Citroen C5 2000 (DC/DE) / 1.G Owner's Manual

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Component (diagr.) Supplier Reference Observations
88 way connector. Flash eprom type sequential
Ignition injection ECU1BOSCHEDC 15C2 injection (reprogrammable eprom). Installed in the
ECU compartment.
FIRST3 way black connector. Installed in the front RH
Inertia switch34INERTIA Type 505wheelarch, fixed on the suspension mounting.
SWITCHManual rearming in the event of the cut-out system
being activated.
Injection double relay15BITRON 240 10915 way black connector. Installed in the ECU
compartment.
Battery14VA R TAL2 – 12 volts
400 ampsEngine compartment..
Atmospheric pressure sensor13BOSCHIncorporated in the injection ECU.
Central diagnostic socket36In the passenger compartment.
Diagnostic warning lamp35Incorporated in the dashboard instrument panel.
Vehicle speed sensor10EATON On the gearbox.
Preheater warning lamp40Incorporated in the dashboard instrument panel.
Rev counter39Incorporated in the dashboard instrument panel.
Consumption information 38Incorporated in the dashboard instrument panel.
Engine speed sensor2ELECTRIFIL
Camshaft position sensor3ELECTRIFIL Airgap value : 1,2 mm.
Electrical circuit

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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
Fuel circuit
Component (diagr.) Supplier Reference Observations
Recommended fuel Diesel
Fuel tank16Capacity = 65 Litres – Polyethylene.
Fuel tank17VDOElectric pump immersed in the tank.
Voltage: 12 volts – Pressure : 2 Bars
Fuel filter
18BOSCH0450907Fixing : on the engine.
Low pressure regulator Adjustment : 2,5 Bars
Fuel cooler19NOBEL
PLASTIQUEFixed under the bodyshell.
Fuel high pressure pump21BOSCHCP1The high pressure pump is driven by the timing
belt.
Diesel injectors23BOSCH9625542580
Fuel high pressure regulator31BOSCHFixed on the fuel high pressure pump.
Fuel high pressure pump 3rd piston
deactivator32BOSCHFixed on the fuel high pressure pump.
Fuel high pressure injection
common rail22BOSCH86313 On the engine (18 cc)
Fuel high pressure sensor7BOSCHD281022093 On the injection rail
Fuel temperature sensor6ELTHOn the injection rail
Fuel heater20Integral with the coolant outlet housing.

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Air filter24
Air flowmeter5SIEMENS
Turbocompressor25KKK
Inlet manifold pressure sensor4NIPPON
DENSON
Air/air heat exchanger26
EGR exhaust gas recycling
valve27PIERBORG Shim reference: violet
Turbo valve adjustment control
capsule28Integral with the turbocompressor
EGR recycling regulation
electrovalve29BOSCH
Turbo pressure regulation
electrovalve30BOSCH
Exhaust line33
Vacuum pump48
EGR butterfly housing electrovalve49
EGR butterfly housing50MAGNETI
MARELLI
161
INJECTION
Air circuit
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Summary
B1HP1BXP

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Component (diagr.) Supplier Reference Observations
88 way connector. Flash eprom type sequential
Ignition injection ECU19BOSCHEDC 15C2 injection (reprogrammable eprom). Installed in the
electronic ECUs compartment.
Injection double relay52BITRON 240 10915 way black connector. Installed in the electronic
ECUs compartment.
Battery51VA R TAL2 – 12 volts
Engine compartment.
400 amps
Atmospheric pressure sensor18BOSCHIncorporated in the injection ECU.
Central diagnostic socket50In the passenger compartment.
Diagnostic warning lamp27Incorporated in the dashboard instrument panel.
Vehicle speed sensor53EATON On the gearbox.
Preheater warning lamp26Incorporated in the dashboard instrument panel.
Rev counter24Incorporated in the dashboard instrument panel.
Trip computer23Incorporated in the dashboard instrument panel.
Engine speed sensor60ELECTRIFIL
Camshaft position sensor61ELECTRIFIL Airgap value : 1,2 mm.
Preheater unit57NAGARES 960411P
CARTIER 51299011
Preheater plug62CHAMPION CH170
BERU 0100226344
Electrical circuit

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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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INJECTION
Electrical circuit (continued)
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Component (diagr.) Supplier Reference Observations
Built-in systems interface (BSI)33
Cruise control safety switch35
Switching module
(under the steering wheel)37
Fuel cap presence sensor49
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Fuel circuit
Component (diagr.) Supplier Reference Observations
Recommended fuelDiesel
Fuel temperature sensor65MAGNETI
MARELLIOn the injection rail
Fuel high pressure sensor64BOSCHOn the injection rail
Fuel tank42Capacity = 68 Litres – Polyethylene
Fuel pump44VDOElectric pump immersed in the tank
Voltage : 12 V – Pressure : 2 Bars
Fuel filter
59BOSCHFixing on the engine
Low pressure regulator Adjustment : 2,5 Bars
Fuel cooler58NOBEL
PLASTIQUEFixed under the boyshell

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Fuel circuit (continued)
Component (diagr.) Supplier Reference Observations
Fuel heater45Integral with the coolant outlet housing.
Fuel high pressure pump67BOSCHThe fuel high pressure pump is driven by
the timing belt
Fuel high pressure common
injection rail63BOSCHOn the engine (18 cc).
Reference 1 on injector-carrier (Class 1 injector)
Reference 2 on injector-carrier (Class 2 injector)
Diesel injector69BOSCH963727798 Reference 3 on injector-carrier (Class 3 injector)
When changing a diesel injector-carrier, order a
component of the same class.
Fuel high pressure regulator66BOSCHFixed on the fuel high pressure pump.
Fuel high pressure pump 3rd piston
deactivator68BOSCHFixed on the fuel high pressure pump.

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INJECTION
Component (diagr.) Supplier Reference Observations
Air filter5PSA 7895
Air flowmeter4SIEMENS
Turbocompressor3ALLIED
SIGNAL
Inlet manifold pressure sensor76NIPPON
DENSEN
Air/air heat exchanger74
EGR exhaust gas recycling valve14PIERBURG Shim reference: violet
Turbo valve adjustment
control capsule13Integral with the turbocompressor
EGR recycling regulation
electrovalve12BOSCH
Turbo pressure regulation
electrovalve11BOSCH
Catalytic converter6
Vacuum pump48PIERBURG
EGR butterfly housing73
Butterfly housing electrovalve 75BOSCH
«SWIRL» electrovalve70EATON
«SWIRL» control diaphragm71MECAPLAST
EGR exhaust gas/coolant exchanger16Air circuit
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM