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 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.
|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|
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||3.5|
|Euro standards||EURO 1|
|Fuel consumption, L/100 km (for Opel Vectra 1990)
|Engine lifespan, km||~320 000|
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.