Timing belt replacement: Citroen C4 Aircross 9HD (DV6C)

🧭 Before you start

Fits: platform codes 1.6, HDI, FAP

• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: locking tool, locking pin

Don't miss

• Always fit a new timing belt after removal
• Never turn the engine in the direction opposite to that of normal operation
• The magnetic track should show no signs of damage and must be kept away from magnetic sources; otherwise it will have to be replaced
• Repeat the procedure if the special tools do not fit properly

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

1. Flywheel locking tool:
2. Unless otherwise advised by the manufacturer, the following procedures are recommended:
3. Always fit a new timing belt after removal
4. Never turn the engine in the direction opposite to that of normal operation
5. Remove the front right wheel

6. Note: Avoid bending, torsion or traction
7. Crankshaft pulley
8. Lock the flywheel
9. Turn the crankshaft until the locking pin fits
10. Disconnect the wiring loom and move it aside
11. Disconnect the engine speed sensor
12. Timing belt covers:
13. Remove the timing belt upper cover
14. Crankshaft pulley:
15. Remove the crankshaft pulley
16. Remove the timing belt lower cover
17. Remove the speed sensor
18. Note: The magnetic track should show no signs of damage and must be kept away from magnetic sources; otherwise it will have to be replaced
19. Remove the bolt
20. Remove the timing belt guide
21. Turn the crankshaft clockwise
22. Fit the camshaft locking pin
23. Fit the high-pressure pump gearwheel locking pin
24. Fit the crankshaft locking pin
25. Use a trolley jack to support the engine
26. Note: Put a wooden block between the sump and the jack
27. Remove the engine mount
28. Remove the engine support bracket
29. Loosen the tensioner pulley bolt
30. Remove the camshaft locking pin
31. Remove the crankshaft locking pin
32. Remove the timing belt
33. Fit the flywheel locking tool
34. Remove the crankshaft pulley centre bolt
35. Remove the plugs

Installation and checks

36. Note: Fit the timing belt fully taut
37. Refit the timing belt guide
38. Use a hexagonal wrench
39. Tighten the tensioner pulley bolt
40. Refit the crankshaft pulley bolt
41. Remove the flywheel locking pin
42. Refit the engine support bracket
43. Refit the engine mount
44. Remove the trolley jack
45. Turn the crankshaft clockwise, 6 rotations
46. Fit the crankshaft locking pin
47. Check the position of the tensioner
48. Repeat the procedure if required
49. Fit the camshaft locking pin
50. Fit the high-pressure pump gearwheel locking pin
51. Note: Repeat the procedure if the special tools do not fit properly
52. Remove the crankshaft locking pin
53. Remove the camshaft locking pin
54. Remove the high-pressure pump gearwheel locking pin
55. Fit the timing belt lower cover
56. Refit the crankshaft pulley
57. Use a new bolt
58. Refit the pulley cover
59. Refit the timing belt upper cover
60. Remove the flywheel locking tool
61. Reconnect the wiring loom
62. Reconnect the engine speed sensor
63. Fit the ancillary drive belt
64. Reconnect the fuel lines
65. Refit the engine lower cover
66. Refit the wheel arch cover lining
67. Refit the front right wheel
68. Refit the intercooler hoses
69. Refit the engine upper cover
70. Reconnect the battery
71. Prime the fuel circuit before starting the engine

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