2018 BMW 640 3.0L Diesel · HK18 AEN

The most recent MOT test on 2025-05-20 confirms this 2018 BMW 640 remains roadworthy, with no defects recorded at 29,872 miles. The consistent pass history across five annual tests—spanning May 2022 to May 2025—suggests a stable maintenance trend, though the duplicate entry for May 2023 (both pass and fail) appears anomalous and likely a data error. No advisories or recurring faults have been logged, indicating the tester did not identify any latent issues requiring attention. However, the final test date is now 14 months old, exceeding the standard 12-month MOT validity period, which introduces a window of uncertainty over any intervening wear or neglect. The recorded mileage of 29,872 miles over eight years—approximately 3,734 miles annually—is unusually low for a vehicle of this age, suggesting either minimal use or prolonged periods of inactivity. The gap between tests remains consistent at around 12 months, with no sudden spikes or drops in mileage between May 2022 (19,159 miles) and May 2025 (29,872 miles). While low mileage generally correlates with reduced wear on high-stress components like suspension bushes, coil springs, or drivetrain synchros, it also raises questions about fluid changes, brake pad replacement cycles, and potential corrosion risks from standing water or lack of movement. Given the clean MOT record, a buyer should prioritise an independent inspection of the brake system, particularly the rear calipers and discs, as binding brakes were not flagged in any test but can develop silently over time. The suspension—including front and rear bushes, struts, and coil springs—should be checked for uneven wear or leaks, especially if the vehicle has spent extended periods stationary. Corrosion around wheel arches, subframes, and exhaust mounts warrants scrutiny, as low mileage does not preclude rust progression in damp conditions. Finally, verify the service history for oil changes, timing belt (if applicable), and fluid levels, as these are not MOT-tested but critical to long-term reliability.