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
Page 46 of 259
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43 Oil pump
- Pre-tightening0.7
- Tightening0.9 ± 0.1 1.3 ± 0.1 0.9 ± 0.1
Water / oil heat exhanger5.8 ± 0.5
Lubrication pipe
- Engine end3 ± 0.3
- Turbocompressor end2 ± 0.2
Injection circuit
Injector(Flange nut)
- Tightening3 ± 0.3 4 ± 0.3
- Angular tightening45°±5°
Union on injection rail2 ± 0.2
Injection pump0.5 ± 0.1 2.25 ±0.3
Union on injector 2 ± 0.2
Common rail fixing screw 0.9 ± 0.1 0.8 ± 0.1
Injection pump pulley5 ± 0.5
Union on injection pump 2.6 ± 0.3 2 ± .02
Cooling circuit
Water pump 1.4 ± 0.1 1.6 ± 0.3
Water inlet housing 0.9 ± 0.1 2 ± .02
Engines : 6FZ-RFN-RLZ-RHY-RHZ-4HX
Lubrication circuit Diesel Petrol
6FZ RFN RJZ RHY RHZ 4HX
SPECIAL FEATURES : TIGHTENING TORQUES ( m.daN)
Page 78 of 259
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75
CHECKING AND SETTING THE VALVE TIMING
Engine : XFX
Checking the valve timing setting (continued).
- Peg the crankshaft, using tool[1].
- Check that the tool [2]engages without effort in the cylinder heads at the camshaft pulleys.
- Remove the tools [1] and [2].
Refit :
- The lower timing cover(13).
- The upper timing covers (9)and(10).
- The crankshaft pulley (12).
- The roller / dynamic tensioner assembly (11).
- The power steering pulley.
- Complete the refitting of components.
- Initialise the ignition injection ECU.
B1EP15UDB1EP08TC
Page 88 of 259
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85
TOOLS
[1] Belt tension measuring instrument: 4122-T
[2] Engine flywheel peg: (-).0188.X.
[3]Tension lever: (-).0188.Y.
[4]Belt compression spring: (-).0188.K.
[5]Camshaft pinion peg: (-).0188.M.
[6] Engine flywheel lock: (-).0188.F.
[7]Set of blocking plugs: (-).0188.T.
IMPERATIVE : Respect the safety and cleanliness recommendations
specific to high pressure diesel injection (HDi) engines.
Checking the setting of the valve timing.
- Turn the crankshaft(normal direction of rotation)and line up the black
markings on the chain (b) and (c)with the teeth marked (a) and (d)of the
camshaft drive pinions (40 turns max. of the camshaft).
CHECKING AND SETTING THE VALVE TIMING
Engine : 4HX
B1EP159D
Page 114 of 259
Downloaded from www.Manualslib.com manuals search engine 111
INJECTION
1.8 i 16V6FZL4
SAGEM S2000 7000
IF/L5
C5
2.0 i 16V RFN IF/L5MAGNETTI MARELLI
900< 0.5 > 9
48P
2.0 i 16V RLZ L4SIEMENS
900
SIRIUS 81
3.0 i V6 XFZ IF/L5BOSCH
650 600
ME 7.4.6.
IDLING - ANTI-POLLUTION
Vehicles Engine typeEmission
standardMake - Injection type% Content
CO CO2
Idling speed
(± 50 rpm)
Manual
gearbox Auto. gearbox: N
gear engaged
Page 115 of 259
Downloaded from www.Manualslib.com manuals search engine 112
INJECTIONEmission standard Engine type
Make
Injection type
PETROL INJECTION
Air temperature sensor resistive
value (ohms)
Petrol
Fuel pressure (bars)
Overspeed cut-off (rpm)
Injection cut-in during
deceleration (rpm)
Injector resistive value (ohms)
Engine coolant temperature
sensor resistive value (ohms)
Idling actuator or stepper motor
resistive value (ohms)
1.8i 16V 2.0i 16V 3.0i V6
6FZ RFN RLZ XFX
L4 - IF/L5 IF/L5 L4 IF/L5
SAGEM MAGNETTI MARELLI SIEMENS BOSCH
S2000 MM. 48P SIRIUS 81 ME 7.4.6.
3.5 3.5 5 3.5
6520
1100
12.2 14.5 1.88 16
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
Stepper motor : 53
3 800 at 10°C 2500 at 20° C 800 at 50°C 230 at 90° C
Page 116 of 259
Downloaded from www.Manualslib.com manuals search engine 113
INJECTION
STANDARD
K
K’
W vp 15.04
15.04
15.05 Petrol
Diesel
Petrol Private vehicles :
> 2 litres
• new cyl. < 2 litres
• existing cyl. < 2 litres
Utility vehicles :
All Types
Private vehicles :
> 2 litres
• new models
• existing models
06/89
06/92
12/92
10/89
en cours
01/10/88
01/10/89
Brussels directive 83/351 except special
derogations for certain
private vehicles
cyl. > 2 litres
Utility vehicle limits
= private vehicle limits
increased by 25 %
For private vehicles
and utility vehicles
in major export
Brussels directive 88/76
«Luxembourg Accords»
Replaced by 89/458
+ 91/441 With oxygen sensor,
without catalytic converter
EMISSION STANDARDS
PSA
A-S RPEngines ApplicableVehicles
ECE
R 15.04
ECE
R 15.05 E.E.C.
APPLICATION NOTES
CHARACTERISTICS