2008 Mazda 2 1.5L Petrol · X21 FAN

Corrosion is the defining mechanical story of this 2008 Mazda 2, and it is a theme that has been escalating rather than resolving. Rust was first noted in 2021 as surface corrosion on the floorpan, a corroded front subframe and rear axle, and by 2023 the underside and rear axle beam corrosion were being flagged repeatedly. In June 2024 this progressed to a serious failure: a rear suspension arm corroded and seriously weakened, with both rear suspension mounting areas also recorded as corroded, alongside a failed parking brake and a track rod end with excessive play. The car did pass its most recent test on 17 November 2025 with only minor lamp defects and an advisory that the underside has been painted, but that painting note warrants caution, as fresh underseal can conceal as much as it protects. The overall trend is one of an ageing small car whose structural and suspension corrosion has required real repair work, not a clean-record example. At 101,655 miles over roughly 18 years, the car has averaged about 5,650 miles per year, which is low for its age. Testing has been consistent with no significant gaps, so the mileage appears genuine and the usage pattern suggests regular but light use. Low annual mileage on a car of this type typically means less wear on the engine and drivetrain, but it does not slow corrosion, which is time and exposure driven, and the record bears this out: the failures here have been rust, leaks and wear items rather than high-mileage drivetrain problems. The 2023 failures for an excessive engine sump oil leak and a major exhaust leak, both rectified within days to secure a pass, show that age-related sealing and exhaust deterioration has also featured. A prospective buyer should prioritise a thorough structural inspection before anything else. The rear suspension arm that failed in 2024 should be checked to confirm it was replaced rather than patched, and both rear suspension mounting areas, the rear axle beam, the front subframe and the floorpan need close examination, ideally on a ramp, probing for soft or flaking metal. Given the November 2025 advisory that the underside has been painted, ask what was done and why, and be wary of fresh underseal hiding deteriorated metal around the rear mounting points. The parking brake failure in 2024 means the rear brake mechanism and cables deserve attention; on a test drive, confirm the handbrake holds firmly on an incline and that the rear brakes do not drag or stick after release. The steering and running gear also merit targeted checks. Track rod ends have appeared repeatedly, with slight play noted in 2021 and 2023 escalating to excessive play and failure in 2024, so feel for any vagueness or knocking through the steering over uneven surfaces and listen for clonks on full lock. Front brake pads were flagged as wearing thin across three consecutive tests from 2022 to 2023, so verify they were renewed and check for pedal judder or pulling under braking. The previous sump oil leak justifies a look beneath the engine for fresh weeping, and the 2023 exhaust leak means the system should be listened to for blowing at start-up. Finally, the recurring minor lamp defects, including the registration plate lamp noted again in 2025, are trivial in isolation but worth a quick walk-around check. This is a usable low-mileage example whose value hinges almost entirely on the current state of its underside, so an independent inspection with the car lifted is strongly advised before purchase.