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235

ENGINES

VALVE CLEARANCE SETTINGS

The valve clearances must be checked with the engine cold

● Inlet

KFU

NFU

RFN RFJ RFK

9HX 9HY 9HZ RHR

Exhaust

Hydraulic adjustment

1 ± 0,05 mm

Rocking

Adjust

1 ● 1

3 ● 3

4 ● 4

2 ● 2

4 ● 4

2 ● 2

1 ● 1

3 ● 3

Inlet

●

Exhaust

Rocking

Valves

fully

open

Adjust

3 ● 4

4 ● 2

2 ● 1

1 ● 3

Fully open (Exhaust)

POSSIBLE PROCEDURES

For engines with 4 cylinders in a line (1-3-4-2)

Engines without hydraulic

adjustment: the clearance (J)

should be checked opposite the

cam.

B1DP13QC

Hydraulic adjustment

UK-C4-page131-237-2004 15/11/04 9:19 Page 235

General4
Identification of the Vehicle4
Level6
Level7
Level8
Manufacturer’s Plate10
Structure11
General Specification: Dimensions12
Exterior Dimensions13
Interior Dimensions and Volumes13
Level13
Weights14
Operations to be Carried out after a Repair16
Vehicle Towing: Precautions to be Taken17
Lifting and Supporting the Vehicle19
Capacities22
Draining Method22
Total Recommended Oils25
Total Quartz25
Total Activa25
Total Activa26
Total Quartz26
- Table of Contents31
- Oil Usage Table32
Total Activa Diesel34
- Gearbox Oils46
- Power Steering Oils47
- Engine Coolant Fluid47
- Brake Fluid48
- Screen Wash Fluid49
- Grease49
- Engine Oil Consumption50
- Engine Specifications51
- Special Features: Tightening Torques53
- Suspensions for Engine/Gearbox Assembly53
- Engine: KFU54
- Cylinder Head55
- Cylinder Block56
- Lubrication58
- Timing59
- Accessories60
- Identification of Cylinder Head Gasket61
- Cylinder Head Tightening62
- Cylinder Head Bolts62
- Engine: NFU63
- Gearbox on RH/LH Side63
- Gearbox below the Engine63
- Engine: RFJ72
- RH Side72
- Torque Reaction Rod72
- Cylinder Head83
- Engine: RFN84
- Gearbox at Torque Reaction Rod84
- Engine: RFK96
- Engines: 9HX - 9HY - 9HZ108
- RH/LH Engine Support108
- Impact Absorber108
- Engine: 9HX109
- Injection Circuit117
- Engines: 9HY - 9HZ121
- Engine: RHR136
- Lower Engine Support136
- Auxiliary Equipment Drive Belt149
- Engines: KFU - NFU150
- Engines: RFJ152
- Checking and Setting the Valve Timing158
- Belt Tension Correspondance Table/Seem Units159
- Recommendations: Timing Belt160
- Checking the Valve Timing161
- Checking and Setting the Valve Timing184
- Adjusting the Timing Belt Tension201
- Adjusting the Camshaft Position Sensor211
- Checking the Engine Compression Rates212
- Tightening Torques - Exhaust Line217
- Exhaust Specifications220
- Cooling System Specifications226
- Engine: NFU Automatic Gearbox230
- Oil Filters236
- Oil Pressure Checks237
- Valve Clearance Settings238
- Filling and Bleeding the Cooling Circuit239
- Injection241
- Idling - Depollution241
- Petrol Injection242
- Emission Standards243
- Prohibited Operations: Bosch Hdi Direct Injection System247
- Safety Requirements: Hdi Direct Injection System252
- Cleanliness Requirements253
- Particle Filter Safety and Cleanliness Requirements254
- Special Features: Forced Regeneration of the Particle Filter256
- Additive System257
- Filling the Additive Reservoir257
- Checking the Additive Level259
- Checking the Additive Pump Pressure/Sealing of the Additive Injector260
- Air Supply Circuit Specification262
- Checking the Air Supply Circuit264
- Checks: Turbo Pressure266
- Low Pressure Fuel Supply Circuit267
- Turbo Pressure270
- Specifications of the Diesel System Injection Pump272
- Ignition273
- Sparking Plugs273
- Clutch Gearbox Driveshafts274
- Speedometer274
- Clutch Specifications275
- Clutch Specifications277
- Features278
- Gearbox and Tyre Specifications279
- MA/5 Gearbox282
- Tightening Torques: MA/5 Gearbox285
- MA/5 Gearbox Controls288
- Unlocking a Sleeve Stop290
- BE4/5 Gearbox291
- Tightening Torques: BE4/5 Gearbox294
- BE4/5 Gearbox Controls297
- ML6 Gearbox300
- Tightening Torques: ML6 Gearbox303
- ML6 Gearbox Controls306
- Adjustment of the Gear Selection Control Cable307
- AL4 Automatic Gearbox309
- Recommendations - Precautions310
- Draining - Filling311
- Checking the Oil Level312
- Procedure before a Repair313
- ECU: Initialisation314
- Tiqhtening Torques: Automatique AL4315
- Shift Lock318
- AL4 Automatic Gearbox Controls319
- Gearbox End321
- Driveshaft Specifications322
- Axles Suspension Steering325
- Wheel and Tyres325
- Identification of Inflation Pressures335
- Identification of the Wheel Bolts336
- Deflation Detection System337
- Conditions for Checking and Adjusting338
- Vehicle Heights at Reference Height338
- Axle Geometry338
- Axle Geometry339
- Front Axle340
- Rear Axle341
- General Specifications:front Axle342
- Tightening Torques: Front Axle343
- General Specifications: Rear Axle345
- Tightening Torques: Rear Axle346
- General Specifications: Suspension347
- Front Suspension Spring348
- Rear Suspension Spring348
- Tightening Torques: Suspension349
- Suspension Leg349
- Subframe350
- General Specifications: Power-Assisted Steering352
- Fixed Central Controls Steering Wheel353
- Steering Column354
- Steering Mechanism355
- Steering Assistance Circuit356
- Steering Mechanism with Integral Ram357
- Steering Assistance Electrovalve358
- Setting the Steering Rack MID-Point359
- Special Features: Steering359
- Checking the Power Steering Assistance Pressure360
- Preliminary Operations361
- Checking the Valve Sealing362
- Brakes364
- Brake Specifications364
- Braking System366
- ABS/ESP Hydraulic Block367
- Tightening Torques: Braking System368
- Front Brakes368
- Handbrake369
- Rear Brakes370
- Values for Checking and Adjusting the Braking System371
- Handbrake Adjustment373
- Bleeding and Filling the Braking System374
- Filling the Braking Circuit376
- Bleeding the Primary Braking Circuit376
- Bleeding the Braking Circuit with the Bleed Apparatus377
- Bleeding the Braking Circuit Without the Bleed Apparatus378
- Bleeding the Secondary Braking Circuit378
- Electricals379
- Starter Motors379
- Alternators381
- Without Air Conditioning381
- Pre-Heating and Starting System386
- Checking the Voltage Regulator387
- Checking the Alternator Output387
- Charging Circuit - Alternator with Mono-Function Regulator387
- Air Conditioning R 134A: Capacities388
- Special Features: Air Conditioning System389
- Compressor389
- Condenser389
- Tightening390
- Pollen Filter391
- Compressor Lubricant392
- Checking the Compressor Oil Level392
- Checking the Efficiency of the Air Conditioning System394
- Air Conditioning Evaporator Icing Safety395
- Air Conditioning Fluid Pressure Safety395
- Air Conditioning Compressor Safety395
- Management of the Air Conditioning Compressor395
- Safety as a Function of the Outside Temperature396
- Safety as a Function of Electric Diagnosis396
- Manual Air Conditioning397
- Automatic Bi-Zone Air Conditioning398
- Operating the Air Conditioning Function399
- Operating the Air Flow Function399
- Operating the LH/RH Cabin Temperature Function399
- Interpretation of the Measurements401
- Values for Over-Heating (SC)401
- Interpretation of the Diagnosis403
- Aircon Circuit Diagnosis Table404
- Air Conditioning System R 134.A408

Brand	CITROEN
Model	C4 2004
Category	Automobile
Language	English

CITROEN C4 2004 User Manual

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CITROEN C4 2004 Specifications

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