2010 BMW 520 2.0L Diesel · X5 OYS

The 2010 BMW 520 presents as currently roadworthy with a valid MOT, but the recorded history indicates a deteriorating maintenance trend, particularly regarding consumable wear items. The most recent test in February 2026 at 158,466 miles passed with two notable defects: an oil leak classified as not excessive and rear brake pads wearing thin. This follows a similar advisory for rear brake pad wear in the February 2024 test, suggesting a recurring issue that has not been fully rectified over a two-year period. Annual mileage calculation shows approximately 9,900 miles per year, which is typical for the vehicle’s age. However, the recorded mileage accumulation reveals a significant spike in recent use. Between the February 2025 test (139,915 miles) and the current February 2026 test (158,466 miles), the car covered 18,551 miles in one year, substantially higher than the roughly 10,000-mile increments seen in prior years. This recent period of higher utilisation will have accelerated wear on components already flagged as wearing. A buyer must prioritise a detailed inspection of the rear braking system and suspension. The repeated advisory for thin rear brake pads over multiple tests points to either exceptionally heavy rear brake usage or, more likely, neglected maintenance where pads were not replaced when first advised. This can lead to disc damage and binding calipers. The history of rear tyres wearing on the edge (2024 and 2022) strongly suggests a persistent wheel alignment or suspension geometry issue, which also contributes to uneven tyre wear and places additional stress on suspension bushes and linkages. The 2021 advisory regarding rear shock absorbers with light oil misting should be investigated, as this is a precursor to failure; the shocks may now be ineffective, compromising handling and tyre contact. Finally, while the structure passed all tests, the age and mileage necessitate a thorough examination for structural corrosion, particularly around the rear subframe mounting points and sills, common areas for this model. The oil leak noted in 2026 requires identification of its source—a minor gasket or a more serious seal—as ongoing leaks can degrade other components. The combination of high recent mileage, unresolved recurring advisories, and ageing suspension components means the vehicle requires immediate and comprehensive remedial attention to ensure reliable and safe operation.