check engine CITROEN C6 2005 Repair 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].
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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.
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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.
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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).
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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
VALUES FOR CHECKING AND ADJUSTING THE BRAKING SYSTEM
Front brakes Rear brakes
Engines ES9A - DT17BTED4 Engines ES9A - DT17BTED4
Type Ventilated brake discs Type Ventilated brake discs
Diameter (mm) 330 Diameter (mm) 302
Nominal thickness (mm) 30 Nominal thickness (mm) 22
Minimum thickness (mm) 28 Minimum thickness (mm) 20
Difference in maximum thickness Difference in maximum thickness
on same circumference (mm)0,01
on same circumference (mm)0,01
Maximum run-out (mm) 0,05 Maximum run-out (mm) 0,05
Front brake pads (engines all types) Rear brake pads (engines all types)
Nominal thickness (mm) 13 Nominal thickness (mm) 11,15
Minimum thickness (mm) 3 Minimum thickness (mm) 2
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BRAKES
ELECTRIC PARKING BRAKE SYSTEMSlacken the nuts (7).
Remove the electric parking brake system assembly.
Refitting.
Refit the electric parking brake system assembly.
Tighten the nuts(7) : 0,4 ± 0,1 m.daN.
Attach the brake cables on their attachments on the bodywork.
Clip the parking brake cable, at "a"(on each side).
Couple the parking brake cable (6)on the brake caliper (on each side).
IMPERATIVE: Position the shim (8) (thickness 3 mm)at "c" (on each side).
Engage the manual unlocking cable of the electric parking brake in its location at "b".
Couple the handle (2)to the parking brake cable.
Refit the central console (1)(see corresponding operation).
Refit:
- The protections (5)and (3).
- The exhaust line (4) (ES9A engine).
Reconnect the battery.
Apply and release the electric parking brake.
Check the functioning of the electric parking brake.
NOTE:Remove the shim (8)from the brake calipers.
IMPERATIVE: Perform the operations that are necessary following a reconnection of the battery
(see corresponding operation).
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BRAKES
ELECTRIC PARKING BRAKE CABLESManual unlocking cable end.
NOTE:Grease the cable worm (6).
Engage the parking brake cable (6)into the electric parking brake system.
Do up 3 turnsanti-clockwise at "b".
NOTE:Align the pin "g"with the notch "f".
Do up the nut (3).
Tighten the nut (3)to : 0,6 ± 0,1 m.daN.
Refit the electric parking brake system (see corresponding operation).
Reconnect the battery.
Apply and release the electric parking brake.
Check the functioning of the electric parking brake.
IMPERATIVE: Perform the operations that are necessary following a reconnection of the
battery (see corresponding operation).
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BRAKES
BRAKE FLUID CHECKS
IMPERATIVE: Respect the safety and cleanliness requirements.
WARNING: Brake fluid is toxic to health. Avoid any contact with your skin or with your eyes. If there is contact with your eyes, rinse immedia-
tely with copious amounts of water for several minutes.
WARNING: Brake fluid is highly corrosive to paintwork. If there is spillage onto the bodywork, clean the surface immediately.
Tools: Brake fluid tester (*):
Supplier Reference Type
SURETEST TLF
DOW AUTOMOTIVE BETATEST Measures the boiling point of brake fluid
FACOM OUTILLAGE DF.16
EBT 06.1 Measures the rate of hydrometry of brake fluid
(*) The list not exhaustive, refer to the catalogue "Tools and Equipment".
Checks.
Remove the filter of the brake fluid reservoir.
IMPERATIVE: Any pollution of the brake fluid is forbidden. The brake fluid should be limpid and free of suspended matter or sediments.
Check the brake fluid, following the method recommended by the supplier of the testing equipment.
Test values:
Brake fluid Minimum boiling point «Humid»
DOT 3 140°C
DOT 4 155°C
SUPER DOT 4
180°C
DOT 5
NOTE:If the tested value is lower than the minimum "humid"boiling point or within a tolerance of +10 %of this value, replace the brake fluid
(see corresponding operation).
IMPERATIVE: Use exclusively the hydraulic fluids that are approved and recommended.
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BRAKES
DRAINING, FILLING AND BLEEDING THE BRAKING SYSTEM
Using the bleeding apparatus.
Connect the bleeding apparatus [1]on the brake fluid reservoir (4).
Adjust the apparatus pressure to 2 bars.
For each brake circuit:
- Connect a transparent tube onto the bleed screw.
- Submerge the other end of the tube in a clean container.
- Open the bleed screw.
- Wait until the fluid is flowing out without air bubbles.
- Close the bleed screw.
- Remove the bleeding apparatus.
- Check the brake fluid level (should be between «DANGER»level and «MAXI»level).
- Fill if necessary with the approved and recommended synthetic brake fluid.
Without bleeding apparatus.
NOTE:Two operators are necessary.
For each brake circuit:
- Apply the brake pedal to place the circuit under pressure.
- Connect a transparent tube onto the bleed screw.
- Submerge the other end of the tube in a clean container.
- Open the bleed screw.
- Wait until the fluid is flowing out without air bubbles.
- Close the bleed screw.
NOTE:Recommence the process a second timeif that is necessary.
- Check the brake fluid level (should be between «DANGER»level and «MAXI»level).
- Fill if necessary with the approved and recommended synthetic brake fluid.
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