Astra H - Z17DTR, Zafira B - A17DTR/DTJ — OPEL / VAUXHALL
Astra H - Z17DTR, Zafira B - A17DTR/DTJ on Opel / Vauxhall: 80 steps, engines A17DTJ, A17DTR, Z17DTJ, Z17DTR.
Workshop procedure for OPEL / VAUXHALL — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform codes 1.7, CDTI, |, 16V
- Timing position: the crankshaft or camshaft is set and locked during this job
- Special tools named: locking tool
📐 21 workshop diagrams for A17DTJ
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
Preparation and removal
- Adaptor:
- Disconnect the battery earth cable
- Engine support:
- Block the high-pressure pump gearwheel
- Remove the air filter housing
- Fit the special tool
- Align the drive unit with the front axle body
- Use the special tool
- Align the timing marks
- Remove the ancillary drive belt
- Lock the tensioner
- Remove the bolts
- Remove the crankshaft pulley
- Lower the vehicle
- Raise the vehicle
- Remove the lower timing cover
- Turn the crankshaft to TDC for cylinder 1
- Turn the tensioner anti-clockwise to release the tension
- Remove the timing belt
Installation and checks
- Fit the timing belt clockwise, starting at the crankshaft gearwheel
- Note: Avoid bending, torsion or traction
- Refit the upper timing cover
- Reconnect the camshaft sensor
- Refit the right-hand engine support bracket
- Refit the right engine damper support
- Remove the tensioner locking tool
- Refit the front right splash guard
- Refit the air filter
- Refit the resonator
- Refit the air inlet
- Reconnect the mass airflow meter plug
- Refit the engine cover
- Reconnect the battery earth cable
Ask TorqFix about your Opel / Vauxhall A17DTJ — 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 A17DTJ — 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.