The 1.6-liter Opel Z16XE or Ecotec L91 engine was produced from 2000 to 2005 in Hungary and was installed on the most popular concern models of its time, such as Astra, Vectra, Zafira. The power unit is essentially just an updated version of the famous X16XEL motor.
Z15 family: Z16SE, Z16XE, Z16XEP, Z16XER, Z18XE, Z18XER.
Specifications
| Production years | 2000-2005 |
| Displacement, cc | 1598 |
| Fuel system | distributed injection |
| Power output, hp | 101 |
| Torque output, Nm | 150 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 79 |
| Piston stroke, mm | 81.5 |
| Compression ratio | 10.5 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | belt |
| 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 2004) — city — highway — combined |
9.5 5.5 7.0 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 120 |
The engine was installed on:
- Opel Astra G (T98) in 2000 – 2005;
- Opel Meriva A (X03) in 2003 – 2005;
- Opel Vectra B (J96) in 2000 – 2002, Vectra C (Z02) in 2004 – 2005;
- Opel Zafira A (T98) in 2000 – 2005.
Disadvantages of the Z16XE engine
- Most often, owners complain about the oil burner and decarbonization does not always help here;
- The reason for the oil consumption is usually in valve stem seals that have come off the guides;
- The culprit for the loss of traction and floating engine speed is a clogged EGR valve;
- According to the regulations, the timing belt changes every 60,000 km or, if it breaks, it will bend the valves;
- Electrical problems regularly arise due to weak wiring or ECU glitches.
Frequently asked questions about the Opel Z16XE
How much power does the Opel Z16XE make?
The Opel Z16XE develops 101 hp and 150 Nm of torque.
How much oil does the Opel Z16XE take and which one?
Engine oil capacity: 3.5 liters. Recommended oil: 5W-30.
Does the Opel Z16XE have a timing belt or chain?
The Opel Z16XE uses a timing belt.
Is the Opel Z16XE turbocharged?
No, the Opel Z16XE is naturally aspirated.
Does the Opel Z16XE need valve clearance adjustment?
No, the Opel Z16XE has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Opel Z16XE last?
The typical lifespan of the Opel Z16XE is ~320 000 km with proper maintenance.
What is the fuel consumption of the Opel Z16XE?
Opel Astra 2004: city 9.5, highway 5.5, combined 7.0 L/100 km.
What cars was the Opel Z16XE installed on?
Opel Astra G (T98) in 2000 - 2005; Opel Meriva A (X03) in 2003 - 2005; Opel Vectra B (J96) in 2000 - 2002, Vectra C (Z02) in 2004 - 2005; Opel Zafira A (T98) in 2000 - 2005.
What are the common problems of the Opel Z16XE?
Most often, owners complain about the oil burner and decarbonization does not always help here. The reason for the oil consumption is usually in valve stem seals that have come off the guides. All known problems.
