2000 Citroen C5 heating

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GENERAL
Engine type
Engine with filter change
EBetween Min. and Max.
5-speed gearbox
Automatic gearbox
After oil change
Braking circuit
Hydraulic circuit
Cooling system
Fuel tank capacity
CAPACITIES (in litres)
Diesel
Vehicle with air conditioning
ESSENTIAL : Systematically check the oil level using the oil dipstick
RHY RHZ 4HX
4.5 4.75
1.7 1.5
1.8 1.8
6 8.3
3 5.3
4.3
10.7 - 11.7 - (With additional heating).
68 2.0 HDi 2.2 HDi
Auto.
Auto.

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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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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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INJECTION
Component (diagr.) Supplier Reference Observations
Diagnostic warning lamp31Incorporated in the dashboard instrument panel.
Central diagnostic socket32In the passenger compartment.
Electronic immobiliser33
Consumption information 34Incorporated in the dashboard instrument panel.
Rev counter35Incorporated in the dashboard instrument panel.
Preheater warning lamp36Incorporated in the dashboard instrument panel.
Pre-postheating unit37NAGARES 960411P
CARTIER 735068
Preheater plugs38CHAMPION CH170
BOSCH0250202032
Cruise control switch39
Automatic gearbox ECU
40
Air conditioning compressor41SANDEN SD7V16
Additional heating by heating
42 a
elements in boiler42 b
Additional heating control
relay43
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Electrical circuit (continued)

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
159
Component (diagr.) Supplier Reference Observations
Preheater unit41NAGARES 960411P
CARTIER 735068
Preheater plugs42CHAMPION CH170
BOSCH0250202032
Coolant temperature sensor8ELECTRIFIL Fixed on the coolant outlet housing
Electronic immobiliser37
Accelerator pedal sensor9PHILIPS
Brake pedal switch 11 aOpen at rest
11 bClosed at rest
Clutch pedal switch12
Additional heating control relay
47
Additional heating46 a
Boiler heater elements46 b
Air conditioning compressor45
Automatic gearbox ECU44
Cruise control switch43

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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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RECOMMENDATIONS - PRECAUTIONS (AL 4 AUTOMATIC GEARBOX)
Engines : 6FZ - RFN - RHZ
Procedure to be followed prior to carrying out repairs on AL4 autoactive gearbox
CLUTCH
GEARBOX
DRIVESHAFTS
If a gearbox malfunction occurs, there are two possible configurations
depending on the seriousness of the fault :
- Gearbox in back-up mode with a replacement programme of
(the fault values are taken in substitution).
- Gearbox in back-up mode with an emergency programme
(3rd hydraulic).
WARNING : In the emergency programme, an impact is felt when
changing P/R, N/RandN/D.
Réception client.
Discuss with the customer, to find out all the malfunction symptoms..
Oil quality – Oil level.
If the gearbox has suffered a serious fault resulting in a malfunction or
the destruction of a clutch, the oil will overheat and become
contaminated with impurities : the oil is said to be «burnt».
This is characterised by a black colour and the presence of an
unpleasant smell.
ESSENTIAL : The gearbox must be replaced.Oil quality.
See corresponding operation.
An excessive oil level can result in the following consequences :
- Excessive heating of the oil.
- Oil leaks.
An insufficent level causes the destruction of the gearbox.
Top up the level of oil in the gearbox (if necessary).
Check using a diagnostic tool.
Read the fault codes (engine and gearbox).
Absence de codes défauts.
Carry out parameter measures, actuator tests and a road test.
Presence of fault codes.
Carry out the necessary repairs.
Delete the fault codes.
Carry out a road test to check the repair and, if need be, modify the
gearbox ECU parameters (this is essential after an initialisation of the ECU).

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ELECTRICAL
SYSTEM
2.0 HDiCHAMPION CH170 NAGARES 735068
CITROËN C5BOSCH 0250202032 CARTIER 960411-P Managed by the
2.2 HDiCHAMPION CH170 NAGARES 735068 diesel injection ECU
BERU 0100226344 CARTIER 960411-P
PRE-HEATING AND STARTING CIRCUITS
Vehicles / models
Pre-heater plugsPre-heater control unitPre-post-heating
(Pre-heating time at 20°C)