2015 Infiniti Q50 2.1L Diesel · S9 SMJ

The 2015 Infiniti Q50 has logged 80,378 mi, which works out to about 7,300 mi a year – a fairly typical figure for a car of its age. The mileage alone does not point to either heavy abuse or long periods of inactivity, so wear should be judged from the MOT record. The most recent MOT (28 Nov 2025) was a pass, but it highlighted rear‑inner brake disc wear and thin rear‑inner brake pads. The previous year’s test (12 Dec 2024) also passed but noted several tyres at or near the legal tread limit, a cracked front‑outer tyre, a non‑functioning rear‑plate lamp and mild sub‑frame corrosion. In 2023 the car failed because of a sub‑minimum rear tyre tread, excessively worn rear anti‑roll‑bar ball joints and rear brake pads under 1.5 mm. Earlier tests were clean aside from a near‑rear tyre warning in 2022. The recurring pattern is progressive tyre wear (especially rear) and rear‑suspension/brake component degradation. After the 2023 failure the car was able to pass the next two tests, but the same areas continue to be flagged, indicating a stable but not improving condition. The sub‑frame corrosion noted in 2024, while not structurally critical yet, suggests exposure to moisture and should be monitored. Given the mileage is average, the wear items are more a function of component life than excessive mileage.