2004 Citroen C2 Air pressure

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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines: 8HV 8HY 9HZ 9HY
Tools.
[1] Ø 10 mmlow pressure connector: 4215T.
[2]Pressure gauge for testing boost pressure: 4073T.A Tool kit 4073T
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel
injection engines.
Remove the air filter duct.
Link tool [1]in series, downstream of the injectors, between the fuel high pressure pump
and the fuel filter at «a»and «b».
WARNING:Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
ESSENTIAL: Check that the tool [2] is clean.
Check the negative pressure according to the table below:
VacuumObservations
10 ±05 cmhg
Engine driven by the starter motor
20 ± 20 cmhg
60 ± 05 cmhgEngine running under full load
Supply circuit obstructed
(full tank
strainer, piping, fuel filter).B1BP2PHC
C3 XSARA PICASSO

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tools.
[1]
Manual pressurevacuum pump: FACOM DA 16
Vacuum pump:
Connect the tool [1]onto the vacuum pump (1).
Start the engine.
Wait 30 seconds.
The vacuum value should be
0.9 ±0.1 barat idle.
B1HP1K8D
Engines: 8HX 8HW 8HY 8HV
C2 C3

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Engines: RHY RHZ
XSARA PICASSO
Tools.
[1]Manual vacuum pump : FACOM DA 16
IMPERATIVE: Respect the safety and cleanliness requirements.
Vacuum pump.
Connect the tool [1]on the vacuum pump (1).
Start the engine.
Pressure should be
0.8 barat 780 rpm.Boost pressure regulator electrovalve. Connect the tool [1]between the electrovalve (2)and the valve (3)of the boost pressure
regulator.
Compare readings with the values in the table below.
Pressure regulator valve. Connect the tool [1]on the valve (3).
Appy a pressure of 0.5 barto activate the rod "a":
Rod "a"should be moved 12 mm.
Engine speed (rpm) Pressure (Bar)
780 0,6
4000 0,25
B1HP12FD

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INJECTION
PARTICLE FILTER SAFETY AND CLEANLINESS REQUIREMENTS
General.
ESSENTIAL: Given the very high pressures prevailing in the fuel high pressure circuit (1600 Bars), respect the following regulations.
It is forbidden to smoke in the immediate proximity of the high pressure circuit during a repair.
Avoid working close to flames or sparks.When the engine is running:
Do touch the fuel high pressure circuit.
Always keep out of range of possible projections of fuel, which could cause serious injuries.
Do not place your hand near to any leak on the fuel high pressure circuit. After the engine has stopped, wait 30 seconds before starting any operation.
NOTE:The waiting time is necessary to allow the fuel high pressure circuit to return to atmospheric pressure.
Safety rules.
IMPERATIVE:Wait at least an hour before starting any repair on the exhaust line.
Forced regeneration of the particle filter:
Check that there are no aerosols or inflammable products inside the vehicle’s boot.
Wear high temperature gloves.
Connect the vehicle to a gas extractor approved for this type of operation.
IMPERATIVE: In the absence of the required installations, carry out the forced regeneration of the particle filter outside the workshop,
in a concreted area well away from any inflammable materials. Place the vehicle in the high position.
ALL TYPES

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INJECTION
PARTICLE FILTER SAFETY AND CLEANLINESS REQUIREMENTS
Operations on the fuel additive circuit.
IMPERATIVE: For all operations on the additive circuit, wear protective goggles and gloves that are resistant to hydrocarbons.
The work area must be ventilated.
In the event of any significant dispersion of additive:
Wear a breathing mask for filtering the particles.
Recover as much of the product as possible.
Place the product thus recovered in an appropriately labelled container. Wash the soiled area with copious amounts of water.
Dispose of materials and solid residues in an authorised recovery point.
IMPERATIVE:The filling kit should be recycled following a repair. All «Eolys» additive containers that have been opened should be
disposed of.
Cleanliness rules.
ESSENTIAL: The operator should wear clean overalls.
Before working on the injection circuit, it may be necessary to clean the unions of the following sensitive components(see corresponding operations).
Fuel filter.
Fuel high pressure pump.
Fuel high pressure regulator.
Fuel high pressure common injection rail. Fuel high pressure piping. Diesel injector carriers.
IMPERATIVE: After dismantling, immediately blank the unions of the sensitive components with plugs, to prevent any ingress of impurities.
ALL TYPES

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BRAKES
B3FP160C
BLEEDING AND FILLING THE BRAKING SYSTEM (Continued)
With the bleeding apparatus.
Connect the bleeding apparatus [1]on the brake fluid reservoir (1).
Adjust the apparatus pressure to
2 Bars.
For each circuit:
Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container.
Open the bleed screw, wait until the fluid is flowing out without air bubbles. Close the bleed screw.
Remove the bleeding apparatus
[1].
Check the brake fluid level
(should be between «MINI»level and «MAXI»level).
Fill if necessary with the approved and recommended synthetic brake fluid.
Without the bleeding apparatus.
NOTE:Two operators are necessary.
For each circuit:
Apply the brake pedal to place the circuit under pressure.
Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container.
Open the bleed screw, wait until the fluid is flowing out without air bubbles.
Close the bleed screw. Remove the tool
[1].
NOTE:Recommence the process a second time if that is necessary.
Check the brake fluid level
(should be between «MINI»level and «MAXI»level).
Fill if necessary with the approved and recommended synthetic brake fluid.
C2

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BRAKES
BRAKE SPECIFICATIONS
Evolution: rear wheel cylinder (applies from RPO 9667)
C3 C3 Pluriel
Evolution.
New wheel cylinders at the rear, with cutoff pressure 27 bars instead of 35 bars.
Assembly.
(1)
Rear wheel cylinder.
Repair.
IMPERATIVE:The mixing of the old and new components is STRICTLY FORBIDDEN.
WARNING:
Identify the type of assembly prior to starting a repair.
ESSENTIAL: Systematically replace the wheel cylinders on both sides on the same axle.
Replacement parts.
Replacement Parts will market only the components for the new assembly.
C3 C3 PLURIEL

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BRAKES
B3FP160C
BLEEDING AND FILLING THE BRAKING SYSTEM (Continued)
With the bleeding apparatus.
Connect the bleeding apparatus [1]on the brake fluid reservoir (1).
Adjust the apparatus pressure to
2 Bars.
For each circuit:
Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container.
Open the bleed screw, wait until the fluid is flowing out without air bubbles.
Close the bleed screw.
Remove the bleeding apparatus
[1].
Check the brake fluid level
(should be between «MINI»level and «MAXI»level).
Fill if necessary with the approved and recommended synthetic brake fluid.
Without the bleeding apparatus.
NOTE:Two operators are necessary.
For each circuit:
Apply the brake pedal to place the circuit under pressure.
Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container. Open the bleed screw, wait until the fluid is flowing out without air bubbles.
Close the bleed screw.
Remove the tool
[1].
NOTE:Recommence the process a second time if that is necessary.
Check the brake fluid level
(should be between «MINI»level and «MAXI»level).
Fill if necessary with the approved and recommended synthetic brake fluid.
C3 C3 PLURIEL