Kia Optima engine and engine cooling problems by year
244 NHTSA owner complaints name the engine and engine cooling across 20 Optima model years. The most reported year is 2013 with 41 reports.
| Year | Engine and Engine Cooling reports | Share | Median mileage | |
|---|---|---|---|---|
| 2020 Optima | 8 | 6% | — | |
| 2019 Optima | 3 | 1% | — | |
| 2018 Optima | 14 | 6% | — | |
| 2017 Optima | 7 | 3% | — | |
| 2016 Optima | 24 | 3% | 104,588 mi | |
| 2015 Optima | 30 | 3% | 99,000 mi | |
| 2014 Optima | 14 | 2% | 131,859 mi | |
| 2013 Optima | 41 | 3% | 130,000 mi | |
| 2012 Optima | 19 | 2% | 132,000 mi | |
| 2011 Optima | 7 | 1% | — | |
| 2010 Optima | 2 | 3% | — | |
| 2009 Optima | 2 | 2% | — | |
| 2008 Optima | 5 | 3% | — | |
| 2007 Optima | 4 | 2% | — | |
| 2006 Optima | 9 | 6% | — | |
| 2005 Optima | 6 | 4% | — | |
| 2004 Optima | 11 | 5% | — | |
| 2003 Optima | 7 | 5% | — | |
| 2002 Optima | 7 | 7% | — | |
| 2001 Optima | 24 | 17% | 54,000 mi |
Share is the fraction of that year’s complaints naming the engine and engine cooling. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.