Gearbox removal & installation: Opel Astra F 17DT 1.7 TD (X17DT)

🧭 Before you start

Note the radio code, lock the gear-shift lever, then disconnect hoses, wiring, cables and fuel and power steering lines between the engine/gearbox and the body. Mark and disconnect the selector rod, attach a hoist, remove the wheels, exhaust front pipe, steering ball joints and rear engine support, then the subframe. Release both drive shafts with the special tool, support the unit on a jack, free the engine supports and lower it out.

Fits: platform codes 1.7, TDS

• Opens: fuel

Don't miss

• Check the audio security code before disconnecting the battery.
• Lock the gear-shift lever and mark the selector rod position before separating it.
• Use the special tool to release the drive shafts from the gearbox.
• Hold the engine on a hoist before the subframe and rear engine support come off.
• Collect power steering fluid and fuel when those lines are opened, as general practice.

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

🔧 Engine codes this applies to

📐 11 workshop diagrams for X17DT

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

📋 Procedure

1. Before disconnecting the battery cable, check the audio system security code
2. Exhaust pipe to manifold:
3. The gear-shift lever should be locked
4. Bolt, gear selector rod
5. Remove the water hoses from the expansion tank

6. Disconnect the brake servo vacuum hose
7. Rear engine support
8. Disconnect the oil pressure switch
9. Subframe:
10. Disconnect the starter motor wiring
11. Disconnect the engine control unit
12. Disconnect the alternator wiring
13. Disconnect the injection pump bowden cable
14. Disconnect the fuel lines from the fuel pump
15. Disconnect the power steering pump lines
16. Disconnect the clutch cable
17. Disconnect the speedometer cable (gearbox connection)
18. Disconnect the gear selector rod
19. Note: Mark the position
20. Disconnect the remaining wiring, lines and hoses between the engine/gearbox and the bodywork
21. Attach the engine to a hoist
22. Remove the front wheels
23. Remove the front exhaust pipe
24. Disconnect the steering arm ball joints from the wheel bearing housings
25. Disconnect the rear engine support
26. Remove the subframe
27. Disconnect the right-hand drive shaft from the gearbox
28. Use a special tool:
29. Disconnect the left-hand drive shaft from the gearbox
30. Use a special tool:
31. Support the engine/gearbox with a lifting jack
32. Disconnect the engine supports
33. Lower the engine/gearbox from the engine compartment

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