engine Citroen C4 PICASSO 2009 1.G Repair Manual

156
X
C H E C K S
BONNET
Protects the components of the
engine and provides access for
checking levels.
Opening
 Push the exterior control B to the
left and raise the bonnet.

 Unclip the strut C from its housing.

 Fix the strut in the notch to hold
the bonnet open. Closing

 Take the strut out of the support
notch.

 Clip the strut in its housing.

 Lower the bonnet then slam it
fi rmly at the end of its travel.

 Pull on the bonnet to check that
it is secured correctly.
The location of the interior control
prevents opening of the bonnet
while the driver's door is closed.
This operation must only be carried
out when the vehicle is stationary.
Avoid opening the bonnet in strong
winds.

 Open the driver's door.

 Pull the interior control A , located
at the bottom of the door frame.

158
X
C H E C K S
RUNNING OUT OF FUEL (DIESEL)
HDi 138 engine
Detach the protective cover for ac-
cess to the priming pump. HDi 110 engine
Detach the protective cover for ac-
cess to the priming pump. Priming the fuel circuit
In the event of running out of fuel:

 after fi lling (minimum 5 litres),
squeeze the manual priming
pump repeatedly, until some re-
sistance is felt,

 then operate the starter, gently
pressing the accelerator until the
engine starts.
If the engine fails to start at the fi rst
attempt, wait 15 seconds before
trying again.
If the engine fails to start after a few
attempts, repeat the procedure from
the beginning. When the engine is
idling, accelerate gently to complete
the purge of the circuit.
HDi engines are of a highly
technical nature.
All maintenance and re-
pairs require specifi c qualifi cations
which only your CITROËN dealer
can guarantee.

159
X
C H E C K S
PETROL ENGINES
The covers and caps allow you access for checking the level of the various fl uids and for replacing certain components.

1. Screenwash and headlamp
wash reservoir.

2. Coolant header tank.
3. Brake fl uid reservoir.

4. Battery/Fuses.

5. Fuse box.
6. Engine oil dipstick.

7. Engine oil fi ller cap.

160
X
C H E C K S * According to engine.
DIESEL ENGINES
The covers and caps allow you access for checking the level of the various fl uids, for replacing certain components and
for repriming the fuel.

1. Screenwash and headlamp
wash reservoir.

2. Coolant header tank

3. Brake fl uid reservoir.

4. Battery/Fuses.
5. Fuse box.

6. Engine oil dipstick.

7. Engine oil fi ller cap.

8. Priming pump * .

9. Degas screw * . As the diesel circuit is pres-
surised, any work on this
circuit is prohibited.

161
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer.
Oil level
Oil change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. Oil specifi cation
The oil must correspond to your en-
gine and conform to the manufactur-
er's recommendations.
Brake fluid level
Fluid change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation.
This fl uid must be changed regu-
larly. Fluid which has been used for
too long may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and fulfi l the DOT4 standards.
Coolant level
Draining the system
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
The reading will only be
correct if the vehicle is on
level ground and the engine
has been off for more than
15 minutes.
The check is carried out either when
the ignition is switched on using the
oil level indicator on the instrument
panel, or using the dipstick.
Between two oil changes, the con-
sumption should not exceed 0.5 litre
per 600 miles (approx. 1 000 km).
Check this level also between each
scheduled service and before long
journeys. The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm,
the temperature of the coolant is
regulated by the fan. This can oper-
ate with the ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate after the vehicle has
been switched off, even if the en-
gine is cold.
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, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

162
X
C H E C K S
Screenwash and headlamp
wash fluid
Fluid specifi cation
For optimum cleaning and to avoid
freezing, this fl uid must not be topped
up or replaced with plain water.
Reservoir capacities:
- screenwash: approximately 3 li- tres,


- screenwash and headlamp wash: approximately 6 litres. Diesel additive level (Diesel
engine with particle emission
filter)
A low additive level is indicated by
lighting of the service warning lamp,
accompanied by an audible warning
and a message on the multifunction
screen.
Topping up
This additive must be topped up by
a CITROËN dealer without delay.

Used products
Avoid prolonged contact of
used oil or fl uids with the
skin.
Most of these fl uids are harmful to
health or indeed very corrosive.
Do not discard used oil or
fl uids into sewers or onto
the ground.
Take used oil to a CITROËN deal-
er (France) or an authorised waste
disposal site.
In the case of vehicles fi tted
with headlamp washers, the
minimum level of this fl uid is
indicated by an audible sig-
nal and a message on the multifunc-
tion screen.
Top up the level when you next stop
the vehicle.

163
X
C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and according to your en-
gine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not re-
quire any maintenance.
However, check that the
terminals are clean and
correctly tightened, particu-
larly in summer and winter.
When carrying out work on the bat-
tery, refer to the "Practical infor-
mation" section for details of the
precautions to be taken before dis-
connecting the battery and following
its reconnection.
Air filter and passenger compartment filter
Refer to the Maintenance
and Warranty Guide for
details of the replacement
intervals for these compo-
nents.
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
(refer to the "Engines" paragraph).
A clogged cabin fi lter may have an
adverse effect on the performance
of the air conditioning system and
generate undesirable odours.
Oil filter
Replace the oil fi lter each
time the engine oil is
changed. Particulate filter system
(Diesel)
Complementary to the catalytic
converter, this fi lter makes an ac-
tive contribution to the preservation
of air quality by the retaining of the
unburnt pollutant particles. Black
exhaust fumes are thus no longer
emitted.
After prolonged idling or driving at
very low speeds, you may occasion-
ally notice water vapour being emit-
ted from the exhaust when acceler-
ating. This is of no consequence to
the running of the vehicle or to the
environment.
If there is risk of clogging, a mes-
sage appears on the multifunction
screen, accompanied by an audi-
ble signal and lighting of the serv-
ice warning lamp.
This alert tells you that the particle
fi lter is starting to fi ll up (in condi-
tions of urban driving of exception-
ally long duration: low speeds, traf-
fi c jams etc.)
To regenerate the fi lter, it is advised
to drive as soon as possible, when
traffi c conditions permit, at a speed
of 40 mph (around 60 km/h) or
more for at least fi ve minutes (until
the alert message disappears).
If this alert persists, consult a
CITROËN dealer.
Refer to the Maintenance and
Warranty Guide for details of the
replacement interval for this compo-
nent.

164
X
C H E C K S
Brake pads Brake wear depends on
the style of driving, par-
ticularly in the case of ve-
hicles used in town, over
short distances. It may be
necessary to have the condition of
the brakes checked, even between
vehicle services.
Unless there is a leak in the circuit, a
drop in the brake fl uid level indicates
that the brake pads are worn.
Manual gearbox
The gearbox does not re-
quire any maintenance (no
oil change).
6-speed electronic gearbox
system
The gearbox does not require any
maintenance (no oil change).
Automatic gearbox
The gearbox does not require any
maintenance (no oil change). Brake disc wear
For information relating to
checking the brake disc
wear, contact a CITROËN
dealer.
Parking brake
If a loss of effectiveness of this sys-
tem is noticed, the parking brake
must be checked, even between two
services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent qual-
ity and specifi cations.
In order to optimise the operation
of units as important as the braking
system, CITROËN selects and of-
fers very specifi c products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compartment
is strictly prohibited .
Refer to the Maintenance and
Warranty Guide for the details of the
level checking interval for this com-
ponent.
Refer to the Maintenance and
Warranty Guide for details of the
checking interval for this component.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this com-
ponent.

182
XI
P R A C T I C A L I N F O R M A T I O N
Fuses in the engine
compartment
Access to the fuses

 Detach and remove the cover.

After any operation, carefully re-
close the cover. If the cover is not
correctly positioned or not prop-
erly closed, this could cause seri-
ous problems on your vehicle. For
the same reason, take care not to
spill any liquid in the fusebox.
All work on the maxi-fuses,
which are located in these
fuseboxes and which give
extra protection, must be carried
out by CITROËN technicians.

191
XII
T E C H N I C A L D A T A

MODELS:
ENGINES AND GEARBOXES

Model codes:
UA... UE... UD...
5FW-C 5FX-H/P 5FT-F RFJ-F

PETROL ENGINES
1.6
L
VTi 16V
120
hp
1.6
L
THP 16V
150
hp
1.6
L
THP 16V
140
hp
2
L
16V 143
hp
Cubic capacity (cm 3
) 1 598 1 598 1 997
Bore x stroke (mm) 77 x 85.8 77 x 85.8 85 x 88
EU standard maximum power (kW) 88 110 103 103
Maximum power engine speed (rpm) 6 000 5 800 6 000 6 000
EU standard maximum torque (Nm) 160 240 200
Maximum torque engine speed (rpm) 4 250 1 400 4 000
Fuel Unleaded Unleaded Unleaded
Catalytic converter Yes Yes Yes

GEARBOXES Manual
(5-speed)
Electronic gearbox system
(6-speed) Auto.
(4-speed) Auto.
(4-speed)

OIL CAPACITIES (in litres)
Engine (with fi lter replacement) 4.25 4.25 4.25 5
Gearbox - Final drive 1.9 - - -

UA...: Grand C4 Picasso (7-seat). UE...: Grand C4 Picasso (5-seat). UD...: C4 Picasso (5-seat).