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 family: 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
- 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.
Frequently asked questions about the Daewoo T18SED
How much power does the Daewoo T18SED make?
The Daewoo T18SED develops 121 hp and 165 Nm of torque.
How much oil does the Daewoo T18SED take and which one?
Engine oil capacity: 3.75 liters. Recommended oil: 5W-30.
Does the Daewoo T18SED have a timing belt or chain?
The Daewoo T18SED uses a timing belt.
Is the Daewoo T18SED turbocharged?
No, the Daewoo T18SED is naturally aspirated.
Does the Daewoo T18SED need valve clearance adjustment?
No, the Daewoo T18SED has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Daewoo T18SED last?
The typical lifespan of the Daewoo T18SED is ~320 000 km with proper maintenance.
What is the fuel consumption of the Daewoo T18SED?
Daewoo Lacetti 2005: city 9.8, highway 5.9, combined 7.4 L/100 km.
What cars was the Daewoo T18SED installed on?
Daewoo Nubira J200 in 2002 - 2005; Chevrolet Lacetti 1 (J200) in 2004 - 2007.
What are the common problems of the Daewoo T18SED?
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. All known problems.
