2016 Ford Focus 1.5L Diesel · LD10 ODD

The most recent MOT inspection on 23 July 2026 resulted in a pass, but the vehicle failed earlier that same day due to an inoperative or malfunctioning engine Malfunction Indicator Lamp (MIL). This failure is significant as the MIL is a critical safety component that informs the driver of engine management issues; its failure suggests either a bulb fault or, more concerningly, a deliberate attempt to mask an underlying engine fault. While the vehicle has passed several consecutive tests, the maintenance trend appears somewhat erratic, moving from minor lighting and suspension advisories in 2024 to more complex electronic and sensor-related issues in 2026. The presence of a Tyre Pressure Monitoring System (TPMS) advisory alongside the MIL failure suggests that the vehicle's electronic sensor network may be reaching the end of its reliable service life. With 180,714 miles recorded over approximately ten years, this Ford Focus has averaged roughly 18,000 miles per year. This is considered high mileage for a domestic vehicle, indicating consistent, heavy usage rather than long periods of standing. From a mechanical standpoint, this high accumulation of mileage places substantial cumulative stress on all moving parts, particularly the drivetrain, suspension, and braking systems. While high mileage often implies a vehicle has been used regularly, which can prevent certain types of corrosion associated with sitting idle, it also necessitates a much more rigorous inspection of wear-and-tear components. You should expect to see more advanced degradation in rubber components, such as engine mounts and suspension bushes, compared to a lower-mileage equivalent. The MOT history highlights several recurring mechanical concerns that require close scrutiny during a test drive. The advisories from 2024 regarding worn or pitted front brake discs and worn nearside rear suspension arm bushes suggest that the braking and suspension systems are nearing the end of their service intervals. During your inspection, listen for any clunking or knocking sounds when driving over uneven surfaces, which would indicate that the suspension bushes have progressed from a minor advisory to a functional failure. Furthermore, check for any brake shudder or vibration under deceleration, which may indicate that the pitted discs require replacement. The recent TPMS advisory also means you should verify if any sensors are faulty or if there are slow punctures causing pressure loss, as this can lead to uneven tyre wear and compromised handling. Given the high mileage and the recent electronic failures, you must conduct a thorough physical inspection of the vehicle's consumables. Check the tyres thoroughly for uneven wear patterns, particularly on the edges, as previous advisories have noted tyres wearing close to the legal limit. Inspect the tyre sidewalls for any signs of perishing or cracking due to age, even if the tread depth appears sufficient. It is also essential to verify the service history to ensure that oil changes and fluid replacements have been carried out at appropriate intervals, as high-mileage engines are highly sensitive to oil degradation. Finally, check for any signs of fluid leaks around the engine bay and exhaust system, and ensure that the engine management system is fully functional with no residual warning lights illuminated on the dashboard.