2015 Mazda 3 2.2L Diesel · ET15 UOA

Suspension wear dominates the MOT history, highlighted by two major failures – an excessively worn nearside front lower arm ball joint in October 2025 and a severely deteriorated off‑side front track‑rod end dust‑cover in October 2022 – indicating that the front suspension geometry has already required remedial work. The latest test on 30 October 2025 passed, but it still carried an advisory for a slightly damaged off‑side rear tyre, echoing a similar note from 2020, which suggests that tyre condition remains a recurring concern. At 142,228 miles the car averages roughly 12,900 miles per year, a mileage level that exceeds typical usage for a 2015 model and therefore accelerates wear on consumables such as brakes, tyres, suspension bushings and engine seals. The MOT records show no significant gaps; tests have been conducted annually, providing a consistent picture of the vehicle’s condition despite the high mileage. This usage pattern means that components subject to cyclic loads – particularly the front suspension and brake system – are likely to be approaching the end of their service lives and should be inspected with that expectation. When evaluating the front suspension, listen for clunking or knocking noises over bumps, feel for any looseness or wandering in the steering, and check that the wheels track straight when the steering wheel is centred. Excessive play in the ball joints or worn dust‑covers can allow dirt ingress, leading to accelerated wear and potential alignment issues; a qualified mechanic should verify the condition of the lower arm ball joint, track‑rod ends and associated bushings, and be prepared to replace them if play exceeds the prescribed limits. On the rear, inspect the off‑side tyre for sidewall cuts, bulges or cracking, and measure tread depth; the repeated advisory indicates that the tyre may be close to the end of its safe service life and could require replacement soon. The oil‑leak advisory recorded in October 2023 warrants a visual inspection for drips under the engine bay, especially around valve covers, oil filter housings and the sump gasket; any persistent leak should be quantified and repaired to avoid oil loss or contamination of other components. Front brake pad wear advisories from 2020 and 2021 suggest the pads were already approaching the minimum thickness at that time, so a current measurement of pad depth is essential – thin pads can lead to reduced braking efficiency and increased disc wear. During a test drive, monitor for any pedal pulsation, increased stopping distances or a high‑pitched squeal, all of which would indicate that the braking system may need resurfacing or pad replacement. Addressing these specific items will give a clearer picture of the car’s roadworthiness before committing to purchase.