Engine Opel C16NZ

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 92
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.

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