3.0 TFSi_CMUA_Timing Chain — AUDI

🧭 Before you start

Remove the supercharger, starter, oil filter housing and oil cooler, set the compressor aside and drain the oil. Lock the camshafts and crankshaft, compress and pin each tensioner, and remove the camshaft chains, valve gear drive chain and balance shaft chain with rails and gearwheels. Refit with new chains and bolts, set the camshaft adjusters and balance shaft gearwheel, tighten in stages and remove the locking pins. Turn the crankshaft two rotations, recheck the timing, then refit covers and check fuel pressure.

Fits: platform codes 3.0, TFSI, |, S4, S5

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

Don't miss

• Always renew the timing chain.
• Mark chain running direction and component positions before removal.
• Use new bolts where specified, including camshaft adjuster bolts.
• Counterhold with the special tool when tightening camshaft adjuster bolts.
• Turn the crankshaft two rotations and check the blocking tools still fit.
• Renew the sealing rings on reassembly.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📐 3 workshop diagrams for CAKA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

Preparation and removal

1. Camshaft adjustment device:
2. Camshaft adjustment device:
3. Always renew the timing chain
4. Remove the supercharger
5. Stage 2:

6. Stage 3:
7. Stage 1:
8. Drain the engine oil
9. Stage 2:
10. Stage 1:
11. Remove the tensioner locking pin
12. Stage 1:
13. Remove the oil filter housing
14. Left-hand side:
15. Remove the starter motor
16. Stage 2:
17. Stage 1:
18. Place a draining tray under the engine
19. Remove the oil cooler but do not disconnect
20. Turn the gearwheel anti-clockwise to its stop
21. Remove the air-conditioning compressor but do not disconnect
22. Note: The crankshaft may be rotated backwards and forwards slightly, to allow the tool to fit
23. Remove the camshaft adjuster
24. Type 1:
25. Stage 1:
26. Type 2:
27. Stage 2:
28. Remove the camshaft gearwheels
29. Repeat the procedure
30. Note: Mark the position of the component before removal
31. Compress the tensioner
32. Remove the balance shaft gearwheel
33. Remove the balance shaft chain together with the tensioner rail
34. Compress the tensioner
35. Fit the locking pin
36. Remove the bolts
37. Remove the chain guide rail
38. Remove the chain tensioner rail
39. Remove the chain
40. Note: Before removing, mark the direction of rotation

Installation and checks

41. Stage 1:
42. Tensioner locking pin:
43. Refit the chain tensioner rail
44. Note: Renew the sealing ring(s)
45. Stage 2:
46. Left-hand side
47. Note: Use new bolts
48. Run the engine at idle speed
49. Check the fuel pressure
50. Stage 2:
51. Turn the ignition off
52. Refit the fuse
53. Stage 5:
54. Stage 6:
55. Refit the chain
56. Remove the tensioner locking pin
57. Refit the chain tensioner, drive chain and balance shaft gearwheel
58. At the same time, tighten the bolt(s)
59. Note: Use new bolts
60. Refit the camshaft adjuster
61. Note: Use a new bolt
62. Check the camshaft timing marks
63. Refit the camshaft chain
64. on the left- and right-hand sides
65. Tension the chain
66. Stage 1:
67. Stage 1:
68. Compress the tensioner
69. Tension the chain
70. Fit the locking pin
71. Tighten the camshaft adjuster bolt
72. Use the special tool to counterhold
73. Remove the locking pin
74. Turn the crankshaft clockwise 2 rotations
75. Check that the blocking tools still fit
76. Repeat the procedure if required
77. Refit the access plug

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