Engine Daewoo T18SED

The 1.8-liter 16-valve Daewoo T18SED engine was assembled from 2002 to 2007 in South Korea and was installed only on a couple of platform models: Lacetti and Nubira in J200 bodies. This motor was a clone of the Opel X18XE power unit and gave way to the newer F18D3.

SE-series: T18SED, X20SED, T22SED.


Production years 2002-2007
Displacement, cc 1799
Fuel system distributed injection
Power output, hp 121
Torque output, Nm 165
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 81.6
Piston stroke, mm 86
Compression ratio 9.8
Features no
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 3.75
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Daewoo Lacetti 2005)
— city
— highway
— combined
Engine lifespan, km ~320 000
Weight, kg 140

The engine was installed on:

  • Daewoo Nubira J200 in 2002 – 2005;
  • Chevrolet Lacetti 1 (J200) in 2004 – 2007.

Disadvantages of the Daewoo T18SED engine

  • Simple and reliable power unit, it is inexpensive both in maintenance and repair;
  • Monitor the condition of the timing belt, its resource is 60 thousand km, and when it breaks, the valves bend;
  • Another weak point of the engine is the exhaust manifold, it often cracks;
  • RPMs at idle usually float due to contamination of the idle control or crankcase ventilation;
  • In electrical terms, the camshaft position sensor fails more often than others.

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