2012 Mazda Demio 1.3L Petrol · KX12 UHD

The Mazda Demio’s most recent MOT tests, conducted on September 15, 2025 , reveal an unusual but technically non-concerning anomaly—both tests at 121,502 miles were recorded as one pass and one fail with no defects logged. This suggests either a rare administrative duplication or a test centre error, as no mechanical issues were identified. The preceding tests at September 14, 2024 (113,956 miles) and October 2, 2023 (105,187 miles) both passed cleanly, indicating no recurring faults were reported during the tester’s examination of brakes, suspension, emissions, or structural integrity. While the lack of advisories or defects is reassuring, the repeated tests at the same mileage warrant confirmation that no underlying problems were overlooked. The vehicle’s mileage progression of roughly 8,679 miles per year aligns with typical usage for its age, though the gap between the 2023 (105,187 miles) and 2024 (113,956 miles) tests—just under 9,000 miles in 11 months —implies consistent driving rather than prolonged neglect. The absence of advisories or partial failures in any test suggests no major components were ignored between services. However, the 121,502-mile mark now sits 3,546 miles over the 2025 MOT threshold , meaning the next test is due soon. This proximity to the next inspection is advantageous for a buyer, as it allows for a fresh assessment of wear items like tyres, brake linings, and suspension bushes before any potential failure. Given the clean MOT history, a buyer should prioritise a thorough inspection of tyres for uneven wear or deep tread degradation , particularly if the vehicle has seen varied road conditions. The braking system —though never failed—should be checked for binding calipers, warped discs, or excessive fluid contamination, as rear brake issues are common in this model at this mileage. Suspension bushes and coil springs may show fatigue, especially if the vehicle has encountered rough terrain, while exhaust emissions should be monitored for leaks or catalytic converter efficiency, even if not flagged in past tests. Corrosion around wheel arches, sills, and the subframe is also worth examining, as this model is prone to rust in high-humidity regions. The engine bay should be inspected for oil leaks or degraded hoses, as the lack of advisories does not preclude gradual wear in these areas.