2009 Infiniti FX 3.7L Petrol · RX59 FNO

The 2009 INFINITI FX presents a stable and improving maintenance trend heading into its most recent test. The February 2024 pass at 109,106 miles was completely clean, recording zero defects or advisories, which marks a significant step up from the cluster of minor faults noted in the February 2022 test. That 2022 test flagged corroded brake pipes, perished front tyres, and thin rear pads, yet the subsequent two annual tests cleared the vehicle entirely. This suggests the previous owner addressed those specific corrosion and wear items promptly. The vehicle currently sits just over four months past its last annual test, meaning the mileage is highly likely to remain very close to the 109,106 mark, keeping the drivetrain assessment current. Mileage accumulation sits at roughly 6,418 miles per year, a typical figure for a 17-year-old performance SUV. The record shows a steady climb from 88,578 miles in February 2021 to 109,106 miles in February 2024, with no alarming gaps or sudden spikes that would suggest long-term standing or severe neglect. The only minor anomaly was the failed test on 19 February 2021 at 88,566 miles, immediately followed by a pass three days later at 88,578 miles. That 12-mile jump indicates the owner replaced the defective tyres and returned to the same station almost immediately, a pattern consistent with reactive but responsible maintenance rather than prolonged fault tolerance. The recurring theme across the 2021 and 2022 records is tyre degradation and brake system corrosion, both of which demand a close physical inspection today. The tester flagged perished and worn front tyres in consecutive years, suggesting the vehicle may spend extended periods stationary, causing flat-spotting and sidewall cracking. A buyer should carefully examine the date codes and sidewall condition of all four tyres, regardless of current tread depth. The 2022 advisory regarding an offside front brake pipe covered in grease or other material, alongside corroded rear exhaust joints, points to potential underbody moisture retention. Inspect the underside for structural rust, particularly around the subframes, suspension mounting points, and the condition of the brake lines where they route along the chassis. While the recent clean record is encouraging, those earlier corrosion flags warrant verification that the structural integrity has not deteriorated further.