2005 CITROEN C6 suspension

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AXLES
SUSPENSION
STEERING
(1)Driver's airbag
(2)Steering wheel
(3)Controls under the steering wheel
(4)Steering lock
(5)Fixing of steering wheel on the shaft of the steering column
(6)Steering column support
(7)Fixing of steering cardan on the distributor valve stem
C5FP0U2DB3EP17SD
POWER STEERING SPECIFICATIONS
Top of columnSteering column
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AXLES
SUSPENSION
STEERING
The steering mechanism with integral ram is fixed on the front subframe by twostuds.
The steering assistance valve has groove technology.
The hydraulic supply and return pipes are fixed on the steering assistance valve by means of
a flange.
The adjustment of the steering push-rod is via a screw plug «a».
IMPERATIVE: The toothed washers «b» must be placed between the steering mechanism
and the front subframe.
Engines ES9A/DT17BTED4.
Steering rack travel: 90 mm x 2.
Number of teeth on the distributor valve pinion: 9.
Steering ratio: 1/61,26.
Number of rotations of steering wheel (from lock to lock): 2,94.
Inner angle of lock: 37°25'.
Outer angle of lock: 31°36'.
B3EP17TD
POWER STEERING SPECIFICATIONS
Steering mechanism
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AXLES
SUSPENSION
STEERING
(8)Steering assistance valve
(9)Steering mechanism with integral ram
(10)Low pressure piping
(11)High pressure piping
(12)Power steering pump
(13)LDS fluid reservoir
LDS fluid reservoir.
The LDS fluidreservoir supplies the suspension circuit as well as the steering assistance
circuit (fluid: LDS TOTAL H50126).
Steering assistance pump with constant flow (engines: ES9A, DT17).
The power steering pump is driven by the accessories belt.
A stepper motor incorporated in the steering assistance valve modulates the steering assistance
as a function of the vehicle speed.
Regulation pressure: 115 ± 5 bars.
Diameter of the pulley of the power steering pump.
Engine ES9A : 128 mm.
Diameter of the pulley of the power steering pump.
Engine DT17BTED4 : 100 mm.
B3EP17UD
POWER STEERING SPECIFICATIONS
Steering assistance circuit
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AXLES
SUSPENSION
STEERING
Setting the steering rack mid-point.
IMPERATIVE: Respect the precautions to be taken prior to any operation (refer to the
brochure "Recommendations-precautions").
Preliminary operation.
Raise and support the vehicle on 2-column lift.
Remove (on the RH side):
- The clip (1).
- The clip (2).
Detach the steering rack protection gaiter.
Setting.
Turn the steering wheel to full LHlock.
Measure the dimension X.
Turn the steering wheel to full RHlock.
Measure the dimension Y.
Calculate the dimension L = (Y - X) : 2.
Position the steering rack to the dimension "L"(mid point of the steering rack).
Additional operation.
Refit:
- The protection gaiter.
- The clip (2).
- The clip (1)(new).
B3EP13UCB3EP13VD
POWER STEERING SPECIFICATIONS
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AXLES
SUSPENSION
STEERING
POWER STEERING: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
1 Steering wheel bolt 3,3 ± 0,52 Upper nuts 2 ± 0,33 Lower nuts 2 ± 0,34 Fixing of steering cardan on valve stem 2 ± 0,35 Union of hydraulic pipe on ram 1,4 ± 0,356 Fixing of supply pipes bracket on distributor valve 0,8 ± 0,17 Fixing of distributor valve on steering mechanism 2 ± 0,28 Steering ball-joint nut 3,5 ± 19 Locking nut for adjustment of steering track rods 5,3 ± 0,810 Fixing of steering rack ball-joint 9,0 ± 0,911 Steering mechanism stud 0,9 ± 0,212 Steering mechanism nut 14 ± 1,4
B3EP17HDB3EP17GD
Steering column
Steering mechanism with integral ram
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AXLES
SUSPENSION
STEERING
POWER STEERING: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
13 Fixation of steering assistance pump on support 2,5 ± 0,614 Fixation of pulley on steering assistance pump 0,8 ± 0,215 Fixation of pulley on steering assistance pump 2,2 ± 0,316 Fixation of steering assistance pump on support 2 ± 0,3
B3EP17KCB3EP17JC
Steering assistance pump:
ES9A engineSteering assistance pump:
DT17BTED4 engine
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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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