2015 Vauxhall Insignia 1.6L Diesel · LT65 ARZ

The Vauxhall Insignia’s most recent MOT, conducted on 2025-12-08 at 92,191 miles, shows a concerning anomaly: the vehicle was tested twice on the same day, once passing and once failing, yet no defects were recorded in either instance. This suggests either an administrative error or a test centre oversight, as no mechanical issues were flagged despite the duplicate entries. The preceding MOT in 2024-12-09 at 87,350 miles passed without fail, indicating a stable period of compliance before the December 2023 failures. The 2023 tests—both at 82,686 miles—mark the only recorded failures in this history, yet the absence of specific defect codes leaves the nature of those rejections unclear. Without detailed advisories or repeated issues, the trend appears artificially disrupted rather than indicative of worsening mechanical conditions. The mileage progression of 92,191 miles over 11 years reflects an average annual distance of approximately 8,381 miles, which is typical for a vehicle of this age. There are no extreme gaps or spikes in usage, though the lack of intermediate MOTs between 2023 and 2024—nearly a full year—raises minor concern about whether the vehicle was driven regularly or stood unused. The consistent mileage increments suggest no forced depreciation through neglect, but the abrupt duplicate tests in December 2025 warrant scrutiny of whether the vehicle was moved between test centres or if the failure was procedural rather than mechanical. Given the absence of specific failure details in the 2023 rejections, a buyer should prioritise an independent inspection of high-wear components that often fail without overt warning. Focus on the suspension system—particularly the rear bushes and coil springs—for excessive play or corrosion, as these are common late-stage failures in this model. The braking system should be thoroughly checked for uneven wear on discs or calipers, as binding brakes were not explicitly ruled out in the 2023 failures. Structural integrity, especially around wheel arches and sills, should be examined for corrosion, particularly if the vehicle has seen wet or salted roads. The absence of advisories in recent tests does not guarantee these areas are sound, so visual and functional checks are essential. While the MOT history lacks clear mechanical red flags, the duplicate test entries demand clarification. A buyer should request the original test reports from 2023 and 2025 to confirm whether the failures were procedural or if critical components were overlooked. If no defects were documented, the vehicle may have passed on technicalities rather than thorough inspection, leaving potential hidden issues. Given the age and mileage, a pre-purchase diagnostic—particularly of suspension, brakes, and underbody corrosion—is strongly advised to avoid inheriting undocumented repairs.