A seized engine in your 2013 Kia Optima at 200,000 miles means internal components have welded themselves together - the engine cannot rotate and is beyond repair as-is. Understanding what happened and your options helps you decide the best path forward.
What Causes an Engine to Seize
Oil starvation from running low allows metal-to-metal contact, generating heat that welds parts together. Overheating can warp and seize components. Bearing failure progression leads to seizure. Broken timing components can jam valves into pistons. Coolant leaks causing severe overheating warp internal parts.
Kia Theta II Engine Context
The 2.4L Theta II engine in your Optima has had documented problems with oil flow and bearing failures. Kia and Hyundai have extended warranties and performed settlements. At 200,000 miles, you may still qualify for assistance - check with Kia.
Determining What Happened
Check oil level and condition. Look for coolant leaks or signs of overheating. Review recent symptoms - did you ignore warning signs? This information helps if pursuing warranty assistance and prevents future issues with a replacement engine.
Moving Forward
Used engine from a salvage yard ($1,500-2,500 installed). Remanufactured long block ($3,000-4,500). Junk the vehicle and recover scrap value. Trade it to a dealer (they may offer something above scrap). The vehicle's condition and your financial situation guide the decision.