2009 BMW 520 2.0L Diesel · SF09 UPJ

The vehicle is currently roadworthy, but the maintenance trend indicates a shift toward reactive rather than proactive repairs. While the most recent test in October 2025 at 139,441 miles resulted in a pass, it followed a failure just twelve days prior. That failure revealed multiple immediate issues including non-functional headlamp bulbs and an excessively worn offside front suspension arm ball joint. The persistence of a central front oil leak across multiple tests suggests a known weeping seal that the owner has monitored but perhaps not yet sought to rectify. At 139,441 miles over 17 years, the vehicle averages approximately 8,200 miles per year, which is consistent with typical UK usage for an executive saloon of this age. The data shows consistent operation, with roughly 11,600 miles covered between the August 2023 and 2024 tests, and another 3,600 miles between September 2024 and October 2025. This regularity suggests the car does not sit for long periods, which helps prevent the degradation of rubber components and internal seals. A buyer must physically inspect the front suspension thoroughly, as the previous failure of the ball joint indicates that steering components are reaching the end of their service life. The recurring oil leak requires a close look to determine if it is a simple valve cover gasket or a more costly front crank seal or oil filter housing failure. Given the 2023 advisories regarding deteriorated rear brake hoses and uneven tyre wear, the buyer should check for cracking in the rubber lines and ensure the rear alignment is not causing premature tyre scrub.