Only two platform models—the Lacetti and Nubira in J200 bodies—were equipped with the 1.8-liter, 16-valve Daewoo T18SED engine, which was built in South Korea between 2002 and 2007. The more recent F18D3 replaced this motor, which was a replica of the Opel X18XE power unit.
SE-series: T18SED, X20SED, T22SED.
Specifications
| 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 |
9.8 5.9 7.4 |
| 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
It is an easy-to-use, dependable power unit that requires little upkeep or repair;
Keep an eye on the timing belt’s condition; it has a 60,000-kilometer lifespan and bends the valves when it breaks.
The engine’s exhaust manifold is another weak point; it frequently cracks; RPMs at idle typically float because of contamination of the idle control or crankcase ventilation; and the camshaft position sensor malfunctions more frequently than other electrical components.