2012 Mazda 3 1.6L Petrol · SY12 MJV

The vehicle currently holds a valid MOT, but the history reveals a pattern of reactive rather than proactive maintenance. While it passed the September 2025 test at 102,318 miles, this followed a significant failure just one month prior. The mechanical trend appears unstable, as the car repeatedly addresses critical safety and emissions faults only after failing. The most recent failure for high emissions and an exhaust leak in August 2025 indicates that the engine management or exhaust system may be struggling, despite the subsequent passing inspection. At 102,318 miles, the Mazda 3 averages approximately 7,300 miles per year, which is consistent with typical usage for a vehicle this age. However, the data shows a period of high activity between August 2024 and September 2025, where the car covered over 10,500 miles and underwent three separate tests. This suggests the vehicle has been used regularly in recent months, which likely accelerated the wear on rubber and metal components like the suspension and braking system noted in the advisories. A buyer must scrutinise the structural integrity of the chassis and sub-frame. Records consistently note age-related corrosion on the underside and the rear sub-frame, which, while not yet seriously weakened, persists. The presence of outer sill covers mentioned in the 2025 tests is a concern as they prevent a full inspection of the sills where rust typically develops. Furthermore, the history shows recurring issues with worn anti-roll bar linkages and suspension arm ball joints, suggesting the entire suspension geometry is nearing the end of its functional life. The braking system requires a thorough check due to the high hydrocarbon levels and exhaust leaks recorded in August 2025. The previous failure for thin rear brake pads and the inability to test brake performance indicates that maintenance is often deferred until failure. An inspector should also check for the persistent oil leak noted since 2024 and verify that the offside rear tyre, which previously failed for sidewall damage from running flat, has been replaced with a quality unit.