2009 Vauxhall Insignia 2.0L Diesel · MA59 FSP

The defining characteristic of this Insignia's MOT history is a persistent and worsening pattern of structural corrosion affecting the front and rear subframes, suspension coil springs, and surrounding components, recorded as advisories across five consecutive tests from 2022 through 2026. The 2026 test on 18 June recorded a pass, but only alongside a subframe corrosion advisory at both front and rear, heavily oxidised headlamp lenses, and a deteriorating offside front CV boot classified as a Minor defect. Of greater concern is the broader trend: the 2023 entry already flagged subframe mounting corrosion considered noteworthy, and by 2024 this had escalated to advisories covering the connecting suspension arms, suggesting the corrosion is progressing outward from the subframes into the pivot and bush mounting points. Two failures in the three-year window further confirm that this vehicle is not in a state of stable roadworthiness. In July 2025 the offside front inner tyre was deemed Dangerous due to exposed ply or cords, a nearside rear tyre of a different size was fitted to the same axle using a spare, and the front and rear subframes were again flagged. The July 2023 failure saw a nearside rear shock absorber condemned for a serious fluid leak, indicating that the dampers on this car have already required replacement, while the July 2022 failure recorded both front tyres with tread depth below the legal 1.6mm minimum, classed as Dangerous. Against an age of roughly seventeen years, the recorded 150,822 miles equates to approximately 8,872 miles annually, broadly in line with typical usage for the period and showing no obvious signs of extended standing or unusually low accumulation. Test frequency has been consistent on an annual basis from 2022 onwards, with no multi-year gaps that would suggest the vehicle was off the road, which is relevant because the level of corrosion present is therefore not the product of long-term abandonment but rather of active service through conditions that have oxidised the underbody. Mileage progression between tests is steady and offers no evidence of tampering, but the volume of miles already accumulated places meaningful wear on the consumable mechanical systems irrespective of the corrosion findings. Brake discs and pads, the steering rack gaiters, the engine mounts, and the dual-mass flywheel or automatic transmission internals will all have absorbed substantial fatigue cycles at this odometer reading. A prospective buyer should treat the recurring subframe corrosion advisories as the central area of concern and budget for eventual structural rectification rather than dismissing them as cosmetic. Subframe corrosion of the type flagged, particularly where it extends to connecting suspension arms as noted in 2024 and 2025, can progress rapidly once the protective coating is breached, so a careful inspection on a ramp is essential, paying close attention to the mounting pockets, the welds, and the suspension arm attachment points for any perforation or flaking that has advanced beyond surface scale. On a test drive, listen for clonks or shudders from the front end over uneven surfaces, which would indicate worn subframe bushes or deteriorated arm joints, and feel for any vagueness in the steering or a tendency to wander, both of which can accompany compromised subframe mounting integrity. The 2023 shock absorber fluid leak failure means the rear dampers have already been replaced at least once, so check for evidence of recent renewal and confirm that the offside rear unit in particular is dry, as a reoccurrence would be a serious concern. The recurring rear coil spring corrosion advisories, now present on four separate occasions, point to active oxidisation of the springs themselves; listen for any rattles from the rear over bumps, which could indicate a fractured coil, and inspect the spring pans closely for thinning. The CV boot defect noted as a Minor in both 2024 and 2026 demands attention, as a severely deteriorated boot will allow grease to escape and contamination to enter, leading to eventual joint failure. On the road, any clicking from the front wheels during full-lock turns would indicate the joint has already been compromised and requires urgent replacement. The headlamp lens degradation flagged in 2026 will progressively reduce illumination and may fail a future test once light output becomes seriously reduced, so confirm that both headlamps still provide adequate beam pattern and intensity for night driving. Tyre wear should also be scrutinised given the two recent tyre failures, one of which was categorised as Dangerous; uneven inner or outer edge wear on the front pair may suggest worn suspension bushes or alignment issues linked to the subframe corrosion, while the 2025 advisory recording inner-edge wear on multiple tyres is consistent with tracking that has drifted as the suspension geometry has been affected. Finally, although the exhaust, braking system, and emissions have not been flagged in recent tests, a thorough service history independent of the MOT record should be obtained, particularly evidence of brake fluid renewal, cambelt replacement given the 150,822 miles covered, and any work carried out to the subframes to arrest the corrosion before it reaches a structurally significant level.