2014 Infiniti Q50 2.1L Diesel · UY55 SSS

The vehicle’s MOT record is dominated by recurring tyre and sub‑frame concerns, with several dangerous tyre failures in 2021 and 2024 and a persistent advisory that the rear sub‑frame is corroded, albeit not yet structurally compromised. The latest January 2026 test was passed, yet it still flagged front tyres approaching the legal tread limit and the same rear sub‑frame corrosion, indicating that while the most serious defects have been rectified, the underlying wear pattern remains active. At 101,892 mi the car averages roughly 8,500 mi per year, a mileage rate that sits comfortably within normal usage for a twelve‑year‑old executive sedan. The MOT history shows a consistent yearly testing cadence with no significant gaps, suggesting the mileage has been accumulated steadily rather than in short, high‑intensity bursts. This steady accumulation means wear on consumables such as tyres, brakes and suspension components is likely to be proportional to the recorded miles, without hidden high‑stress periods. Prospective buyers should give particular attention to the tyre condition: inspect all four wheels for tread depth, sidewall bulges, exposed cords or any signs of separation, and verify that the tyre wear is even across the set. During a test drive, feel for vibrations or thumping that could indicate a compromised tyre structure, and listen for any wind‑noise or humming that may betray a developing sidewall defect. Front brake pads should be measured for remaining thickness; a thin pad will produce a high‑pitched squeal under light braking and a longer stopping distance, while the rear brake disc, previously noted as pitted, should be checked for scoring that could cause pulsation under braking. The rear sub‑frame corrosion, although not yet deemed dangerous, warrants a visual inspection for rust flaking, especially around mounting points, and a road test for any creaking or clunking when traversing bumps or during hard cornering, which would suggest progression toward structural weakening. The advisory on an oil leak (2022) and the slight play in the off‑side rear anti‑roll bar linkage ball joint (2023) should be verified by checking for oil stains beneath the engine bay and by feeling for looseness in the rear suspension during cornering. Addressing these items now—replacing the tyre set, fitting new front brake pads, and confirming the integrity of the sub‑frame and anti‑roll bar linkage—will mitigate the most immediate mechanical risks before committing to purchase.