INFINITI Q502018 · 2.1L DIESEL

The 2018 INFINITI Q50 presents a stable and improving maintenance trend, culminating in a clean pass at 29,855 miles on 21 November 2025 with zero defects. That clean result followed a failed test just three days earlier on 18 November 2025 at 29,850 miles, where the tester recorded exhaust emissions exceeding the manufacturer's specified limit under item 8.2.2.2 (a). The rapid retest and pass indicate the emissions fault, likely a catalytic converter or sensor issue, was promptly rectified. This pattern of a swift repair and clean pass suggests attentive ownership in the short term. The mileage profile is notably low for an eight-year-old vehicle. Between the 8 June 2024 test at 22,909 miles and the November 2025 tests at 29,850 to 29,855 miles, the car covered approximately 6,946 miles in roughly seventeen months, averaging around 409 miles per month. This is a moderate uptick from the earlier average of roughly 3,732 miles per year, but the overall figure of 29,855 miles remains well below the UK average. The sparse MOT record, with only three tests logged across the vehicle's life, limits the depth of historical analysis, though the data available shows no structural or recurring corrosion concerns. The June 2025 test at 28,628 miles flagged several items worth inspecting in person. A nearside rear drive shaft oil leak at the differential unit was noted, which could point to a failing differential seal prone to weeping under load. Both inner rear brake pads were wearing thin, and the tester also found a nail in the offside rear tyre alongside ineffective wipers on both sides. While these were addressed ahead of the June pass, a buyer should verify the differential area for fresh oil misting and examine the rear brake discs for scoring. The front brakes and suspension bushes showed no advisories across the record, but a physical check of lower arms and drop links remains prudent given the car's age, even at low mileage.