2016 Ford Focus 1.5L Diesel · RX16 ONS

Structural corrosion on the front and rear subframes represents the primary mechanical concern for this vehicle, following a failed MOT on 23 February 2026. While the most recent test outcome was a pass, the presence of advisories regarding corrosion on both subframes indicates a developing issue with the chassis integrity that requires close monitoring. This follows a period of clean records from 2021 through 2024, but the transition from no recorded defects to multiple advisories and a dangerous failure for a tyre bulge suggests a recent shift in the vehicle's condition. The recorded mileage of 78,756 miles over a ten-year period equates to an average annual accumulation of approximately 7,876 miles. This usage pattern is consistent with typical domestic driving and suggests that components have been subjected to regular, moderate wear rather than the extreme stresses of high-mileage motorway use or the potential degradation associated with long periods of inactivity. However, the recent emergence of tyre damage and structural corrosion means that the mechanical state of the vehicle is currently defined by these specific wear items rather than its historical mileage. Prospective buyers should pay particular attention to the subframe advisories during a physical inspection. While the corrosion was noted as not seriously weakened, the progression of rust on both the front and rear subframes can eventually compromise suspension geometry and structural safety. On a test drive, listen for any irregular knocks, clunks, or vibrations coming from the underside of the car, especially when traversing uneven surfaces or during heavy braking, as these could indicate that the corrosion is affecting mounting points or suspension linkages. Tyre condition also requires immediate scrutiny. The recent history includes a dangerous failure due to a structural bulge on the offside rear tyre and advisories for sidewall damage on the nearside front. It is essential to inspect all four tyres for bulges, cracks, or sidewall irregularities that could indicate internal structural failure. Additionally, because the MOT record notes plastic covers obscuring the outer sills, a thorough visual inspection of the sills and lower bodywork is necessary to ensure that any underlying corrosion is not being hidden from view.