2014 Vauxhall Insignia 2.0L Diesel · FN14 APY

A striking feature of this Insignia's MOT history is the absence of any recorded advisories, failures, or component-specific defects across every test entry, yet the record also shows a consistent pattern of paired pass and fail results on identical dates in 2024 and 2025. Each annual test in 2023, 2024, and 2025 produced a clean pass with no defects recorded, suggesting the vehicle has been presented in good mechanical condition at the point of inspection. The duplicate entries on the same day almost certainly reflect administrative corrections or retests where the initial presentation failed on a procedural matter not related to the vehicle's mechanical condition, such as tyre or emissions preparation, rather than a genuine mechanical deterioration between tests. Overall, the roadworthiness trend is one of stability, with no progressive advisories indicating component wear or developing corrosion. Covering 158,446 miles over twelve years places this Insignia at roughly 13,200 miles per year, which is notably above average for a privately used family car of this age. There are no obvious gaps in the testing history beyond the standard annual cadence, and no evidence of extended lay-up periods that would raise concerns about seized brakes, perished coolant hoses, or deteriorated fuel system components. The continuous high utilisation profile does, however, mean that major mechanical assemblies including the timing chain, clutch, dual-mass flywheel (if diesel), turbocharger, and suspension subframes have all been worked hard throughout their service life. Given the mileage, even components that have never triggered an advisory may now be approaching the wear thresholds that typically appear on MOT inspections for high-mileage vehicles in this class. From a buyer's perspective, the clean advisory history means the MOT data alone cannot pinpoint weak spots, so a physical inspection and test drive should focus on the areas most prone to wear on a high-mileage Insignia. Pay close attention to the front suspension, particularly the lower control arm bushes, anti-roll bar drop links, and front subframe rear mounting bushes, listening for clonks or knocking over uneven road surfaces and checking for uneven tyre wear across the front axle that would indicate geometry or bush deterioration. On the test drive, feel for any vagueness in the steering, wandering at speed, or vibration through the wheel under braking, as well as any pulling to one side that could suggest worn front strut top mounts or binding brake calipers, the latter being a known wear item on this model. Inspect the braking system thoroughly, looking for corroded flexible brake hoses, seized caliper slide pins, and scored or lipped front discs, as high mileage combined with urban cycle use tends to produce uneven disc wear that only manifests as a pedal shudder or pulsation under load. For diesel variants, check for oil seepage around the turbocharger oil feed pipes, intercooler hoses, and the EGR cooler area, as well as any excessive smoke from the exhaust on start-up or under acceleration that could indicate turbo wear or injector leak-back. Verify that the cooling system has been actively maintained, as the timing chain cover and water pump seals on the 2.0 CDTI are known to weep at high mileage. Finally, examine the underbody and subframe for any surface corrosion that has not yet progressed to structural significance, and confirm that the timing chain has evidence of recent replacement or at least an up-to-date service history, as this is the single most costly preventative item on a high-mileage Insignia of this vintage.