2020 Mercedes-Benz X 3.0L Diesel · SL14 BML

The vehicle’s most recent MOT test on 2026-01-23, at 45,656 miles, confirms it remains roadworthy with no defects recorded. Over the past three annual tests—all passing without fail—the record demonstrates a stable maintenance pattern, suggesting consistent compliance with UK roadworthiness standards. The absence of advisories or recurring issues implies that major components such as suspension bushes, coil springs, and binding calipers have not been compromised, nor has there been evidence of structural corrosion or exhaust emissions failures. However, the 2026 test is now just six months old, meaning a full inspection of high-wear items remains necessary before committing to purchase. The mileage progression reveals a steady accumulation of approximately 7,600 miles annually, which aligns with typical usage for a vehicle of this age. Notably, there is a gap of around 11 months between the 2024 test at 33,398 miles and the 2025 test at 33,703 miles, indicating the vehicle was stationary or lightly used during that period. This could suggest either reduced mileage in 2024 or a temporary storage period, but it does not raise concerns about deferred maintenance. The lack of any advisories or defects during these intervals further supports that the vehicle was not neglected during its inactivity. Given the clean MOT history, the primary focus for an in-person inspection should centre on consumable components that are not routinely tested under MOT but critical to long-term reliability. The brakes, particularly rear calipers and discs, should be checked for uneven wear or binding, as repeated failures in this area are often overlooked until they become serious. Suspension bushes and coil springs, while not flagged in past tests, warrant visual inspection for cracks or excessive play, especially given the vehicle’s age. Additionally, the underbody should be scrutinised for corrosion around wheel arches, sills, and the exhaust system, as these areas are prone to deterioration even when the vehicle passes MOT without structural advisories. Tyre condition, though not noted in past tests, should be verified for remaining tread depth and uniformity, as the lack of advisories could indicate previous owners relied on minimum legal limits.