2021 Mercedes-Benz Sprinter 315 Progressive CDI 1.9L Diesel · KN71 UBV

The vehicle’s most recent MOT test on 2026-03-06 confirms it remains roadworthy, though the immediate preceding attempt on 2026-03-05—just a day earlier—failed without recorded defects. This anomaly suggests either a temporary administrative or procedural oversight rather than a mechanical issue, as no faults were logged in either test. The previous clean pass in 2025-03-21 at 51,714 miles indicates a stable maintenance trend over the past year, with no recurring advisories or defects to suggest worsening wear. The absence of any advisory notes in the latest tests also implies the tester did not identify any components requiring imminent attention, though this does not preclude hidden issues. The recorded mileage of 53,737 miles at the latest test aligns with a consistent annual average of approximately 10,747 miles, which is typical for a vehicle of this age. There are no significant gaps or abrupt spikes in mileage between tests, and the 2026 tests occurred within a single day, likely due to a scheduling or administrative quirk rather than a mechanical delay. The lack of failed tests between 2025-03-21 and 2026-03-06 further supports that the vehicle has not undergone prolonged neglect or deferred maintenance during this period. Given the clean MOT history, a buyer should prioritise an independent inspection of high-wear components that are not covered by the MOT test. Diesel particulate filters (DPF) in this model are prone to clogging, particularly if the vehicle has been driven intermittently or under city conditions, so verify no advisory notes exist for restricted exhaust flow. The suspension—especially coil springs, bushes, and dampers—should be checked for uneven wear or corrosion, as these are not routinely inspected during MOTs. Brake systems, while not failed in tests, warrant scrutiny for uneven pad thickness, warped discs, or binding calipers, which could indicate past neglect. Finally, inspect the underbody for corrosion around wheel arches and sills, as diesel vehicles are susceptible to salt-induced structural damage over time.