2009 BMW 520 2.0L Diesel · FSU 536

The vehicle achieved a clean pass on 11 December 2025 at 77,601 miles, following a failed test just three days earlier at 77,589 miles. The failure recorded no specific defects, which suggests either an administrative issue or a transient condition that was remedied before the retest. This pattern of back-to-back tests within days is atypical and warrants closer examination of the full MOT certificate details. The overall maintenance trajectory appears stable, with no recurring mechanical faults documented across the five-year MOT history. The 2009 BMW 520 has covered approximately 4,565 miles annually over its 17-year lifespan, indicating relatively light usage. Annual mileage remained consistent between 2022 and 2024, ranging from 3,052 to 4,149 miles per year. The vehicle has been tested annually without gaps, suggesting regular keeper compliance. The December 2025 retest after only 12 additional miles indicates the vehicle was likely still at the test station when the initial failure occurred, pointing to a minor, quickly resolved issue rather than a significant mechanical problem. Despite the clean MOT record, the low annual mileage warrants closer inspection of components prone to deterioration during periods of inactivity. Brake callipers may have seized or corroded, rubber components like suspension bushes and coolant hoses can crack from lack of movement, and fuel system seals may have degraded. The BMW N47 diesel engine in this model is known for timing chain stretch and high-pressure fuel pump issues at higher mileages, though this vehicle's lower mileage provides some protection. Tyre condition and battery health should also be assessed given the sporadic usage pattern.