2000 Citroen C5 fuel pressure

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INJECTION
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Component (diagr.) Supplier Reference Observations
Recommended fuelDiesel
Fuel temperature sensor5ELTHOn the injection rail
Fuel high pressure sensor6BOSCHD281022093 On the injection rail
Fuel tank15Capacity = 68 litres.
Composition : Polyethylene.
Fuel pump16VDOElectric pump immersed in the tank. Voltage 12V.
Pressure : 7 Bars.
Fuel filter
17BOSCH0450907Fixing : on the engine.
Low pressure regulator Adjustment : 2,5 bars.
Fuel cooler18LON Fixed under the bodyshell.
Fuel heater19Integral with the coolant outlet housing.
Fuel high pressure pump20BOSCHCPThe fuel high pressure pump is driven by
the timing belt
Fuel high pressure injection
common rail21BOSCH86313 On the engine (18 cc).
Fuel circuit

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INJECTION
Component (diagr.) Supplier Reference Observations
Diesel injectors22BOSCH9625542580Reference 1 –Blue marking : injector Class 1.
Reference 2 – Green marking : injector Class 2.
If changing a diesel injector-carrier, order a
component of the same class.
Fuel high pressure regulator27BOSCHFixed on the fuel high pressure pump.
Fuel high pressure pump 3rd piston
deactivator28BOSCHFixed on the fuel high pressure pump.
Air circuit
Component (diagr.) Supplier Reference Observations
Air flowmeter4SIEMENS
Air filter23PSA 7899
Turbocompressor24KKK /
Exhaust gas recycling valve
(EGR)25PIERBURG Shim reference: violet.
Recycling regulation electrovalve
(EGR)26BOSCH
Exhaust line29
Vacuum pump44
EGR butterfly housing46MARK IV
EGR butterfly housing electrovalve45BOSCH
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Fuel circuit (continued)

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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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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.