hydraulic Citroen C4 2005 2.G User Guide

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CLUTCH
GEARBOX
TRANSMISSION
HYDRAULIC CLUTCH CONTROL: CHECKS AND ADJUSTMENTS
Bleeding the hydraulic clutch control
Action the clutch pedal manually through its full travel: 7 timesrapidly down and up.
Allow the clutch pedal to come back up to its high position.
Fill the brake fluid reservoir to the maximum of its capacity.
Open the bleed screw at «c».
Action the clutch pedal manually through its entire travel: 7 times
rapidly down and up.
The last time, keep the clutch pedal fully down.
Reclose the bleed screw, at «c».
If necessary, repeat the operation.
Top up the brake fluid to the MAX.level of the brake fluid reservoir.
Work the clutch vigorously 40 times
.
Start the engine.
Apply the handbrake.
Engage a gear.
Check that the clutch starts to engage at a dimension (X)greater than or equal to 45 mm
(the dimension (X)is
given as a guide).
Repeat the bleed operations if necessary.
C5FP0FQC
XSARA PICASSO
B2BP04YC
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CLUTCH
GEARBOX
TRANSMISSION
TIGHTENING TORQUES: MA/5 GEARBOX
Engines: KFU - NFU
Tightening torques (m.daN).
(6)Clutch bearing guide screw: 1 ± 0,1
(7)Bearing retaining clip screw: 1,8 ± 0,2
Intermediate plate fixing: 5 ± 0,5
Hydraulic clutch slave cylinder fixing: 3 ± 0,3
B2CP3ZJD
C4
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CLUTCH
GEARBOX
TRANSMISSION
RECOMMENDATIONS/PRECAUTIONS : AL4 AUTOMATIC GEARBOX
Procedure to be followed prior to carrying out repairs on AL4 autoactive gearbox
If a gearbox malfunction occurs, there are two possible configurations
depending on the seriousness of the fault:
- Gearbox in back-up mode with a replacement programme of
(the fault
values are taken in substitution).
- Gearbox in back-up mode with an emergency programme (3rd hydraulic).
WARNING: In the emergency programme, an impact is felt when
changing P/R, N/R and N/D.
Réception client.
Discuss with the customer, to find out all the malfunction symptoms.
Oil quality - Oil level.
Oil quality.
If the gearbox has suffered a serious fault resulting in a malfunction or
the destruction of a clutch, the oil will overheat and become
contaminated with impurities: the oil is said to be «burnt».
This is characterised by a black colour and the presence of an
unpleasant smell.
ESSENTIAL: The gearbox must be replaced.Oil level
(see corresponding operation).
An excessive oil level can result in the following consequences:
- Excessive heating of the oil.
- Oil leaks.
An insufficent level causes the destruction of the gearbox.
Top up the level of oil in the gearbox
(if necessary).
Check using a diagnostic tool.
Read the fault codes
(engine and gearbox).
Absence of fault codes.
Carry out parameter measures, actuator tests and a road test.
Presence of fault codes.
Carry out the necessary repairs.
Delete the fault codes.
Carry out a road test to check the repair and, if need be, modify the
gearbox ECU parameters
(this is essential after an initialisation of the
ECU).
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CLUTCH
GEARBOX
TRANSMISSION
C4 - XSARA - XSARA PICASSOTIGHTENING TORQUES: AL4 AUTOMATIC GEARBOX
Engines: NFU - RFJ
B2CP3EED
B2CP3X8C
Tightening torques (m.daN).
(8) Fixing of converter on diaphragm
Pre-tightening: 1 ± 0,1
Tightening: 3 ± 0,3
(9)Plug fixing: 0,8 ± 0,2
(10)Gearbox fixing on engine: 5,2 ± 1
Hydraulic block fixing.
Centre the hydraulic block, using screws (11) and (12)
Pre-tighten
(no strict order): 0,9
Slacken: All 7 screws
Tighten
(respect the order indicated): 0,75
NOTE: The screw (11)is shouldered.
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AXLES
SUSPENSION
STEERING
C4TIGHTENING TORQUES: POWER-ASSISTED STEERING
Steering column
Ref. Description Tightening
1Fixed central controls steering wheel screw2,2 ± 0,2
2Steering column interface nuts
3Upper nuts
4Lower nuts
5Fixing of steering cardan on valve stem
Steering mechanism with integral ram
Ref. Description Tightening
6Union of hydraulic pipe on ram0,8 ± 0,1
7Fixing of distributor valve on steering mechanism1,5 ± 0,1
8Fixing of bracket on distributor valve2 ± 0,2
9Union of hydraulic pipe on distributor valve0,8 ± 0,1
10Steering ball-joint nut3,5 ± 0,3
11Locking nut for adjustment of steering track rods5,5 ± 0,5
12Fixing of ball-joint on steering rack7 ± 0,7
13Stud on steering mechanism0,8 ± 0,1
14Nut fixing mechanism on subframe8 ± 0,8
B3EP177D
B3EP176D
2,2 ± 0,2
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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
TIGHTENING TORQUES: POWER-ASSISTED STEERING
Power steering
XSARA
Tightening torques (m.daN).
(7)Pivot ball-joint nut: 4
(8)Link rod lock nut: 4.5
(9)Ball-joint on steering rack: 6
(10)Fixing on subframe: 5
(11) Hydraulic pipe connection: 2.5
(12)Valve to housing fixing: 1.2
(13)Plunger flange screw: 1.2
(14) Screw fixing the steering ram
to the housing: 5.5
(15)Nut fixing the steering ram
to the yoke: 5.5
B3EP08RD
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AXLES
SUSPENSION
STEERING
TIGHTENING TORQUES: POWER-ASSISTED STEERING
Tightening torques (m.daN).
(7) Pivot ball-joint nut: 4 ± 0.4
(8) Steering rod adjusting lock nut: 4.5 ± 0.4
(9)Ball-joint on steering rack: 6 ± 0.6
(10) Fixing steering on subframe: 8 ± 0.8
(11)Hydraulic pipe connection: 2.4 ± 0.2
(12)Power steering valve: 1.2 ± 0.2
(13)Plunger flange screws: 1.2 ± 0.2
(14)Steering ram screw on housing: 9 ± 1
(15) Steering ram screw on yoke: 9 ± 1
NOTE:When removing the steering, it is imperative to replace screws
(14)and (15)
(new screws).
B3EP117D
XSARA PICASSO
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AXLES
SUSPENSION
STEERING
TIGHTENING TORQUES: POWER-ASSISTED STEERING
Tightening torques (m.daN).
Unions between pump unions and power steering valve: 2 ± 0.3
(16)Fixing screw: 2.2 ± 0.3
(17)Fixing screw: 2.2 ± 0.3
(18) Fixing screw: 2.2 ± 0.3
NOTE: Coat the threads with product «E3».
A pressure switch is implanted in the hydraulic piping between the high
pressure pump and the power steering valve.
- Opening pressure = 30 / 35 bars.
- Closing pressure = 25 barsminimum.
Tightening torque = 2 ± 0.2.
B3EP118D
XSARA PICASSO
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BRAKES
TIGHTENING TORQUES: BRAKING SYSTEM
Front brakes
1Front brake disc1 ± 0,1
2Yoke on caliper3 ± 0,3
3Unions on brake piping1,5 ± 0,1
4Caliper on pivot10,5 ± 1
5ABS/ESP hydraulic block support on the chassis member0,2 ± 0,1
6Wheel sensor0,8 ± 0,1
B3FP7DVD
B3FP7DWD
C4
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