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394

AIR

CONDITIONING

Manual air conditioning

Checking.

Position the tool [1] (depending on manufacturer’s instructions).

Preliminary operations.

Close all the front air vents.

Start the engine. Open the front LH air vent (1).

Position the air distribution control (6) to frontal flow at «b».

Activate the air recirculation control by pressing on the switch (2) (lamp comes on).

Activate the air conditioning control by pressing on the switch (3) (lamp comes on).

Positions of the air conditioning controls:

- Temperature control (4) on maximum cold.

- Blower control (5) in maximum speed position at «a».

Let the air conditioning operate for 5 minutes.

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

C5FP0NXP

UK-C4-page385-409-2004 15/11/04 9:13 Page 394

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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