Get Injection Guide for Citroen C6 4 Door First Generation (2005-2012)

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Synopsis.

(1) Fuel consumption information

(2) Ignition injection test warning lamp

(3) Rev counter

(4) Air conditioning ECU

(5) Multifunction screen

(6) Built-in systems interface

(7) Transponder

(8) Automatic gearbox ECU

(9) Fuel pump, filter and pressure regulator (except grande exportation)

(10) Battery

(11) Pressostat

(12) Engine speed sensor

(13) Camshaft position sensor (x2)

(14) Motorised butterfly housing

B1HP1Z9P

83

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Synopsis.

(15) Canister purge electrovalve

(16) Cooling fan

(17) Pencil type ignition coil (x6)

(18) Petrol injector (x6)

(19) Variable timing electrovalve (x2)

(20) Downstream oxygen sensor (x2)

(21) Upstream oxygen sensor (x2)

(22) Engine coolant temperature sensor

(23) Knock sensor (x2)

(24) Power steering pressure sensor

(25) Integrated pressure sensor

(26) Accelerator pedal position sensor

(27) Inlet air temperature sensor

(28) Diagnostic connector

(29) Ignition injection ECU

B1HP1Z9P

84

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Synopsis.

(30) Pulse damper

(31) Sparking plugs (x6)

(32) Fuel tank

(33) Canister reservoir

(34) Discharge valve

(35) Exhaust line

Specifications.

Cylindrical capacity (cc)

: 2946.

Idling speed (rpm) non-adjustable

Cut-off at maximum engine speed (rpm)

: 700 50.

: 6520.

B1HP1ZAD

85

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Fuel circuit

Component

Location

Supplier

Reference

Observations

Recommended fuel

Super unleaded 95 RON or 98 RON

Capacity 65 litres

Composition polyethylene

Electric pump submerged in the tank

Voltage, 12 V

Fuel tank

32

Fuel pump, filter and

pressure regulator

9

MARWALL

Pressure, 3 bars

Flow, 115 à 120 l/h

Regulation pressure, 3,5 bars

Installation under the front LH wing

Electrovalve normally closed

2-way brown connector

Canister reservoir

33

15

PURFLUX

BOSCH

PPGF 30

Canister purge

electrovalve

0 280 142 317

Installation, under the front LH wing

Resistance, 24 ohms

EV 14

0 280 155 613

Group of injectors, 1-2-3, 2-way brown connector

Group of injectors, 4-5-6, 2-way black connector

Marking, yellow in colour

Petrol injectors

Pulse damper

18

30

BOSCH

Injectors, 4 jets

Resistance, 16 ohms

Installation, on the timing cover

Equipped with a SCHRAEDER valve

0 280 161 500

86

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Air circuit

Component

Location

Supplier

Reference

DS-S2 0

Observations

3-way grey connector

Integrated in the inlet manifold

6-way black connector

Fixing, on the inlet manifold

6-way black connector

Supply, 5 volts

Integrated pressure sensor

25

261 260 140

DVE5

Motorised butterfly housing

14

26

BOSCH

0 280 750 041

14 43 33

Accelerator pedal

position sensor

Fixing, on the accelerator

Electrical circuit

ME 7.4.7.

128-way connector

Sequential injection

Ignition injection

ECU

0 261 B00 736

29

24

BOSCH

BITRON

"Flash" type Eprom (reprogrammable eprom)

Installation, in the electronic ECU compartment

2-way blue connector

280 911

Opening of contact at 20 bars

For ECU information

Power steering pressure

sensor

(steering on full lock)

Marking mauve ring seal

Fixing : on the power steering high pressure

pump outlet pipe

87

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Electrical circuit

Component

Location

Supplier

Reference

Observations

2-way grey connector

Inlet air temperature sensor

27

JAEGER

402 084 01

Fixing: on the air filter inlet duct

3-way grey connector

Camshaft position

sensor

14 43 2514 43

25

13

23

ELECTRICFIL

Fixing: on the inlet camshaft bearing cap cover

3-way green connector

Knock sensor

BOSCH

DAV

0 261 231 10

Fixing: on the central part of the «V» of the engine block

Essential to respect tightening torque: 2 0,5 m.daN

2-way green connector

402 243 03

14 43 32

14 43 28

Fixing: on the coolant outlet housing

Tightening torque:

Engine coolant temperature

sensor

22

12

Tighten to: 2 0,2 m.daN

ELECTRICFIL

2-way black connector

Engine speed sensor

Fixing: on the gearbox clutch housing

88

BOSCH ME 7.4.7 INJECTION SYSTEM

Engine: ES9A

Ignition circuit

Component

Location

Supplier

Reference

Observations

Electrode gap: 1 mm

Tightening torque

BOSCH

FGR8MQPE

Sparking plugs

31

Tighten to: 1 0,1 m.daN

Angular tightening: 90°

4-way black connector

Twin-static type ignition

NGK

PFR6E 10

Pencil type ignition

coils

17

21

20

SAGEM

BAC 1

2526140

Exhaust circuit

4-way green connector

Front fixing: on the exhaust manifold

Rear fixing: on the pre-catalyser

4-way blue connector

Upstream oxygen sensor

258 040 232

258 006 185

BOSCH

Front fixing: on the pre-catalyser

Rear fixing: on the pre-catalyser

Tightening torque

Downstream oxygen sensor

Tighten to: 4,7 0,1 m.daN

89

PROHIBITED OPERATIONS: SIEMENS HDI DIRECT INJECTION SYSTEM

Engine: DT17BTED4

Cleaning.

The use of high pressure cleaners is prohibited.

Do not use compressed air.

Fuel supply circuit.

Required fuel: Diesel.

WARNING: Do not use other fuels.

Electrical circuit.

Swapping injection ECUs between two vehicles will render it impossible to start either vehicle.

It is forbidden to supply a diesel injector with 12 volts.

Do not disconnect a diesel injector when the engine is running.

Fuel high pressure pump.

Do not separate the fuel high pressure pump (1) from the following components:

- The sealing ring (a) (no replacement parts).

- The high pressure outlet connector (b) (will cause a malfunction).

- The fuel pressure regulator (c) (no replacement parts).

- The flow electrovalve (d) (no replacement parts).

B1HP23GC

90

PROHIBITED OPERATIONS: SIEMENS HDI DIRECT INJECTION SYSTEM

Engine: DT17BTED4

Diesel injectors.

WARNING: Diesel and ultrasonic cleaners are prohibited.

Do not separate the diesel injector carrier (2) from the following components:

- Diesel injector (g) (no replacement parts).

- The fuel flow actuator (e) (destruction).

B1HP23HC

Do not move the nut (f) (will cause a malfunction).

Do not separate the union (h) from a diesel injector.

It is forbidden to clean the carbon deposits from the diesel injector nozzle.

Central fuel high pressure common injection rail.

Do not separate the fuel high pressure sensor (j) from the central fuel high pressure injection rail (3).

B1HP23JC

91

SAFETY REQUIREMENTS: HDi DIRECT INJECTION SYSTEM

Safety requirements.

After the engine has stopped, wait 30 seconds before any intervention.

Preamble.

NOTE: This waiting time is necessary in order to allow the high pressure

fuel circuit to return to atmospheric pressure.

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.

Cleanliness requirements.

Preliminary operations.

IMPERATIVE: The technician should wear clean overall.

WARNING: Repairs must be carried out by specialised personnel

informed of the safety requirements and of the precautions to be

taken.

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.

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.

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.

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.

92

CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT

Engine: DT17BTED4

Tools.

[1] Ø 10 mm low pressure connector

[2] Ø 8 mm low pressure connector

[3] Pressure gauge for testing boost pressure

[4] Extension

: 4215-T

: 4218-T

: 4073-T

: 4251-T

Kit 4073-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].

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93

CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT

Engine: DT17BTED4

Checks on pressure: static.

Switch on the ignition.

For 3 seconds (normal functioning):

- Fuel supply pressure shown by the pressure gauge [3] = 1.1 0.4 bar.

- Fuel return pressure shown by the pressure gauge [3] = 2 0.5 bar.

Abnormal functioning:

Fuel supply

pressure

Fuel return

pressure

Checks

Between 2 and 3 bar

More than 3 bar

0.8 0.4 bar

Check the condition of the diesel fuel filter

More than 0.8 bar

Check the fuel return circuit (pipe pinched)

Between

Check the fuel suppy circuit :

Less than 0.8 bar

0.3 and 0.5 bar

Booster pump (low pressure), piping

Impossible to start the engine:

- Fuel supply pressure less than 0.3 bar.

B1BP3CRD

94

CHECKS: TURBO PRESSURE

Engine: DT17BTED4

Tools.

[1] Pressure gauge for checking the pressure

: 7073-T.A

: (-).0171.G3

: 4171-T

[2] Tool for checking the inlet air pressure/vacuum

[3] LEXIA diagnostic tool

[4] PROXIA diagnostic 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

95

CHECKS: TURBO PRESSURE

Engine: DT17BTED4

Connect:

- The tool [2a] in place of the turbo pressure sensor (1).

- The turbo pressure sensor (1) on the tool [2b].

- Tool [1] on tool [2], at "b".

Connect the diagnostic tool [3] or [4] to the vehicle's diagnostic socket:

- Put the diagnostic tool [3] or [4] in parameter measures.

Start the engine.

Accelerate to 2500 rpm.

Compare the pressure values read on the diagnostic tool and on the pressure gauge [1].

NOTE: If there is a significant difference in pressure, replace the turbo pressure sensor.

Air/air exhanger.

Check the condition of the following components:

- Air inlet pipe.

- Airoutlet pipe.

- Air /air exchanger.

Air flow from the turbochargers.

NOTE: If an air flow fault is memorised by the diagnostic tool, check the air flow from the turbocharger

incriminated.

Connect the diagnostic tool [3] or [4] to the vehicle's diagnostic socket:

- Put the diagnostic tool [3] or [4] in parameter measures.

Start the engine.

Accelerate to 2500 rpm.

Compare the air flows (mg/stroke) from the two turbochargers.

B1BP3D0C

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CHECKS: TURBO PRESSURE

Engine: DT17BTED4

Significant difference in pressure between the two turbochargers:

- Stop the engine.

- Remove the air filter with the two flowmeters.

- Mark the flowmeters "d" and "c".

- Remove both flowmeters.

Refit:

- Flowmeter "d" in place of flowmeter "c".

- Flowmeter "c" in place of flowmeter "d".

Start the engine.

Accelerate to 2500 rpm.

Compare the air flows (mg/stroke) from the two turbochargers:

- If the difference in air flow has changed turbochargers, replace the flowmeter that is faulty.

- If the difference in air flow is coming from the same turbocharger, check the condition of the air inlet

and outlet pipes of this turbocharger: replace or repair the parts that are faulty.

- If no anomaly is detected on the air inlet and outlet pipes of the turbocharger: replace the turbocharger.

B1HP24TC

97

CHECKING THE AIR SUPPLY CIRCUIT SPECIFICATIONS

Engine: DT17BTED4

(1) Air filter: MECAPLAST

(2) Air/air heat exchanger: BEHR

(3) Front turbocharger: GARETT

(4) Air butterfly housing: MAN HUMEL

(5) Rear turbocharger: GARETT

(6) Flowmeters: SIEMENS VDO

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98

CHECKING THE AIR SUPPLY CIRCUIT

Engine: DT17BTED4

Tool.

[1] Manual pressure-vacuum pump

Checks.

: FACOM DA 16

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.

B1HP26FC

B1HP26DC

"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.

B1HP26EC

99

Injection for Your Citroen C6 4 Door First Generation (2005-2012)

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