The 1.2-liter Opel Z12XE or LW4 engine was assembled from 2000 to 2004 at a plant in Austria and installed only on the most popular models of the concern, such as Astra, Corsa and Agila. Until 2000, there was a Euro 2 version of this power unit under the X12XE index.
Z10 family: Z10XE, Z10XEP, Z12XE, Z12XEP, Z14XE, Z14XEP.
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 |
The engine was installed on:
- Opel Agila A (H00) in 2000 – 2003;
- Opel Astra G (T98) in 2000 – 2004;
- Opel Corsa C (X01) in 2000 – 2004.
Disadvantages of the Z12XE engine
- The main problems of the motor are associated with electrical glitches, usually the ECU unit fails;
- The timing chain rarely goes more than 100 thousand km, and then stretches and starts to rattle;
- Quite often, the EGR valve is clogged with soot and the exhaust manifold is cracking;
- The thermostat, as well as the oil pump, do not have the greatest resource here;
- The use of low-quality oils quickly affects the condition of hydraulic lifters.
Frequently asked questions about the Opel Z12XE
How much power does the Opel Z12XE make?
The Opel Z12XE develops 75 hp and 110 Nm of torque.
How much oil does the Opel Z12XE take and which one?
Engine oil capacity: 3.5 liters. Recommended oil: 5W-30.
Does the Opel Z12XE have a timing belt or chain?
The Opel Z12XE uses a timing chain.
Is the Opel Z12XE turbocharged?
No, the Opel Z12XE is naturally aspirated.
Does the Opel Z12XE need valve clearance adjustment?
No, the Opel Z12XE has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Opel Z12XE last?
The typical lifespan of the Opel Z12XE is ~270 000 km with proper maintenance.
What is the fuel consumption of the Opel Z12XE?
Opel Astra 2002: city 8.0, highway 5.2, combined 6.2 L/100 km.
What cars was the Opel Z12XE installed on?
Opel Agila A (H00) in 2000 - 2003; Opel Astra G (T98) in 2000 - 2004; Opel Corsa C (X01) in 2000 - 2004.
What are the common problems of the Opel Z12XE?
The main problems of the motor are associated with electrical glitches, usually the ECU unit fails. The timing chain rarely goes more than 100 thousand km, and then stretches and starts to rattle. All known problems.
