2007 Ford Fiesta 1.2L Petrol · YS57 ATU

A pattern of structural corrosion centred on the rear axle mounting points is the defining mechanical concern in this vehicle's MOT history, and it has surfaced repeatedly rather than resolving between tests. The most recent assessment on 26 July 2025 recorded a pass with no advisories, which on the surface appears encouraging, but the wider chronology reveals a chassis that has been flagged at both nearside rear suspension mountings as excessively corroded with significantly reduced structural strength. These major failures appeared in September 2023 and September 2022, meaning the car has presented the same fundamental integrity issue across two consecutive tests, and the interim pass of 10 August 2024 carried no advisory to confirm any remedial welding or subframe repair had been carried out. A buyer must therefore not treat the clean 2025 result as evidence the rust has been resolved, because MOT testing does not retrospectively guarantee prior advisories have been attended to, and the nearside rear chassis rail close to the axle mount is a load-bearing area where hidden corrosion can progress between tests without immediately affecting the result. Against an age of nineteen years, the recorded odometer reading of 100,106 miles equates to an annual accumulation of roughly 5,269 miles, which is low and consistent with a vehicle that has either covered short journeys predominantly or spent extended periods off the road. Lower annual mileage of this kind does reduce wear on internal drivetrain components, but it also tends to accelerate external corrosion through infrequent use, particularly in areas exposed to road salt and moisture, and it can promote deterioration of rubber components, brake discs, and underbody sealing. The MOT testing cadence is broadly annual with no multi-year gaps, so the vehicle has not been declared SORN for extended lay-up periods within the recorded window, which limits the concerns associated with prolonged standing. None the less, the combination of low mileage and recurring rear structural corrosion strongly indicates the car has spent considerable time operating in conditions conducive to underbody attack, and a prospective buyer should not assume the chassis is sound merely because the car is not high mileage. Specific attention should be directed at the nearside rear suspension and chassis area during any physical inspection, because this is where the two major structural failures originated and the absence of recent advisories does not eliminate ongoing corrosion behind covers or within boxed sections. The vehicle should be raised on a ramp if possible, with particular focus on the inner chassis rail adjacent to the nearside rear axle mounting, the fuel filter union on the nearside rear fuel line which was previously recorded as leaking, and the lower suspension component mounting prescribed area, all of which are accessible from beneath. On a test drive, listen for any clonking or knocking from the rear over uneven surfaces, which would suggest worn rear suspension bushes or a deteriorated mounting, and feel for any vagueness or wander in the steering, given that the nearside front inner steering ball joint was replaced under the 2022 failure for excessive play. The nearside front suspension arm ball joint dust cover was noted as severely deteriorated in 2021, so a clonk on full lock or over speed bumps at the front should be treated as a likely recurrence. The 2025 headlamp dipped beam failure on the nearside front should also be treated as a minor but recurring maintenance concern, because headlamp bulb and connector faults on a nineteen year old vehicle can quickly resurface, and an inoperative bulb at the next test would result in another straightforward but avoidable failure. The nearside front inner tyre edge wear advisory noted in 2022, combined with the steering ball joint failure recorded at the same test, points to geometry that should be rechecked after any front suspension work, and uneven tyre wear on the inner or outer shoulder of the nearside front during inspection would suggest the repair was incomplete or a new component is already wearing prematurely. With rear structural corrosion being the dominant risk, any signs of repair plating, fresh underseal, or paint over the nearside rear chassis should be questioned, as cosmetic concealment of advanced corrosion in a load-bearing area is a known concern and would warrant a separate structural survey before purchase.