2015 Infiniti Q50 2.1L Diesel · NJ15 OKP

The 2015 INFINITI Q50 presents a stable and largely reassuring maintenance trend, culminating in a fully clean MOT pass on 6 August 2025 at 111,803 miles with zero defects recorded. That result is significant given the vehicle's age and mileage, indicating that critical safety and emissions systems were fully compliant at its most recent inspection. The record shows no recurring failures in the most recent cycle, and the trajectory from 2022 through 2025 suggests previous faults were addressed rather than left to deteriorate. The vehicle has covered approximately 10,164 miles per year across its eleven-year life, which is broadly typical for its class. A notable gap exists between the July 2023 test at 82,659 miles and the August 2025 test at 111,803 miles, representing roughly 29,144 miles accumulated over two years. That is a meaningful increase compared to the earlier pattern of around 10,000 miles annually between 2021 and 2023. The jump suggests either a change in ownership, a shift to heavier use, or a period of sustained motorway driving. No MOT record exists for 2024, which is a minor gap worth noting but not unusual if the vehicle was tested late in 2024 and again in August 2025. The 2022 failure is the most technically revealing entry in the record. The tester flagged excessively worn nearside and offside rear anti-roll bar linkage ball joints alongside a significantly worn rear inner brake disc. Anti-roll bar linkage wear at 72,527 miles on a Q50 is not uncommon, particularly if the car has been driven on poor road surfaces or used for spirited driving. However, both sides failing simultaneously suggests the rear suspension had seen sustained stress or neglect. The rear brake disc wear on the same test reinforces that picture of a vehicle whose braking and suspension components were under strain at that point. The subsequent clean passes in 2022, 2023, and 2025 indicate these items were replaced or repaired, but a buyer should still inspect the rear anti-roll bar links, drop links, and bushings for play, and examine the rear brake discs and pads for uneven wear or lipping. Beyond the flagged items, the registration plate lamp advisory from July 2023 was minor and likely resolved before the 2025 test. With no further advisories since, the electrical and lighting systems appear sound. A prospective buyer should still conduct a thorough underbody inspection for corrosion, particularly around the rear subframe, suspension mounting points, and brake lines, as these are common deterioration points on Q50 models of this era. The exhaust system and DPF, where fitted, should be checked for leaks or soot staining given the increased mileage accumulation in recent years. Tyre condition and alignment should also be assessed, as uneven wear patterns could reveal lingering suspension geometry issues from the earlier ball joint wear.