2015 Infiniti Q50 2.1L Diesel · RF15 KVC

The 2015 INFINITI Q50 presents a stable and improving maintenance trend, culminating in a clean pass on 14 March 2026 at 128,453 miles with zero defects recorded. This is a strong indicator that the most recent keeper addressed prior faults promptly. The vehicle has moved from a pattern of minor advisories and a failure in 2024 to a fully compliant state, suggesting attentive upkeep in the last year. The mileage accumulation is broadly typical for an eleven-year-old saloon, averaging roughly 11,678 miles per year. A notable gap exists between the March 2024 test at 56,131 miles and the March 2025 test at 93,568 miles, representing 37,437 miles covered in twelve months. This sharp increase indicates a period of heavier use or a change in ownership pattern, placing greater stress on consumable components such as brakes, tyres, and suspension bushes during that interval. The 2024 failure flagged rear brake pads below 1.5 mm and perishing on both the nearside front and rear tyres. Although the subsequent 2025 and 2026 tests show no further brake or tyre defects, a buyer should physically inspect the rear calipers for binding and measure disc thickness, as rapid mileage accumulation can accelerate uneven wear. The 2025 advisory for slight play in the nearside rear anti-roll bar ball joint warrants close examination of the entire rear suspension linkage, including drop links and bushes, for any deterioration that may have progressed since that test. Given the clean 2026 result, structural corrosion and exhaust emissions appear satisfactory at present. A pre-purchase inspection should still focus on the subframe and inner wheel arches for early corrosion, particularly if the vehicle has been used on salted roads during the high-mileage period. The tyre perishing noted in 2024 also raises a question about storage conditions or age-related rubber degradation, so checking the date codes on all four tyres and the spare is advisable.