TorqFix

Astra H F13+MTA Z14XEP Gearbox — OPEL / VAUXHALL

Astra H F13+MTA Z14XEP Gearbox on Opel / Vauxhall: 88 steps, engines Z14XEP. What to remove, in what order, and what to check after.

Workshop procedure for OPEL / VAUXHALL — the exact step sequence and torque figures, straight from real workshop data.

88 steps 1 engine code

🧭 Before you start

Fits: platform codes 1.4, 16V

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

Don't miss

  • Remove the coolant reservoir, but do not disconnect

🔧 Engine codes this applies to

Z14XEP

📋 Procedure

  1. Refill the gearbox
  2. Stage 2:
  3. Stage 3:
  4. Remove the three upper gearbox attaching bolts
  5. Fit the special tool to support the engine
Z14XEP? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Turn the steering wheel to the straight-ahead position
  2. Remove the key from the ignition switch
  3. Lock the steering wheel in centre position
  4. Stage 3:
  5. Remove the coolant reservoir, but do not disconnect
  6. Disconnect the oxygen sensor(s)
  7. Remove the headlight(s)
  8. Disconnect the power steering wiring loom
  9. Rear engine support
  10. Note: Connect to the lifting eye
  11. Engine hoist:
  12. Remove both front wheels
  13. Remove the wheel arch cover lining
  14. Remove the bumper front panel
  15. Remove the stabiliser link upper bolt
  16. Disconnect the tie rods
  17. Disconnect the steering arm ball joints from the wheel bearing housings
  18. Fit the special tool and apply pressure
  19. Disconnect the lower ball joints from the wheel bearing housing
  20. Use the special tool
  21. Remove the front exhaust pipe with catalytic converter
  22. Disconnect the gearbox operating linkage
  23. Disconnect the gearbox support bracket at the back of the engine/gearbox
  24. Disconnect the front engine support from the subframe
  25. Use the special tool to support the subframe
  26. Fit a lifting jack
  27. Remove the subframe bolts
  28. Lower the subframe
  29. Remove the drive shaft locking pin and locking nut
  30. Remove the drive shafts
  31. Collect the escaping fluid in a container
  32. Plug the holes
  33. Disconnect the clutch module wiring
  34. Remove the intermediate drive shaft
  35. Remove the left engine support bolt
  36. Lower the engine/gearbox slightly
  37. Remove the front engine support
  38. Remove the rear engine support
  39. Fit the special tool to support the gearbox
  40. Remove the engine to gearbox bolts
  41. Remove the gearbox

Other OPEL / VAUXHALL procedures

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.