2000 Citroen C5 Water

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88
CHECKING AND SETTING THE VALVE TIMING
Engine : 4HX
Setting the valve timing (continued).
Refit
- Retighten the screws (25) by hand.
- Turn the pinion (29)(clockwise)to the bottom of the buttonhole.
- Refit the belt on the crankshaft (28).
- Hold the belt, using tool[4].
- Reposition the timing belt, keeping the belt tight at «a», in the following order :
- Guide roller (27).
- Fuel high pressure pump pinion (30).
- Camshaft pinion (29).
- Water pump pinion (22).
- Tensioner roller (24).
NOTE : If needed, slightly turn the pinion (29)anti-clockwise(not by more
than one tooth).
- Remove the tool [4].
B1EP15CCB1EP15DDB1EP15BD

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103
COOLING SYSTEM SPECIFICATIONS
Engines : 6FZ - RFN
(1) Venting chamber.
(2) Water pump.
(3)Heater matrix.
(4)Bleed screw, heater matrix.
(5) Drain screw, cylinder cover.
(6)Water outlet housing.
(7)Bleed screw, water outlet housing.
(8)Drain screw, cooling radiator.
(9) Plug, cooling radiator.
(10)Cooling radiator.
Thermostat tightening : 1.7 ± 0.2 m.daN
B1GP08VP

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104
COOLING SYSTEM SPECIFICATIONS
Engine : RLZ
(1) Venting chamber
(2) Water pump
(3)Heater matrix
(4).Bleed screw, heater matrix
(5)Drain screw, cylinder block
(6) Coolant outlet housing
(7) Bleed screw, coolant outlet housing
(8) Bleed screw, top hose.
(9) Cooling radiator.
(10) Drain screw, cooling radiator
(11)Drain screw, cooling radiator.
Thermostat tightening : 1.7 ± 0.2m.daN
B1GP08JP

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105
COOLING SYSTEM SPECIFICATIONS
Engine : XFX
(1)Heater matrix
(2)Venting chamber
(3) Thermostat.
(4) Coolant outlet housing
(5) Coolant inlet housing
(6) Engine cooling radiator
(7) Venting chamber
(8) Bleed screw
(9) Water / oil exchanger
(10) Thermostat
(11) Thermostat(Coolant outlet housing)
(12) Thermal switch
(10). (11)and (12): Tightening 1.7 ± 0.4 m.daN
B1GP041P

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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
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

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CONDITIONING
252
CHECKING PRESSURES (continued)
Low pressure
too low
- Insufficient fluid charge.
- Constriction of the HP system.
- Dirty pressure control valve.- Cooling fan speed unsuitable.
- Faulty compressor.- Faulty pressure control valve.
- Faulty compressor.
- Faulty compressor.
- Dirty evaporator.- Circuit normal. - Cooling fan speed unsuitable.
- Faulty pressure control valve.
- System blocked.
- Water in the system.- Presence of solid matter in the
system.
- Dirty condenser.- Excessive fluid charge.
- Dirty condenser.
- Faulty pressure control valve.
- Cooling fan speed unsuitable. High pressure
too low
High pressure
normal
High pressure
too highLow pressure
normalLow pressure
too high
Checking the pressure at temperatures between 15°C and 35°C for information only.
In general, the pressure should be approximately :
- forR134.afluid, less than 2 Bars(Low pressure), and between 13and 24 Bars(High pressure).
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM