2005 CITROEN C6 ESP

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BRAKES
DRAINING, FILLING AND BLEEDING THE BRAKING SYSTEM
Filling the braking circuit.
WARNING: Use only the approved and recommended hydraulic fluids.
IMPERATIVE: Only use new brake fluid that has not emulsified; avoid any introduction of
impurities into the hydraulic circuit.
Fill the brake fluid reservoir (4).
Bleeding the primary braking circuit.
WARNING: During the bleed operations: take care to maintain the level of the brake fluid in
the reservoir, keep it topped up.
WARNING: The ABS system must not be in action during the bleed operation.
WARNING: Respect the sequence for the opening of the bleed screws.
Frontbrake caliper : Bleed screw (5).
Rearbrake caliper : Bleed screw (6).
Bleed each brake caliper, proceeding in the following sequence:
- Front LH wheel.
- Front RH wheel.
- Rear LH wheel.
- Rear RH wheel.
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BRAKES
DRAINING, FILLING AND BLEEDING THE BRAKING SYSTEM
Bleeding the secondary braking system.
WARNING: During the bleeding operation, take care to maintain the level of brake fluid in
the reservoir and to top it up.
NOTE:Connect the bleeding apparatus [1]on the brake fluid reservoir (4).
Use the diagnostic tools [2] or [3].
Select the menu ESP VSC 440.
Bleed sequence: Menu ESP.
- Front LH wheel.
- Front RH wheel.
- Rear LH wheel.
- Rear RH wheel.
Follow the instructions given by the diagnostic tool.
At the end of the bleeding programme, check the brake fluid level and top up, if necessary.
Check the brake pedal travel (no lengthening), if not satisfactory repeat the bleeding procedure.
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Downloaded from www.Manualslib.com manuals search engine SAFETY REQUIREMENTS: ACTIVE SUSPENSION WITH VARIABLE DAMPING
All operations on the hydraulic suspension circuit must be performed in conformity with the following requirements and regulations:
Authorities competent in matters of health:
- Accident prevention.
- Environmental protection.
WARNING: Operations should be carried out by specialised personnel who have had training in the safety requirements and precautions to
be taken.
Safety requirements.
ESSENTIAL: In view of the special features of the hydraulic suspension system, observe the requirements below, before undertaking any
repair.
IMPERATIVE: Depending on the operation to be carried out, respect the requirements for supporting and securing the vehicle.
Wheels hanging Wheels not hanging
Vehicle on the ground Vehicle on 4-column lift
2-column lift or secure the Depressurisation of the circuit Checking and adjusting of Other operations
vehicle on 4 axle stands(see corresponding operation)heights (switch on ignition) (depressurisation of the
hydraulic circuit)
HYDRAULICS
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HYDRAULICS
SAFETY REQUIREMENTS: ACTIVE SUSPENSION WITH VARIABLE DAMPING
During the operation.
Wait for the pressure in the hydraulic circuit to fall fully before disconnecting the unions on the following components (risk of sudden sinking of the
vehicle):
- Built-in Hydro-electronic Interface (BHI).
- Front suspension cylinder.
- Rear suspension cylinder.
- Front stiffness regulator.
- Rear stiffness regulator.
- Suspension pressure sensors.
IMPERATIVE: Do not operate on the hydraulic circuit without making the pressure drop (see corresponding operation).
Engine running.
Do not operate on the hydraulic suspension circuit.
Always remain out of range of any possible projections of fluid, as these could cause serious injuries.
NOTE:In the event of contact of LDSfluid with the eyes, rinse them with copious amounts of water and seek specialist advice.
NOTE:In the event of lengthy contact of LDSfluid with the skin, wash it with soap and water.
WARNING: After the engine has stopped, wait 30 seconds before commencing any operation.
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Downloaded from www.Manualslib.com manuals search engine HYDRAULICS
197
SAFETY REQUIREMENTS: ACTIVE SUSPENSION WITH VARIABLE DAMPING
IMPERATIVE: Do not remain underneath the vehicle during an operation to adjust vehicle heights or during actuator (electrovalve) tests.
IMPERATIVE: Any deforming of the wheel travel sensor supports is forbidden. If there is any deformation found, replace the component.
Cleanliness requirements.
WARNING: Non-respect of the cleanliness requirements may cause a contamination of the circuit and a malfunctioning of the suspension.
Preliminary operations.
The work area must be kept clean and uncluttered.
The technician must wear clean overalls.
Components being stored during the repair must be protected from dust.
The tooling required for an operation on the suspension system should always be cleaned prior to the operation.
During the operation:
- Before operating on the suspension circuit, proceed to clean the hydraulic components and unions.
IMPERATIVE: Approved cleaner: SODIMAC degreaser.
IMPERATIVE: After a dismantling, immediately blank the hydraulic components and unions with plugs. The plugs should be used for one
operation only.
Any component that has been removed must be plugged and placed in a clean plastic bag.
IMPERATIVE: After a dismantling, any cleaning using compressed air or products is strictly prohibited
. Any LDS fluid that is collected must
not be re-used. Any topping-up must be done with new fluid.
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HYDRAULICS
SUSPENSION SPHERES: GENERAL SPECIFICATION
Each suspension sphere is identified at "a", by one number and two letters, marked in bold characters:
- The number consists of 2 digits, corresponding to the nitrogen pressure inside the suspension sphere.
- The two lettersidentify the location of the suspension sphere.
Other information marked on the suspension sphere:
- Day of the year of manufacture.
- Year of manufacture.
- Time of manufacture.
- Factory no. of the suspension sphere.
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HYDRAULICS
DE-PRESSURISING THE HYDRAULIC SUSPENSION CIRCUITTools.
[1] PROXIAstation: 4165-T
[2] LEXIAstation: 4171-T
De-pressurisation.
NOTE:It is possible to de-pressurise the suspension by individual axle.
Using a diagnostic tool.
Start the engine.
Place the height control in the «LOW»position.
Wait for the vehicle height to reach the position required.
Stop the engine.
Connect the diagnostic tool [1]or [2]to the vehicle's diagnostic socket.
Switch on the ignition.
Carry out a global test.Go into the menu:
- Suspension.
- De-pressurisation.
Follow the instructions displayed on the screen.
Wait for the vehicle's suspension to sink completely.
NOTE:This operation takes around 3 minutes.
Switch off the ignition.
Disconnect the battery.
Without a diagnostic tool.
IMPERATIVE: Any LDS fluid that is collected must not be re-used.
NOTE:Collect the LDSfluid in order to keep the work area clean.
Respect the environment.
Start the engine.
Place the height control in the «LOW»position.
Stop the engine.
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AIR
CONDITIONING
SPECIAL FEATURES: AIR CONDITIONING SYSTEM
Tightening
Requirements for fitting the inlet and outlet brackets:
- Aircon compressor.
- Aircon condenser.
- Aircon pressure reducer valve.
IMPERATIVE: Assembly requirement: the bracket(s) «f» must be against
their interface(s) before the nut(s) are tightened.
IMPERATIVE: Respect the tightening torques.
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