2015 Infiniti Q50 2.1L Diesel · RX15 OJD

The vehicle is currently roadworthy, though the maintenance trend shows signs of reactive rather than proactive care. The most recent test in June 2025 at 76,332 miles passed with only a minor advisory for slight play in the nearside rear anti-roll bar linkage ball joint. This represents a significant improvement over the 2024 failure where the car presented multiple safety-critical defects, suggesting that the previous owner addressed major mechanical faults once prompted. At 76,332 miles over 11 years, the car has covered a lower-than-average annual mileage, averaging just under 7,000 miles per year. This low usage profile typically reduces wear on drivetrain components and interior plastics but can lead to accelerated component degradation. The data shows a consistent usage pattern with approximately 6,000 miles driven between the 2023 and 2024 tests, and another 6,265 miles recorded between June 2024 and June 2025, indicating regular operational intervals. A buyer should inspect the rear braking assembly closely during a physical evaluation. The May 2024 failure revealed both the offside and nearside rear brake discs were seriously weakened on the inner faces. While these were likely replaced before the subsequent pass, the buyer should check for signs of uneven wear or seizing from the calipers. Furthermore, the 2025 advisory regarding the anti-roll bar linkage should be monitored, as play in ball joints will eventually lead to a failure and can affect handling stability. The history also highlights a 2023 failure for insufficient tyre depth on the rear axle, which indicates a period where basic consumable maintenance was neglected. The supplementary restraint system warning lamp fault from 2024 must also be verified by ensuring the airbag warning light does not remain illuminated upon ignition. Given the low mileage and age of the vehicle, also inspect rubber bushes for cracking and check for any surface oxidation on exposed metal that often occurs when vehicles sit stationary for extended periods.