Sel

ect position D to change the six gears
automatically .
The gearbox then operates in auto-adaptive
mode, without any inter vention on the part
of the driver. It continuously selects the most
suitable gear according to the style of driving,
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Driving

146
Malfunction
When the ignition is on, a message appears
in the instrument panel screen to indicate a
gearbox fault.
In this case, the gearbox switches to back-up
mode and is locked in 3rd gear. You may feel a
substantial jolt when changing from P to R and
from N to R. This will not cause any damage to
the gearbox.
Do not exceed around 60 mph (100 km/h), local
speed restrictions permitting.
Have it checked by a network dealer or a
qualified workshop.There is a risk of damage to the gearbox:
-

i
f you press the accelerator and brake
pedals at the same time,
-

i
f you force the selector from position P
to another position when the battery is
flat.
To reduce fuel consumption when
stationary for long periods with the
engine running (traffic jam...), position
the gear selector at N and apply the
parking brake, unless it is programmed
in automatic mode.
Gear efficiency indicator
(Depending on engine.) System which reduces fuel consumption by
recommending the most appropriate gear.
Operation
Depending on the driving situation and your
vehicle's equipment, the system may advise
you to skip one (or more) gear(s). You can
follow this instruction without engaging the
intermediate gears.
Gear shift recommendations should not be
considered obligatory. The configuration of the
road, the amount of traffic and safety remain
determining factors when choosing the best
gear. The driver thus remains responsible
for deciding whether to follow or ignore the
system's instructions.
This function cannot be deactivated.
With an automatic gearbox, the system is
only active in manual mode. The system adapts its gear change
recommendation according to the
driving conditions (slope, load,...) and
the demands of the driver (power,
acceleration, braking,...).
The system never suggests:
-
e

ngaging first gear,
-
enga

ging reverse gear,
-
enga

ging a lower gear.
Example:
-
Y
ou are in third gear.
-
Y
ou press the accelerator pedal.
-
T
he system may suggest that you engage a
higher gear.
The information appears in the instrument
panel in the form of an arrow. With a manual gearbox, the arrow may be
accompanied by the gear recommended.
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Driving

148
With a manual gearbox in STOP mode, if
a gear is engaged without fully depressing
the clutch pedal, a warning lamp comes
on or an alert message is displayed asking
you to depress the clutch pedal to restart
the engine.
Special cases: START mode
activated automatically
As a safety measure or to maintain comfort
levels in the vehicle, START mode is activated
automatically when:
-
y
ou open the driver's door,
-
y

ou unfasten the driver's seat belt,
-

t
he speed of the vehicle exceeds 16 mph
(25 km/h) with a manual gearbox (2 mph
(3
km/h) with PureTech 130 petrol and
BlueHDi 115 and 120 Diesel versions), or
2
mph (3 km/h) with an automatic gearbox.
-

t
he electric parking brake is being applied,
-
s

ome special conditions (battery charge,
engine temperature, braking assistance,
exterior temperature...) require the engine to
be running to assure control of a system. In this case, the "
ECO" warning
lamp flashes for a few seconds then
goes off.
This operation is perfectly normal.
Deactivation
At any time, press the ECO OFF switch to
d eactivate the system.
This is confirmed by the switch warning lamp
coming on accompanied by the display of a
message.
If the system has been deactivated
in STOP mode, the engine restarts
immediately.
Reactivation
F Press the ECO OFF switch again.
The system is active again; this is confirmed
by the switch warning lamp going off and the
display of a message. The system is reactivated automatically
at every new start using the key or the
"START/STOP" button.
Operating fault
In the event of a malfunction with the system,
the ECO OFF switch warning lamp flashes,
then comes on continuously.
Have it checked in the dealer network or by a
qualified workshop.
In the event of a fault in STOP mode, the
vehicle may stall: all the instrument panel
warning lamps come on.
Depending on version, an alert message
may also be displayed asking you to put
the gear lever into position N and put your
foot on the brake pedal.
It is then necessary to switch off the
ignition, then restart the engine using the
key or the "START/STOP" button.
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167
If you have put in the wrong fuel for
your vehicle, you must have the fuel
tank drained and filled with the correct
fuel before star ting the engine.
Fuel cut-off
Your vehicle is fitted with a safety system that
cuts off the supply of fuel in the event of an
impact.
Misfuel prevention
(Diesel)
(Depending on the country of sale.)
Mechanical device which prevents filling the
tank of a Diesel vehicle with petrol. It avoids
the risk of engine damage that can result from
filling with the wrong fuel.
Located in the filler neck, the misfuel
prevention device appears when the filler cap
is removed.
Operation
When a petrol filler nozzle is introduced into
your Diesel tank, it comes into contact with the
flap. The system remains closed and prevents
filling.
Do not persist but introduce a Diesel type
filler nozzle.It remains possible to use a fuel can to fill
the tank.
In order to ensure a good flow of fuel,
do not place the nozzle of the fuel can in
direct contact with the flap of the misfuel
prevention device and pour slowly. Travelling abroad
As Diesel fuel pump nozzles may be
different in other countries, the presence
of the misfuel prevention device may make
refuelling impossible.
Not all Diesel vehicles are fitted with
misfuel protection, so before travelling
abroad, we recommend that you check
with the dealer network whether your
vehicle is suitable for the fuel pumps in the
country in which you intend to travel.
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Practical information

178
The location of the interior bonnet release
lever prevents opening of the bonnet when
the left-hand front door is shut.
Do not open the bonnet when there is a
very strong wind.
When the engine is hot, handle the
exterior safety catch and the stay with
care (risk of burns).
Closing
F Take the stay out of the support slot.
F C lip the stay in its housing on the back of
the bonnet.
F

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

P
ull on the bonnet to check that it is fully
latched.
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, etc.) be limited.
Engines
Petrol
Diesel
These engines are examples provided as a
guide.
The locations of the following elements may
vary:
-

A
ir filter.
-

E
ngine oil dipstick.
-

E
ngine oil filler cap.
-
P

riming pump. 1.
Power steering fluid reservoir.
2. Screenwash and headlamp wash
reservoir.
3. Engine coolant reservoir.
4. Brake fluid tank.
5. Battery/Fuses.
6. Fusebox.
7. Remote earth point.
8. A i r f i l t e r.
9. Engine oil dipstick.
10. Engine oil filler cap.
11. Priming pump*
The Diesel circuit is under very high
pressure.
All work on this circuit must be carried out
only in the dealer network or a qualified
workshop.
*
D
epending on engine.
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179
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 the dealer
network or a qualified workshop.The fluid must comply with the
manufacturer's recommendations and with
the vehicle's engine.
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).
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.
Return used oil to the dealer network or
a qualified workshop and dispose of it in
the containers reser ved for this purpose.
Engine oil level
The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles equipped with an
electric gauge, or using the dipstick.
To ensure that the reading is correct, your
vehicle must be parked on a level sur face
with the engine stopped for more than
30


minutes.
It is normal to top up the oil level between two
ser vices (or oil changes). We recommend that
you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
Checking using the dipstick
The location of the dipstick is shown in the
corresponding underbonnet layout view.
F
T
ake the dipstick by its coloured grip and
pull it out completely. 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 the dealer
network or a qualified workshop.
-
I
f the level is below the MIN
mark, you must
top up the engine oil.
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. 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 marks A and B .
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180
Topping up the engine oil level
F Locate the oil filler cap in the engine compartment of your vehicle.
For more information about petrol or Diesel
engine, refer to the corresponding section.
F

U
nscrew the oil filler cap to access the filler
opening.
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 ignition-triggered oil
level indicator in the instrument panel does not
provide a valid information during 30 minutes.
Engine oil change
Refer to the manufacturer's service schedule
for inter val details for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.
Brake fluid level
The brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Changing the coolant
Refer to the manufacturer's service schedule
for details of the inter val for this operation.
Fluid specification
This fluid must conform to the manufacturer's
recommendations.
Power steering fluid level
The fluid level should be close to
the "MA X" mark. Verify this, with the
engine off, by reading the level on
the filler neck.
Coolant level
Check the coolant level regularly.
It is normal to top up the fluid
between two services. To ensure that the reading is correct, your
vehicle must be parked on a level sur face with
the engine cool.
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 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 the risk of scalding when you need to
top up in an emergency, place a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.
Once the pressure has dropped, remove the cap
and top up the 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.
Fluid specification
The brake fluid must conform to the
manufacturer's recommendations.
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181
Screenwash/headlamp wash
level
To check the level or top up the fluid
on vehicles fitted with headlamp
washers, immobilise the vehicle and
switch off the engine.
F

O

pen the bonnet and secure it with the stay.
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
reser voir to read the level in the transparent
section.
F

T

op up if necessary.
F

R

efit the filler cap to the reser voir and close
the bonnet.
Fluid specifications
For optimum cleaning and to avoid freezing,
this fluid must not be topped up or replaced
with plain water.
In wintry conditions, using an ethyl alcohol or
methanol based fluid is recommended.
Diesel fuel additive level
(Diesel with particle filter)
According to your version of instrument panel,
the additive reser voir low level is indicated by:
Topping up
This additive must be topped up without
delay by a member of the dealer network or a
qualified workshop. -

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 Ser vice
warning lamp, accompanied
by an audible signal and a
message that the particle filter
additive level is too low.
Checks
Unless otherwise indicated, check these
components in accordance with the
manufacturer's service schedule and according
to your engine. .
Otherwise, have them checked by the dealer
network or a qualified workshop.
12 V battery
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.
For more information on the precautions
to take before starting work on the 12 V
battery , refer to the corresponding
section.
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 in the dealer network or a qualified
workshop.
07
Practical information