BMW 6 SERIES2018 · 3.0L Diesel

The vehicle’s most recent MOT test on 2025-10-20 , just nine months ago at 72,266 miles , confirms it passed without any defects, suggesting current roadworthiness. The absence of advisories or failures across the last four tests—including a duplicate entry in 2024-10-17 —indicates no recurring mechanical issues were detected by the tester. However, the 2024-10-17 failure (though immediately retested and passed) is anomalous and warrants scrutiny, particularly if it involved non-visible components like emissions or electrical systems that might not show external signs of wear. Mileage progression reveals a consistent annual average of 9,033 miles , typical for a vehicle of this age and class. The gap between tests— 12 months —is standard, with no evidence of prolonged neglect or excessive wear from rapid mileage accumulation. The 2022-2023 interval saw 13,777 miles in a year, which is slightly higher but not alarming, while the 2023-2024 period dropped to 10,394 miles , suggesting variable usage rather than a pattern of neglect. The lack of pre-MOT servicing records means some wear items—such as brake pads, suspension bushes, or timing belt components—could be approaching their expected service intervals. Given the clean MOT history, a buyer should prioritise an independent inspection of suspension components , particularly the rear coil springs and bushes , as BMW 6 Series models are prone to bush deterioration over time. The 2024 failure —if it involved exhaust emissions or catalytic converter efficiency —could indicate potential DPF or EGR system issues , common in diesel BMWs, which may not be immediately visible. Brake discs and calipers should be checked for uneven wear or binding, especially if the vehicle has experienced aggressive driving. Structural corrosion around wheel arches, sills, and the subframe is also critical, given the vehicle’s age; rust can compromise structural integrity without obvious external signs. Finally, fluid levels and condition —brakes, power steering, and engine oil—should be verified, as these are not MOT-tested but directly impact long-term reliability.