2015 Fiat 500 1.2L Petrol · OV15 LLR

The 2015 Fiat 500 presents a deteriorating mechanical trend despite passing its most recent MOT on 2025-10-07 at 44,237 miles. Passing a mere week after a failure indicates a rushed repair rather than thorough preventative maintenance. The 2025-09-30 failure at 44,208 miles revealed a fractured offside rear coil spring and a corroded nearside rear coil spring, serious structural faults that were presumably replaced to gain a pass. However, the subsequent pass still carried advisories for a corroded rear sub-frame and a minor rear exhaust gas leak, showing the underlying corrosion issues remain unresolved. Accumulating just 44,237 miles over eleven years equates to roughly 4,000 miles annually, confirming exceptionally light use. The annual mileage dropped noticeably in the most recent period; between September 2024 at 41,353 miles and October 2025 at 44,237 miles, the car covered only 2,884 miles. This recent reduction in usage likely exacerbated the corrosion issues, as short trips prevent moisture from evaporating from the chassis and exhaust components. A prospective buyer must inspect the rear sub-frame closely, as the recurring corrosion advisory from the September 2025 failure at 44,208 miles persists on the October 2025 pass at 44,237 miles. The tester noted the corrosion had not seriously weakened the structure at the last test, but localized rust on a Fiat 500 can rapidly compromise structural integrity if left untreated. Examine the rear exhaust system for the minor gas leak flagged in both September and October 2025, checking for blowing seams or holes that will worsen. Verify the replacement coil springs show no early signs of corrosion, and scrutinize the rear suspension bushes and brake calipers, as standing or lightly used vehicles often suffer from binding calipers and perished rubber.