2008 Mazda 3 1.6L Petrol · SP08 OZN

The 2008 Mazda 3 is currently unroadworthy, having failed its most recent MOT on 16 May 2026 at 125,489 miles. The maintenance trend is clearly worsening. That test recorded multiple serious structural failures, including excessive corrosion to the nearside rear and offside front chassis mountings within 30cm of body mountings, a corroded nearside rear structure where rigidity is significantly reduced, and a major exhaust leak. A damaged offside front steering rack gaiter was also flagged. These are not minor cosmetic issues; they represent a marked deterioration in structural integrity compared with earlier tests. The vehicle has covered roughly 13,500 miles in the two years between the January 2025 test at 111,976 miles and the May 2026 failure at 125,489 miles, which is broadly consistent with its lifetime average of around 6,972 miles per year. The mileage progression from 100,911 miles in January 2024 to 111,976 miles in January 2025 shows a similar steady rate of use. There are no suspicious gaps or sudden drops, suggesting the car has been driven regularly rather than sitting unused for long periods. The corrosion history is the dominant concern. Subframe and suspension mounting point corrosion appeared as early as January 2024 at 100,911 miles, when the tester noted underside corrosion and holed front floors. By January 2025 at 111,976 miles, both rear coil springs were corroded, subframe mountings were corroded, and the exhaust was flagged for corrosion. These advisories and failures have escalated into the serious structural defects recorded in May 2026. A buyer should have the underside, subframes, suspension mounting points, and inner wing structures inspected by a qualified bodywork specialist before any purchase. The nearside rear chassis area in particular warrants close examination given the severity of the latest failure. Beyond the structural concerns, the braking system has shown recurring issues. The January 2024 test flagged worn and pitted rear brake discs, a parking brake below minimum efficiency, rear brake imbalance, and a lagging offside rear service brake. These were not re-tested before the 2026 failure, so their current condition is unknown. The steering rack gaiter failure in May 2026 also introduces a risk of dirt ingress damaging the rack itself. Any in-person inspection should include a thorough check of all brake components, the steering rack for play or damage, and a full exhaust system assessment given the major leak recorded at the most recent test.