Page 2 of 259
Downloaded from www.Manualslib.com manuals search engine PRESENTATION
THIS HANDBOOK summarises the specifications, adjustments, checks and special features of theCITROEN C5.
The handbook is divided into the following sections representing the main functions :
GENERAL - ENGINE - INJECTION - IGNITION - CLUTCH - GEARBOX - DRIVESHAFTS - AXLES - SUSPENSION - STEERING - BRAKES - HYDRAULICS -
ELECTRICAL - AIR CONDITIONING.
Page 3 of 259

Downloaded from www.Manualslib.com manuals search engine INJECTION
Idling - antipollution 111
Petrol injection 112
Emission standards 113 - 119
Prohibited operations : HDi 120 - 121
Safety requirements : HDi 122 - 123
Checking the fuel supply circuit 124 - 125
Checking the air supply circuit 126 - 130
Exhaust gas recycling 131 - 134
Checking turbo pressure 135 - 138
Features of injection systems 139 - 168
IGNITION
Sparking plugs 169
CLUTCH-GEARBOX
Speedometers 170
Clutch specifications 171 - 172
Gearbox and tyre specifications 173 - 174
BE4/5 gearbox controls 175 - 183
ML/5 gearbox controls 184 - 192
AL4-4HP20 gearbox controls 193 - 203
Driveshafts 204
AXLES-SUSPENSION
Wheels and tyres 205 - 211
Axle geometry 212 - 214
Front and rear axle 215 - 216Suspension 217 - 220
Steering specifications 221 - 222
BRAKES
Brake specifications 223 - 228
Handbrake adjustment 229
Bleeding and filling braking system 230 - 233
HYDRAULICS
Specifications 234 - 237
Suspension spheres 238 - 240
ELECTRICAL
Starter motors 241
Alternators 242
Charging circuit 243
AIR CONDITIONING
Quantities in R 134a aircon system 244
Special features 245
Pollen filter 246
Dryer cartridge 247 - 249
Checking oil level 250 - 251
Checking pressures 252
Air conditioning : 6FN-RFN-RLZ 253
Air conditioning circuit : XFX 254
Air conditioning circuit : RHY-RHZ 255
Air conditioning circuit : 4HX 256
INDEX
GENERAL
Identification of vehicles 1 - 4
General : Dimensions 5 - 6
Weight specifications 7 - 8
Towing specifications 9 - 10
Lifting / supporting the vehicle 11 - 14
Capacities 15 - 18
Lubricants 19 - 32
ENGINES
Engine specifications 34 - 58
Cylinder head marking / tightening
6FZ-RFN-RLZ 38
XFX 51 - 52
RHY-RLZ 55 - 56
4HX 57 - 58
Auxiliaries drive belt 59 - 68
Checking and setting valve timing 69 - 90
Power unit suspension 91 - 95
Exhaust system 96 - 100
Cooling system 101 - 107
Checking oil pressures 108
Oil filter 109
Filling and bleeding engine coolant 110
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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.
Page 148 of 259

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 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
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Downloaded from www.Manualslib.com manuals search engine 153
INJECTION
Component (diagr.) Supplier Reference Observations
88 way connector. Flash eprom type sequential
Diesel injection ECU1BOSCHEDC 15C2 injection (reprogrammable eprom). Installed in the
ECU compartment.
Engine speed sensor2ELECTRIFIL
Camshaft position sensor3ELECTRIFIL Air gap value : 1,2 mm.
Coolant temperature sensor7ELECTRIFIL 962859028A Fixed on the coolant housing.
Accelerator pedal sensor8PHILIPS
Vehicle speed sensor9EATON On the gearbox.
Brake pedal switch10aOpen at rest.
10bClosed at rest.
Clutch pedal switch11
Atmospheric pressure sensor12BOSCHIntegrated in the injection ECU.
Battery
13FULMEN058426 – 12 Volt
400 ampsUnder the bonnet.
Injection double relay14BITRON 240 10915 way black connector. Installed in the ECU
compartment.
FIRST3 way black connector. Installed in the front RH
Inertia switch30INERTIA Type 505wheelarch, fixed on the suspension mounting.
SWITCHManual rearming in the event of the cut-out system
being activated.
FEATURES OF BOSCH HDi DIRECT INJECTION SYSTEM
Electrical circuit
Page 157 of 259
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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
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