engine Citroen C5 DAG 2010.5 (RD/TD) / 2.G Repair Manual

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162
C H E C K S
BLEEDING THE DIESEL FUEL FILTER
Protective cover
Removal of the cover Bleeding water from the fuel
filter
Bleed regularly (at each oil change).
To bleed the water, slacken the bleed
screw or the water in diesel fuel sen-
sor, located at the base of the fi lter.
Continue until all the water has
fl owed out.
Then retighten the bleed screw or
the water detection sensor.

HDi 110, HDi 160 and
V6 HDi 240 engines

 Pull the protective cover upwards
to remove it.

HDi 140 engine

 Remove the protective cover
by first unclipping at 3 , then 1
and 4 .

 Unclip at 2 by pulling towards
you, then lift up. Refi tting

 Firstly clip in at 2 .

 Lower and centre the cover.

 Clip in at 3 and 4 , pushing verti-
cally and gently from the rear.

 Clip in at 1 pushing vertically.

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163
C H E C K S
RUNNING OUT OF FUEL (DIESEL)
HDi 110 engine

 Unclip the protective cover to gain
access to the priming pump. HDi 140 and HDi 160 engines

 Unclip the protective cover to gain
access to the priming pump.
Priming the fuel system
In the event of running out of fuel:

 after fi lling (minimum 5 litres)
and removing the protective cover,
operate the manual priming pump,
until some resistance is felt,

 operate the starter motor while
depressing the accelerator pedal
slightly until the engine starts. HDi engines make use of ad-
vanced technology.
All maintenance and repairs re-
quire special qualifi cations which
only a CITROËN dealer can guar-
antee.
V6 HDi 240 engine with electric
pump
In the event of running out of fuel:

 after adding fuel, turn the ignition
key to position M , wait for a few
seconds,

 operate the starter motor until
the engine starts.
If the engine fails to start after sev-
eral attempts, contact a CITROËN
dealer.
If the engine fails to start at the fi rst
attempt, wait fi fteen seconds before
trying again.
If the engine fails to start after a few
attempts, operate the priming pump
again and then try to start the en-
gine.
When the engine is idling, acceler-
ate slightly to complete the bleeding
of the circuit.

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164
C H E C K S
PETROL ENGINES
The various caps and covers allow
access for checking fl uid levels and
for replacing certain components.

1. Screenwash and headlamp wash
reservoir.

2. Power steering fl uid reservoir or
power steering and suspension
fl uid reservoir.

3. Engine coolant header tank.

4. Engine oil dipstick.

5. Engine oil fi ller cap.

6. Brake fl uid reservoir.

7. Battery.

8. Air fi lter.

1.6i THP

1.8i 16V

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165
C H E C K S
Vehicles fi tted with the 2.0i
16v engine may be fi tted
with metal suspension. In this
case, a different power steering
fl uid reservoir is fi tted.

2.0i 16V
1. Screenwash and headlamp wash
reservoir.

2. Power steering fl uid reservoir or
power steering and suspension
fl uid reservoir.

3. Engine coolant header tank.

4. Engine oil dipstick.

5. Engine oil fi ller cap.

6. Brake fl uid reservoir.

7. Battery.

8. Air fi lter.

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166
C H E C K S
DIESEL ENGINES
The various caps and covers allow
access for checking fl uid levels, for
replacing certain components and
for priming the fuel system.

1. Screenwash and headlamp wash
reservoir.

2. Power steering fl uid reservoir or
power steering and suspension
fl uid reservoir, depending on
equipment.

3. Engine coolant header tank.

4. Engine oil dipstick.

5. Engine oil fi ller cap.

6. Air fi lter.

7. Brake fl uid reservoir.

8. Battery.
As the Diesel fuel system op-
erates under high pressure,
any work on the fuel system
is prohibited.
Vehicles fi tted with the HDi 140 en-
gine may be fi tted with metal springs.
In this case, a different power steer-
ing fl uid reservoir is fi tted.

HDi 110

HDi 140

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167
C H E C K S
HDi 160 - V6 HDi 240 engines
(with particle filter)

1. Screenwash and headlamp wash
reservoir.

2. Power steering and suspension
fl uid reservoir.

3. Engine coolant reservoir.

4. Engine oil dipstick.

5. Engine oil fi ller cap.

6. Air fi lter.

7. Brake fl uid reservoir.

8. Battery.

9. "+" and "-" terminals for starting
with a slave battery.
As the Diesel fuel system op-
erates under high pressure:
- Any work on the fuel system is prohibited.
- HDi engines make use of ad- vanced technology.
All maintenance and repairs re-
quire special qualifi cations which
only a CITROËN dealer can guar-
antee.

HDi 160

V6 HDi 240

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168
C H E C K S
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 manufac-
turer'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 regular-
ly. Fluid which has been used exces-
sively may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and meet the DOT4 standard.
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.
Check this level also between each
scheduled service and before long
journeys.
Take care when doing anything un-
der the bonnet, as some parts of the
engine can be extremely hot (risk of
burns). The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
In order to maintain the reli-
ability of the engine and emis-
sion control system, the use
of additives in the engine oil is
prohibited. Power steering fluid or power
steering and suspension
fluid level
This fl uid must be topped up
by a CITROËN dealer.
Dipstick
There are 2 marks on the
dipstick:
-
A = max; never exceed
this level,
- B = min; top up the
level via the oil fi ller
cap, using the type
of oil suited to your
engine.

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169
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 water.
Reservoir capacities:
- screenwash: approximately 3.5 li-tres,
- screenwash and headlamp wash: approximately 6.15 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 u-
ids 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 stop the
vehicle.
Coolant level
Coolant change
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations. The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the tem-
perature of the coolant is regulated
by the fan. This can operate 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.

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170
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 cor-
rectly tightened, particularly
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" section).
A clogged passenger compartment
fi lter may have an adverse effect on
the performance of the air condition-
ing system and generate undesir-
able odours.
Oil filter
Replace the oil fi lter each
time the engine oil is
changed. Particle 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 occasionally no-
tice water vapour being emitted from
the exhaust when accelerating. 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 instrument
panel display, accompanied by an
audible signal and lighting of the
service warning lamp.
This alert tells you that the particle
fi lter is starting to fi ll up (in condi-
tions of urban driving of excep-
tionally long duration: low speeds,
traffi 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 re-
placement interval for this component.
The presence of this label, in par-
ticular with the Stop & Start system,
indicates the use of a specifi c 12 V
lead-acid battery with special tech-
nology and specifi cation, for which
the involvement of a CITROËN
dealer is required when replacing or
disconnecting the battery.
Failure to observe this recommen-
dation may cause premature wear
of the battery.

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171
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).
Automatic gearbox The gearbox does not re-
quire 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 system 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 quality
and specifi cations.
Do not use a dry cloth with an abra-
sive product for the maintenance of
aluminium parts; use a sponge and
soapy water.
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
level checking interval for this com-
ponent.