2020 Mazda 3 2.0L Petrol · CV70 CFY

The 2020 MAZDA 3 has demonstrated solid roadworthiness through four consecutive passes between July 2023 and June 2025, each recording zero defects and confirming continued reliability over the preceding three-year period. However, the trajectory shifted abruptly at the end of 2026, with two successive MOT attempts on 1 July 2026 resulting in one failure and one passing result, marking the first repeated failure in the vehicle's recent history. The latest test outcome remains a failure, specifically citing headlamp aim being too low on both front lights, while the same day also carried a rear tyre advisory noting slight damage or cracking across both tyres, indicating a dual-advisory pattern that warrants immediate attention. With 49,482 miles recorded on a 2020 model, the vehicle accumulates approximately 8,247 miles annually, a rate that aligns with typical usage for its age and does not suggest abnormal acceleration in wear across major systems. The six-year-old car has maintained consistent mileage growth since its introduction, with the longest interval between tests spanning from mid-2025 to mid-2026—just over eleven months—which implies the adverse conditions surfaced relatively quickly rather than through gradual degradation. This steady accumulation means the engine, transmission, and primary drivetrain have not experienced extreme mileage stress, but the concurrent tyre and lighting failures indicate localized system issues that predate the overall mileage increase. The headlamp aim failure manifests as misaligned beams that may strike pedestrians or cause glare during night driving, particularly when approaching intersections or curves where beam spread becomes critical; on a test drive, the buyer should verify that both front headlamps illuminate uniformly and without excessive drop-off toward the ground. The rear tyre advisory describes cracking along the tread edges and compromised tread depth, which can develop from road impact, edge loading, or underlying subframe movement; inspecting the rear tyres physically will reveal splitting or chipping that should not be present on a vehicle with only moderate annual mileage. Both issues require professional correction—headlamp alignment typically involves adjusting the mounting hardware and lens tilt, while rear tyre damage necessitates replacement of the affected wheels and possibly resurfacing the subframe if structural fatigue is suspected. Beyond the flagged items, the absence of advisories on braking, cooling, or suspension systems suggests those areas have remained within acceptable limits, yet the simultaneous occurrence of lighting and tyre problems hints at possible shared causes such as prior suspension work affecting light attachment points or general wear patterns that concentrate at contact patches. Before committing, the prospective buyer should arrange a dedicated test drive focusing on low-speed handling to confirm even headlamp distribution and conduct a visual inspection of rear tyres for any crack propagation or embedded debris that could affect grip. Given the recent failures, addressing the headlamp alignment and replacing the rear tyres would be prudent steps to restore full roadworthiness before considering this vehicle further.