Only the company’s most well-known models, including the Astra, Corsa, and Agila, were equipped with the 1.2-liter Opel Z12XE or LW4 engine, which was assembled at an Austrian plant between 2000 and 2004. This power unit had a Euro 2 version under the X12XE index until 2000.
The Z10XE, Z10XEP, Z12XEP, Z14XE, and Z14XEP engines are also part of the Z10 series.
The engine was mounted on:
- Opel Agila A (H00) in 2000 – 2003;
- Opel Astra G (T98) in 2000 – 2004;
- Opel Corsa C (X01) in 2000 – 2004.
Specifications
| Production years | 2000-2004 |
| Displacement, cc | 1199 |
| Fuel system | distributed injection |
| Power output, hp | 75 |
| Torque output, Nm | 110 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 72.5 |
| Piston stroke, mm | 72.6 |
| Compression ratio | 10.1 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.5 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Opel Astra 2002) — city — highway — combined |
8.0 5.2 6.2 |
| Engine lifespan, km | ~270 000 |
| Weight, kg | 100 |
Disadvantages of the Z12XE engine
Electrical issues are the primary cause of the motor’s problems; typically, the ECU unit malfunctions;
Seldom does the timing chain travel more than 100,000 kilometers before stretching and beginning to rattle;
The exhaust manifold is frequently cracking and the EGR valve is clogged with soot;
Here, neither the oil pump nor the thermostat have the best resources;
The condition of hydraulic lifters is rapidly impacted by the use of inferior oils.