2000 Citroen C5 Air

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107
COOLING SYSTEM SPECIFICATIONS
Engine : 4HX
(10)Heater matrix
(2) Coolant inlet housing.
(3) Exhaust gas / coolant heat exchanger
(4) Bleed screw
(5)Coolant outlet housing.
(6)Additional heating (Option or according to version)
(7) Radiator
(8)Air / coolant heat exchanger
(9) Coolant / oil heat exchanger
(10) Venting chamber
B1GP08HP

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110
FILLING AND BLEEDING THE COOLING CIRCUIT
TOOLS
[1] Filling cylinder: 4520-T
[2]Adaptor for filling cylinder: 4222-T.
ESSENTIAL : Respect the safety and cleanliness recommendations.
- The draining and refilling operations can be carried out by means of a WINN’S coolant replacement
apparatus or similar; it is essential to follow the instructions when using this apparatus.
Filling and bleeding
- Fit the cylinder adaptor [2] 4222-Tand the filling cylinder [1] 4520 -T.
- Use the coolant to ensure protection between - 15°Cand - 37°C.
- Slowly fill the system.
NOTE :Keep the cylinder filled up (visible level).
- Close each bleed screw as soon as the coolant flows without air bubbles.
- Start the engine : Engine speed 1500 rpm.
- Maintain this speed until the third cooling cycle (cooling fans have cut in and cut out).
- Stop the engine and allow it to cool down.
- Remove the filling cylinder [1] 4520-T and the adaptor [2] 4222-T.
- Top up the system to the maximum mark, with the engine cold.
- Refit the filler cap.
E5AP1GNCB1GP00AC

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INJECTIONEmission standard Engine type
Make
Injection type
PETROL INJECTION
Air temperature sensor resistive
value (ohms)
Petrol
Fuel pressure (bars)
Overspeed cut-off (rpm)
Injection cut-in during
deceleration (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper motor
resistive value (ohms)
1.8i 16V 2.0i 16V 3.0i V6
6FZ RFN RLZ XFX
L4 - IF/L5 IF/L5 L4 IF/L5
SAGEM MAGNETTI MARELLI SIEMENS BOSCH
S2000 MM. 48P SIRIUS 81 ME 7.4.6.
3.5 3.5 5 3.5
6520
1100
12.2 14.5 1.88 16
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
Stepper motor : 53
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C

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INJECTION
PROHIBITED OPERATIONS: HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
Cleaning.
- The use of high pressure cleaners is prohibited.
- Do not use compressed air.
Fuel supply circuit.
- Required fuel : diesel.
Electric circuit.
- Swapping injection ECUs Between two vehicles will render it impossible to start either vehicle.
- It is forbidden to supply a diesel injector with 12 volts.
High pressure fuel pump.
Do not separate the following components from the high pressure fuel pump (5):
- Sealing ring (b)(no replacement parts).
- High pressure outlet connector (a)(will cause a malfunction).
PS : HDi = High pressure diesel injection.
B1HP19LC

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INJECTION
SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
SAFETY REQUIREMENTS
Preamble.
All interventions on the injection system must be carried out to conform with the following requirements and regulations :
- Competent health authorities.
- Accident prevention.
- Environmental protection.
WARNING :Repairs must be carried out by specialised personnel informed of the safety requirements and of the precautions to be taken.
Safety requirements.
IMPERATIVE : Take into account the very high pressures in the high pressure fuel circuit (1350 bars), and respect
the requirements below :
- No smoking in proximity to the high pressure circuit when work is being carried out.
- Avoid working close to flame or sparks.
Engine running :
- Do not work on the high pressure fuel circuit.
- Always stay clear of the trajectory of any possible jet of fuel, which could cause serious injuries.
- Do not place your hand close to any leak in the high pressure fuel circuit.
After the engine has stopped, wait 30 secondsbefore any intervention.
NOTE :This waiting time is necessary in order to allow the high pressure fuel circuit to return to atmospheric pressure.

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INJECTION
AIR SUPPLY CIRCUIT SPECIFICATION
Engine : RHY
(1) Air filterPSA 7899.
(2) FlowmeterSIEMENS
(3)Water / recycled gas exchangerVALEO
(4) E.G.R. valvePURFLUX
(5) Turbocharger KKK K03
(6) Air butterflyMAGNETI MARELLI
48W7 Ref. 648
B1HP1A6D

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INJECTION
(7) Air / air heat exchanger VALEO.
(8) Turbocharger KKK K03.
(9)EGR valvePURFLUX.
(10)Air butterflyMAGNETI MARELLI
48W7 Ref. 648.
(11)Air filter PSA 7899.
(12) Turbocharging pressure sensorNIPPON DENSO.
AIR SUPPLY CIRCUIT SPECIFICATION
Engine : RHZ
B1HP1A7P

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INJECTION
AIR SUPPLY CIRCUIT SPECIFICATION
Engine : 4HX
(1) Air / air exchanger
(2) Air / water exchanger
(3) Warm air metering device BOSCH.
(4) Cold air metering deviceBOSCH.
(5) Turbocharger ALLIEDSIGNAL GT1549P.
(6) FlowmeterSIEMENS.
(7) Air filter PSA 7885.
B1HP1BYP