2015 Vauxhall Insignia 2.0L Diesel · K666 AAY

The most recent MOT, dated 9 March 2026, resulted in a failure. The test recorded dangerous rear brake pads on the off‑side that were measured at less than 1.5 mm and advisories for slight damage or perishing on both rear tyres. Earlier in the same year the vehicle had passed a MOT with no defects, but the 2025 test already flagged the near‑side rear tyre for perishing. The pattern shows a gradual decline: the tyre condition has been noted for two consecutive years and the brake wear has now reached a safety‑critical level, indicating that the overall maintenance trend is worsening rather than stable. With 58,125 miles on the clock after eleven years, the Insignia averages roughly 5,300 miles per annum, well below the typical UK average of 7‑10 k miles per year. Such low utilisation often points to periods of limited use or prolonged storage. While low mileage reduces the cumulative wear on engine, transmission and suspension components, it also raises the likelihood of age‑related degradation such as tyre perishing, battery sulphation, and corrosion on suspension bushings and brake hardware that can develop while the car sits idle. Prospective buyers should give the rear tyre set immediate attention. Inspect the sidewalls for cracking, dry rot or any bulges, and measure tread depth across the width; a depth below 3 mm or uneven wear suggests that replacement is required. During a test drive listen for any thumping or vibration that could indicate a tyre that is losing structural integrity. The rear brake pads must be replaced without delay; pads under 1.5 mm are unsafe and the associated discs should be examined for scoring, rust or glazing. A firm, noise‑free pedal with consistent braking response is essential – any pulsation, shudder or pull to one side warrants further inspection of the calipers and disc condition. Given the vehicle’s age and low‑mileage profile, a thorough visual and tactile check of age‑related items is advisable. Examine the 12‑volt battery for terminal corrosion, conduct a load test, and verify that the electrolyte level is adequate if it is a conventional lead‑acid type. Inspect all fluid reservoirs – brake fluid should be replaced at least every two years, and coolant should be clear and at the correct level. Look for signs of corrosion on the chassis, wheel arches and suspension mounting points, and check that the suspension bushes and coil springs are free of excessive play or creaking noises when the car is pushed over bumps. Finally, confirm that the service book contains regular oil changes, timing‑chain inspections (the 2015 Insignia uses a chain rather than a belt) and any other manufacturer‑recommended service items, as a complete service history will give confidence that the car has been kept in good mechanical order despite its limited use.