2009 Fiat 500 1.2L Petrol · LL59 OPG

A pattern of emerging structural and suspension corrosion defines the mechanical story of this Fiat 500, with both rear coil springs flagged for surface corrosion on the most recent test on 18 November 2025 alongside a prior stop lamp failure that caused an outright MOT fail the day before. The earlier record between 2019 and 2023 was notably clean, with three consecutive passes recording no advisories at all, but the 2024 test introduced a rear subframe corrosion advisory, and the 2025 test escalated matters by flagging both rear springs as corroded while also retaining the headlamp lens defects that were present at the failure. The 2022 entry already pointed to front suspension arm pins and bushes beginning to wear, and although those were not repeated in subsequent years, the appearance of rear spring corrosion now suggests that age-related degradation of load-bearing and chassis-related components is becoming an active theme rather than an isolated observation. This is a vehicle whose MOT history has shifted from a clean sheet to a series of corrosion and wear advisories within a relatively short window. The recorded mileage of 30,459 miles against a 17-year vehicle age works out at approximately 1,792 miles annually, which is substantially below typical usage for a city car of this era. There are no unusual mileage gaps recorded within the MOT history provided, and the test dates run consistently at roughly annual intervals from 2019 through 2025, indicating the car has remained in regular use and on the road rather than being laid up for extended stretches. Mechanically, lower annual mileage reduces wear on high-friction items such as clutch, brake pads and discs, and engine internal components, but it also tends to expose rubber and polymer items to prolonged ageing and standing-time corrosion, which is consistent with the spring corrosion, subframe rust, and deteriorated suspension ball joint dust covers now appearing in the record. Oil seals, coolant hoses, brake fluid, and the 12V battery will have aged through calendar years rather than usage cycles, so a prospective buyer should treat age-sensitive items as a higher inspection priority than the odometer might otherwise suggest. From the specific advisories raised, the rear coil spring corrosion flagged on both sides warrants close attention on a physical inspection; surface corrosion can progress to pitting and ultimately coil fracture, particularly on a small car carrying occasional rear loads. On a test drive, listen for any knocking or clonking from the rear suspension over uneven surfaces, and check for visible flaking, orange weeping, or section loss on the spring coils themselves when viewed from underneath. The 2022 advisories on front suspension arm pins and bushes, combined with the deteriorated ball joint dust covers, suggest the front lower wishbones are approaching replacement territory; listen for clonking over speed bumps, clatter over potholes, and any wandering from the front end under braking. Also check for uneven tyre wear across the front axle, which can indicate worn bushes allowing camber or toe variation. The 2024 rear subframe corrosion advisory should not be dismissed as cosmetic; subframes on small Fiat 500s of this generation are known to suffer at mounting points and seams, and although the examiner judged it not seriously weakened at the time, corrosion of this nature tends to progress between tests. On the ramp or over a pit, look closely at the subframe-to-body mounting areas, spring seats, and any boxed sections for swelling, blistering paint, or daylight visible through perforations. The recurring headlamp lens defects on both sides indicate UV-driven crazing or moisture ingress within the headlamp assemblies; check for condensation inside the units and ensure both main and dipped beam patterns remain sharp and symmetrical, as clouded lenses are often a failure trigger at the next test. Finally, given that the stop lamp failure caused the November 2025 fail, confirm all rear brake lights illuminate correctly under both light and heavy brake pedal inputs, as intermittent switch faults are common on ageing Fiat 500s and could otherwise present an immediate retest risk.