Kia Optima: First generation (MS; 2000–2005)

Second generation (MG; 2005–2010)

The second generation Optima, known as the Kia Magentis globally except the United States and Malaysia, and as the Kia Lotze in South Korea, was launched in South Korea in November 2005. ...

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If the engine doesn't turn over or turns over slowly
1. If your vehicle has an automatic transaxle, be sure the shift lever is in N (Neutral) or P (Park) and the emergency brake is set. 2. Check the battery connections to be sure they are clean ...

Parts
When replacing parts, use KIA MOTORS genuine parts. ...

Installation
1. The key of crankshaft should be aligned with the mating face of main bearing cap. As a result of this, the piston of No.1 cylinder is placed at the top dead center on compression ...