front axle Citroen C4 2005 2.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine CLUTCH - GEARBOX - TRANSMISSION (continued)
Gearbox specifications312 - 314
Clutch specifications315 - 316
Checking and adjusting the hydraulic
clutch control317 - 318
Tightening torques: manual gearbox
319 - 330
Manual gearbox controls
331 - 343
Recommendations - precautions:
automatic gearbox344 - 346
Tightening torques: manual gearbox
347 - 349
Automatic gearbox controls
350 - 359
Driveshafts360
AXLES - SUSPENSION - STEERING
Axle geometry: C4361 - 364
Tightening torques: front axle365 - 366
Tightening torques: rear axle367
Tightening torques: power steering368 - 369
Setting the steering rack mid-point370
Checking the power steering pressure371 - 374
Axle geometry: Xsara375 - 379Adjusting the handbrake 426
Filling, bleeding the brakes427
AIR CONDITIONING
R134.a: quantities428
Checking the compressor lubricant429 - 430
Pollen filter: all types431 - 433
Filtering and drying cartridge434 - 436
Checking the efficiency of the circuit437 - 446
C4447 - 451
Xsara452
Xsara picasso453 - 456
CONTENTS
Tightening torques: front axle380
Tightening torques: rear axle382
Tightening torques: steering 383 - 384
Tightening torques: power steering385 - 387
Axle geometry: Xsara Picasso388 - 392
Tightening torques: front axle393
Tightening torques: rear axle394
Tightening torques: power steering395 - 397
BRAKES
Brake specifications: C4398 - 399
Tightening torques: Brakes401 - 403
Adjusting the handbrake 405
Filling, bleeding the brakes406 - 410
Brake specifications: Xsara411
Tightening torques 414
Brake specifications415 - 418
Adjusting the handbrake 419
Filling, bleeding the brakes420
Brake specifications: Xsara Picasso421 - 422
Brake specifications423 - 424
Aircon circuit
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AXLES
SUSPENSION
STEERING
AXLE GEOMETRY
Conditions for checking and adjusting
Vehicle heights at reference height
Rear height Front height
L2 L1
Tools : [1] Gauge for measuring the the wheel radius, 4 bolts: 4300-T.
Tyres inflated to correct pressures. Vehicle at reference height.
Steering rack locked at mid point
(see corresponding operation).
H1 = R1 - L1
H1 = Measurement between the measuring zone underneath the front
subframe and the ground.
R1 = Front wheel radius under load.
L1 =Distance between the wheel axis and the measuring zone underneath
the front subframe.H2 = R2 + L2
H2 = Measurement between the measuring zone underneath the rear sill
and the ground.
R2 =Rear wheel radius under load.
L2 =Distance between the wheel axis and the measuring zone underneath
the rear sill.
E1AP0F3D
C4
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Downloaded from www.Manualslib.com manuals search engine AXLE GEOMETRY
B3CP097D
Measuring front height Measuring rear height
[1]Gauge for measuring the the wheel radius, 4 bolts: 4300-T
Z1= Measuring zone underneath the front subframe.Z2= Measuring zone underneath the rear sill.
Measure the radius of the front wheel R1 - Calculate dimension H1 = R1–L1Measure the radius of the rear wheel R2 - Calculate dimension H2 = R2+ 2
Value at reference All types
CRD vehicles (*)Value at reference All types (except entreprise CRD
height (except CRD) (*) height entreprise et CRD) (*) vehicles vehicle (*)
(+ 10 - 8 mm) L1 = 144 mm L1 = 124 mm (+ 12 - 10 mm) L2 = 68 mm L2 = 48 mm L2 = 88 mm
(*) = CRD: Difficult road conditions: definition for a type of vehicle with axles and suspension designed for driving on rough roads.
Compress the suspension to obtain the calculated values.
The height difference between the two axle dimensions should be less than 10 mm.
362
AXLES
SUSPENSION
STEERING
C4
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AXLES
SUSPENSION
STEERING
C4
363
A < B = Positive figure: + = TOE-IN
A > B = Negative figure: - = TOE-OUTNOTE
AXLE GEOMETRY
Front axle
Dissymmetry of lower castor 0° 30'.
Dissymmetry of lower camber 0° 30'.
Distribute symmetrically, LH / RH wheel, the total tracking value.
EnginesET3J4 - TU5JP EW10
DW10BTED4EW10DV6
DV6 DV6 DW10BTED4
Tyres195/65 R 15 205/55 R 16 205/50 R 17
Camber
(± 0° 30’)0°
Castor
(± 0° 30’)No adjustable 5° 5° 09’ 5° 12’
Pivot angle
(± 0° 30’)11° 41’
Tracking Adjustable- 2,5 ± 1 mm
- 0° 23’ ± 0° 09’ - 0° 21’ ± 0° 09’ - 0° 20’ ± 0° 08’
NOTE:Front of the vehicle (following arrow).B3CP02UC
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Downloaded from www.Manualslib.com manuals search engine AXLES
SUSPENSION
STEERING
C4
A < B = Positive figure: + = TOE-IN
A > B = Negative figure: - = TOE-OUTNOTE
AXLE GEOMETRY
Rear axle
Dissymmetry of lower camber 0° 30'.
EnginesET3J4 - TU5JP EW10DV6 EW10DV6
DV6 DW10BTED4 DW10BTED4
Tyres195/65 R 15 205/55 R 16 205/50 R 17
Camber
(± 0° 30’)No adjustable 1° 45’
Push angle
(± 0° 06’)0°
Tracking Adjustable6,5 ± 1 mm
0° 59’ ± 0° 09’ 0° 55’ ± 0° 09’ 0° 52’ ± 0° 08’
NOTE: Front of the vehicle (following arrow).B3CP02UC
364
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AXLES
SUSPENSION
STEERING
C4TIGHTENING TORQUES: FRONT AXLE
Tightening torques (m.daN).
(1)Nut fixing suspension leg on body: 6,9 ± 0,6
(2) Nut fixing upper damper cup: 6,9 ± 0,6
(3)Upper fixing of anti-roll bar rod: 3,6 ± 0,3
(4)Lower fixing of anti-roll bar rod: 3,6 ± 0,3
(5)Nut fixing pivot lower ball-joint: 4,2 ± 0,4
(6)Fixing of pivot lower ball-joint on pivot: 23 ± 2,3
(7)Hub nut: 32,5 ± 2,6
(8)Steering ball-joint on pivot: 3,5 ± 0,3
(9)Fixing of suspension leg on pivot: 9 ± 0,9
Anti-roll bars
Engines Diameter (mm) Colour
ET3J4 TU5JP - EW10A/J4
DV621.5 Pink
EW10J4S DW10BTED4 22 White
B3BP18ZP
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AXLES
SUSPENSION
STEERING
C4TIGHTENING TORQUES: FRONT AXLE
Tightening torques (m.daN).
(10)Fixing of subframe extension on body: 5,1 ± 1,2
(11)Fixing of tie-rod on body: 1,8 ± 0,4
(12)Tie-rod screw on front subframe: 9,8 ± 0,9
(13) Fixing of anti-roll bar bearing on subframe: 10,4 ± 1
(14)Fixing of lower suspension arm on subframe: 11,1 ± 1
(15)Fixing of subframe extension on body: 8,5 ± 0,8
(16)Fixing of steering mechanism on subframe: 8 ± 0,8
B3CP08TD
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AXLES
SUSPENSION
STEERING
C4CHECKING THE POWER STEERING ASSISTANCE PRESSURE
Tools.
[1]Pressure gauge: (-).0710.AZ
[2]Checking tube: pressure gauge to tap: (-).0710.B1
[3]Checking tube: high pressure pipe to tap: (-).0710.B2
[4]Checking tube: high pressure pump to tap: (-).0710.B3
[5]3-way tap: (-).0710.C
[6]Union: (-).0710.J
[7]Union: (-).0710.K
[8] Plugs for checking valve sealing: (-).0710.H
Precautions to be taken.
Work with care to avoid entry of polluting particles into the circuit.
NOTE:The correct operation of the system requires perfect cleanliness of the fluid and of the
hydraulic components.
Check:
- The level of the power steering fluid.
- The condition of the piping and unions.
Using the tools.
Prepare the checking assembly [1], [2], [3], [4], [5], [6]and [7].
Attach the tool [1].
Remove the front RH wheel, the splash-shield and the screen wash reservoir.
B3EP16CC
B3EP16DC
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AXLES
SUSPENSION
STEERING
CHECKING THE POWER STEERING ASSISTANCE PRESSURE
Checking the valve sealing.
Remove the under-engine shield.
Move aside the heat shield from the steering mechanism.
Slacken the unions (2)on the power steering ram.
Uncouple the two supply pipes (3)from the distributor valve and move them aside.
Fit on the distributor valve the two plugs [8], tighten to 0,8 m.daN.
Move the steering slowly from lock to lock, to drain the ram.
Top up the level of the power steering fluid.
Open the tap [5].
Stop the engine.
Maintain the engine speed at accelerated idle.
Hold the wheels on full lock, first on one side then on the other.
The pressure should adjust to 105 ± 5 bars.
The pressure is correct: replace the steering mechanism.
The pressure is lower than the values above: replace the distributor valve.
Couple the two supply pipes (3)on the distributor valve; tighten to 0,8 m.daN.
Retighten the unions (2)on the power steering ram; tighten to 0,8 m.daN.
Remove the union [7]on the high pressure pipe (1)and the union [6]on the power steering
electropump.
Refit:
- the high pressure pipe (1); tighten to 2 ± 0,2 m.daN.
- the screen wash reservoir, the front RH splash-shield and the front RH wheel.
B3EP16FC
B3EP16GC
C4
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AXLES
SUSPENSION
STEERING
XSARA AXLE GEOMETRY
Front and rear measuring points - RPO 8667 #
XSARA ALL TYPES
Front height
Rear height
H1 = Dimension between the centre of the front suspension arm
mounting and the ground.
R1 =Front wheel radius under load.
L1 =Distance between the centre of the wheel and the centre of the
front suspension arm mounting.
B3CP06ZD
H2 = Dimension between the contact face of the rear mounting and
the ground.
R2 =Rear wheel radius under load.
L2 =Distance between the centre of the wheel and the contact face of
the rear mounting on the bodyshell.
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