lock Citroen C5 2000 (DC/DE) / 1.G Owner's 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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INJECTION
SAFETY REQUIREMENTS : HDi DIRECT INJECTION SYSTEM
Engines : RHY - RHZ - 4HX
CLEANLINESS REQUIREMENTS.
Preliminary operations
IMPERATIVE : The technician should wear clean overalls.
Before working on the injection system, it may be necessary to clean the apertures of the following sensitive components :
(refer to corresponding procedures).
- Fuel filter.
- High pressure fuel pump.
- Third piston deactivator.
- High pressure regulator.
- High pressure sensor.
- High pressure fuel injection common rail.
- High pressure fuel pipes
- Diesel injector carriers.
IMPERATIVE : After dismantling, immediately block the apertures of the sensitive components with plugs, to avoid the entry of impurities.
Work area.
- The work area must be clean and free of clutter.
- Components being worked on must be protected from dust contamination.

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INJECTION
CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines : RHY - RHZ - 4HX (continued)
Checks on pressure : dynamic.
Engine running, at idle (normal functioning):
- Fuel supply pressure shown by the pressure gauge [3] = 2 ± 0.4 Bar.
- Fuel return pressure shown by the pressure gauge [3] = 0.8 ± 0.4 Bar.
Abnormal functioning
Impossible to start the engine :
Fuel supply pressure less than 0.8 Bar:
- Check the low pressure regulator incorporated in the filter(locked open)
- Check the high pressure pump distribution valve (locked shut)Check : diesel injector return flow. (Table below)
Uncouple the diesel injector return pipe.
Fuel supply pressure Fuel return pressure Checks
Between 3.3et 4 Bars 0.8 ± 0.4 BarCheck the condition of the diesel filter
More than 4 Bars
More than 4 BarsLess than 0.8 Bar
More than 0.8 BarCheck the low pressure regulator incorporated in
the filter (locked shut) : replace.
Check the fuel return circuit (pipe pinched or trapped...).
Between 0.8et 1.5 BarLess than 0.8 BarCheck the fuel suppy circuit :
- Booster pump(low pressure), piping.
Check :
Observe :
The flow should be drop by drop
Diesel injector functioning correctly
Excessive fuel return
Diesel injector locked shut.

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INJECTION
CHECKS : EXHAUST GASES RECYCLING CIRCUIT
Engines : RHZ – RHY
EGR valve
- Connect tool [1]on the EGR valve capsule take-off (2).
- Apply a vacuum of approx.0,6 barto activate the EGRvalve.
- In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
- Repeat the operation several times.
Butterfly housing
- Remove the air duct between the air/air exchanger and the butterfly housing (5),(1).
- Connect tool[1]on the butterfly housing vacuum capsule (1).
- Apply a vacuum of approx. 0,8 bar, the flap (a)of the butterfly housing(1)should be closed.
B1HP1BWCB1BP2ADC

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INJECTION
CHECKS : EXHAUST GASES RECYCLING CIRCUIT
Engine : 4HX
EGR valve
- Connect tool[1]on the take-off (a)of the EGR valve capsule (2).
- Apply a vacuum of approx. 0,6 barto activate the EGRvalve.
- In abruptly suppressing the vacuum, the valve should click and lock itself back on its seating.
- Repeat the operation several times.
Butterfly housing
- Remove the air duct between the air/air exchanger and the butterfly housing (1).
- Disconnect the tube (white marking)on the electrovalve (4)(black connector).
- Connect tool[1]on the tube with the white marking.
- Apply a vacuum of approx. 0,8 bar, the flap (b)of the butterfly housing (1) should be closed.
B1BP29NCB1BP29PC

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INJECTION
FEATURES OF MULTIPOINT INJECTION SYSTEM
Electrical circuit
(diagr.) Component Supplier Reference Observations
3
26
35
32
33
2
28
27Engine management ECU
with «FRIC»
Camshaft position sensor
Knock sensor
Engine coolant temperature sensor
Engine speed sensor
Power steering pressure sensor
Sparking plug
Ignition coilSAGEM
MAGNETI
MARELLIS2000
MM 48.P2
(1)
144323
F 207 326
257 603 2A
14 43 32
402 244 03
14 43 27
280 291
RFN52HZ
FR8ME
BBC2.2NDE
2 526 118 ELECTRIFIL
SIEMENS
SAGEM (1)
ELECTRIFIL
DAV
ELECTRIFIL
BITRON
(1)= EngineRFN
Ignition circuit
SAGEM
BOSCH
SAGEM
«Flash» eprom (reprogrammable eprom), sequential injection,
112 way connector.
3 way grey connector, fixed on the cylinder head
2 way black connector, fixed on the front part of the engine
block, tightening torque 2 ± 0.5 m.daN.
2 way green connector, fixed on the coolant outlet housing,
tightening torque 1.8 ± 0.1 m.daN.
2 way black connector, fixed on the clutch casing.
2 way blue connector, fixed on the power steering high pressure
pump outlet tube, tightening torque 2 ± 0.2 m.daN.
Electrode gap = 1mm.
Tightening torque 2.5 ± 0.2 m.daN.
4 way black connector.

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

Downloaded from www.Manualslib.com manuals search engine FEATURES OF MULTIPOINT INJECTION SYSTEM
Electrical circuit
(diagr.) Component Supplier Reference Observations
35Engine management ECU
with «FRIC»
26Camshaft position sensor
10Knock sensor
9Engine coolant temperature
sensor
1Accelerator pedal position sensor
24Engine speed sensor
28Power steering pressure sensor
25Inlet camshaft dephaser electrovalve.112 way connector.
3 way grey connector, fixed on the cylinder head.
2 way black connector, fixed on the front part of the engine
block.
ESSENTIAL:Respect the tightening torque 2,5±0,5 m.daN.
2 way green connector, fixed on the coolant outlet housing.
4 way black connector, fixed on the pedal carriage.
2 way black connector, fixed on the clutch casing.
2 way blue connector, fixed on the power steering high pressure
pump outlet tube, tighten to 2 ± 0,2 m.daN.
2 way green connector, fixed on the upper part of the cylinder
head. SIEMENS
ELECTRIFIL
SIEMENS
ELECTRIFIL
BITRON
UNISIASIRIUS 81
F207 326
145
INJECTION

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INJECTION
FEATURES OF MULTIPOINT INJECTION SYSTEM
Ignition circuit
(diagr.) Component Supplier Reference Observations
20Sparking plug
21Ignition coil block
12EGR electrovalve
4 and 7Exhaust gas temperature
sensor
6Precatalyser upstream proportional
oxygen sensor
2Catalytic converter downstream
oxygen sensorElectrode gap = 1 mm.
Tighten to 2,5 ± 0,2 m.daN.
6 way black connector.
6 way grey connector, installed on the cylinder head.
2 way brown connector, length of wire : 250 mm.
Tighten to 4,5 ± 0,4 m.daN.
6 way black connector, length of wire : 250 mm.
Tighten to 4,5 ± 0,4 m.daN.
4 way blue connector. BOSCH
BNA - R13-318
BBC 4.1 HP
2580105A
TS-200
LZA-A06-U1
OZA 538-PG1 DELPHI
SAGEM
HERAEUS
NGKExhaust system

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INJECTION
FEATURES OF BOSCH ME 7.4.6 MULTIPOINT INJECTION SYSTEM
Electrical circuit
(diagr.) Component Supplier Reference Observations
30Ignition injection ECU
29Multifunction double relay
(incorporated in the engine fusebox)
24Power steering pressure sensor
27Inlet air thermal sensor
13Camshaft position sensor
23Knock sensor
22Engine coolant thermal sensor
12Engine speed sensor128 way connector, flash eprom type sequential injection
(reprogrammable eprom). Installed in the ECU compartment.
Main relay 1, 16 way grey connector.
Main relay 2, 16 way green connector
Power relay 3, 16 way black connector
Installed in the ECU compartment.
2 way blue connector, switch opens at 20 Bars, for ECU
information (steering wheel on full lock). Ring seal marked
violet, fixed on the power steering 4 way hydraulic union,
beneath the vehicle.
2 way grey connector, fixed on the air filter inlet duct.
3 way grey connector, fixed on the inlet camshaft bearing
cap cover.
3 way green connector, fixed on the central part of the engine
block V.
ESSENTIAL : respect the tightening torque 2 ± 0,2 m.daN.
2 way green connector, fixed on the coolant outlet housing.
Tighten to 2 ± 0.2 m.daN
2 way black connector, fixed on the gearbox clutch casing. BOSCH
SIEMENS
BITRON
JAEGER
ELECTRIFIL
BOSCH
DAV
ELECTRIFIL
ELECTRIFILME 7.4.6
0261206418
S210500000
402 084 01
14 43 25
026123125
402 243 03
14 43 32
14 43 28