2015 Infiniti Q50 2.1L Diesel · RX15 OFV

The 2015 Infiniti Q50 currently holds a valid MOT certificate issued on 6 December 2025 at 86,942 miles, but the maintenance trend is clearly worsening. That same day the car failed its first attempt with two missing rear road wheel fixings, an inoperative engine malfunction indicator lamp, and corroded exhaust mounting. A pass was recorded immediately afterwards at the identical mileage, suggesting the defects were rectified on-site rather than through sustained preventative care. The recent advisories on both front tyres wearing to the legal limit and on the edge point to ongoing neglect of basic consumable checks. The vehicle has covered roughly 86,942 miles over approximately eleven years, averaging around 7,904 miles per year, which is typical for its age. The mileage progression is steady and unremarkable: 57,941 miles in December 2022, 67,228 miles in December 2023, 77,905 miles in December 2024, and 86,942 miles in December 2025, indicating consistent annual use with no suspicious gaps or sudden spikes. The record is clean and complete, with no missing annual tests, which supports reasonable administrative diligence if not mechanical diligence. A buyer should focus the physical inspection on the rear wheel fixings and hub area, given the December 2025 failure for missing fixings on both sides. Check for elongated bolt holes, uneven stud wear, or non-standard wheel bolts that might suggest repeated improper refitting. The corroded exhaust mounting flagged in the same test warrants an underside inspection of the full exhaust system, particularly around hangers and the catalytic converter heat shields, as corrosion in this area can lead to exhaust gas leaks or component detachment. The engine MIL inoperative fault demands a diagnostic scan to confirm no stored fault codes and to verify the lamp illuminates on ignition, since a suppressed warning light can mask emissions-related failures. Tyre wear patterns deserve close attention. Both front tyres were noted as worn on the edge in December 2025, which typically indicates misaligned front geometry or underinflation over time. Have the front suspension alignment and condition of the lower arm bushes, track rod ends, and coil springs assessed professionally. The advisory on rear brake pads wearing thin in December 2023 at 67,228 miles has no corresponding follow-up mention, so the condition of rear brake discs, pads, and calipers should be verified to confirm they have not deteriorated into a binding or uneven wear condition. Overall, the record suggests a car that has been kept legally compliant but not proactively maintained, and a pre-purchase inspection is strongly advised.