2017 BMW 420D Gran Coupe M Sport Auto 2.0L Heavy oil · SL03 MAG

The latest MOT test outcome for this BMW 420D is a pass recorded in October 2025, with no defects noted. While a failed test was recorded on the preceding day, the absence of specific defect details suggests a minor rectification was carried out immediately to achieve the pass. The overall maintenance trend appears stable and consistent, as the vehicle has maintained a clean MOT record throughout its recent history, indicating that the essential safety and environmental components have been sufficiently maintained to meet regulatory standards. The recorded mileage of 98,949 miles represents an annual average of approximately 11,000 miles, which is entirely consistent with typical usage for a vehicle of this age. This steady mileage profile is generally positive for a diesel engine, as it suggests the vehicle is used frequently enough to mitigate the risk of excessive carbon buildup in the diesel particulate filter and to keep internal components lubricated. However, as the vehicle approaches the 100,000-mile milestone, you should be mindful of the increased wear on consumables such as suspension bushings, brake components, and drivetrain mounts. Since the MOT history shows no recorded advisories, your physical inspection should focus on age-related degradation and preventative maintenance. Examine the tyres carefully for any signs of perishing or sidewall cracking, which can occur due to the age of the rubber even if the tread remains deep. Check the brake discs for excessive corrosion or uneven wear and listen for any signs of binding calipers during the test drive. It is also essential to verify the service history to confirm that fluid changes, including engine oil, brake fluid, and coolant, have been conducted at appropriate intervals to prevent chemical degradation. During the test drive, listen for any suspension clunks or knocks when traversing uneven surfaces, which could indicate worn coil springs or deteriorated bushes. Pay attention to the steering for any pulling or vibrations, and check for any brake shudder when applying pressure at speed. Because this is an M Sport model with sophisticated electronic systems, ensure the 12V battery is in good health and that no warning lights are present on the dashboard. Finally, inspect the engine bay and underbody for any signs of fluid leaks or structural corrosion that may not have been highlighted in the MOT records.