2005 CITROEN C6 ESP

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INJECTION
SAFETY REQUIREMENTS: HDi DIRECT INJECTION SYSTEM
Safety requirements.
Preamble.
All interventions on the injection system must be carried out to conform
with the following requirements and regulations:
- Competent health authorities.
- Accident prevention.
- Environmental protection.
WARNING: Repairs must be carried out by specialised personnel
informed of the safety requirements and of the precautions to be
taken.
Safety requirements.
IMPERATIVE: Take into account the very high pressures in the high
pressure fuel circuit (1600 bars), and respect the requirements
below:
- No smoking in proximity to the high pressure circuit when work is being
carried out.
- Avoid working close to flame or sparks.
Engine running:
- Do not work on the high pressure fuel circuit.
- Always stay clear of the trajectory of any possible jet of fuel, which could
cause serious injuries.
- Do not place your hand close to any leak in the high pressure fuel circuit.After the engine has stopped, wait 30 secondsbefore any intervention.
NOTE:This waiting time is necessary in order to allow the high pressure
fuel circuit to return to atmospheric pressure.
Cleanliness requirements.
Preliminary operations.
IMPERATIVE: The technician should wear clean overall.
Before working on the injection system, it may be necessary to
clean the apertures of the following sensitive componen (refer to
corresponding procedures):
- Fuel filter.
- Fuel high pressure pump.
- Fuel high pressure common injection rail.
- Fuel high pressure pipes
- Diesel injector carriers.
IMPERATIVE: After dismantling, immediately block the apertures of
sensitive components with plugs, to avoid the entry of impurities.
Work area:
- The work area must be clean and free of clutter.
- Components being worked on must be protected from dust.
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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engine: DT17BTED4
Tools.
[1] Ø 10 mmlow pressure connector: 4215-T
[2] Ø 8 mmlow pressure connector: 4218-T
[3]Pressure gauge for testing boost pressure: 4073-T Kit 4073-T
[4]Extension: 4251-T
Checks.
IMPERATIVE : Respect the safety and cleanliness requirements specific to high pressure
diesel injection (HDi) engines.
Connect the tool [1]between the booster pump and the fuel filter (white mark on the fuel supply
pipe).
Connect the tool [2]downstream of the diesel injectors, between the high pressure fuel pump and
the fuel filter green mark on the fuel return pipe.
Connect the tool [3]on tool [1]or on tool [2].
WARNING: Any check of pressure downstream of the fuel filter is prohibited.
NOTE:To check the pressures while the vehicle is being driven, insert the extension [4] between
tool [3]and tools [1]or [2].
B1BP3CRD
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INJECTION
CHECKS: TURBO PRESSURE
Engine: DT17BTED4
Tools.
[1]Pressure gauge for checking the pressure: 7073-T.A
[2]Tool for checking the inlet air pressure/vacuum: (-).0171.G3
[3] LEXIAdiagnostic tool: 4171-T
[4] PROXIAdiagnostic tool: 4165-T
Checks.
IMPERATIVE: Respect the safety and cleanliness specific to high pressure diesel injection
engines.
Preliminary operations.
WARNING: Prior to any intervention, check the connections of the turbocharger pressure
regulation actuators.
NOTE:If an air flow fault is memorised by the diagnostic tool, refer to the chapter "Air flow from
the turbochargers".
Turbo pressure sensor.
Remove the engine cover.
Disconnect the connector "a".
Remove the turbo pressure sensor (1).
B1BP3CZC
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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1]Manual pressure-vacuum pump : FACOM DA 16
Checks.
IMPERATIVE: Respect the safety and cleanliness specific to high pressure
diesel injection engines.
Checking the vacuum source (vacuum pump).
Connect the tool [1]on the take-off "a"of the vacuum pump (1).
Start the engine.
The value should be 0,85 ± 0,2 bar.
"Swirl" control electrovalve.
Connect the tool [1]on the vacuum supply "b"of the electrovalve (2).
Start the engine.
The value should be 0,85 ± 0,2 bar.
"Swirl" control diaphragm.
Connect the tool [1]on the "Swirl"control diaphragms (3)at "c".
Apply a vacuum of approx. 0,7 ± 0,2 bar, the "Swirl"butterfly should be fully
open.
Engine: DT17BTED4
B1HP26ECB1HP26DC
B1HP26FC
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CLUTCH
GEARBOX
TRANSMISSION
AM6 GEARBOX CONTROLS: «SHIFT LOCK» FUNCTIONIMPERATIVE: Respect the safety and cleanliness requirements, with reference to the brochure:
«Recommendations-Precautions».
The «shift lock»is a system that locks the gear selection lever in position «P».
Unlocking the «SHIFT LOCK»(normal operation).
Switch on the ignition.
Press the brake pedal and keep it pressed.
Move the gear selection lever out of position «P».
Unlocking the «SHIFT LOCK» (with an operating fault).
Should it be impossible to unlock the «shift lock»with the «Normal operation»method.
The fault may originate from one of the following components:
- «Shift lock».
- Gear lever position switch.
- Automatic gearbox ECU.
- Electrical harness.
- Battery voltage.
Operations to be performed.
Unclip the cover (1).
Unlock the «shift lock»by pressing at "a"with the aid of a screwdriver (screwdriver with a minimum length of
150 mm).
Move the gear selection lever out of position "P".
C5FP0RCD
Engines: ES9A - DT17BTED4
C5FP0RBC
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CLUTCH
GEARBOX
TRANSMISSION
DRAINING, FILLING AND TOPPING UP THE AM6 AUTOMATIC GEARBOX
Tool.
[1] Filling cylinder: (-).0340
Respect the safety and cleanliness requirements.
Draining.
IMPERATIVE: Draining of the gearbox must be done with the oil hot (60°C minimum), in order to
ensure that the impurities in suspension in the oil are eliminated.
NOTE:Drainage is only partial, as the torque converter cannot be drained totally.
Raise the vehicle.
Remove:
- The oil level plug (2)by means of the Torx spanner.
- The drain plug (1)using a hexagonalspanner.
NOTE :Around 3 litresof oil should flow out.
Filling.
Fit the drain plug (1)(with a new seal).
Tighten the plug (1)to: 5 ± 1 mdaN.
Remove:
- The air filter housing.
- The oil filler plug (3).
Use tool [1].
B2CP3WZCB1BP317C
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CLUTCH
GEARBOX
TRANSMISSION
CHECKING THE OIL PRESSURE IN THE AM6 AUTOMATIC GEARBOX
Tools.
[1]Flexible pipe and pressure gauge: 4601- TF1 Toolkit 4601-T
[2]Flexible union: (-).0336.X Toolkit 8010-T
IMPERATIVE: Respect the safety and cleanliness requirements.
Preliminary operations.
Remove the air filter housing.
Move aside the pipe (1).
Remove the screw (2).
Screw in the tool [2]in place of the screw (2).
B2CP45GCB2CP45FC
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CLUTCH
GEARBOX
TRANSMISSION
CHECKING THE OIL PRESSURE IN THE AM6 AUTOMATIC GEARBOX
WARNING: Clean the flexible pipe of the tool [1] each time before use; the different
automatic gearbox oils cannot be intermixed.
Fit the tool [1]on the tool [2].
Perform the following operations:
- Raise the vehicle, wheels hanging.
- Apply the parking brake.
- Start the engine.
- Check the oil pressure.
WARNING: Wait for the gearbox oil to reach a temperature between 58°C and 68°C.
Check the level of oil in the gearbox (see corresponding operation).
NOTE:Check the temperature of the oil using the diagnostic tool in parameter measures.
Gear lever position: D.
Engine speed: Idling.
Principal oil pressure: 3.7 to 4.2 bars.
B1BP3END
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