2009 Ford Fusion 1.4L Diesel · WN59 FCC

A pattern of under-surface corrosion is defining the long-term mechanical outlook for this 2009 Ford Fusion. The most recent test on 24 June 2026 produced a Pass, but the advisory list points clearly toward a vehicle entering its late-stage rust cycle: both rear coil springs are recorded as corroded, the front brake discs on each side show pitting and scoring, and crucially, the fuel pipework itself is now flagged as corroded. A fuel pipe advisory is one of the more serious notes that can appear on an MOT record, as it sits on the failure boundary depending on the examiner's judgement of section thickness. The fact that the same test date also produced a Fail with identical advisories (the failure being driven by a tyre nail rather than the mechanical condition) confirms these are persistent issues rather than a one-off deterioration. Looking further back, a June 2025 Major failure for both front outer CV joint boots and an airbag warning lamp fault represents the most expensive single-event concern in the history, and a 2024 Pass already recorded early corrosion on the front-to-rear brake pipes, meaning the underbody has been progressively deteriorating for at least two test cycles. Against an age of around seventeen years, the recorded mileage of 63,089 equates to a modest annual accumulation of roughly 3,700 miles, which is significantly below typical usage for a car of this vintage. Such low mileage can be read two ways: the engine, clutch, gearbox and drivetrain have experienced comparatively little mechanical fatigue, which is positive, but standing periods encourage their own distinct set of issues. Dry-rotted rubber components, dried-out suspension bushes, seized calipers, and surface corrosion on brake discs and underbody metal all progress more aggressively when a vehicle sits uncovered for long stretches. The MOT history shows a consistent annual testing cadence with no multi-year gaps, which suggests the car has been kept on the road continuously and is unlikely to have suffered a long lay-up, though within-year gaps between Pass and Fail entries in both 2025 and 2026 indicate minor retest activity rather than extended standing. For a prospective buyer, the priority physical inspection must focus on the underbody, given the documented pattern. Place the vehicle on a ramp or use a torch to examine the fuel lines running along the chassis rail and engine bay; corrosion flagged by an examiner typically begins at pipe joints, mounting clips and areas where underbody sealant has been compromised, and any sign of weeping, green staining or flaking metal warrants immediate professional assessment before purchase. The brake pipe advisories from 2024 should be re-examined carefully, as brake line corrosion progresses from surface oxidation to through-wall pitting, and a failure in this area would render the vehicle unroadworthy. Lift each front wheel and check for play in the outer CV joints by rotating and tugging; although the boots were replaced after the 2025 failure, new boots on ageing joints can mask wear, and any clicking on full lock during a test drive suggests the joint itself has been contaminated. Finally, push down firmly on each rear corner and listen for clonking over bumps, which would indicate the corroded coil springs have begun to fracture at their lower coils, and check for uneven pad wear or a pulling sensation under braking that could confirm the pitted front discs have now reached minimum thickness. On the road, expect to feel the consequences of low-mileage use even if the major components check out. Cold starts may produce a brief rattle from the timing chain area, and the first application of the brakes after setting off often reveals whether the calipers have seized slightly through infrequent use, typically presenting as a momentary judder before the pads contact evenly. Listen for a clonking or knocking from the front suspension over speed humps and potholes, as the front subframe and anti-roll bar drop links are common corrosion points on Fusion-era Fords and were not specifically flagged on this record. The steering should self-centre smoothly without any vagueness or knocking through the rack, and the airbag warning lamp must illuminate and extinguish cleanly on ignition, as the 2025 SRS fault could recur if the underlying sensor or connector issue was not fully rectified. Given the cumulative corrosion picture, a pre-purchase inspection by a technician willing to physically handle the brake pipes, fuel lines and suspension components is strongly advisable rather than relying solely on the documented MOT outcome.