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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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![Citroen C4 2005 2.G Workshop Manual 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 Citroen C4 2005 2.G Workshop Manual 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](/manual-img/9/4138/w960_4138-367.png)
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
Setting at reference height
Front axle Rear axle
Measure the dimension «R1». Calculate the dimension H1 = R1 - L1. Measure the dimension «R2». Calculate the dimension H2 = R2 + L2.
All types (except CRD version) CRD versionAll types (except Estates
and CRD version) Estates CRD version
90,5 mm 75,5 mm 83 mm 88 mm 103 mm
Compress the suspension to obtain the values (H1)and (H2).
NOTE:The difference in height between the two sides should be less than 10 mm.
AXLE GEOMETRY
Reference heights - RPO 8667 #
Tools [1] Gauge for measuring the radius of wheels with 4 bolts: 4300-T0
XSARA
B3CP04AD
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AXLES
SUSPENSION
STEERING
XSARA TIGHTENING TORQUES: FRONT AXLE
Tightening torques (m.daN).
(1)Damper nut: 4,5 ± 0,4
(2)Cup screw: 2,5 ± 0,3
(3)Suspension leg
(4)Anti-roll bar link rod upper ball-joint: 3,7 ± 0,3
(5)Suspension leg pivot
(hollow pivot): 4,5 ± 0,5
(5)Suspension leg pivot (pivot «H»): 5,5 ± 0,5
(6)Anti-roll bars: 3,7 ± 0,3
(7)Anti-roll bar link rod lower ball-joint
(8)Pivot lower ball-joint: 4 ± 0,4
(9) Driveshaft nut: 32,5 ± 2,5
(10)Wheel bolt: 9 ± 1
(11) Lower arm front mounting: 7,6 ± 0,7
(12)Lower arm rear mounting and anti-roll bar bearing: 6,8 ± 0,6
(13)Screw under rear mounting: 3,1 ± 0,3
(14) Ball-joint fixing on lower arm: 5 ± 0,5
Subframe to bodyshell fixing screw: 8,5 ± 0,8
B3CP040PB3CP041D
Vehicles from RPO 8667# are all
equipped as standard with ventilated
discs.
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AXLES
SUSPENSION
STEERING
H1 = R1 – L1 H1’ = R1 – L1’
H1 = From the front suspension arm linkage bolt axis to the ground.
R1 =Radius of the front wheel when laden.
L1 =From the centre of the wheel to the front suspension arm linkage
bolt axis.
H1' =From the front jacking point to the ground.
L1' =From the front jacking point to the radius of the front wheel when
laden.H2 = R2 - L2
H2 = From the rear axle silentblock face to the ground.
R2 =Radius of the rear wheel when laden.
L2 =From the centre of the wheel to the rear axle silentblock face.
AXLE GEOMETRY
Measurements at reference height
NOTE: To make the setting of reference height easier, it is acceptable to take the measurement from the flange of the jacking point.
WARNING: The values shown should only be used as guides. In case of doubt, check the settings at reference height
Rear heightFront height
B3CP05BCB3CP058DB3DP079C
XSARA PICASSO
Conditions for checking and adjusting: Tyres inflated to correct pressures. Vehicle at reference height. Steering rack locked at mid point(see corresponding operation).
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AXLES
SUSPENSION
STEERING
TIGHTENING TORQUES: FRONT AXLE
Tightening torques (m.daN).(1) Damper nut: 4.5 ± 0.4
(2)Cup screw: 2.5 ± 0.2
(3)Suspension leg
(4)Anti-roll bar link rod ball-joint: 3.7 ± 0.3
(5)Suspension leg swivel: 4.5 ± 0.4
(6)Anti-roll bar
(7)Anti-roll bar link rod ball-joint: 3.7 ± 0.3
(8)Lower swivel ball-joint: 4 ± 0.4
(9)Hub nut
(greased): 32.5 ± 2
(10)Wheel bolt
(face and threads not greased): 9 ± 1
(11) Lower arm front pivot: 7.6 ± 0.7
(12) Lower arm rear pivot and
anti-roll bar bearing: 6.8 ± 0.6
(13) Screw under rear pivot : 3.5 ± 0.3
Lower arm in forged steel : 3.7 ± 0,3
Lower arm in plate steel: 3.1 ± 0,3
Screw fixing subframe on bodyshell: 8.5 ± 0,8
Screw fixing ball-joint on lower
arm
(plate steel): 4.5 ± 0,4
Anti-roll bar
Engines
ALL TYPESDiameter
21Colour ref.
WHITE Suspension leg angle:
Ta b«a»towards the front.
B3CP056P
B3CP057D
B3CP043D
XSARA PICASSO
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AXLES
SUSPENSION
STEERING
TIGHTENING TORQUES: REAR AXLE
Tightening torques (m.daN).
(14)Front silentblock on subframe: 9.4 ± 0.9
(15)Anti-roll bar bolt: 5.5 ± 0.5
(16)Rear torsion bar
(17) Anti-roll bar
(18) Tubular axle
(19)Front silentblock on bodyshell: 4 ± 0.4
(20)Rear upper arm.
(21)Wheel bolt
(face and threads not lubricated): 9 ± 1
(22)Damper
(23)Rear silentblock on subframe: 5.4 ± 0.5
(24)Damper pin nut: 11 ± 1
(25)Stub axle nuts
(lubricated): 25 ± 2
(26)Rear silentblock on bodyshell: 6.5 ± 0.6
Anti-roll bar
Torsion bar
Engines
ALL TYPES 19,6 PINKØ (mm)
Colour ref.Ø (mm)
21Colour ref.
ORANGE
B3DP078D
NOTE: The RH torsion bar can be identified by 1 paint line.
The LH torsion bar can be identified by 2 paint lines.
XSARA PICASSO
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