2017 Infiniti Q50 2.1L Diesel · BK67 WGU

The vehicle currently holds a valid MOT certificate, however the March 2026 test at 113,298 miles records a marginal rear parking brake efficiency, a significant advisory indicating the braking system requires immediate attention. This single advisory breaks a sequence of three consecutive clean passes from 2024 through early 2026, suggesting a deterioration in a critical safety component rather than a stable maintenance pattern. The prior history shows no recurring structural or suspension defects, but the emergence of this brake issue represents a clear negative trend in the vehicle's mechanical condition. The recorded mileage demonstrates a high annual average of approximately 12,589 miles, with a notable period of intense use between the October 2021 test at 70,326 miles and the November 2022 test at 91,437 miles—an accumulation of over 21,000 miles in just over a year. This spike likely precipitated the tyre defects noted in November 2022, including worn front tyres and a sidewall cut, which are consistent with high-load use or neglected consumable replacement. Subsequent annual mileage increments appear more moderate, yet the total mileage remains substantial for a nine-year-old vehicle, implying accelerated wear on all drivetrain and suspension components. A prospective buyer must prioritise a thorough inspection of the rear braking system, specifically the parking brake mechanism and rear brake shoes or discs, to diagnose the cause of the low efficiency. The front tyres should be examined for any residual damage or irregular wear patterns stemming from the 2022 defects, and the suspension bushes should be checked for deterioration given the high overall mileage. While the MOT history shows no structural corrosion advisories, the combination of high use and the recent brake advisory warrants a comprehensive underbody inspection for any hidden corrosion or wear on mounting points.