2011 Vauxhall Insignia 2.0L Diesel · FN11 WMZ

The most recent MOT, dated 21 July 2026, was passed but returned several advisories covering rear upper suspension arm bush wear, a rear tyre close to the legal tread limit, a modest front‑engine oil leak and mild corrosion of the rear sub‑frame. Over the last five years the record shows a clear deterioration: two separate failures for fractured rear coil springs in 2023 and 2024, recurring suspension bush wear, progressive sub‑frame corrosion and persistent oil‑leak advisories. While the vehicle has managed to pass each test, the pattern indicates worsening wear rather than a stable or improving maintenance regime. At 146,681 mi the car averages roughly 9,800 mi per year, which is typical for a fifteen‑year‑old family hatchback. There are no obvious long gaps in recorded mileage, suggesting the car has been driven regularly rather than stored for extended periods. This level of use places normal wear on consumables such as tyres, brakes and suspension components, but it also means that any deferred maintenance will have had ample mileage to manifest as the faults now appearing on the MOT reports. A prospective buyer should give particular attention to the rear suspension. Verify whether the fractured coil springs on both sides have been replaced and inspect the condition of the upper and outer arm bushes, looking for excessive play, clunking noises over bumps or a feeling of looseness in the rear corner. Examine the rear sub‑frame for any signs of rust progression beyond the mild corrosion noted, especially around mounting points, and confirm that any corrosion repair has been carried out to a structural standard. The front oil leak, noted repeatedly, should be traced to its source – a valve‑cover gasket, oil filter housing or oil pan – and the leak should be quantified; a persistent leak can lead to reduced oil level, increased engine wear and possible fire risk if oil contacts hot components. During a test drive, listen for any abnormal engine noises, monitor for oil stains on the under‑tray, and check that the steering feels solid without excessive play, as the power‑steering hose was flagged for slight corrosion in 2021. Given the vehicle’s age, time‑related checks are essential. Inspect all four tyres for side‑wall cracking, dry rot and uneven tread wear, especially the off‑side rear tyre that was already near the legal limit. Verify the condition of the 12 V battery, as prolonged standing can cause sulphation; a load test or a simple voltage check after a short drive will reveal its health. Confirm that brake fluid has been changed within the last two years and that the discs are free of deep scoring or rust‑induced glazing. Finally, review the service book for evidence of regular oil changes, coolant flushes and any documented replacement of the rear coil springs or suspension bushes, as these records will give confidence that the known issues have been properly addressed before purchase.