2018 Mazda Cx-3 2.0L Petrol · CF18 WKH

A recent dangerous failure concerning rear brake pad thickness and pitted rear discs defines the current mechanical status, though the vehicle ultimately achieved a pass on 27 July 2026. This failure followed a recurring advisory regarding the tyre pressure monitoring system (TPMS) light, which has appeared in consecutive tests since July 2025. While the earlier history from 2021 to 2024 was relatively stable, the most recent testing cycle indicates a decline in the condition of the braking system and a persistent electronic fault. The recorded mileage of 45,467 miles is low for an eight year old vehicle, averaging approximately 5,683 miles per year. This usage pattern suggests the vehicle has not been subjected to heavy long-distance wear on the drivetrain or engine components. However, low annual mileage can sometimes lead to accelerated wear on brake discs through surface corrosion or pitting, as seen in the July 2026 failure, rather than through frictional wear from high usage. During a physical inspection, verify that the rear brake pads and discs have been replaced to rectify the dangerous failure and the associated pitting. On a test drive, feel for any pedal judder or uneven deceleration, which could indicate that the discs were not replaced alongside the pads. The persistent TPMS light advisory requires investigation to determine if the fault lies with a specific sensor or the central monitoring system, as this has remained unresolved across multiple tests. Attention should be paid to the front tyre wear patterns, as a 2022 advisory noted significant wear on the inner edges of both front tyres. This specific wear pattern often points to incorrect wheel alignment or worn suspension bushes. Inspect the current front tyres for similar uneven wear and listen for any knocks or vibrations through the steering wheel when traversing uneven road surfaces, which would suggest that the underlying alignment or suspension issue persists.