2011 Mazda 3 1.6L Petrol · MT11 SNJ

The most recent MOT, conducted on 13 December 2025, resulted in a failure. The test recorded dangerous tread depth on all four tyres, a non‑functioning nearside front position lamp and a rear registration plate lamp that does not illuminate with the position lamps, together with the usual headlamp product advisories. Earlier MOTs from 2019 to 2022 were clean, while 2023 and 2024 introduced a series of advisories relating to headlamp haze, thin front and rear brake pads and a parking‑brake lever that required extra effort. The progression from clean passes to multiple advisories and now to outright failures indicates a deteriorating maintenance trend that should be addressed promptly. At 119,771 miles the vehicle averages just under 8,000 miles per year over its 15‑year life, which sits squarely within normal UK usage patterns. The mileage record shows no large unexplained gaps, suggesting the car has been driven consistently rather than sitting idle for extended periods. This level of cumulative distance is sufficient to have consumed the primary wear items – tyres, brake pads and likely brake discs – and to have placed the suspension bushes, engine mounts and drivetrain components into the later stages of their service lives. A prospective buyer should treat the tyre situation as the most urgent item: all four tyres must be inspected for tread depth, sidewall condition and uniform wear, and they will need to be replaced immediately to meet legal requirements and to restore safe handling. While the vehicle is on the road, watch for any thumping, vibration or pulling to one side that could indicate worn suspension bushes, misaligned wheels or uneven tyre wear. The brake system warrants close scrutiny; the advisory notes thin front and rear pads, so the discs should be measured for thickness and surface condition, and a full pad and disc replacement is likely required within the next few thousand miles. Test the parking brake for a firm hold; a lever that needs extra effort may point to a stretched cable or worn rear drum/mechanism that will need adjustment or refurbishment. Verify that all external lamps operate correctly – replace the nearside front position lamp and rectify the rear plate lamp wiring or bulb – and have the headlamp lenses cleaned or the units replaced if the product on the glass is affecting beam quality. Given the car’s age, additional time‑based checks are advisable even if the MOT record is otherwise clean. Inspect the 12‑volt battery for sulphation and verify it holds charge under load; a battery older than five years often requires replacement. Examine the coolant, brake fluid and power‑steering fluid for colour and contamination, and consider a complete fluid change if service stamps are missing or the last change predates the typical two‑year interval. Look for corrosion on the chassis, especially around the wheel arches and under‑body, and ensure the exhaust system is free of cracks or excessive rust. Finally, confirm that the service book contains regular oil changes and that the timing chain (or belt, depending on engine specification) has been inspected according to Mazda’s service schedule, as failure of these items can lead to costly engine damage.