cooling Citroen C5 2000 (DC/DE) / 1.G User Guide

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106
COOLING SYSTEM SPECIFICATIONS
Engines : RHY-RHZ
(1) Venting chamber
(2) Heater matrix
(3) Coolant inlet housing
(4)Exhaust gas / coolant heat exchanger
(5)Bleed screw
(6)Cylinder block drain plug
(7) Coolant outlet housing
(8) Additional heating (Option or according to version)
(9) Radiator
(10) Coolant / oil heat exchanger
B1GP08EP

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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

Downloaded from www.Manualslib.com manuals search engine FEATURES OF MULTIPOINT INJECTION SYSTEM
Summary
(1) Air pump
(2) Power steering pressure sensor
(3) Engine management ECU
(4) Canister purge electrovalve
(5)Butterfly housing
(6)Idle regulation stepper motor
(7) Inlet air temperature sensor
(8)Inlet housing heater element
(9)Butterfly potentiometer
(10)Automatic gearbox (Option)
(11)Built-in systems interface
(12) Transponder
(13)Diagnostic connector
(14) Ignition injection test warning lamp
(15)Battery
(16)Immobiliser unit
(17) Air conditioning
(18) Instrument panel
(19)Fuel tank
(20)Fuel pump, gauge and filter assembly(21)Canister reservoir
(22) Downstream oxygen sensor
(23)Upstream oxygen sensor
(24)Air inlet valve
(25)EGR electrovalve
(26)Camshaft position sensor
(27) Ignition coil
(28)Sparking plug
(29) Injector supply rail
(30)Injectors
(31) Air inlet pressure sensor
(32) Engine coolant temperature sensor
(33) Engine speed sensor
(34)Cooling fan unit
(35) Knock sensor
B1HP1C5P
139
INJECTION

Downloaded from www.Manualslib.com manuals search engine FEATURES OF MULTIPOINT INJECTION SYSTEM
Summary
1)Accelerator pedal position sensor
(2)Denox catalyser downstream oxygen sensor
(3)Denox catalyser
(4)Downstream exhaust gas temperature sensor
(5)3-function precatalyser
(6)Precatalyser upstream oxygen sensor
(7) Upstream exhaust gas temperature sensor
(8)Petrol pressure regulator
(9)Petrol high pressure pump
(10)Knock sensor
(11) EGR electrovalve
(12)Canister purge electrovalve
(13)Motorised butterfly housing
(14)Canister reservoir
(15)Fuel pump and tank assembly
(16) Fuel tank
(17)Inlet air temperature sensor
(18) Inlet air pressure sensor(19)Engine coolant temperature sensor
(20) Sparking plug
(21) Ignition coil block
(22) High pressure injector
(23) Engine oil temperature sensor
(24)Engine speed sensor
(25)Inlet camshaft dephaser electrovalve
(26) Camshaft position sensor
(27)Petrol high pressure sensor
(28) Power steering pressure sensor
(29) Aircon fluid pressure sensor
(30)Cooling fan unit
(31)ABS block
(32)Clutch pedal sensor
(33)Brake pedal sensor
(34)Air conditioning ECU
(35) Engine management ECU
(36)Built-in systems interface BSI
(37)Rev counter
(38) Coded immobiliser
(39)Vehicle cruise control
(40) Diagnostic connector
B1HP1C6P
143
INJECTION

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INJECTION
FEATURES OF BOSCH ME 7.4.6 MULTIPOINT INJECTION SYSTEM
Summary
(1) Rev counter
(2)Consumption information
(3)Ignition injection test warning lamp
(4) Air conditioning ECU (according to equipment)
(5)Multifunction screen
(6)Built-in systems interface (BSI)
(7) Transponder
(8)Automatic gearbox ECU(according to equipment)
(9 Pump, fuel filter and pressure regulator assembly
(10)Battery
(11)Pressostat
(12)Engine speed sensor
(13)Camshaft position sensors (x2)
(14)Motorised butterfly housing
(15)Canister purge electrovalve
(16)Cooling fan unit
(17)Pencil type ignition coils (x2)
(18) Petrol injectors (x6)(19) Variable timing electrovalves (x2)
(20)Upstream oxygen sensors (x2)
(21) Downstream oxygen sensors (x2)
(22)Engine coolant thermal sensor
(23) Knock sensors (x2)
(24)Power steering pressure sensor
(25) Integral pressure sensor
(26)Accelerator pedal position sensor
(27)Inlet air thermal sensor
(28) Diagnostic connector
(29) Multifunction double relay
(30) Ignition injection ECU
B1HP1B2P

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Electrical circuit (continued)
Component (diagr.) Supplier Reference Observations
Coolant temperature sensor46ELECTRIFIL 962859028A Fixed on the coolant outlet housing
Accelerator pedal sensor54
Brake pedal switch36PHILIPS
56
Clutch pedal switch55
Additional heating control
relay1
Additional heating2 aOpen at rest
Boiler elements2 bClosed at rest
Air conditioning compressor 30
Automatic gearbox ECU22
Cruise control switch34
Heated rear screen20
ESP ECU21
«Service» warning lamp25
Cooling fan29
Fuel cap warning lamp28
Coolant temperature alert warning lamp31
Coolant temperature indicator32

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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