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

ENGINE SPECIFICATIONS

Engines: ES9A - DT17TED4

Petrol

Diesel

3.0i 24S

2,7 24V

Engine type

XFV

2946

UHZ

2720

Cubic capacity (cc)

Bore/stroke

87/82,6

10,9/1

81x88

Compression ratio

Power ISO or EEC (KW - rpm)

Torque ISO or EEC (m.daN - rpm)

17,3/1

155-6000

29-3750

150-4000

44-1900

22

TIGHTENING TORQUES: POWER UNIT SUSPENSION

Engine: ES9A

Torque reaction rod - lower RH engine support

1

2

3

6

1

0,5

0,1

6,5 0,5

LH engine support

4

5

6

7

3

0,3

6,5 0,6

0,5

5,5 0,5

5

Upper RH engine support

8-9

10

11

6

0,6

4,5 0,5

6

0,5

12

B1BP32YP

23

ENGINE TIGHTENING TORQUES

Engine: ES9A

1

Pencil-type ignition coil

0,8 0,3

0,1

Sparking plugs

Pre-tightening

Angular tightening

1

90° 5°

Valve cover

Pre-tightening

Tightening

2

3

0,5 0,1

1

0,1

Camshaft bearing cap cover

Pre-tightening

Tightening

0,2 0,1

1

2

0,1

0,2

Cylinder head

Pre-tightening

Slackening

4

yes

Tightening

Angular tightening

1,5 0,1

225° 5°

B1BP27DP

24

ENGINE TIGHTENING TORQUES

Engine: ES9A

Exhaust manifold (equipped with a new gasket)

5

6

7

Pre-tightening

Tightening

(order from 1 to 10)

1

3

0,1

0,3

Con rod caps

Pre-tightening

Angular tightening

2

0,2

74° 5°

Engine flywheel

Pre-tightening

Angular tightening

2

0,2

60° 5°

B1JP02LD

25

ENGINE TIGHTENING TORQUES

Engine: ES9A

8

Crankshaft bearing

NOTE: Maximum length under heads for M11 = 131,5 mm.

NOTE: Maximum length under heads for M8 = 119 mm.

Perform the following operations:

- Brush the screw threads.

- Refit the screws having first pre-coated them with «MOLYKOTE G RAPID PLUS» grease

on the threads and under heads.

Check the presence of the eight centring pins

Pre-tighten the screws M11 (sequence from 1 to 8)

Pre-tighten the screws M8 (sequence from A to H)

Tighten the screws M6 (sequence from a to 1)

Slacken the screws screws M11 and M8

3

1

0,3

0,1

Yes

Proceeding screw by screw

Tighten the screws M11 (sequence from 1 to 8)

Angular tightening

Tighten the screws M8 (sequence from A to H)

Angular tightening

3

180°

0,3

0,1

1

180°

B1BP2D3D

26

ENGINE TIGHTENING TORQUES

Engine: ES9A

Sump

9

Pre-tightening (sequence from 1 to 20)

Tightening (sequence from 1 to 20)

0,5 0,1

0,8 0,1

Crankshaft pinion

Pre-tightening

Angular tightening

10

11

12

4

0,4

80°

Crankshaft pulley

2,5 0,2

Inlet distributor (with new seals)

Pre-tightening

Tightening

0,4 0,1

0,8 0,1

Air inlet manifold

Pre-tightening

Tightening

13

0,4 0,1

0,8 0,1

B1BP1GZD

27

ENGINE TIGHTENING TORQUES

Engine: ES9A

Camshaft hubs

Pre-tightening

Angular tightening

14

2

0,2

57°

1,5 0,1

15

16

Cap

Guide roller

8

2

1

0,8

Camshaft pulley

Pre-tightening

Angular tightening

17

0,2

115°

0,1

18

20

21

Camshaft pulleys

B1BP2D3D

Timing belt tensioner roller

Plate for the dynamic tensioner roller

2,5 0,2

Coolant pump

Pre-tightening

Tightening

22

19

0,5 0,1

0,8 0,1

Oil pump

Pre-tightening

Tightening

0,5 0,1

0,8 0,1

B1FP04KC

28

TIGHTENING TORQUES: POWER UNIT SUSPENSION

Engine: DT17BTED4

RH engine support

1

2

3

4

5

Screws

Nut

8,2 1,25

0,6

6

2,8 0,4

6,5 0,6

Screws

6

0,6

Front piloted torque reaction rods

6

7

8

9

Screws

6

0,6

B1BP3EPD

4,3 0,4

0,6

6

B1BP3EQD

29

TIGHTENING TORQUES: POWER UNIT SUSPENSION

Engine: DT17BTED4

Rear piloted torque reaction rods

10

11

12

13

Screws

6

0,6

LH gearbox support

14

15

16

17

Screws

5,5 0,8

0,6

5,5 0,8

B1BP3ERD

6

B2CP45CD

30

TIGHTENING TORQUES: POWER UNIT SUSPENSION

Engine: DT17BTED4

Gearbox impact absorber

18

Screws

4

0,6

B2CP45DC

Driveshaft bearing

19

Screws

6

0,6

B2CP45EC

31

ADJUSTMENT OF PILOTED TORQUE REACTION ROD

Engine: DT17BTED4

IMPERATIVE: Respect the safety and cleanliness requirements.

IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure

Diesel injection (HDi) engines.

Additional operations.

NOTE: The piloted torque reaction rods have to be adjusted in the event of removing the fixing

yoke of the front piloted torque reaction rod (1).

B1BP3E9D

WARNING: Tighten the supports of the engine/gearbox assembly prior to adjusting the rods.

Fit the supports (2) and (3), tighten the fixings

Fit the tie-rod (5), tighten the fixings

:

: 6,5 0,6.

Fit the rear piloted torque reaction rod (4).

Fit the front piloted torque reaction rod (1).

Tighten the fixings of the rear piloted torque reaction rod (4)

: 6,5 0,6.

Adjustment.

Position the lower edge "a" of the yoke (7) to 5 mm from the lower edge "b" of the crossmember (6).

Tighten the fixings (8)

Tighten the fixings of the front piloted torque reaction rod

: 6 0,6.

B1BP3EBD

32

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Cylinder head

1

2

3

Butterfly housing

Inlet valve cover screws (*)

Inlet valve cover studs (*)

0,9 0,2

Coolant outlet housing

Cylinder heads

Pre-tightening

Tightening

Angular tightening

2

4

8

0,2

0,5

4

180 5°

5

6

EGR (exhaust gas recycling) electrovalve

0,9 0,2

Exhaust manifold nuts

Exhaust manifold studs

2,3 0,3

1,3 0,2

Turbocharger nuts

Turbocharger studs

2,3 0,3

1,3 0,2

7

8

9

Pre-catalysers

Vacuum pump

2

0,1

2,3 0,3

(*) Respect the sequence of tightening.

B1DP1LZD

33

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Order of tightening of screws (2)

(2) Camshaft bearing cover screws (from 1 to 13)

(2) Camshaft bearing cover studs (from 1 to 13)

B1DP1M1C

Order of tightening of bolts (4) (from 1 to 8)

(4) Cylinder head bolts

B1DP1M2C

34

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Cylinder block

11

12

Coolant pump

Con rod screws

Pre-tightening

Angular pre-tightening

Angular tightening

0,9 0,2

0,1

45 5°

2

Starter gearwheel carrier

Pre-tightening

Angular pre-tightening

Angular tightening

5

0,5

13

45 5°

14

15

Lower engine block screw (*)

0,9 0,2

2,3 0,3

Bearing cap fixing screws (*)

Pre-tightening

Tightening

6

0,6

16

14,5 1,4

90 20°

Angular tightening

Crankshaft bearing cap cover

Pre-tightening

Tightening

1,5 0,1

3,3 0,9

47 20°

17

18

Angular tightening

Accessories drive pulley

2,5 0,2

(*) Respect the sequence of tightening.

B1DP1M3P

35

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Order of tightening for screws (14) and (15)

(14) Lower engine block screw (screw M6)

(15) Lower engine block screw (screw M8)

Method of tightening:

- Tighten the 10 screws (15) (from 1 to 10) to

- Tighten the 8 screws (14) (from 1 to 18) to

: 2,3 0,3

: 0,9 0,1

B1DP1M4D

Order of tightening for screws (16) and (17)

(16) Bearing cap fixing screw (screw M9)

(17) Crankshaft bearing cap cover screw (screw M6)

Method of tightening:

- Pre-tighten the 16 screws (16) (from 1 to 16) to

- Pre-tighten the 8 screws (17) (from 17 to 24) to

- Pre-tighten the 16 screws (16) (from 1 to 16) to

- Tighten the screws (16) (from 1 to 16)

- Tighten the 8 screws (17) (from 17 to 24) to

- Tighten the screws (17) (from 17 to 24)

: 6 0,6

: 1,5 0,1

: 14,5

: 90° 20°

: 3,3 0,3

: 47° 20°

2

B1DP1M5D

36

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Lubrication

19

20

21

22

23

24

25

26

27

28

29

30

31

Oil filter cover

2,3 0,3

0,9 0,2

Oil filter support

Oil/coolant heat exchanger

Oil pressure switch

Oil pump assembly

Oil gauge

1,3 0,2

0,9 0,2

2,3 0,3

2,7 0,5

0,9 0,2

2,3 0,3

0,9 0,1

Oil level sensor

Oil sump

Drain plug

Oil suction strainer

Piston skirt spray jets

Turbocharger lubrication pipe

1

0,1

0,9 0,2

1,3 0,3

B1DP1M6P

37

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Valve timing

Camshaft pulley hub screw

Tightening

Angular tightening

32

33

34

35

36

8

0,8

90° 5°

Camshaft pulley screw

2,3 0,3

Camshaft bearing caps (*)

Tightening

Pre-tightening

0,5 0,1

0,9 0,1

Tensioner roller for the fuel high pressure pump drive belt

2,5 0,2

Fuel high pressure pump drive pulley

Tightening

Angular tightening

8

0,8

90° 5°

0,9 0,1

4,5 0,3

37

38

Camshaft timing chain tensioner

Timing belt guide roller

Timing pinion on crankshaft

Tightening

Angular tightening

39

40

10

90° 5°

1

Timing belt tensioner roller

2,6 0,2

(*) Respect the sequence of tightening.

B1EP1JCD

38

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

IMPERATIVE: The camshaft bearing caps are marked at "a" with a letter on the front cylinder

head and with a number on the rear cylinder head.

Refit the camshaft bearing caps according to the plan below:

Refit: The camshaft bearing caps (34) 9, 8, 7, 6, 4, 3, 2, D, C, B, A, J, G and F ; the screws (41)

Tightening of the screws (41):

Pre-tighten the screws (41) of the camshaft bearing caps (34) by hand in the following sequence

9, 8, 7, 6, 4, 3, 2, D, C, B, A, J, G and F.

Pre-tighten the screws (41) of the camshaft bearing caps (34) to 0,5 0,1 m.daN in the following

sequence 9, 8, 7, 6, 4, 3, 2, D, C, B, A, J, G and F.

Tighten the screws (41) of the camshaft bearing caps (34) to 1 0,1 m.daN in the following

sequence 9, 8, 7, 6, 4, 3, 2, D, C, B, A, J, G and F.

Apply sealing product LOCTITE 518 on the camshaft bearing caps (15) K, 5, E and J (see procedure:

remove/refit camshaft).

Refit: the camshaft bearing caps K, 5, E and J.

Tightening of the screws (41):

- Pre-tighten the screws (41) of the camshaft bearing caps (34) by hand in the following sequence

K, 5, E and J.

- Pre-tighten the screws (41) of the camshaft bearing caps (34) to 0,5 0,1 m.daN in the following

sequence K, 5, E and J.

- Tighten the screws (41) of the camshaft bearing caps (34) to 1 0,1 m.daN in the following sequence

K, 5, E and J.

B1DP1MQD

39

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Injection circuit

Diesel fuel/cooolant exchanger

Diesel injection pump on support

Diesel injection pump pinion

42

43

44

45

2,2 0,3

2,3 0,3

5

0,2

Diesel injector fixing flange screw

0,9 0,1

Union on diesel injector

Pre-tightening

Tightening

46

47

1,5 0,3

2,3 0,3

Fuel high pressure common injection rail on engine block

Pre-tightening

Tightening

1,5 0,3

3

0,3

Unions on fuel high pressure common injection rail

Pre-tightening

Tightening

48

49

50

1,5 0,3

0,3

2,3 0,3

3

Fuel filter support

Union on diesel fuel high pressure pump

Pre-tightening

Tightening

1,5 0,3

3

0,3

Fuel high pressure common injection intermediate rail

Pre-tightening

Tightening

51

1,5 0,3

0,3

3

B1HP246D

40

ENGINE TIGHTENING TORQUES

Engine: DT17BTED4

Accessories

Screw M8 for automatic tensioner roller (accessories drive belt)

Screw M10 for dynamic tensioner roller (accessories drive belt)

52

2,2 0,3

4,7 0,7

53

54

55

56

57

58

59

60

Guide roller

4,7 0,7

2,3 0,3

Accessories support

Multifunction support

Power steering pump pulley

Power steering pump

Alternator screw

5

0,3

Alternator power circuit

Aircon compressor screw

1,4 0,2

2,3 0,3

B1BP3C0D

41

SPECIAL FEATURES: CYLINDER HEAD TIGHTENING

Engine: ES9A

Cleaning to be carried out just prior to refitting the cylinder head

WARNING: Clean the contact faces with the approved CITROËN cleaning product.

Do not use abrasives or cutting tools on the contact faces.

The contact faces must not bear any traces of impact or scratching.

Insert a tap in the threads of the holes in the cylinder block receiving the cylinder head bolts.

Brush the threads of the cylinder head bolts.

Oil the threads and under the heads of the bolts, using MOLYKOTE G RAPID PLUS.

Front cylinder head

Engine

ES9A

Tightening (from 1 to 8)

X = MAX. re-usable length

149,5 mm

Pre-tightening

Slackening

Tightening

2

0,2

yes

1,5 0,1

225° 5°

Angular tightening

B1DP1KEC

Rear cylinder head

IMPERATIVE: Take new screws if their length is greater than X mm.

NOTE: Tightening of the cylinder head after a repair is prohibited.

B1DP1KHC

42

SPECIAL FEATURES: CYLINDER HEAD TIGHTENING

Engine: DT17BTED4

Cleaning to be carried out just prior to refitting the cylinder head

WARNING: Clean the contact faces with the approved CITROËN cleaning product.

Do not use abrasives or cutting tools on the contact faces.

The contact faces must not bear any traces of impact or scratching.

Insert a tap in the threads of the holes in the cylinder block receiving the cylinder head bolts.

Brush the threads of the cylinder head bolts.

Oil the threads and under the heads of the bolts, using MOLYKOTE G RAPID PLUS.

Front cylinder head

Engine

Tightening (from 1 to 8)

NOT re-usable

New screws

Pre-tightening

Tightening

2

4

8

0,2

0,4

0,8

DT17BTED4

Angular tightening

180° 5°

B1DP1MDD

Rear cylinder head

NOTA : Tightening of the cylinder head after a repair is prohibited.

B1DP1MLC

43

BELT TENSION/SEEM UNITS CORRESPONDENCE TABLE

Tools

4122-T (C.TRONIC.105.5) !

! 4099-T (C.TRONIC.105)

44

AUXILIARY EQUIPMENT DRIVE BELT

Petrol

Diesel

3.0i 24S

XFV

2,7 24V

Engine type

C6

UHZ

X

See pages:

47 to 48

49

45

AUXILIARY EQUIPMENT DRIVE BELT

Engines : all types Petrol and Diesel

Tools.

Belt tension measuring instrument

: 4122-T.(C.TRONIC 105.5).

WARNING: If using tool 4099-T (C.TRONIC 105).

Essential.

Before refitting the auxiliary equipment drive belt, check that:

- 1 / The roller(s) rotate freely (no play or stiffness).

- 2 / The belt is correctly engaged in the grooves of the various pulleys.

46

AUXILIARY EQUIPMENT DRIVE BELT

Engine: ES9A

Tools.

[1] Ratchet spanner S.171 FACOM (1/2 square)

[2] Reduction box S.230 FACOM (1/2 - 3/8)

: S 171

: S 230

Removing.

Remove the engine cover.

Pivot the tensioner roller bracket (1) clockwise, until it locks,

using tools [1] and [2] at «a».

Remove the auxiliary equipment drive belt.

ESSENTIAL: Check that the guide rollers are turning freely

(no play and no tightness).

Refitting.

Refit the auxiliary equipment drive belt.

Respect the following order of assembly:

- The crankshaft pulley (2).

- The tensioner roller (3).

Release the tensioner roller bracket (1), by turning it anti-clockwise,

using tools [1] and [2].

ESSENTIAL: Make sure that the belt is correctly positioned in

the grooves of the various pulleys.

B1BP27FC

B1BP27EC

47

AUXILIARY EQUIPMENT DRIVE BELT

Engine: ES9A

Tool.

[1] 2 mm diameter peg

: (-).0188-Q1

Removing.

Remove:

- The under-engine sound-deadening.

- The front RH wheel.

- The RH splash-shield.

- The air duct (linking the air distributor heat exchanger).

Compress the dynamic tensioner roller (1) to free the pegging hole at "a".

Peg the dynamic tensioner roller at "a", using tool [1].

WARNING: Do not compress the dynamic tensioner roller completely (risk

of damage).

WARNING: Mark the direction of fitting of the auxiliary equipment drive belt

if for re-use.

Disengage the auxiliary equipment drive belt from the various pulleys, commencing

at "b" (coolant pump pulley).

Remove:

- The screws (2) and (4).

- The dynamic tensioner roller (1).

- The auxiliary equipment drive belt (3).

ESSENTIAL: Check that the tensioner and guide rollers as well as the

coolant pump can turn freely (without play, without tight spots and without

projections of grease).

B1BP3BSD

48

AUXILIARY EQUIPMENT DRIVE BELT

Engine: DT17BTED4

Refitting.

WARNING: If re-using the auxiliary equipment drive belt, refit it respecting its direction of

fitting.

Fit the auxiliary equipment drive belt.

ESSENTIAL: Make sure that the auxiliaries drive belt is correctly positioned in the

grooves of the various pulleys.

Refit:

- The dynamic tensioner roller (1) by engaging the belt on the roller.

- The screws (2) and (4).

Tighten:

- Screw (2)

: 5 0,5.

- Screw (4)

Compress the dynamic tensioner roller.

: 2,3 0,2.

Remove tool [1].

ESSENTIAL: Make sure that the auxiliaries drive belt is correctly positioned in the

grooves of the various pulleys.

Refit:

- The air duct (linking the air distributor heat exchanger).

- The RH splash-shield.

- The front RH wheel.

- The under-engine sound-deadening.

B1BP3BVC

49

CHECKING AND SETTING THE VALVE TIMING

Petrol

Diesel

3.0i 24BS

2,7 24V

Engine type

C6

XFV

X

UHZ

X

See pages:

51 to 57

58 to 67

50

CHECKING THE VALVE TIMING

Engine: ES9A

Tools.

[1] Camshaft setting pegs

[2] Crankshaft setting peg

[3] Fuel pressure take-off union

[4] Belt retaining pin

[5] Exhaust camshaft hubs immobilising tool

[6] Inlet camshaft hubs immobilising tool

[7] SEEM belt tension measuring equipment

: (-).0187.B

: (-).0187.A

: 4192-T

: (-).0187.J

: (-).0187.F

: FACOM D12

: 4122-T

Remove components as necessary for this operation.

Remove the auxiliaries drive belt (see corresponding operation).

Checking the valve timing.

Remove:

- The power steering pulley.

- The roller/dynamic tensioner assembly (11).

- The crankshaft pulley (12).

- The upper timing covers (9) and (10).

- The lower timing cover (13).

B1BP2BKC

51

CHECKING THE VALVE TIMING

Engine: ES9A

Checking the valve timing (continued).

Peg the crankshaft, using tool [1].

Check that the tool [2] engages without effort in the cylinder heads at the camshaft pulleys.

Remove the tools [1] and [2].

Refit:

B1EP08TC

- The lower timing cover (13).

- The upper timing covers (9) and (10).

- The crankshaft pulley (12).

- The roller/dynamic tensioner assembly (11).

- The power steering pulley.

Complete the refitting of components.

Initialise the ignition injection ECU.

B1EP15UD

52

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing.

Remove the components as necessary for the operation.

Remove the screws (19) and the plate (20).

Peg the crankshaft, using tool [2].

NOTE: Damp the rotation of the camshafts (15) and (17), using tool [6].

Untighten the camshaft pulley screws (15) and (17).

NOTE: Damp the rotation of the camshafts (14) and (18), using tool [5].

Untighten the camshaft pulley screws (14) and (18).

NOTE: Lubricate the tools [1], with grease G6 (TOTAL MULTIS).

Peg the camshafts, using tools [1], [5] and [6].

Remove the screw (21) of the panel (25).

Untighten the nut (23) of the tensioner roller (24).

Untighten the screws (22) of the panel (25).

Remove the guide roller (16).

WARNING: Mark the direction of fitting of the timing belt, in case the belt is to be reused.

Remove the timing belt.

B1EP15VD

53

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing (continued).

Refitting.

Check that the camshafts and the crankshaft are correctly pegged.

Check that the rollers and the coolant pump pulley are turning freely (no tightness).

Loosen the camshaft pulley screws by a 1/4 turn.

Make sure that the pulleys are turning freely on the camshaft hub.

Turn the camshaft pulleys in a clockwise direction, to end of slots.

WARNING: Respect the direction of fitting of the belt: Facing the timing, the inscriptions on

the belt should be readable the correct way up.

B1EP15VD

Fit the timing belt on the crankshaft pinion.

Position the tool [6].

Position the timing belt in the following sequence (belt well tensioned):

- The roller (26), the pulley (18), the pulley (17).

WARNING: Keep the timing belt well tensioned.

- Refit the guide roller (16), tighten to 8 0,8 m.daN.

Position the timing in the following sequence:

- The camshaft pulleys (15) and (14), the tensioner roller (24), the coolant pump pulley and the

guide roller (27).

NOTE: When positioning the belt on the camshaft pulleys, turn these clockwise so as to engage the

next tooth. The angular displacement of the pulleys should not be more than the equivalent of one

tooth.

B1BP2BLC

54

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Setting the valve timing (continued).

Adjusting the timing belt tension.

Preliminary operations.

Pivot the plate (25) of the tensioner roller (24), using a spanner (type FACOM S.161).

Engage the screw (21) on the plate (25).

Tighten the screws (21) and (22), tighten to 2,5 0,1 m.daN.

Act on the tensioner roller (24) so as to tension the belt, using a spanner (type FACOM R 161).

Adjust the belt tension, using tool [7]:

- Measuring equipment SEEM CTI 901.1

- Measuring equipment SEEM CTG 105.5

- Measuring equipment SEEM CTG 105.6

: 440 15 SEEM units.

: 83 2 SEEM units.

: 88 2 SEEM units.

WARNING: Never go beyond the tensioner limit.

NOTE: The check of the belt tension is done on the longest belt section between the crankshaft

pinion and the guide roller.

B1EP15WC

55

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Tighten the nut (23) of the tensioner roller (24), tighten to 1 0,1 m.daN.

Check that the exhaust camshaft pulley screws are not at the end of slots (by loosening one screw).

WARNING: Otherwise, restart the operation for positioning the timing belt.

Tighten at least 2 screws per exhaust camshaft pulley to 1 0,1 m.daN.

Remove the tools [1], [2] and [4].

B1EP15WC

Rotate the crankshaft 2 turns in a clockwise direction.

IMPERATIVE: Never turn it back.

Peg the crankshaft, using tool [2].

Peg the camshaft pulleys, using tool [1].

Slacken the nut (23) of the tensioner roller (24).

B1EP15XC

56

CHECKING AND SETTING THE VALVE TIMING

Engine: ES9A

Tensioning the timing belt.

Act on the tensioner roller (24) so as to align the marks «c» and «d», without detensioning the timing belt

(failing this, restart the operation of adjusting the belt tension).

Hold the tensioner roller (24).

Tighten the nut (23), tighten to 1 0,1 m.daN.

Check the position of the tensioner roller (the alignment of the marks «c» and «d» should be correct).

Remove the tools [1], [2] and [4].

Turn the crankshaft 2 rotations clockwise.

IMPERATIVE: Never turn it back.

Peg the crankshaft, using tool [2].

Check the position of the tensioner roller (the alignment of the marks «c» and «d» should be correct).

Peg the camshaft pulleys, using tool [1].

If the peg [1] goes in: Loosen the exhaust camshaft pulley screws by 45°.

If the peg [1] does not go in: Slacken the exhaust camshaft pulley screws by 45°.

Bring the exhaust camshaft hub to the pegging position (5), using tool [5].

WARNING: Check that the exhaust camshaft pulleys are not at the end of slots. Otherwise, restart

the operation to position the timing belt.

Tighten the exhaust camshaft pulley screws to 1 0,1 m.daN.

Remove tools [1] and [2].

Complete the refitting.

Initialise the injection ECU (see corresponding operation).

B1EP15XC

57

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Tools.

[1] Set of plugs

[2] Flywheel setting peg (double flywheel)

[3] Camshaft setting pegs

: (-).0188-T

: (-).0195.K

: (-).0195.H

Toolkit 0188-T

Checks.

IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure

Diesel injection (HDi) engines.

Remove the engine cover.

Disconnect the battery negative terminal.

Raise and support the front of the vehicle.

Remove:

- The under-engine sound-deadening.

- The front RH wheel.

- The front RH splash-shield (see corresponding operation).

Remove:

- The air duct between the air/air exchanger and the air inlet housing (4).

- The air inlet housing (4).

Uncouple, plug and move aside the pipes (2) and (3), using tools [1].

Unclip and move aside the electrical harness.

Remove the venting chamber fixing (1).

Move aside the venting chamber (1).

B1BP3BXD

58

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Remove:

- The auxiliary drive belt (5) (see corresponding operation).

- The upper timing covers (6).

B1EP1J9D

Position the camshaft pegging holes "a" and "b" at "c" and "d", 30° 5° forward of their pegging

holes "e" and "f".

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

B1EP1JAD

59

CHECKING THE VALVE TIMING

Engine: DT17BTED4

Remove the plug from the pegging hole on the cylinder block.

NOTE: Removing the particle filter and catalytic converter flexible pipe assembly facilitates removal

of the plug from the pegging hole and the positioning of the tool [2].

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

Peg the crankshaft, using tool [2].

Peg the camshafts, using tools [3].

IMPERATIVE: If it is not possible to peg the camshafts, restart the setting of the valve timing

(see corresponding operation).

B1DP1MOC

Remove the tools [2] and [3].

Refit the plug on the pegging hole on the cylinder block.

Refit:

- The upper timing covers (6).

- The auxiliary drive belt (5) (see corresponding operation).

Reclip the electrical harness.

Fit the venting chamber (1).

Remove the tools [1].

Reposition and connect the pipes (2) and (3).

Complete the refitting.

B1EP1JBD

60

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Tools.

[1] Kit of plugs

[2] Flywheel setting peg (double damping flywheel)

[3] Camshaft setting pegs

[4] Belt compressure spring

[5] Coolant pump pulley peg

[6] Lifting bracket

: (-).0188-T

: (-).0195.K Toolkit 0188-T

: (-).0195.H Toolkit 0188-T

: (-).0188.K

: (-).0195.C

: (-).0195.N

IMPERATIVE: Respect the safety and cleanliness requirements.

WARNING: Before disconnectng the battery, partially open the door windows.

Removing.

IMPERATIVE: Respect the safety and cleanliness requirements specific to High pressure Diesel injection (HDi) engines.

Remove the engine cover.

Disconnect the negative terminal of the battery.

Raise and support the front of the vehicle.

Remove:

- The under-engine sound-deadening.

- The front RH wheel.

- The front RH splash-shield (see corresponding operation).

61

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Remove:

- The air duct between the air/air exchanger and the air inlet housing (6).

- The air inlet housing (6).

Uncouple, plug and move aside the pipes (2) and (3) using tool [1].

Detach and move aside the electrical harness.

Remove:

- The header tank fixing (1).

- The "Swirl" electrovalve fixings (7).

Move aside:

- The "Swirl" electrovalve (7) with its support.

- The header tank (1).

B1BP3C2D

Position the lifting bracket [6] at "a".

Support the engine by means of a workshop hoist.

Remove:

- The upper RH engine support tie bar, and the upper RH engine support (5).

- The engine support (4) on the chassis member.

- The accessories drive belt (8) (see corresponding operation).

- The engine support (12), the crankshaft pulley (9), the upper timing covers (11).

- The lower timing cover (10).

Line up one of the three holes "b" on the pulley with the hole on the body of the coolant pump.

Immobilise the coolant pump pulley, using tool [6].

Remove the coolant pump pulley (13).

B1EP1JDD

62

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Position the camshaft pegging holes "c" and "e" at "d" and "f", 30° 5° in front of the pegging

holes "h" and "g".

NOTE: Turn the crankshaft in the normal direction of rotation, by means of the crankshaft pinion

screw.

Remove the plug from the pegging hole on the cylinder block.

B1EP1JED

NOTE: Turn the engine by means of the crankshaft pinion screw to bring it to the pegging position

(following the arrow).

Peg the crankshaft using the tool [2].

NOTE: Removing the particle filter and catalytic converter flexible pipe assembly facilitates the

removal of the plug from the pegging hole and the positioning of tool [2].

B1DP1MOC

63

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Peg the camshafts, using tools [3] at "h" and "g".

Slacken:

- The 3 screws (15) of the camshaft pulley (23).

- The 3 screws (17) of the camshaft pulley (18).

- The screw (21) of the tensioner roller (20).

Remove the timing belt (22).

Checks.

IMPERATIVE: Just before refitting, carry out the checks below.

B1EP1JFD

Check that the rollers (16), (20) and (19) and the coolant pump (14) can turn freely (without play

and without any tight spot).

Check that there are no signs of oil leaks (from the crankshaft and camshaft seals).

Check that there are no signs of coolant leaks (from the coolant pump).

Replace components that are faulty (if necessary).

Refitting.

Reposition the timimg belt on the crankshaft pinion (24).

Hold the timing belt (22) in position, using tool [4].

Tighten the screws (15) and (17) by hand.

Turn the camshaft pulleys (23) and (18) clockwise, to place them at the end of slots.

B1EP1JGC

64

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Reposition the timimg belt, strip «j» well tensioned, in the following order:

- Guide roller (19).

- Camshaft pulley (18).

- Guide roller (16).

- Camshaft pulley (23).

- Tensioner roller (20).

NOTE: If necessary, turn the pulleys (23) and (18) slightly anti-clockwise (the offset must not be

more than one tooth).

B1EP1JHD

Remove the tool [4].

Using a hexagonal spanner, rotate the tensioner roller (20) anti-clockwise.

Position the index "l" facing the notch "k".

Tighten the screw (21)

: 2,5 0,2.

Remove the screws (15) and (17) from the pulleys (23) and (18) in order to check that the screws

(15) and (17) are not at the end of slots.

IMPERATIVE: If the screws (15) and (17) are at the end of slots, restart the operations to refit

the timing belt.

B1EP1JJC

65

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Tighten the screws (15) and (17)

: 2,2 0,2.

Remove tools [2] and [3].

Rotate the crankshaft 8 times in the normal direction of rotation.

Fit the tool [2].

Peg the camshafts using tools [3], at "h" and "g".

NOTE: If it is not possible to refit the tools [3], slacken the screws (15) and/or (17) of the camshafts

and drive the camshafts by means of their central screws (25) and/or (26).

B1EP1JHD

Peg the camshafts using tools [3], at "h" and "g".

Tighten the screws (15) and (17)

Remove tools [2] and [3].

: 2,2 0,2.

Rotate the crankshaft 8 times in the normal direction of rotation.

Fit the tool [2].

Fit the tools [3], at "h" and "g".

Check that the index "l" of the tensioner roller (20) is facing the notch "k".

B1EP1JJC

66

CHECKING AND SETTING THE VALVE TIMING

Engine: DT17BTED4

Remove tools [2] and [3].

Refit: The lower timing cover (10), the upper timing covers (11), the crankshaft pulley (9), the engine

support (12), the coolant pump pulley (13), the accessories drive belt (8) (see corresponding operation),

the engine support (4) on the chassis member, the upper RH engine support (5) and the upper RH

engine support tie bar.

Take away the workshop hoist.

B1EP1JHD

Remove the tool [6].

Refit the "Swirl" electrovalve (7) with its support, the header tank (1), the electrical harness.

Remove the tool [1].

Reposition and couple the pipes (3) and (2).

Complete the refitting.

B1EP1JJC

67

EXHAUST SPECIFICATIONS

Engine: ES9A

1

2

Upstream oxygen sensor (rear)

Downstream oxygen sensor (rear)

Downstream oxygen (front)

Upstream oxygen sensor (front)

Precatalyser (rear)

4,7 0,5

3,5 0,5

3

4

5

6

Precatalyser (front)

Resonator

7

8

Catalytic converter

9

Rear silencer

10

Clips

2,6 0,3

B1JP08AD

68

EXHAUST SPECIFICATIONS

Engine: ES9A

Repair.

Respect the precautions to be taken prior to any operation:

- The front flexible pipe must be protected against any external mechanical damage.

- The front flexible pipe must not come into contact with corrosive products.

- Do not deform the front flexible pipe more than 20° angular (X), 20 mm axial, 25 mm shearing

(Y) (front flexible pipe removed).

- Do not deform the front flexible pipe more than 3° angular (X), 0 mm axial, 3 mm shearing (Y)

(front flexible pipe in place).

WARNING: Non-respect of these precautions will shorten the life of the flexible pipe.

It is therefore imperative to disconnect or remove the exhaust line for any operations

necessitating lifting of the engine-gearbox.

B1JP02JC

69

EXHAUST SPECIFICATIONS

Engine: DT17BTED4

B1JP07QD

(1)

Clip

(2)

(3)

(4)

Exhaust

silencer

(5)

Rear

precatalyser

(6)

Front

precatalyser

Engine versions

UHZ

Particle filter

Intermediate pipe

TR PSA F016

TR PSA K330

PSA 4234

TR PSA K311

TR PSA K310

70

EXHAUST SPECIFICATIONS

Engine: DT17BTED4

Repair.

Respect the precautions to be taken prior to any operation:

- The front flexible pipe must be protected against any external mechanical damage.

- The front flexible pipe must not come into contact with corrosive products.

- Do not deform the front flexible pipe more than 20° angular (X), 20 mm axial, 25 mm shearing

(Y) (front flexible pipe removed).

- Do not deform the front flexible pipe more than 3° angular (X), 0 mm axial, 3 mm shearing (Y)

(front flexible pipe in place).

WARNING: Non-respect of these precautions will shorten the life of the flexible pipe.

It is therefore imperative to disconnect or remove the exhaust line for any operations

necessitating lifting of the engine-gearbox.

B1JP02JC

71

TIGHTENING TORQUES - EXHAUST LINE

Engine: DT17BTED4

1

2

3

4

5

6

Clip

2,6 0,4

0,8 0,1

Particle filter hangers

Intermediate pipe hangers

Silencer hangers

Rear precatalyser screw

Front precatalyser screw

2

0,3

B1JP07ZD

72

COOLING SYSTEM SPECIFICATIONS

Engines: ES9A - DTE17BTED4

3.0i 24S

XFV

2,7 24V

UHZ

Engine type

11,3

13,2

Capacity

Radiator surface

Pressurisation

Opening of thermostatic regulator

Cooling fan

27 dm²

1,4 bar

78°C

1 x 600 W

FRIC function

105°C

83°C

2 x 150W

1st speed

97°C or aircon in operation

101°C or 17 bars in the aircon circuit

105° or 30 bars in the aircon circuit

115°C or 30 bars in the aircon circuit

2nd speed

3rd speed

Air con cut-off

Alert

118°C

Post cooling

6 minutes

Marking

11

6

Information

Level of coolant

Resistance

Black

Temperature of coolant

Thermostat

Temperature, diesel injection, alert, aircon

Sensor

Thermostat

Grey

Colour of connector

Tightening (m.daN)

Blue

1,7 0,4

73

COOLING SYSTEM SPECIFICATIONS

Engine: ES9A

(1) Heater matrix

(2) Bleed screw

(3) Coolant outlet housing

(4) Coolant inlet housing

(5) Thermostat

(6) Coolant temperature sensor

(7) Coolant/oil heat exchanger (engine)

(8) Cooling radiator drain plug

(9) Coolant/oil heat exchanger (automatic gearbox)

(10) Engine cooling radiator

(11) Coolant level sensor

(12) Header tank

(13) Venting chamber

B1GP0CXP

74

COOLING SYSTEM SPECIFICATIONS

Engine: DT17BTED4

(1) Header tank

(2) Coolant outlet housing

(3) Coolant/oil heat exchanger

(4) Coolant/EGR heat exchanger (rear cylinder bank)

(5) Bleed screw

(6) Heater matrix

(7) Additional heating unit

(8) Engine cooling radiator

(9) Engine cooling radiator drain tap

(10) Coolant/EGR heat exchanger (front cylinder bank)

B1GP0D4P

75

CHECKING THE OIL PRESSURE

Engine

ES9A

DT17BTED4

Temperature (°C)

Pressure (bars)

Rpm

80°C

2

900

5

Pressure (bars)

Rpm

1 to 4

2500

3000

Pressure (bars)

Rpm

2279-T.Bis

4103-T

X

(-).1503.K

4202-T

X

NOTE: Oil pressure should be checked with the engine cold, after checking the oil level.

76

VALVE CLEARANCES

● Inlet

Exhaust

All types

Hydraulic adjustment

77

DRAINING, FILLING AND BLEEDING THE ENGINE COOLING CIRCUIT

Engine: ES9A

Tools.

[1] Filling cylinder

[2] Adaptor for filling cylinder

[3] Control rod for filling cylinder

: 4520-T

: 4222-T

: 4370-T

IMPERATIVE: Respect the safety and cleanliness requirements.

The draining and refilling operations can be carried out using coolant fluid replacement equipment.

It is essential to follow the instructions as stated for that equipment.

B1GP0BPC

Draining.

Remove the header tank cap with caution (engine cold).

Open the bleed screw of the radiator.

Slacken the drain screw (1) of the radiator

Open the plug (2) to drain the first bank of cylinders.

NOTE: The plug (2) is provided with a drain tube.

B1BP2BNC

78

DRAINING, FILLING AND BLEEDING THE ENGINE COOLING CIRCUIT

Engine: ES9A

Open the plug (3) to drain the second bank of cylinders.

Remove the drain plugs (2) and (3).

Filling and bleeding the circuit.

Prior to any filling, rinse the cooling with fresh water.

WARNING: Check the sealing of the cooling circuit.

B1GP08TC

Open the bleed screws of the following components:

- Heater matrix outlet.

- Coolant outlet housing.

- Radiator.

Close the drain screw (1) of the radiator.

Refit the plugs (2) and (3) with a new seal ; tighten to

Fit the filling cylinder assembly [1], [3], and [2] on the filler aperture.

Fill the cooling circuit.

3

0,3 m.daN.

NOTE: Keep the filling cylinder full to the maximum.

B1GP0BQC

79

DRAINING, FILLING AND BLEEDING THE ENGINE COOLING CIRCUIT

Engine: ES9A

Reclose the bleed screw when the fluid flows out clear and without air bubbles.

Start the engine.

Maintain an engine speed of 1500/2500 rpm, up to the first cooling cycle (starting and stopping of

the cooling fan).

Block the filling cylinder [1] using the control rod [3].

Remove the filling cylinder assembly [1], [3] and [2].

Refit the header tank cap.

Stop the engine and wait for it to cool down.

B1GP08TC

Checks.

Start the engine.

Maintain an engine speed of 1500/2500 rpm, up to the first cooling cycle (starting and stopping of

the cooling fan).

Stop the engine and wait for it to cool down.

Remove the header tank cap with caution.

If necessary, top up the level to the maximum mark.

Refit the header tank cap.

B1GP0BQC

80

DRAINING, FILLING AND BLEEDING THE ENGINE COOLING CIRCUIT

Engine: DT17BTED4

Tools.

[1] Filling cylinder

[2] Adaptor for filling cylinder

[3] Control rod for filling cylinder

: 4520-T

: 4222-T

: 4370-T

IMPERATIVE: Respect the safety and cleanliness requirements.

The draining and refilling operations can be carried out using coolant fluid replacement equipment.

It is essential to follow the instructions as stated for that equipment.

Draining.

Remove the header tank cap.

Open the bleed screw of the engine cooling radiator, located under the radiator on the LH side.

Remove the drain screw (1).

Drain the cylinder block.

B1GP0CNC

81

DRAINING, FILLING AND BLEEDING THE ENGINE COOLING CIRCUIT

Engine: DT17BTED4

Filling and bleeding.

Open the bleed screw (2) on the heater matrix hose.

Open the bleed screw (3) of the engine cooling radiator.

Refit the drain screw (1) with a new seal.

Tighten the screw (1)

: 3 0,1.

Fit the filling cylinder [1], control rod [3] and adaptor [2] assembly on the filler

aperture.

Fill the engine cooling circuit.

NOTE: Keep the filling cylinder full to the maximum.

Start the engine.

Close each bleed screw as soon as the liquid starts to flow out without air

bubbles.

B1GP0CRC

B1GP0CPC

Block the filling cylinder [1], using the control rod [3].

Remove the filling cylinder [1], control rod [3] and adaptor [2] assembly.

Refit the header tank cap.

Stop the engine.

Checks.

Start the engine.

Maintain an engine speed of 1600 rpm, up to the second cooling cycle (starting

and stopping of the cooling fan).

Stop the engine and wait for it to cool down.

Remove the header tank cap.

If necessary, top up the level of the header tank to the maximum mark.

Refit the header tank cap.

B1GP0CQC

82

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

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