2014 Infiniti Q50 3.5L Petrol · MW63 TFO

The 2014 INFINITI Q50 holds a valid MOT issued on 30 December 2025 at 122,434 miles, but the maintenance trend over the preceding two years is mixed rather than consistently improving. The most recent pass came only after a failure thirteen days earlier on 17 December 2025 at 122,426 miles, where both rear anti-roll bar linkage ball joints were excessively worn. That same test also flagged a front sub-frame corrosion advisory, which carried over unchanged into the pass certificate. A buyer should view the current MOT as a snapshot of compliance, not evidence of thorough preventative upkeep. Mileage accumulation sits at roughly 10,200 miles per year over the vehicle's twelve-year life, which is typical for its age. The record shows a gap of just over one year between the October 2023 pass at 108,112 miles and the October 2024 failure at 114,911 miles, representing approximately 6,800 miles in that period. The jump from November 2024 to December 2025 covers around 7,450 miles in thirteen months, suggesting consistent but not excessive use. No suspicious mileage reversals or large undocumented gaps appear in the data. The October 2024 failure at 114,911 miles is the most technically revealing entry. Both front lower suspension arm ball joints were excessively worn, all four tyres were at or below legal limits, and the rear brake discs were worn, pitted, or scored. Failing on four tyres and two suspension ball joints in a single test points to deferred basic maintenance rather than gradual wear. The rear anti-roll bar linkage ball joints then deteriorated from a slight play advisory in November 2024 to excessive wear by December 2025, indicating suspension components are being run to failure rather than replaced proactively. A buyer should focus any pre-purchase inspection on the front sub-frame corrosion noted in both December 2025 tests, as under covers were fitted, potentially masking the full extent of structural deterioration. The suspension should be load-tested for play across all ball joints and linkages, particularly at the rear where recurring wear is evident. Rear brake disc thickness and condition warrant measurement, given the pitting advisory from 2024 was not flagged as resolved in subsequent tests. Tyre condition and age should also be verified, as the 2024 failure suggests replacement cycles may have been stretched.