2015 Infiniti Q50 2.1L Diesel · RX15 OFB

The vehicle remains roadworthy, though the maintenance trend shows a shift from clean records to emerging mechanical wear. The most recent test in September 2025 at 48,374 miles introduced advisories for slight play in both rear anti-roll bar ball joints and tyre damage. This marks a departure from the pristine results seen in 2022 and 2024, indicating that suspension components are now beginning to age despite the vehicle's low mileage. The mileage profile is notably low for an eleven-year-old car, averaging approximately 4,400 miles per year. There is a consistent pattern of usage, with a 10,000-mile gap between 2023 and 2024, and another 8,378 miles recorded in the final year of testing. While this low mileage generally suggests less strain on the engine and drivetrain, long periods of standing can lead to the degradation of rubber seals, as evidenced by the minor rear differential oil leak noted during the 2023 test. A buyer should focus specifically on the rear suspension during a physical inspection, as the play in the anti-roll bar ball joints will eventually require replacement to prevent handling instability or knocking noises. The reported cuts on the offside front and nearside rear tyres require monitoring to ensure they have not progressed toward the structural cords. Furthermore, the previously noted oil leak on the differential should be checked for active seepage to ensure it remains stable and has not worsened since the last MOT.