Kia K5 engine problems by year
76 NHTSA owner complaints name the engine across 5 K5 model years. The most reported year is 2021 with 28 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2025 K5 | 3 | 6% | — | |
| 2024 K5 | 8 | 30% | — | |
| 2023 K5 | 12 | 12% | — | |
| 2022 K5 | 25 | 20% | — | |
| 2021 K5 | 28 | 18% | — |
Share is the fraction of that year’s complaints naming the engine. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.