OPEL / VAUXHALL Z17DT — 1.7L Engine
1.7L · 80-125 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | Z 17 DT |
| Capacity | 1686 cc |
| Idle speed | 850 rpm |
| Inlet | 0.40 ± 0.05 mm |
| Exhaust | 0.40 ± 0.05 mm |
| Normal | 26 - 30 bar |
| Max. compression loss between cylinders | 25 % |
| Oil pressure | 1.27 bar/rpm |
Engine (diesel)
| System (make and type) | Denso DECe01 |
| Number of cylinders | 4 |
| Injector firing order | 1 - 3 - 4 - 2 |
| High-pressure pump: | Denso HP3 |
| Pressure | 8.0 ± 0.1 / 2200 bar/rpm |
| Injector (make and type) | Denso - DLL - P |
| Max. no-load governed speed | 5100 - 5300 rpm |
| Exhaust gas analysis | < 1.6 m-1 |
Cooling system
| Thermostat opens at | 89 °C |
Brakes
| Disc thickness, front | 25.0 mm |
| Disc thickness, front, min. | 22.0 mm |
| Disc thickness, rear | 10.0 mm |
| Disc thickness, rear, min. | 8.0 mm |
| Brake pad thickness, front | 16.0 mm |
| Brake pad thickness, front, min. | 7.0 mm |
| Brake pad thickness, rear | 16.0 mm |
| Brake pad thickness, rear, min. | 7.0 mm |
Steering and wheel alignment
| Toe-in, front | 0° 00' ± 10' ° |
| Camber, front | -1°10' ± 45' ° |
| Max. difference left side - right side | 1° ° |
| Castor, front | 2°55' ± 1° ° |
| Toe-in, rear | 0°08' +30/-15' ° |
| Max. difference left side - right side | 15' ° |
| Camber, rear | -1°45' ± 30' ° |
| Max. difference left side - right side | 35' ° |
Wheels and tyres
| Tyre size | 185/60 R15 88H (6Jx15) |
| Optional | 205/50 R16 87H (6Jx16) |
| Optional | 205/45 R17 88V (6½Jx17) |
| Optional | 185/60 R15 88 (6Jx15) |
| Front tyre pressure | 2.8 bar |
| Rear tyre pressure | 2.6 bar |
Capacities
| Engine sump, incl. filter | 5.4 l |
| Manual transmission | M32 |
| Gearbox refill | 2.4 l |
| Cooling system | 7.1 l |
| Air-conditioner refrigerant | 690 (-> 2005) 650 (2006 ->) g |
| Air-conditioner compressor oil | 120 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 50 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 1 | 25 Nm |
| Cylinder head bolts — Stage 2 | 100 ° |
| Cylinder head bolts — Stage 3 | 15 ° |
| Cylinder head bolts — Stage 1 | 85 Nm |
| Cylinder head bolts — Stage 2 | 30 ° |
| Alternator | M10: 48 M14: 68 Nm |
| Wheel bolts | 110 Nm |
Engine codes in the same family
The same code prefix usually means the same block with a different output, fuel or model year. Procedures are often shared — check the code on the engine plate.
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
Got a Z17DT problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →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.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.