Gearbox removal & installation: Opel Agila F12 1.2 (Z12XE)
Step-by-step gearbox removal & installation for the Opel Agila F12 1.2 (Z12XE): 33 steps. 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.
🧭 Before you start
Fits: platform codes 1.2, 16V
🔧 Engine codes this applies to
📋 Procedure
- Disconnect the battery
- Remove the coolant expansion tank and place it aside
- Disconnect the clutch cable
- Bolts, gearbox support:
- Gearbox rear support:
- Disconnect the speedometer cable from the gearbox
- Disconnect the electrical wiring from the gearbox
- Remove the gearbox electrical connections
- Disconnect the gearbox earth cables
- Remove the engine/gearbox upper attaching bolts
- Use a hoist to support the engine
- Engine support tool:
- Special tools:
- Raise the vehicle
- Drain the gearbox fluid
- Remove the front wheels
- Remove the drive shafts
- Remove the left-hand gearbox support
- Remove the rear gearbox support
- Fit a transmission jack to support the transmission
- With special tool:
- Remove the engine/gearbox lower attaching bolts
- Separate the gearbox from the engine
- Remove the gearbox
Other OPEL / VAUXHALL procedures
- agila Z12XE
- Opel AstraG, Z14XEP 1.2 X12XE cylinder head removal & torque
- Corsa C Z12XE, Z14XEP
- Astra G Z12XE
- Opel Corsa C 1.2 Z12XE auxiliary belt replacement
- Opel Corsa C 1.2 CDTI timing chain replacement
- Opel Astra G 2.2 DTI Y22DTR timing chain replacement
- Opel VectraC, Signum 2.8 Z28NEL timing chain replacement
- Opel Astra G 2003 2.0 DTI Y20DTH timing chain replacement
- Opel Astra G X Y 20DTL 2.0 DTI X20DTL timing chain replacement
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.