2015 BMW 640 3.0L Diesel · LC15 WDG

The 2015 BMW 640 presents a stable and well-maintained roadworthiness record. The most recent MOT, conducted on 20 October 2025 at 41,676 miles, passed with zero defects, indicating all safety-critical systems were functioning within DVSA tolerances at that time. The maintenance trend is clearly improving. A single failure occurred on 10 October 2022 at 35,081 miles for a minor nearside headlamp aim issue, which was rectified and passed on the same day. Since that date, four consecutive clean passes suggest consistent upkeep and no emerging mechanical or structural faults. The vehicle's mileage pattern is notably low for an 11-year-old car. Between the 2022 failure at 35,081 miles and the 2025 pass at 41,676 miles, it covered just 6,595 miles over three years, averaging around 2,200 miles annually. The earlier period from 2022 to 2024 shows a similar gentle accumulation of roughly 1,900 to 2,000 miles per year. This is well below the UK average and points to light, regular use rather than prolonged standing, which can itself cause issues like flat-spotted tyres, seized brakes, or dried-out seals. The annual October testing pattern is consistent and suggests disciplined ownership. Despite the clean MOT history, a buyer should still carry out a thorough in-person inspection. Low-mileage vehicles that sit for extended periods can develop latent issues not always caught during a stationary MOT check. Examine the tyre sidewalls for age-related cracking, even if tread depth appears adequate. Inspect the underside for corrosion on subframes, brake lines, and suspension mounting points, as BMW models of this era can be susceptible to surface rust in these areas. Check the condition of the exhaust system and DPF, since short-journey use can lead to diesel particulate filter clogging and elevated emissions over time. A test drive is essential to verify that the automatic transmission shifts smoothly through all gears and that the adaptive suspension, a common feature on the 640, operates without excessive bounce or noise. Listen for any knocking from the front suspension over speed bumps, which could indicate worn control arm bushes not yet severe enough to fail an MOT. The headlamp aim fault from 2022 was minor and resolved, but confirming both headlamp units are free from moisture ingress and that LED or xenon levelling systems function correctly remains prudent. Overall, the documentary record is reassuring, but hands-on verification of these mechanical and structural components will confirm whether the vehicle's condition matches its clean paperwork.