2015 Vauxhall Insignia 2.0L Diesel · AD15 SHZ

The 2015 Vauxhall Insignia demonstrates a stable and improving maintenance trend, culminating in a clean pass at its most recent test. On 31 July 2025, the vehicle passed at 106,112 miles with zero defects recorded. Curiously, an earlier test on the exact same day and mileage resulted in a failure, yet the record lists no specific defects for that failure. This anomaly points to an administrative error or a procedural issue rather than a sudden mechanical collapse, particularly given the immediate clean pass that followed. The absence of any advisories or defects across multiple consecutive tests indicates a well-maintained machine with no recurring mechanical faults. The mileage accumulation aligns closely with the vehicle's age, reflecting typical usage patterns. Between the September 2021 test at 84,528 miles and the August 2023 test at 97,452 miles, the Insignia covered 12,924 miles over two years. However, the recent pace has slowed; from August 2023 to July 2025, the odometer advanced just 8,660 miles. This drop to roughly 4,330 miles per year suggests lighter recent use or extended periods of inactivity. The two-year gap between the 2021 and 2023 tests is notable, but the recorded mileage remains consistent with the timeline, ruling out any suspicion of clocking. Despite the pristine MOT record, a physical inspection remains essential for an 11-year-old Insignia with over 106,000 miles. Buyers should scrutinise the structural integrity of the underbody and suspension mounts, paying close attention to the condition of the suspension bushes and coil springs, which commonly deteriorate on this platform. Brake discs and pads require close examination for uneven wear or lipping, especially given the recent drop in annual mileage, which can lead to surface corrosion on standing vehicles. Inspect the exhaust system for leaks or corrosion, and verify the condition of the clutch and drivetrain components, as these high-wear items rarely trigger MOT advisories until they fail completely.