2017 Mazda 3 2.0L Petrol · SL67 FHT

The most recent MOT test for this 2017 Mazda 3 occurred on 2025-09-25, where the vehicle was awarded a clean pass with no recorded defects. However, the prior MOT history reveals a concerning pattern of failures and advisories, particularly the 2024-09-30 test, which marked the first failure in the vehicle’s history. This test identified a major fault—offside rear coil spring fractured or broken—and a near-side rear tyre nail, both of which are critical structural and safety issues that must be addressed urgently. The subsequent MOTs in 2023 and 2024 were clean, suggesting either a temporary resolution of the spring issue or a delayed response to the defect, but the presence of thin rear brake pads and pitted brake discs from 2022 indicates ongoing wear that warrants attention. The overall maintenance trend is unstable, with a single major failure followed by a period of apparent compliance, but the recurring advisories on brake components and tyre integrity suggest underlying wear that may escalate if not properly serviced. The vehicle’s recorded mileage of 70,423 miles at the time of this assessment represents a moderate annual usage rate of approximately 7,825 miles per year, which is within the expected range for a nine-year-old car. However, the mileage data alone do not fully explain the mechanical issues encountered during testing. The significant gap between the 2023 and 2024 MOTs—nearly two years—could indicate prolonged periods of inactivity, which often exacerbates standing corrosion, particularly in brake systems and suspension components. If the vehicle was stored without regular movement, the brake discs may have developed corrosion or binding calipers due to prolonged idleness, while the coil spring failure could have been exacerbated by stress from static loading. Conversely, if the mileage accumulation was rapid, the wear on suspension bushes, tyres, and drivetrain components would be accelerated, further justifying a thorough inspection. Given the history of coil spring failure and the advisories on brake components, the prospective buyer should prioritise a detailed mechanical inspection before purchase. The fractured coil spring is a major safety concern, as it compromises the vehicle’s handling dynamics and structural integrity, potentially leading to uneven tyre wear, excessive body roll, or even suspension failure during acceleration or cornering. On a test drive, listen for unusual clunking or rattling noises from the rear suspension, particularly when driving over bumps or at higher speeds, and check for excessive play in the wheel alignment. The thin brake pads and pitted discs from the 2022 MOT advisory indicate that the braking system is approaching its operational limits, so inspect the brake fluid level for contamination or bubbles, which could signal hydraulic issues, and examine the brake lines for cracks or corrosion. Additionally, verify that the brake calipers are not binding, as this can cause uneven wear or a spongy pedal feel. For the buyer’s immediate inspection, focus on the following critical areas: the rear suspension assembly, where the coil spring failure was recorded, and ensure all suspension components—such as the shock absorbers, struts, and suspension bushes—are free from leaks, excessive wear, or physical damage. The brake system should be thoroughly inspected for signs of corrosion on the discs and pads, particularly if the vehicle has been stationary for extended periods. Check the tyre tread depth and sidewall condition for signs of perishing or cracking, which can compromise tyre integrity at high speeds or in adverse conditions. Given the vehicle’s age and the history of brake advisories, consider a professional brake system flush and pad replacement if the discs are significantly worn or pitted. Finally, since the last MOT was two years prior, ensure that all time-sensitive fluids—such as the engine oil, coolant, and brake fluid—are up to date, as these can degrade over time even with moderate usage. A comprehensive service history check, including the last oil change and fluid top-ups, would also provide valuable context for the vehicle’s maintenance record.