TorqFix

Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — OPEL / VAUXHALL

Astra H M32 Z19DTL Z19DT Z19DTH Gearbox on Opel / Vauxhall: 106 steps, engines Z19DT, Z19DTH, Z19DTJ, Z19DTL.

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

106 steps 4 engine codes

🧭 Before you start

Fits: platform codes 1.9, CDTI, 16V, |, 8V

  • 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

📐 41 workshop diagrams for Z19DT

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

Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 1
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 2
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 3
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 4
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 5
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 6
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 7
Astra H M32 Z19DTL Z19DT Z19DTH Gearbox — Z19DT · diagram 8
+ 33 more diagrams

📋 Procedure

Preparation and removal

  1. Stage 1:
  2. Stage 2:
  3. Proceed as follows:
  4. Remove the EGR cooler
  5. The gear-shift lever should be locked
Z19DT? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove the upper bolts from the gearbox
  2. Disconnect the reversing light switch
  3. Remove the coolant reservoir, but do not disconnect
  4. Remove the headlight(s)
  5. Protect the radiator
  6. Disconnect the power steering wiring loom
  7. Use a hoist to support the engine
  8. Rear engine support
  9. Note: Connect to the lifting eye
  10. Remove both front wheels
  11. Remove the wheel arch cover lining
  12. Remove the bumper front panel
  13. Remove the stabiliser link upper bolt
  14. Disconnect the tie rods
  15. Disconnect the steering arm ball joints from the wheel bearing housings
  16. Fit the special tool and apply pressure
  17. Disconnect the lower ball joints from the wheel bearing housing
  18. Use the special tool
  19. Remove the front exhaust pipe with catalytic converter
  20. Disconnect the gearbox operating linkage
  21. Disconnect the gearbox support bracket at the back of the engine/gearbox
  22. Disconnect the front engine support from the subframe
  23. Use the special tool to support the subframe
  24. Fit a lifting jack
  25. Remove the subframe bolts
  26. Lower the subframe
  27. Remove the drive shaft locking pin and locking nut
  28. Remove the drive shafts
  29. Collect the escaping fluid in a container
  30. Plug the holes
  31. Remove the intermediate drive shaft
  32. Remove the left engine support bolt
  33. Lower the engine/gearbox slightly
  34. Disconnect the starter motor electrical connections
  35. Remove the front engine support
  36. Remove the rear engine support
  37. Fit the special tool to support the gearbox
  38. Remove the engine to gearbox bolts
  39. Remove the gearbox

Installation and checks

  1. Reconnect the gear-shift cable
  2. Remove the special tool
  3. Turn the steering wheel to the straight-ahead position
  4. Stage 1:
  5. Lock the steering wheel in centre position
  6. Stage 3:
  7. Check for correct operation
  8. Reset volatile memories after reconnecting the battery cables
Workshop diagrams

Ask TorqFix about your Opel / Vauxhall Z19DT — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.

Ask about your Opel / Vauxhall Z19DT — free → or sign up free to see the drawings

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.