2017 Mazda 3 2.0L Petrol · FN17 MLK

The most recent MOT, dated 13 November 2025, resulted in a failure. The test recorded a minor windscreen chip that does not impair the driver’s view, but more critically it identified a fractured off‑side rear coil spring, a major safety defect under the suspension category. Prior to this, the vehicle enjoyed a six‑year run of clean passes with no recorded defects, indicating that the maintenance record was stable until this recent failure, which now represents a clear deterioration in condition. With 58,864 miles on the clock after nine years of service, the car averages roughly 6,500 miles per year – a usage pattern that sits comfortably within the typical UK ownership range. There are no evident gaps or periods of unusually high mileage that would suggest aggressive short‑term use, so the wear on drivetrain and engine components is likely to be consistent with its age rather than excessive mileage. The fractured rear coil spring means the rear suspension will have lost a substantial portion of its ability to control wheel movement, potentially leading to uneven tyre wear, a noticeable clunk or knock when traversing bumps, and reduced handling stability, especially under cornering or when loaded. A prospective buyer should have the rear suspension inspected by a qualified technician, confirming that the spring is replaced and that the associated mounting points, bushings and dampers are not compromised. The windscreen chip, while minor, should be repaired promptly to prevent moisture ingress and further cracking, and the repair should be carried out with a certified technician to maintain structural integrity. During a test drive, listen for any rattles from the rear axle, feel for excessive body roll, and check that the steering remains precise without any wandering. Given the vehicle’s 2017 manufacture date, age‑related checks are advisable regardless of mileage. Examine the tyre sidewalls for cracking, dry rot or hardening, as ageing rubber can fail even on low‑wear tyres. Inspect the 12‑volt battery for sulphation and verify its cranking voltage, especially if the car has spent long periods idle. Look for signs of brake disc surface corrosion or seized caliper pistons, which can develop when a car sits for extended periods; the discs should be measured for thickness and the pads examined for uneven wear. Finally, confirm that the engine oil, coolant and brake fluid have been changed within the manufacturer’s recommended intervals, as fluids degrade over calendar time and can affect lubrication, cooling and braking performance even if the mileage is modest. A full service book with recent stamps will provide confidence that routine maintenance has been observed.