The 1.6-liter Opel C16NZ engine was produced from 1987 to 1993 at the plant in Bochum and was installed on a number of popular models of the concern, such as Astra, Corsa, Vectra and Kadett. This power unit quickly gave way to a more modern X16SZ engine.
The C10 line also includes engines: C14NZ and C18NZ.
The engine was installed on:
- Opel Astra F (T92) in 1991 – 1994;
- Opel Ascona C (J82) in 1987 – 1988;
- Opel Corsa A (S83) in 1989 – 1991;
- Opel Kadett E (T85) in 1987 – 1993;
- Opel Vectra A (J89) in 1988 – 1993.
Specifications
| Production years | 1987-1993 |
| Displacement, cc | 1598 |
| Fuel system | single injection |
| Power output, hp | 75 |
| Torque output, Nm | 125 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 79 |
| Piston stroke, mm | 81.5 |
| Compression ratio | 9.2 |
| 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 1 |
| Fuel consumption, L/100 km (for Opel Vectra 1990) — city — highway — combined |
9.6 5.5 7.0 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 120 |
Disadvantages of the C16NZ engine
- Most often, owners complain about ignition system failures, a spark disappears in it.
- The reason usually lies in the cover of the distributor, high-voltage wires or candles.
- The timing belt resource is about 60,000 km, it’s good that when it breaks, the valves do not bend.
- Often problems arise due to the failure of sensors, such as a lambda probe.
- The idle speed controller, thermostat and fuel pump have a limited resource.
