2009 BMW 520 2.0L Diesel · BD59 ECT

The vehicle is currently roadworthy, but the maintenance trend shows a shift toward reactive rather than proactive care. While the MOT test in February 2026 at 250,048 miles passed, it followed a failure just one mile prior due to multiple mechanical defects. The presence of a failed parking brake, defective headlamp lenses, and a severely deteriorated CV boot indicates that the previous owner only addressed faults when necessary to pass the annual test, rather than replacing wear-and-tear components between intervals. At 250,048 miles over 17 years, this BMW has covered a high average of approximately 14,700 miles per year. The record shows consistent high-intensity use, with roughly 13,700 miles driven between February 2024 and February 2025, and another 15,843 miles between February 2025 and February 2026. This rapid accumulation places significant stress on the drivetrain, suspension, and braking systems. The clean record in February 2025 appears as an anomaly given the volume of failures noted in the subsequent test. A buyer must inspect the braking system closely, as all four brake discs were flagged as pitted or scored in the February 2026 test. This suggests long-term corrosion or infrequent use which often leads to binding calipers. The offside front drive shaft CV boot is a critical point that requires immediate replacement to prevent grease loss and eventual joint failure. Furthermore, the history of worn rear suspension arm bushes in 2023 and a distorted rear wheel in 2026 suggests the suspension geometry may be reaching the end of its functional life. A thorough check for play in the bushings and hubs is essential before purchase.