2012 Vauxhall Insignia 1.8L Petrol · LS12 HDC

The most recent MOT on 6 January 2026 records a pass, but it is accompanied by a failure on the same day for dangerous front‑tyre tread depth on both sides, a major fault for a non‑functioning dipped‑beam headlamp and a safety‑related registration‑plate lamp defect. Earlier in the year the vehicle also failed for a MIL (engine warning) fault and an oil‑leak advisory, while the previous three years show a pattern of advisories for thin front brake pads, tyre wear on the front and rear, and a persistent minor oil leak. The overall maintenance trend is therefore deteriorating, with safety‑critical defects now emerging after a period of mainly advisory items. With 80,784 mi recorded on a 2012 model the average annual mileage is roughly 5,800 mi, well below the typical 10‑12 000 mi per year for a vehicle of this age. Such low utilisation often indicates periods of limited use or prolonged storage, which can accelerate age‑related degradation of rubber components, battery plates and seals even though the mechanical wear from distance is modest. The relatively low mileage does not offset the need to examine wear items that are driven by time rather than distance. Prospective buyers should give particular attention to the front tyres, which were recorded as being below the legal 1.6 mm tread depth at the latest test. Inspect the tread pattern for uneven wear, edge wear or cupping and verify that the tyres are not more than six years old, as rubber perishing can occur even on low‑mileage wheels. The off‑side rear tyre was noted as slightly damaged or cracking, so a visual check for sidewall cracks, dry rot or bulges is essential, and any replacement should be to a matched set. The oil leak, flagged repeatedly, should be traced to its source – likely a valve‑cover gasket or oil filter housing – and the condition of surrounding hoses and the oil pan examined for corrosion; a persistent leak can lead to low oil level, overheating and accelerated engine wear. The MIL fault recorded in 2023 suggests an underlying engine management issue; a diagnostic scan is advisable to confirm whether it is a simple sensor fault or a more serious emission‑control problem. Verify that both front headlamps operate on dipped beam, that the registration‑plate lamps illuminate correctly, and that the front brake pads have been replaced or are still within safe thickness, as thin pads can cause brake fade and increased rotor wear. Given the vehicle’s age and low usage, additional time‑based checks are prudent. Examine the 12‑volt battery for sulphation, check the electrolyte level if it is a conventional type, and confirm that the terminals are clean and tight; a battery that has sat for long periods may require replacement. Inspect the suspension bushings, ball joints and shock absorbers for any signs of corrosion, cracking or excessive play, especially after standing idle for extended times. Drain and replace the brake fluid if it has not been serviced in the last two years, as moisture absorption can reduce boiling point and affect braking performance. Finally, review the service book for evidence of regular oil and filter changes, coolant flushes and timing‑belt (or chain) inspections, ensuring that all scheduled maintenance has been adhered to despite the low mileage.