2017 Infiniti Q70 2.1L Diesel · NK17 YPT

The 2017 Infiniti Q70 presents a mixed maintenance picture. The most recent MOT on 16 March 2026 at 117,934 miles passed, but the tester flagged slight play in all four suspension ball joints, both front lower arms and both rear anti-roll bar linkages. This is a notable cluster of wear items for a single test. Comparing this to the clean pass on 17 March 2025 at 112,317 miles, the trend is clearly worsening. The suspension components have deteriorated from zero advisories to four separate ball joint defects within a single year, suggesting the front and rear suspension bushes and joints are now at the end of their serviceable life and will likely require replacement to prevent further handling degradation or potential failure. The vehicle has covered 117,934 miles over roughly nine years, averaging approximately 13,104 miles per year. This is a high annual rate for a luxury saloon of this age. The mileage progression shows a notable gap between the March 2024 test at 93,035 miles and the December 2022 test at 86,098 miles, a span of over 18 months yielding only 6,937 miles. However, the subsequent jump to 112,317 miles by March 2025 represents 19,282 miles in just 12 months, indicating a sharp increase in use. This uneven pattern suggests the car may have sat idle for a period before being driven heavily, which can be particularly harsh on seals, rubber bushes, and brake components due to prolonged static periods followed by sustained high-mileage running. The March 2024 test at 93,035 miles flagged worn rear brake pads and scored inner brake discs on all four corners, along with a worn nearside front tyre. These are consumable items and expected at that mileage, but the fact that the March 2025 test recorded no brake or tyre defects suggests they were replaced. A buyer should still inspect the current brake disc thickness and pad depth, as well as tyre condition, given the 5,617 miles covered since the last test. More pressing is the suspension wear identified in March 2026. The simultaneous appearance of play in all four ball joints raises the question of whether the vehicle has endured rough roads or impacts. A pre-purchase inspection should include a thorough check of the lower suspension arms, anti-roll bar linkages, and subframe mounting points for corrosion or damage, particularly given the car's high-mileage usage pattern and the rapid onset of these defects.