2015 Infiniti QX70 3.0L Diesel · YX15 RNN

The vehicle currently holds a valid MOT status as of 2025-10-30, with minor advisories including a low engine oil level and a non-functional offside rear registration plate lamp — both of which were also flagged in the prior failed test just one day earlier. While the car passed this most recent inspection, the pattern of recurring lamp failures, oil leaks, and tyre issues suggests a maintenance trend that remains unstable rather than improving. The fact that the same registration plate lamp issue appeared across three separate tests indicates a persistent electrical or mounting fault, not a one-off failure. The oil leak, though classified as non-excessive, has been noted in four out of five recorded tests, implying a chronic seal or gasket issue that may worsen over time. Mileage progression shows a steady annual average of approximately 7,980 miles over eleven years, which is within the typical range for a vehicle of this age. The jump from 75,735 miles in November 2023 to 82,744 miles in November 2024, then to 87,775 miles in October 2025, reflects consistent usage without any significant gaps or sudden spikes. This steady accumulation supports the notion that the car has been regularly driven, not stored or neglected, but also means that wear on components like brake discs, tyres, and suspension bushes is likely to be cumulative and visible. The fact that the same brake discs were flagged as worn in 2023, 2024, and 2025 suggests that replacement has not been prioritised, even though the wear was not yet critical. A buyer should inspect the rear suspension bushes and coil springs for excessive wear or play, as the repeated brake disc warnings and the 2024 failure for a missing wheel fixing point to potential structural or fastening issues. The offside front tyre with a cut reaching the ply, noted in the 2025 failed test, demands immediate replacement and should be cross-checked for alignment or suspension damage that may have caused the cut. The oil leak, while not excessive, should be traced to its source — likely a gasket or seal near the engine block or transmission — as continued operation without repair risks more severe fluid loss or engine damage. The recurring lamp failures, especially the registration plate lamp, should be examined for wiring damage, corrosion, or loose mounting, as these are often overlooked but can lead to future non-compliance. The vehicle’s mechanical condition is serviceable but not pristine. It has been maintained to a basic level, with repairs deferred on several safety-critical items. A buyer should budget for immediate tyre replacement, brake disc inspection, and a full electrical system check, particularly around the registration plate and fog lamp circuits. The oil leak should be addressed before the next MOT to prevent escalation. While the car is roadworthy now, its history suggests a pattern of deferred maintenance that may require more substantial work in the near future.