ring Citroen C4 2005 2.G Workshop Manual

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AXLES
SUSPENSION
STEERING
TIGHTENING TORQUES: POWER-ASSISTED STEERING
Tightening torques (m.daN).
Unions between pump unions and power steering valve: 2 ± 0.3
(16)Fixing screw: 2.2 ± 0.3
(17)Fixing screw: 2.2 ± 0.3
(18) Fixing screw: 2.2 ± 0.3
NOTE: Coat the threads with product «E3».
A pressure switch is implanted in the hydraulic piping between the high
pressure pump and the power steering valve.
- Opening pressure = 30 / 35 bars.
- Closing pressure = 25 barsminimum.
Tightening torque = 2 ± 0.2.
B3EP118D
XSARA PICASSO
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BRAKES
B3FP7EQC
BLEEDING AND FILLING THE BRAKING SYSTEM
Tools.
[1]Bleeding apparatus: «LURO» or similar
[2]LEXIA diagnostic tool: 4171-T
[3]PROXIA diagnostic tool: 4165-T
NOTE:Bleeding of the secondary braking circuit is done with the aid of diagnostic tools [2]and [3].
Draining of the brake fluid reservoir.
Remove the screws (3)and the battery tray (2).
Remove the filter of the brake fluid reservoir (4).
Drain the brake fluid reservoir (4)to the maximum extent
(if necessary, use a clean syringe).
Remove the screws (1).
Uncouple the clickfit union at «a».
Remove the brake fluid reservoir (4).
C4
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BRAKES
B3FP7EUC
BLEEDING AND FILLING THE BRAKING SYSTEM
Filling the braking circuit.
WARNING: Use only the approved and recommended hydraulic fluids.
IMPERATIVE: Only use new brake fluid that has not emulsified; avoid any introduction of
impurities into the hydraulic circuit.
Fill the brake fluid reservoir (4).
Bleeding the primary braking circuit.
WARNING: During the bleed operations: take care to maintain the level of the brake fluid
in the reservoir, keep it topped up.
WARNING: The ABS system must not be in action during the bleed operation.
WARNING: Respect the sequence for the opening of the bleed screws.
Front brake caliper : Bleed screw (8).
Rear brake caliper : Bleed screw (9).
Bleed each brake caliper, proceeding in the following sequence:
- Front LH wheel.
- Front RH wheel.
- Rear LH wheel.
- Rear RH wheel.
B3FP7ETC
C4
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BRAKESBLEEDING AND FILLING THE BRAKING SYSTEM
Bleeding the braking circuit without the bleed apparatus.
NOTE:Two operators are necessary.
For each brake circuit:
- Apply the brake pedal to place the circuit under pressure.
- Couple a transparent tube on the bleed screw.
- Submerge the other end of the tube in a clean container.
- Open the bleed screw.
- Wait until the fluid flows out without air bubbles.
- Close the bleed screw.
NOTE:Recommence the process a second timeif that is necessary.
Check the level of the brake fluid
(between the «DANGER»level and
the «MAXI»level).
Fill if necessary with the the approved and recommended synthetic
brake fluid.Bleeding the secondary braking circuit.
WARNING: During the bleed operations: take care to maintain the
level of the brake fluid in the reservoir, keep it topped up.
NOTE:The bleed apparatus [1]is still connected on the brake fluid
reservoir (4).
Use the diagnostic tools [2]or [3].
Select the menu corresponding to the vehicle:
- ABSmenu
(according to equipment).- ESPmenu (according to equipment).
Follow the instructions of the diagnostic tool.
At the end of the bleed programme, check the level of the brake fluid,
top up if necessary.
Check the travel of the brake pedal: it must not be excessive. If it is,
restart the bleed procedure.
C4
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BRAKES
BLEEDING THE BRAKING SYSTEMXSARA PICASSO
Tools Bleeding equipment of type «LURO» or similar.
IMPERATIVE: For bleeding the secondary circuit, use ELIT, LEXIA or PROXIA diagnostic tools.
Draining.
Drain the brake fluid reservoir as empty as possible using a syringe.
Disconnect the brake fluid warning lamp connector.
Retrieve the brake fluid reservoir from its supply pipes by pulling upwards.
Finish emptying the reservoir of brake fluid.
Clean the brake fluid reservoir.
Refit the brake fluid reservoir.
Reconnect the brake fluid warning lamp connector.
Filling.
Refill the reservoir with brake fluid.
WARNING: Use only the recommended hydraulic fluids.
Bleeding.
NOTE:Two technicians are required.
IMPERATIVE: During bleed operations, ensure that the level of brake fluid is maintained
in the reservoir and top it up, use only new brake fluid.
Bleed each wheel cylinder, proceeding in the following order:
- Rear right hand wheel.
- Front left hand wheel.
- Rear left hand wheel.
- Front right hand wheel.
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AIR
CONDITIONING
ESSENTIAL: The compressor lubricant is extremely hygroscopic; always use FRESH oil.
Checking the compressor oil level
There are three specific cases:
- 1/Repairs to a system without leaks.
- 2/Slow leak.
- 3/Fast leak.
1/ Repairing a system without leaks.
a) - Using draining/recovery equipment not fitted with an oil decanter.
- Drain the system as slowly as possible via the LOW PRESSUREvalve, so as not to lose any oil.
- No more oil should be added when filling the system with R 134.afluid.
b) - Using draining/filling equipment fitted with an oil decanter.
- Drain the R 134.afluid from the system in accordance with the instructions in the equipment handbook.
- Measure the amount of oil recovered.
- Add the same amount of NEWoil when filling the system with R 134.afluid.
c) - Replacing a compressor.
- Remove the old compressor, drain it and measure the oil quantity.
- Drain the new compressor
(supplied full), so that the same amount of NEWoil is left in the compressor as was in the old compressor.
- No more oil should be added when filling the system with R 134.a fluid.
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Compressor lubricant
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AIR
CONDITIONING
Checking the compressor oil level (continued)
2/ Slow leak.
Slow leaks do not lead to oil loss, therefore the same procedure should be followed as if there was no leak at all.
3/ Fast leak.
This type of leak causes both oil loss as well as allowing air to enter the system.
It is therefore necessary to:
- Replace the dehydrator.
- Drain as much oil as possible
(when replacing the faulty component).
Either before or during filling of the system with R 134.afluid, introduce 80 ccof NEWoil into the circuit.
When changing one of the following components, add the quantity stated:
- A drying bottle : 15 ccof compressor oil.
- A condenser or an evaporator : 20 ccof compressor oil.
- High pressure or low pressure pipework : 5 ccof compressor oil.
- A drying cartridge : 15 ccof compressor oil.
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
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CONDITIONING
434
C5HP1CKC
Changing the filtering/drying cartridge
The condenser (4)has a cylinder acting as a fluid reservoir with a filtering cartridge incorporated in it.
a:Inlet union
b:Outlet union
NOTE:The filtering cartridge cannot be swapped.
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)C4
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AIR
CONDITIONING
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Changing the filtering/drying cartridge
Tools.
[1]Charge station:
(according to workshop equipment)[2]TORX adaptor: TORX 70 FACOM
Removing.
Depressurise the aircon circuit, using tool [1].
Uncouple the hose (2).
Remove:
- The air filter assembly (3).
- The nuts (1).
Protect the radiator harness with strong cardboard cut to the dimensions of the radiator.
Move aside the cooling fan.
Remove:
- The screws (4).
- The brackets (5).
B1BP23FCB1BP23GC
XSARA PICASSO
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AIR
CONDITIONING
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Changing the filtering/drying cartridge
Move aside the radiator/condenser assembly.
Remove the plug (6), using tool [2].
Support the radiator/condenser assembly thus moved aside.
Remove the filtering/drying cartridge (7), using pliers.
Refitting.
Refit the filtering/drying cartridge (7).
Clean the threads of the plug (6).
It is essntial to change the O-ring seals (8).
Lubricate the O-ring seals (8)with aircon compressor oil.
Refit:
- The plug (6), using tool [2], tighten to 1,4 ± 0,2 m.daN.
- The brackets (5).
- The screws (4).
- The cardboard from the radiator harness.
- The nuts (1).
- The air filter assembly (3).
Couple the hose (2).
Recharge the circuit (R134.a)
(according to equipment) (see corresponding
operation).
Check the operation of the air conditioning.
C5HP14NCC5HP14PCC5HP14QC
XSARA PICASSO
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