2015 Infiniti Q50 2.1L Diesel · RF15 KVX

The 2015 INFINITI Q50 presents a stable and largely reassuring roadworthiness profile. The most recent test, conducted on 01 April 2026 at 85,637 miles, passed with zero defects recorded, indicating all major safety and emissions systems were fully compliant at that point. The maintenance trend is broadly improving. While the 2025 test at 75,444 miles flagged two minor suspension advisories, the subsequent 2026 test cleared entirely, suggesting those items were either rectified or had not deteriorated to a failure point. The 2023 test at 56,045 miles also recorded a single advisory for slight play in the offside rear anti-roll bar linkage ball joint, a common wear item on this platform, but this too did not recur in later tests. The absence of any dangerous or major defects across the entire five-test history is a positive indicator of baseline structural integrity. The mileage accumulation is consistent and unremarkable for an eleven-year-old vehicle. Between the 2022 test at 48,333 miles and the 2026 test at 85,637 miles, the car covered approximately 37,304 miles over four years, averaging just over 9,300 miles annually. The 2025 to 2026 interval shows a jump of 10,193 miles in a single year, which is slightly above the longer-term average but not indicative of excessive use or neglect. There are no suspicious gaps in the annual test pattern that would suggest prolonged periods of inactivity or clocking concerns. The odometer readings progress logically and align with the documented test dates. Despite the clean recent result, a prospective buyer should still carry out a focused physical inspection of the rear suspension components. The recurring advisories for anti-roll bar linkage ball joint play and the worn shock absorber bush flagged in 2025 point to the rear end as the area most prone to wear on this model. Check the nearside and offside rear lower anti-roll bar links for any perceptible play by rocking the vehicle or levering the joints. Inspect the upper shock absorber mounts and bushes for deterioration, cracking, or movement. Examine the rear subframe and suspension mounting points for corrosion, particularly if the vehicle has spent time in areas with heavy road salt use. While the 2026 pass is encouraging, these are consumable items that degrade with age and mileage, and their condition can change between annual tests. A short test drive over uneven surfaces will reveal any knocking or clunking from the rear that would confirm residual wear not yet severe enough to trigger a failure.