Citroen C3 2004 1.G Workshop Manual

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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
REAR AXLE
Tightening torques (m.daN).
(25) Rear axle fixing screw: 10 ± 1
(26)Antiroll bar:
(27)Rear axle crossmember:
(28)Rear suspension arm silentblock yoke:
(29)Rear suspension arm silentblock:
(30)Yoke / suspension arm fixing screw:7 ± 0,5
(31)Rear suspension arm:
(32)Stub axle bearing nut: 20 ± 2
(33)Damper:
(34)Damper upper fixing:4,5 ± 0,4
(35) Damper lower fixing: 9,3 ± 0,9
(36)Suspension springs:
(37)Travel stop:
(38)Secondary brake cable guide support:
Private vehicles Antiroll bar
Europe
Diameter (mm)
HFX KFV20,5
(tubular)
8HX 23,5 (tubular)
NFU 25 (solid)
Vehicle entreprise Diameter (mm)
8HX 20,5
(tubular)
CRD vehiclesDiameter (mm)
8HX 20,5
(tubular)
NFU 25,5 (tubular)B3DP09UP
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
FEATURES OF ELECTRIC POWER STEERING
Engines: HFX KFV NFU 8HX
Steering column
Tightening torques (m.daN.).
(1)
Steering wheel fixing:2 ±0,3
(2)
Steering column fixing on support:2,2 ± 0,5
(3)
Steering cardan fixing: 2,2 ± 0,2Identification.
Identified by the colour of the ring at «a».
Left hand drive
:BLUE ring.
Right hand drive
: WHITE ring.
B3EP13GDB3EP13HC
C2

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AXLES
SUSPENSION
STEERING
FEATURES OF ELECTRIC POWER STEERING
Engines: HFX KFV NFU 8HX
Steering mechanism
Tightening torques (m.daN.).
(4)
Balljoint fixing on pivot:3,5 ± 0,3
(5)
Steering rod locknut: 5 ± 0,5
(8)
Threaded washer
(9)Stud: 0,8 ± 0,1
(10)
Flat washers
(11)Fixing of mechanism on subframe:8 ± 0,8
Connectors.
(6)
Supply of electric assistance motor
(7)Torque sensor signals
HFX KFV 8HXNFU
Electric motor 60 A 65 A
Steering rack travel2x722x64
Steering ratio45,6/1
Number of rotations of
steering wheel 3,22,8
Inner angle of lock 38° 32°30’
Outer angle of lock 32°24’ 28°42’
B3EP13JD
C2

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AXLES
SUSPENSION
STEERING
FEATURES OF ELECTRIC POWER STEERING
Engines: HFX KFV NFU 8HX
Steering assistance
Supplier:KOYO.
The steering assistance is rpovided by the assistance motor
(12),
controlled by the ECU.
Power delivered to the assistance motor
(12)depends on:
Speed of the vehicle.
Torque applied on the steering wheel.Only one ECU version, whatever the enginetype.
The electric power steering ECU is linked to the following connectors:
(6)Assistance motor supply.
(13)Electric power steering ECU supply.
(14)Control signals.
After changing the electric power steering ECU, it is necessary to
perform a configuration.
B3EP13KCB3EP13LC
C2
Electric power steering ECU

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AXLES
SUSPENSION
STEERING
SPECIAL FEATURES: STEERING
Engines: HFX KFV NFU 8HX
Centring the steering rack
Preliminary operation.
Raise and support the vehicle on a twocolumn lift.
Remove, on the RH side of the steering rack:
Clip
(1).
Clip (2).
Release the steering rack rpotection gaiter.
Setting.
Move the steering to full left hand lock.
Measure the dimension X.
Move the steering to full right hand lock.
Measure the dimension
Y.
Calculate the dimension:
L = (Y – X) : 2.
Refit:
The steering rack rpotection gaiter.
New clips
(1)and (2).
B3EP13UC
B3EP13VD
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