valve Citroen C4 2005 2.G Workshop Manual

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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
Preliminary operation.
Move aside the high pressure pipe (1).
Do up:
- The union [6]on the power steering electropump.
- The union [7]on the high pressure pipe (1).
- Tighten all the unions.
Fill the power steering reservoir 10 mmabove the max. level.
IMPERATIVE: Use new power steering fluid for both filling and topping-up the circuit.
Open the tap [5].
Start the engine and allow it to run for 5 seconds.
Stop the engine.
Move the steering several timesin each direction.
Check the steering fluid level and make sure that there are no leaks.
Checking the electropump pressure.
Start the engine.
Close the tap [5]for 5 seconds.
Open the tap [5].
Stop the engine.
At accelerated idle
(1200 to 1500rpm), the pressure should be 105 ± 5 bars.
If the electropump pressure is correct, check the valve sealing.
B3EP16EC
C4
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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
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
XSARA
Power-assisted steering assembly
T
ightening torques (m.daN).
High pressure tube (rubber seal pump side)Power-assisted valve and pump union: 2.5
Return pipe.
Power-assisted valve union: 2.5
(16)Upper front fixing (E3) : 2.5
(17)Upper rear fixing (E3) : 2.2
(18)Fixing (E3) : 2.2
Tightening sequence.
Tighten screws (16) and (18).
Lightly tighten screw (17), then fully tighten.
Pressure switch on the pressure circuit.
Switch opens 30to 35 bars.
Switch closes 25 bars.
Tighten to: 2 m.daN.
B3EP045D
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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
22,2 (in valve) (1)
22,86/BOSCH/EVA2 (2)25,4/ BOSCH/MCT8 (2)
BOSCH/ZOH 54/22 BOSCH/ZOH 54/26
266 283
22/20 26/24
FEDERAL MODUL/F769 GALFER/G4554
BOSCH/TRW C38
249
9/7
GALFER/G4554
BRAKE SPECIFICATIONS
Master cylinder
ØAmplifier
FT mm Supplier/pistons
Disc Ventilated
Disc thickness
Brake pad grade
ØCylinder or caliper
RR mm Disc Plain
Disc thickness
Brake pad gradeWith ABS
ET3J4 TU5JP4 DV6 TU5JP4
Manual Auto.
(1) AFU system (EBA) =Emergency Brake Assist (incorporated as standard).(2) AFD system =Automatic lighting of hazard warning lamps on emergency braking (incorporated as standard).Brake fluid reservoir.Supplier: BOSCH, brake fluid quality: DOT 4.
The brake fluid reservoir is in 2 parts: the principal reservoir (equipped with a level detector)and a separate reservoir, they are linked by a rislan
pipe by means of a clickfit union.
C4
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BRAKES
Without ABS 23,8 (expansion holes)With ABS 23,8 (valve)
228,6
BOSCH 54 LUCAS 57 BOSCH 54
266 283 266
22 / 20
FERF 769 ASFM 380 FERF 769
13 / 2
228 / 230 228 / 230
247 247
8 / 6 8 / 6
JURID
E 558 519 E 558 519
BOSCH/Load-sensitive compensator
32
0,3 - White
BRAKE SPECIFICATIONS
Estates
TU3JP TU5JP4 EW10J4 DW8 DV4TD DW10TDDW10
ATED
FTØ
mmMaster cylinder
Amplifier
Caliper makes/pistons
Disc
Disc thickness/min. thicknessVentilated
Brake pad grade
Thickness/min. thickness
RRØ
mmDrum - Ø min./max.
Disc non-ventilated
Make
Brake lining grade
Make/type
Cut-off pressure in bars
Ramp/paint reference
Disc thickness/min. thickness
XSARA
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BRAKES
ABS/ESP HYDRAULIC BLOCK XSARA
Braking system specifications
- 'X'braking circuit.
- Front: disc brakes, ventilated
(according to model).
- Rear: drum brakes with automatic adjustment.
- Cable operated handbrake acting on the rear wheels.
(1)Hydraulic valve block «ABS Bosch 5.3»or
(1)Hydraulic valve block «ABS Bosch 5.3 REF»or
(1)Hydraulic valve block «ABS with ESP Bosch 5.7».
(2)Load sensitive braking compensator
(according to model).
B3FP09HC
B3FP09JC
2
1
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