VW 1.4 TDI Injector R&I — VW

🧭 Before you start

• Special tools named: dial gauge
• Renewed: injector locking nut, bolts note, gasket

Don't miss

• Always renew the injector locking nut, adjustment screws and ball studs
• The injector must be able to turn slightly

🔧 Engine codes this applies to

📋 Procedure

Preparation and removal

1. Stage 1:
2. Disconnect the battery
3. O-ring guide tool:
4. Disconnect the crankcase breather hose
5. Adjuster locking nut:

6. Turn the adjustment screw
7. Remove the cylinder head cover
8. Turn the crankshaft until the camshaft lobes point fully upwards
9. Back off the adjustment screw
10. Remove the special tool
11. Note: Always renew the injector locking nut, adjustment screws and ball studs
12. From outside to inside
13. Use the special tool
14. Remove the rocker arm shaft
15. Remove the special tool
16. Disconnect the fuel injector connector
17. Use a screwdriver
18. Injector fitment:
19. Remove the injectors

Installation and checks

20. Fit a dial gauge
21. Reconnect the fuel injector wiring
22. Fit the special tool:
23. Fit the O-ring
24. Use the special tool
25. Refit the fuel injector
26. Push until the injector reaches the limiting stop
27. Fit the tensioning block
28. Note: Use new bolts
29. Note: Fit the bolt(s) finger-tight only
30. The injector must be able to turn slightly
31. The injector should be aligned at 90° to the camshaft bearing and tensioning block
32. Align the injectors
33. Measure the clearance:
34. Cylinder No.
35. Cylinder No.
36. Cylinder No.
37. Tighten the injector bolts
38. In several stages
39. Stage 1:
40. Stage 2:
41. Fit the rocker arm shaft
42. Note: Use new bolts
43. Stage 1:
44. Finger-tight only
45. Stage 2:
46. Stage 3:
47. Fit the new injector ball studs
48. Fit the new injector adjustment screws and locking nuts
49. Note: Lubricate the contact surfaces before fitting
50. Set the injector initial setting
51. Refit the cylinder head cover
52. Renew the gasket if necessary
53. Apply sealant as indicated
54. Maximum thickness:
55. Renew the air inlet seal
56. Further refitting is in the reverse order of removal

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