2009 BMW 520 2.0L Diesel · R29 AAL

This BMW 520 demonstrates a stable roadworthiness trend over the past three MOT cycles, with the most recent test on 4th October 2025 at 178,114 miles resulting in a clean pass and no advisories. The absence of recurring failures or advisories across all tests—including the duplicate entry in October 2023—suggests the vehicle has been maintained consistently enough to avoid immediate mechanical or structural concerns. However, the 18-month gap between the 2025 and 2024 tests, while not unusual, means critical components like brakes, suspension, and emissions systems have not been formally inspected for nearly two years. Given the vehicle’s age and mileage, this period could have introduced wear in areas not always flagged by MOT standards, such as subtle suspension bush deterioration or brake caliper binding that doesn’t always reach failure thresholds. The mileage progression of approximately 10,477 miles annually aligns with typical usage for a vehicle of this age, though the exact pattern is difficult to assess beyond the annual increments. The most notable observation is the duplicate MOT entries in October 2023, where the vehicle was tested twice within hours for the same mileage—155,588 and 155,589—both passing without defects. This anomaly suggests either a technical error in the system or a deliberate retest, but neither entry reveals any underlying issues. There are no evident gaps in service history to indicate prolonged neglect, though the lack of pre-MOT maintenance records means potential wear—such as in the exhaust system or electrical components—could have gone unaddressed between tests. Given the clean MOT history, a buyer should prioritise a thorough inspection of high-wear areas that often fall outside MOT scrutiny. Focus on the suspension, particularly the condition of coil springs, bushes, and dampers for signs of fatigue or corrosion, as these components degrade progressively and may not always trigger advisories until later stages. The braking system warrants close examination, including rear caliper binding (a common issue in older BMWs) and the integrity of brake discs for uneven wear or heat damage. Additionally, check for structural corrosion, especially around wheel arches, sills, and the subframe, as this can compromise structural integrity without being detected in a standard MOT. Emissions systems, while not failed here, should be tested for leaks or degraded catalysts, as they often deteriorate silently over time. Finally, verify the electrical system for intermittent faults, as these can develop between MOT tests and may not always be apparent during a static inspection.