Timing chain replacement: VW Eos 1F 2.0 TFSi camshaft (BWA)

🧭 Before you start

Disconnect the battery, depressurise the fuel system and remove the vacuum pump, breather pipes, harness brackets, upper belt cover and camshaft cover. Set the engine to TDC cylinder 1 turning clockwise, align and lock the camshafts, then pin the chain tensioner and remove the adjuster and chain with its gearwheel. Fit the chain to the gearwheels by the marks, refit the adjuster with new bolts in two stages, remove the locking pin, turn the crankshaft slowly clockwise and recheck the timing.

Fits: platform codes 2.0, TFSI

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

Don't miss

• Always turn the engine clockwise when setting TDC and checking timing.
• Depressurise the high-pressure fuel system before disconnecting anything on it.
• Lock the tensioner with a locking pin before removing the chain.
• Use new bolts where specified and tighten them in stages.
• Recheck camshaft alignment after turning the crankshaft; repeat the procedure if it is not correct.

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

🔧 Engine codes this applies to

📐 42 workshop diagrams for BWA

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

📋 Procedure

Preparation and removal

1. Disconnect the battery earth cable
2. High-pressure fuel circuit:
3. Depressurise the system
4. Use a diagnostic tool
5. Disconnect the fuel pressure regulator connector

6. Remove the timing belt upper cover
7. Disconnect the vacuum hose
8. Disconnect the cylinder head breather hose
9. Stage 1:
10. Stage 2:
11. Remove the crankcase breather pipe from the cylinder head cover
12. Use new bolt(s)
13. Remove the locking pin
14. Camshaft gearwheel holding tool:
15. Disconnect the vacuum pump hose
16. Remove the vacuum pump
17. If necessary
18. Locking pin:
19. Disconnect the coolant hose
20. Disconnect the wiring
21. Disconnect the wiring loom bracket
22. Note: Do not disconnect
23. Move the harness aside
24. All vehicles:
25. Unclip the wiring
26. Remove the harness bracket
27. Remove the camshaft cover
28. Turn the crankshaft to TDC for cylinder 1
29. Note: Turn the engine clockwise
30. Align the camshaft timing marks
31. Align the camshafts
32. Lock the camshafts
33. Use a special tool:
34. Camshaft adjuster unit
35. Loosen the bolts
36. 1/2 a turn
37. Apply pressure to the chain to release the tensioner piston
38. Lock the tensioner; use a locking pin
39. Use a special tool:
40. Remove the camshaft adjuster
41. Remove the timing chain together with the camshaft gearwheel

Installation and checks

42. Fit the timing chain onto the camshaft gearwheel
43. Refit the exhaust camshaft adjuster
44. Camshaft adjuster unit
45. Use new bolt(s)
46. Stage 1:
47. Stage 2:
48. Use new bolt(s)
49. Fit the timing chain onto the inlet camshaft gearwheel
50. To the top of the inlet camshaft gearwheel
51. Slowly turn the crankshaft clockwise
52. Use a special tool:
53. Turn the camshaft as shown
54. Check that the position is correct as shown
55. If the alignment is not correct, follow the procedure below

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