2015 KIA RIO 1.1L Diesel · CU15 OUB

The vehicle remains roadworthy, but the maintenance history shows a stable trend of structural degradation. The most recent test in May 2026 at 48,628 miles identified persistent corrosion on both the front and rear sub-frames. This specific issue was also flagged during the 2025 and 2024 tests, and while the tester noted the components were not yet seriously weakened, the recurrence of this fault across three consecutive years indicates that rust is progressing without intervention or preventative treatment. The mileage profile is notably low for an eleven-year-old vehicle, averaging approximately 4,400 miles per year. There is a visible gap in recorded data between April 2021 at 26,946 miles and December 2022 at 37,744 miles, during which the car covered over 10,000 miles in twenty months. This low annual usage often explains the delayed wear on mechanical components, but it also correlates with accelerated oxidation on metal surfaces, as evidenced by the pitted brake discs noted in the 2022 inspection. A buyer must conduct a close physical inspection of the sub-frames to determine the depth of the surface rust and check for any structural thinning or scaling. The presence of plastic underside floor covers mentioned in 2024 suggests an attempt to shield or protect the area, but this does not stop underlying corrosion. Furthermore, the state of the braking system requires verification, as the 2022 record highlighted worn and pitted discs which may require replacement soon given the age of the components since that test.