Front suspension Citroen XSARA PICASSO 2004 1.G Workshop Manual

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SUSPENSION
STEERING
355
C2 AXLE GEOMETRY
Tyres inflated to correct pressures. Vehicle at reference height.
Steering rack locked at mid point (see corresponding operation).
Conditions for checking and adjusting
Vehicle heights at reference height
E1APOBZD
Front height Rear height
L1L2
H1 = R1 – L1 H2 = R2 + L2
H1
= Measurement between the measuring zone underneath the front H2 = Measurement between the measuring zone underneath the rear
subframe and the ground. sill and the ground.
R1= Front wheel radius under load.R2= Rear wheel radius under load.L1= Distance between the wheel axis and the measuring zoneL2= Distance between the wheel axis and the measuring zone
underneath the front subframe. underneath the rear sill.

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SUSPENSION
STEERING
356
C2 AXLE GEOMETRY
B3CP07SD
Measuring front height Measuring rear height
[1]
Gauge for measuring the wheel radius, 4 bolts, tool 8006T
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 + L2
Value at referenceExcept CRD (*)Value at referenceExcept CRD (*)heightHFX KFV 8HX NFUheightHFX KFV 8HX NFU
(+ 6 8 mm)L1 = 142,5 mmL1 = 152,5 mm(+ 10 6 mm)L2 = 52 mm L2 = 42 mm
Compress the suspension to obtain the calculated values.
The height difference between the two axle dimensions should be less than 10 mm.(*) = CRD: Difficult road conditions.

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AXLES
SUSPENSION
STEERING
A < B = Positive figure: + = TOEIN
A > B = Negative figure: = TOEOUT
WARNING
AXLE GEOMETRY
Rear axle Front axle
Dissymmetry of lower camb8er 0° 18. Dissymmetry of lower castor at
0° 30’.
DISSYMMETRY OF LOWER CAMBER 0° 18’.
Distribute symmetrically, LH / RH wheel, the total tracking value.
All types (except CRD)
NFU
Vehicle TrackingCastor Camber Pivot angle
(± 0°18’) (± 0°30’) ± 0°30’
ADJUSTABLE Non adjustable
2 ± 1
0°18’±0°09’ 3°58’ 0°31’ 11°26’
NFU
Vehicle TrackingCastor Camber Pivot angle
±0°30’
ADJUSTABLENon adjustable
2 ± 1
0°18’± 0°09’ 4° 0°32’ 11°35’Tracking Camber
Non adjustable
5,5 ± 1
0°53’ ± 0°09’ 1°30’
TrackingCamber
Non adjustable
5,8 ±1
0°49’ ± 0°09’ 1°31’
All
Typesmm
0°
All
Typesmm
0°
B3CP02UC
C2
± 0°18’ ± 0°30’
HFX KFV 8HX HFX KFV 8HX

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AXLES
SUSPENSION
STEERING
FRONT AXLE
Tightening torques (m.daN).
(1)Nut fixing suspension leg on body: 6,5 ± 0,6
(2)Damper:
(3)Antiroll bar link rod upper balljoint:3,2 ± 0,3
(4)Suspension leg pivot: 5,4 ± 0,5
(5)Antiroll bar link rod lower balljoint: 3,2 ± 0,3
(6) Antiroll bar bearing fixing on subframe:8 ± 0,8
(7)Hub nut: 24,5 ± 0,5
(8)Wheel bolt:9 ±1
(9)Subframe to bodyshell fixing screw:10 ± 1
(10) Antiroll bar:
(11)Pivot lower balljoint fixing on lower arm: 5,5 ± 0,5
(12)Pivot lower balljoint fixing: 4 ± 0,4
(13)Lower arm front and rear mounting fixing: 14 ± 0,4
(14)Stabiliser bar screw:6,6 ±0,7
(15)Steering balljoint fixing:3,5 ± 0,3
Private vehicles Antiroll bar
EuropeDiameter (mm)Colour
HFX KFV 18Violet
NFU 20 Green
8HX19Blue
Entreprise vehiclesDiameter (mm)Colour
HFX 8HX18 Violet
CRD vehicles Diameter (mm) Colour
KFV 8HX18 Violet
NFU 20 Green
B3CP07RP
C2

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AXLES
SUSPENSION
STEERING
SUSPENSION
FRONT AXLE
(1)Nut fixing suspension leg on body: 6,5 ± 0,6
(2)
Damper
(16)Cup
(17)Damper nut: 6,5 ± 0,6
(18)
Damper cup
(19)Ball bearing
(20)Spring thrust cup
(21)Travel stop cup
(22)Suspension spring
(23) Damper rod rpotector
(24) Travel stop
B3BP180D
C2

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AXLES
SUSPENSION
STEERING
AXLE GEOMETRY
Conditions for checking and adjusting
Vehicle heights at reference height
Rear height
Fr ont height
L2
L1
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.
E1AP09MD
C3
C3

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AXLES
SUSPENSION
STEERING
C3 AXLE GEOMETRY
B3CP07SD
Measuring front height Measuring rear height
[1]
Gauge for measuring the wheel radius, 4 bolts, tool4003T or8006T (according to version).
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 + L2
Value at reference All types Except CRD (*) Vehicle CRD (*) Value at reference All types Except CRD (*) Vehicle CRD (*)
heightRaised suspensionRaised suspensionheightRaised suspensionRaised suspension
(+ 6 8 mm)Sports Sports
(+ 10 6 mm)Sports Sports
L1 = 142,5 mm L1 = 132,5 mm L2 = 52 mm L2 = 62 mm
(*) = CRD: Difficult road conditions.
Definition for a type of vehicle whose axles and suspensions are adapted 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.
Checks at reference height

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AXLES
SUSPENSION
STEERING
A < B = Positive figure: + = TOEIN
A > B = Negative figure: = TOEOUT
WARNING
AXLE GEOMETRY
Rear axle Front axle
Dissymmetry of lower camber at 0° 18’. Dissymmetry of lower castor at
0° 30’.
Dissymmetry of lower camber at 0° 18’.Distribute symmetrically, LH / RH wheel, the total tracking value.
All types (except CRD) Raised suspension Sports
Vehicle CRD Raised suspension Sports
Vehicle TrackingCastor Camber Pivot angle
(± 0°18’) (± 0°30’) (± 0°30’)
Adjustable Non adjustable
2 ± 1
0°19’±0°10’ 3°57’ 0°28’ 11°26’
Vehicle TrackingCastor Camber Pivot angle
(±0°30’)
Adjustable Non adjustable
2 ± 1
0°19’± 0°10’ 3°53’ 0°26’ 11°14’Tracking Camber (± 0°18’)
Non adjustable
5,5 ± 1
0°50’ ± 0°10’ 1°30’
TrackingCamber
Non adjustable
5,2 ±1
0°47’ ± 0°10’ 1°28’
All
Typesmm
0°
All
Typesmm
0°
B3CP02UC
C3
(± 0°18’) (± 0°30’)

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AXLES
SUSPENSION
STEERING
AXLE GEOMETRY
Conditions for checking and adjusting
Vehicle heights at reference height
Rear height
Fr ont height
L2
L1
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.
E1AP0AUD
C3 PLURIEL
C3 Pluriel

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AXLES
SUSPENSION
STEERING
C3 PLURIEL
AXLE GEOMETR Y
B3CP07SD
Measuring front height Measuring rear height
[1]
Gauge for measuring the wheel radius, 4 bolts, tool 4003T
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 + L2
Value at referenceAll TypesValue at referenceAll Typesheight height
(+ 6 8 mm)L1 = 132,5 mm(+ 10 6 mm)L2 = 47 mm
(*) = CRD: Difficult road conditions.
Definition for a type of vehicle whose axles and suspensions are adapted 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.
Checks at reference height