Get Axles, Suspension, Steering -> Checking the Steering Assistance Pressure Guide for Citroen C6 4 Door First Generation (2005-2012)

CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)

Tools.

[1] Pipe spanner

[2] Set of 2 hose clamps

: FACOM 18.17

: 4153-T

[3] Pressure checking assembly

[3a] Pressure gauge

[3b] Checking tube: Pressure gauge to tap

[3c] Checking tube: High pressure pipe to tap

[3d] Checking tube: High pressure pump to tap

[3e] 3-way tap

[4] Union

[5] Union

[6] Plug for checking sealing of the steering valve

:

: (-).0710.AZ

: (-).0710.B1

: (-).0710.B2

: (-).0710.B3

: (-).0710.C

: (-).0710.E1Z

: (-).0710.E2Z

: (-).0410.N

E5AP2PND

Precautions to be taken.

Work with care to avoid entry of polluting particles.

NOTE: Correct operation of the system requires the LDS fluid and the hydraulic components

to be perfectly clean.

Check:

- The level of the LDS fluid (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].

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165

CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)

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.

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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 1200 and 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.

B1BP3GRD

166

CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)

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 LDS fluid in a tray.

B1JP08WD

Refit the exhaust line (3).

Open the tap [3e].

Start the engine.

Hold the engine speed between 1200 and 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.

B3EP185D

167

CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)

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].

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- 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).

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168

Axles, Suspension, Steering -> Checking the Steering Assistance Pressure for Your Citroen C6 4 Door First Generation (2005-2012)

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