2010 Ford Fiesta 1.2L Petrol · SY10 ACF

A sixteen-year-old Ford Fiesta carrying 80,210 miles presents a roadworthiness profile dominated by progressive structural and chassis corrosion rather than mileage-driven wear. The most recent MOT on 13 April 2026 returned a pass, but every advisory listed points to the same underlying theme: the underside of this vehicle is oxidising. Both rear coil springs are recorded as corroded, the front sub-frame is noted as corroded though not seriously weakened, and both rear tyres show perishing. This is consistent with the pattern seen across the entire test history, where front and rear sub-frame corrosion, brake pipe corrosion, and rear coil spring corrosion have appeared repeatedly since at least February 2024. The single failure recorded, on 3 March 2026, compounds the picture: a fractured nearside front coil spring, a wiper that failed to clear the windscreen effectively, and an exhaust lambda sensor reading outside specified limits at fast idle were all flagged as major defects, while the rear sub-frame was simultaneously recorded as corroded. The overall trajectory is one of worsening structural condition rather than stable roadworthiness, with each annual test adding new advisories to a growing list of corrosion-related concerns. Annual mileage on this Fiesta averages around 5,013 miles, which is low for a vehicle of its age and suggests extended periods of either light use or standing. The MOT records themselves reveal irregular testing activity, with gaps between tests that indicate it has not been examined every year of its life, and the clustering of tests in early 2025 and early 2026 suggests the car may have been off the road or used sparingly prior to that. Low annual mileage on a sixteen-year-old vehicle typically translates to fewer miles on wear items such as clutches, brake pads, and engine internals, but it also allows standing water, road salt, and moisture to act on the underside for prolonged periods between longer runs. This is particularly relevant here, because the corrosion advisories on sub-frames, brake pipes, and coil springs are exactly the type of deterioration associated with low-use, short-journey operation in damp UK conditions where components do not get the benefit of sustained drying heat. For a prospective buyer, the priority is a thorough physical examination of the chassis and underside, ideally on a ramp, because the MOT advisories only record what is visible from below during a standardised test. The front and rear sub-frames should be tapped with a screwdriver or knuckles to check for flaking, holing, or perforation beyond surface rust, particularly around mounting points and welded joints. The front and rear brake pipes, noted as corroded and covered in grease on multiple occasions, should be inspected along their full length for swelling, pitting, or active seepage, as the application of grease is often a temporary cosmetic measure rather than a structural repair. On the road, listen for clonking or knocking from the front suspension over bumps, which would indicate worn anti-roll bar linkage ball joints or suspension arm ball joints as flagged in the March 2025 advisories, and pay particular attention to any steering vagueness, pulling to one side under braking, or a harsh, unsettled ride that could point to the fractured nearside front coil spring having been replaced or, if a recent repair, to the quality of that replacement. The exhaust lambda sensor failure recorded in March 2026 warrants its own verification, as an out-of-specification reading at fast idle can indicate a failing sensor, a vacuum leak, or catalytic converter deterioration, any of which would merit a diagnostic read before purchase. Test the wipers in both wet and dry conditions to confirm full sweep coverage, and inspect both rear tyres for sidewall cracking given the perishing advisories on the most recent test. Finally, verify that the fractured front coil spring and worn suspension ball joint recorded as major defects in 2025 and 2026 have been replaced with documented, quality parts, and ask for invoices to confirm the work was carried out, as the recurrence of suspension-related advisories on both front and rear axles suggests this Fiesta will demand continued chassis and brake line attention regardless of any remedial work already performed.