2015 BMW 520 2.0L Diesel · BJ65 FBA

The most recent MOT test on 2025-05-06 confirms the vehicle remains roadworthy at 117,639 miles, with no defects recorded over the past three consecutive annual tests. This indicates a stable maintenance pattern, though the single failure in September 2022—despite being retested immediately—suggests a minor oversight rather than a systemic issue. The absence of advisories or recurring faults across the last four tests implies no ongoing mechanical concerns, but the 2022 failure warrants scrutiny of components that might have been overlooked during that period. Mileage progression shows consistent usage, averaging around 10,700 miles annually, which aligns with typical wear expectations for a vehicle of this age. The gap between the 2022 failure and the subsequent September 2022 retest (just two days apart) suggests a quick resolution, though the lack of recorded defects on the retest does not clarify whether the issue was cosmetic or mechanical. No extended periods of inactivity are evident, ruling out potential neglect-related wear such as seized suspension joints or degraded fluids. Given the clean MOT history, priority should be given to inspecting high-wear items that often fail without warning: the rear brake calipers and discs (noted for binding in some BMWs of this era), suspension bushes and coil springs for excessive play or corrosion, and the subframe and sills for structural rust—common in high-mileage models. The 2022 failure, though resolved, hints at potential inattention to lesser-known components like the exhaust system or underbody seals, so a thorough check of these areas is advisable. Fluid levels and condition (brakes, power steering, transmission) should also be verified, as these are rarely flagged in MOTs but critical for long-term reliability.