2000 Citroen C5 Injection

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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

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Particle filter circuit
Component (diagr.) Supplier Reference Observations
WIMETAL
Particle filter7
TR PSA F002
Catalyser downstream temperature sensor8
Differential pressure sensor9KAVLICO
Catalyser upstream temperature sensor10
Additive ECU38MARWAL
Additive reservoir39
Additive minimum level sensor40
Additive injection pump41MARWAL
Cap (too full)47
Additive injector43MARWAL
Safety valve48
Inlet air heater butterfly72

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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)