A4_8K/A5_8T_1.8 TFSi_Generation II_Timing Chain — AUDI

🧭 Before you start

Fits: platform codes 1.8, TFSI

• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: locking tool, locking pin
• Renewed: timing chain removal tool, bolts number of bolts

Don't miss

• Always renew the timing chain
• Do not rotate the crankshaft

🔧 Engine codes this applies to

📐 37 workshop diagrams for CABA

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

📋 Procedure

Preparation and removal

1. Always renew the timing chain
2. Removal tool:
3. Disconnect the battery earth cable
4. Place the front in the service position
5. Note: Avoid bending, torsion or traction

6. Adaptor:
7. Check the balance shaft timing marks
8. Remove the inlet camshaft timing adjuster
9. Note: Use new bolts
10. Fit the tensioner locking tool
11. Use the special tool
12. Note: Left-hand thread
13. Remove the camshaft hub
14. Remove the ancillary drive belt
15. Turn the crankshaft to TDC for cylinder 1
16. Turn the crankshaft clockwise to align the timing marks
17. Use the special tool
18. Remove the crankshaft pulley
19. Note: Do not rotate the crankshaft
20. Use a special tool to hold the crankshaft pulley
21. Temporarily fit the crankshaft pulley bolt and spacer
22. Remove the ancillary drive belt idler pulley
23. Remove the dipstick tube
24. Remove the timing chain cover
25. Removal sequence:
26. Clean off the old sealant
27. Move the tensioner to the slack position
28. Lock the chain tensioner with a locking pin
29. Remove the oil pump chain tensioner
30. Remove the oil pump chain
31. Remove the bolts shown
32. Fit the special tool:
33. Type 1:
34. Use a screwdriver to release the tensioner pawl
35. Slowly compress the tensioner
36. Use the special tool
37. Fit the locking pin
38. Remove the balance shaft chain guide rails
39. Remove the balance shaft chain

Installation and checks

40. Refit the balance shaft chain
41. Type 2:
42. Unlock the tensioner
43. Slowly compress the tensioner
44. Fit the timing chain onto the exhaust camshaft gearwheel
45. Fit the timing chain onto the crankshaft gearwheel
46. Refit the chain guide rail
47. Fit the inlet camshaft locking tool
48. Slowly turn the exhaust camshaft anti-clockwise
49. Remove the exhaust camshaft locking tool
50. While counterholding the exhaust camshaft
51. Lock the exhaust camshaft gearwheel
52. Remove the chain guide rails
53. Refit the chain tensioner rail
54. Slowly turn the inlet camshaft anti-clockwise
55. Remove the chain tensioner
56. Check the timing marks
57. Refit the oil pump chain
58. Refit the oil pump chain tensioner
59. Release the tensioner
60. Refit the bolts shown
61. Refit the camshaft hub
62. Refit the bolts shown
63. Finger-tight only
64. Remove the tensioner locking tool
65. Type 1:
66. Type 2:
67. Tighten the bolts
68. Note: Use a new bolt
69. Refit the inlet camshaft timing adjuster
70. Note: Left-hand thread
71. Use the special tool
72. Turn the engine 2 rotations clockwise
73. Check the valve timing
74. Proceed as follows:
75. Turn the crankshaft to TDC for cylinder 1
76. Check the timing marks
77. Remove the spark plug for cylinder 1
78. Fit the special tools
79. Slowly turn the crankshaft clockwise
80. Check that the indicator is in the correct position
81. Measure the distance:
82. Correct value:
83. Measure the distance:
84. Correct value:
85. If necessary:
86. Refit the chain
87. Apply sealant as indicated
88. Remove/clean off any excess sealant
89. Fit the timing chain lower cover
90. Note: Use new bolts
91. Number of bolts:
92. Type 1:
93. Stage 1:
94. Stage 2:
95. Number of bolts:
96. Type 2:
97. Type 2:
98. Stage 1:
99. Stage 2:

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