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.
🧭 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
📐 41 workshop diagrams for Z19DT
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
Preparation and removal
- Stage 1:
- Stage 2:
- Proceed as follows:
- Remove the EGR cooler
- The gear-shift lever should be locked
- Remove the upper bolts from the gearbox
- Disconnect the reversing light switch
- Remove the coolant reservoir, but do not disconnect
- Remove the headlight(s)
- Protect the radiator
- Disconnect the power steering wiring loom
- Use a hoist to support the engine
- Rear engine support
- Note: Connect to the lifting eye
- Remove both front wheels
- Remove the wheel arch cover lining
- Remove the bumper front panel
- Remove the stabiliser link upper bolt
- Disconnect the tie rods
- Disconnect the steering arm ball joints from the wheel bearing housings
- Fit the special tool and apply pressure
- Disconnect the lower ball joints from the wheel bearing housing
- Use the special tool
- Remove the front exhaust pipe with catalytic converter
- Disconnect the gearbox operating linkage
- Disconnect the gearbox support bracket at the back of the engine/gearbox
- Disconnect the front engine support from the subframe
- Use the special tool to support the subframe
- Fit a lifting jack
- Remove the subframe bolts
- Lower the subframe
- Remove the drive shaft locking pin and locking nut
- Remove the drive shafts
- Collect the escaping fluid in a container
- Plug the holes
- Remove the intermediate drive shaft
- Remove the left engine support bolt
- Lower the engine/gearbox slightly
- Disconnect the starter motor electrical connections
- Remove the front engine support
- Remove the rear engine support
- Fit the special tool to support the gearbox
- Remove the engine to gearbox bolts
- Remove the gearbox
Installation and checks
- Reconnect the gear-shift cable
- Remove the special tool
- Turn the steering wheel to the straight-ahead position
- Stage 1:
- Lock the steering wheel in centre position
- Stage 3:
- Check for correct operation
- Reset volatile memories after reconnecting the battery cables
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 drawingsOther OPEL / VAUXHALL procedures
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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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.