2009 BMW 520 2.0L Diesel · PF09 FFH

A clean and stable MOT record defines the mechanical outlook for this seventeen-year-old BMW 520, with no advisories or component defects logged across the available testing history. The most recent examination on 13 October 2023 resulted in a pass with no defects recorded, mirroring the outcome of the prior test exactly one year earlier. Earlier still, a fail was recorded on 7 October 2022, followed only seven days later by a pass on 14 October 2022, which strongly indicates a minor rectification carried out between the two visits rather than any underlying structural or mechanical deterioration. This pattern of immediate remediation and subsequent clean passes suggests the vehicle has remained broadly roadworthy and compliant with statutory testing standards, though the absence of advisories offers little insight into wear progression on consumable or maintenance-sensitive items. Annual mileage of approximately 10,275 miles over the vehicle's seventeen-year life sits firmly within the typical usage band for a car of this age, indicating neither prolonged periods off the road nor sustained heavy use. The four recorded tests span 2021 to 2023, leaving a substantial gap between the 2021 examination and the earlier failure and pass in 2022, with no test data available prior to that. This gap limits visibility into the car's earlier life, particularly regarding any rust development, underfloor corrosion, or suspension wear that may have occurred in its first decade. Mechanically, the consistent year-on-year testing cadence between 2021 and 2023 suggests regular use, which helps mitigate risks associated with standing starts such as seized brake calipers, dried seals, or deteriorated coolant, though the high accumulated mileage of 174,667 miles means drivetrain components will inevitably be approaching or past their expected service life. Given the mileage and age, particular attention during a pre-purchase inspection should focus on areas not captured by the MOT history. On a test drive, listen for clonking or knocking from the front suspension over uneven surfaces, which would point to worn control arm bushes or top mounts common on the E60 chassis. Check for any pulling under braking or vibration through the steering wheel, which could indicate warped front brake discs or uneven pad wear resulting from binding calipers, both frequent issues at this mileage. Inspect the engine bay for any signs of oil misting or residue around the valve cover gasket and oil filter housing, as these seals commonly harden and weep on high‑mileage BMW engines of this era. Examine the underbody thoroughly for corrosion, particularly around the rear wheel arches, suspension mounting points, and any structural seams, as the absence of corrosion advisories on recent MOTs does not guarantee the condition of areas not directly visible to the tester. Verify that the cooling system has been maintained with a recent water pump and thermostat replacement, as these are known service items on this engine type. Test the automatic transmission for smooth, timely gear changes and listen for any shudder on pull-away, which can indicate mechatronic wear or low fluid levels. Finally, confirm that the timing chain, guides, and tensioner have been addressed, as failure of these components on high-mileage N47 or N20 engines can be catastrophic and represents a significant residual risk that the MOT history alone cannot detect.