2005 CITROEN C6 check engine

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AXLES
SUSPENSION
STEERING
(10)Rear anti-roll bar bearing
(11)Rear anti-roll bar bearing half-support
(12)Rear anti-roll bar
(13)Rear anti-roll bar rod
NOTE:The rear anti-roll bar bearings are not separable.
Anti-roll bar
Engines Diameter (mm) Colour ref.
ES9A - DT17BTED4 20,6 Orange
Vehicle geometry.
NOTE: The geometry specifications are given with the values for checking and adjusting the
axle geometries.
B3BP1AED
REAR AXLE
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AXLES
SUSPENSION
STEERING
(10)Rear suspension cylinder
(11)Rear suspension accumulator
(12)Variable damping suspension actuator
(13)Suspension pressure sensor
(14)Rear stiffness regulator accumulator
(15)Rear stiffness regulator
(16)Wheel travel sensor
Source of pressure.
Features.
Hydraulic fluid : LDS TOTAL H50126.
The LDS fluid orangein colour is 100% synthetic.
Capacity of the hydraulic circuit: 6.3 litres.
NOTE: LDS:Liquide Direction Suspension(steering/suspension fluid).
«a» LDSfluid reservoir filler (cap)
«b»Suction (BHI)(power steering pump)
«c»Return (stiffness regulators)
«d»Return (power steering pump)
«e»Return (filter)
«f»Suction (filter)
The level of the LDSfluid must be checked with the vehicle in the low position (refer to the
procedure «Depressurisation: suspension circuit»).
B3DP0BSDB4BP01SD
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Rear axle
LDS fluid reservoir
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AXLES
SUSPENSION
STEERING
Bleeding.
Connect tool [2]or [3]to the vehicle's diagnostic socket.
Switch on the ignition.
Perform a global test.
Go into the menu:
- Variable damping.
- Bleeding the suspension circuit.
Follow the instructions on the screen.
Apply a pressure of 0.5 barin the LDSfluid reservoir (using a tool FACOM 920).
Start the engine.
Wait for the vehicle height to stabilise.
Place the vehicle in the high position.
Place the vehicle in the low position.
Move the steering in each direction, from lock to lock.
Stop the engine.
Check the LDSfluid level.
B3FP7HGD
DRAINING, FILLING AND BLEEDING THE HYDRAULIC SUSPENSION/STEERING CIRCUIT
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SUSPENSION
STEERING
Checking and topping up the LDS fluid level.
NOTE:Checking the LDSfluid level is done with the vehicle in the forced low position
(hydraulic suspension circuit depressurised).
"a"Maximum level for the LDSfluid
"b"Minimum level for the LDSfluid
Open the cap (3).
If necessary, add LDSfluid up to the maximum level "a".
IMPERATIVE: A container of LDS that has been opened must be sealed and kept in a
clean place. A container of LDS has to be used up within two weeks of opening, after
which any unused LDS fluid must be disposed of.
B3FP7HGD
DRAINING, FILLING AND BLEEDING THE HYDRAULIC SUSPENSION/STEERING CIRCUIT
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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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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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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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