CITROEN C6 2005 Owners Manual

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AXLES
SUSPENSION
STEERING
Tools.
[1]Pipe spanner: FACOM 18.17
[2]Set of 2 hoseclamps: 4153-T
[3] Pressure checking assembly:
[3a]Pressure gauge: (-).0710.AZ
[3b]Checking tube: Pressure gauge to tap: (-).0710.B1
[3c]Checking tube: High pressure pipe to tap: (-).0710.B2
[3d]Checking tube: High pressure pump to tap: (-).0710.B3
[3e] 3-waytap: (-).0710.C
[4]Union: (-).0710.E1Z
[5]Union: (-).0710.E2Z
[6] Plug for checking sealing of the steering valve: (-).0410.N
Precautions to be taken.
Work with care to avoid entry of polluting particles.
NOTE:Correct operation of the system requires the LDSfluid and the hydraulic components
to be perfectly clean.
Check:
- The level of the LDSfluid (see procedure: drain-fill-bleed the suspension circuit).
- The condition of the piping and unions.
Using the tools.
Prepare the checking assembly [3], [4]and [5].
Remove the bracket (1).
Clamp the pipe at "a", using tool [2].
Uncouple and move aside the piping (2), using tool [1].
E5AP2PNDB1BP3GPD
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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AXLES
SUSPENSION
STEERING
Attach the tool [3a].
Do up:
- The union [5]on the pipe (2).
- The union [4]on the steering assistance pump.
Connect the assembly [3]to the unions [4]and [5].
Tighten all the unions.
Remove the tool [2].
Open the tap [3e].
Start the engine and allow it to run for 5 seconds.
Stop the engine.
Move the steering several times in each direction.
Check that there are no leaks.
Checking the steering assistance pump pressure.
Start the engine.
Close the tap[3e]for 5 seconds.
Open the tap [3e].
Accelerate between 1200and 1500 rpm, the pressure should be: 115 ± 5 bars.
Stop the engine.
If the steering assistance pump pressure is correct, check the sealing of the valve.
B1BP3GQDB1BP3GRD
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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AXLES
SUSPENSION
STEERING
Checking the valve sealing.
Remove the exhaust line (3).
Move aside the heat shield from the steering mechanism.
Slacken the union (6)on the power steering ram.
Remove:
- The screw (4).
- The bracket (7).
Uncouple the two supply pipes (5)from the distributor valve, and move them aside.
Fit on the distributor valve the tool [6], tighten the screw to: 0,8 ± 0,1 m.daN.
Couple two pipes at the outlets of the pipes (5).
Move the steering slowly from lock to lock, to drain the ram.
Collect the LDSfluid in a tray.
Refit the exhaust line (3).
Open the tap [3e].
Start the engine.
Hold the engine speed between 1200and 1500 rpm.
Hold the steering at full lock to the right, then at full lock to the left.
The pressure should adjust to: 115 ± 5 bars.
B1JP08WDB3EP185D
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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AXLES
SUSPENSION
STEERING
Remove:
- The exhaust line (3).
- The tool [6].
Couple the two supply pipes (5)on the distributor valve.
Refit:
- The bracket (7).
- The screw (4), tighten to 0,8 ± 0,1 m.daN.
Retighten the union (6)on the power steering ram; tighten to 1,4 ± 0,35 m.daN.
Refit the exhaust line (3).
Pinch the pipe at "a", using tool [2].
Remove:
- The assembly [3].
- The union [5]on the pipe (2).
- The union [4]on the steering assistance pump.
Couple the pipe (2), using tool [1].
Tighten the pipe (2)to 2 ± 0,2 m.daN.
Refit the bracket (1).
Bleed the hydraulic steering assistance circuit (see corresponding operation).
Top up the level of the LDS fluid (see procedure: drain-fill-bleed the suspension circuit).
B1JP08WDB3EP185D
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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AXLES
SUSPENSION
STEERING
Precautions to be taken.
Proceed with care so as to prevent any entry of polluting particles.
IMPERATIVE: Respect the safety and cleanliness requirements.
IMPERATIVE: Fill the LDS fluid reservoir with new fluid: TOTAL LDS.
Bleeding.
Check the level and top up the LDSfluid (see procedure: drain-fill-bleed the suspension circuit).
Apply a pressure of 0.5 barin the LDSfluid reservoir (using tool FACOM 920).
Start the engine.
Wait for the vehicle height to stabilise.
Move the steering in each direction, from lock to lock.
Stop the engine.
Check the level and top up the LDSfluid (see procedure: drain-fill-bleed the suspension circuit).
BLEEDING THE HYDRAULIC STEERING ASSISTANCE CIRCUIT
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BRAKES
3.0i 24S 2,7 24S
ES9A DT17BTED4
23,8 / 19,8/20,2/AFU (1)
254 / TEVES / AMCT / AFT(2)
TRW / C II 40 + 45 WE - 30-12 PE / 40 et 45
330
30/28
JURID-966 (with wear warning lamps)
TRW / C38 HR-PEX / 38
302
22/20
GALFER / G4555
BRAKE SPECIFICATIONS
Master cylinder/diameter/travel
Amplifier/supplier/type
FTSupplier/type/piston diameter
Disc diameter Ventilated
Disc thickness/min. thickness
Brake pad grade
Caliper/supplier/type/piston diameter
RRDisc diameter Ventilated
Disc thickness/min. thickness
Brake pad grade
Engine plate(1) AFU= Emergency braking assistance.
(2) AFT =Automatic lighting of hazard lamps under emergency braking.
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BRAKES
B3FP7GED
BRAKING SYSTEM: GENERAL SPECIFICATIONS
Braking system
Braking circuit in the form of anX.
Disc brakes at the front and at the rear
(vehicles all types):
- The front brake discs are ventilated.
- The rear brake discs are ventilated.
Electric parking brake (FSE)acting via cables on the
rear wheels.
The compensator and main brake limiter functions are
assured by the ABS REFsystems.
ESPis fitted as standard on the entire range.
NOTE: - REF (EBD) =Electronic Brakeforce
Distribution.
- ESP =Electronic Stability Programme.
Braking circuit
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BRAKES
B3FP7GFC
BRAKING SYSTEM: GENERAL SPECIFICATIONSComponents Supplier Reference Observations
Hydraulic valve blockLocated on the front LH chassis member:
TRWESP 4regulation channels
ECUVSC 440
25-way connector
Integral to the hydraulic valve block
2-way blackconnector
Front wheel sensor The sensors, of inductive type, are fitted on the pivot
SIEMENSAir gap non-adjustable: 0.25 to 1.65 mm
VDO 2-way blackconnector
Rear wheel sensor The sensors, of inductive type, are fitted on the pivot
Air gap non-adjustable: 0.23 to 1.35 mm
Front pivot bearingThe hub has a bearing with integral magnetic wheel
NSK(48 pairs of poles)
Rear hub bearingThe rear hub-bearing has a radial ABS target
(48 pairsof poles)
ABS/ESP hydraulic valve block
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BRAKES
C5FP0T8C
BRAKING SYSTEM: GENERAL SPECIFICATIONS
(1)Electrically-controlled parking brake system(FSE)
(2)Parking brake cables
(3)Cable for manual unlocking of the electric parking brake (FSE).
WARNING: It is forbidden to open the electric parking brake system in After Sales. If a
malfunctioning of the electric parking brake is diagnosed, it is necessary to replace it.
Changing of the parking brake cables does not necessitate opening of the electric parking
brake system (see corresponding operation).
(4)Handle for manual unlocking of the electric parking brake (FSE)
(5)Switch for the electric parking brake (FSE)
If it is impossible to release the electric parking brake, a handle (4)located in the front central
armrest will mechanically unlock the electric parking brake.
Parking brake
B3FP7GDD
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BRAKES
TIGHTENING TORQUES: BRAKING SYSTEM
Front brakes
1 Front brake disc 1 ± 0,12 Yoke on brake caliper 3 ± 0,23 Unions on brake piping 4 ± 0,54 Front brake caliper 11,5 ± 1
5 Hydraulic valve block on intermediate support
0,8 ± 0,26 Intermediate support on support7 Front wheel sensor 0,8 ± 0,1
B3FP7HNDB3FP7HMD
B3FP7HPD
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