2015 Mazda 3 1.5L Petrol · PX15 NUP

The most recent MOT on 2026-03-16 recorded two instances of corroded coil spring mountings on the rear suspension, both deemed not seriously weakened. This mirrors a similar issue noted in the failed MOT on 2026-03-12, which also cited corroded mountings and added a critical failure: the offside rear upper shock absorber mount had snapped, risking detachment. These corrosion-related defects suggest exposure to harsh environmental conditions, likely accelerating metal degradation in the suspension system. The 2026-03-12 failed MOT revealed a pattern of recurring suspension and tyre issues, including corroded components and tyres worn close to legal limits. A prior failed MOT in 2025-03-11 listed similar tyre wear, a track rod end with slight play, and non-functional lights, while a 2025-03-11 passed MOT noted a child seat obstructing belt inspection and minor tyre wear. These inconsistencies indicate intermittent maintenance or oversight, with no clear trend of improvement. The vehicle’s 114,460-mile age (11 years) equates to roughly 10,405 miles annually, which is typical for its age. However, the recent suspension defects and repeated tyre wear suggest potential overuse or exposure to corrosive elements. While the mileage itself is unremarkable, the concentration of issues in the final 12 months raises concerns about accelerated wear or unresolved faults. The most pressing risks involve the suspension system, particularly the rear coil springs and shock absorbers, which show progressive corrosion.