2018 Mercedes-Benz Sprinter 2.1L Diesel · KN18 ABU

The most recent MOT test on 2025-10-28 confirms the vehicle remains roadworthy, though with persistent minor issues in the steering and suspension. The trend over the past three tests shows a pattern of recurring free play in the steering rack and ball joint wear, particularly on the offside front lower suspension arm. While none of these faults have escalated into major failures, the consistent advisories suggest deferred maintenance rather than acute failure. The 2024 October failure on the nearside front lower suspension arm—just 121 miles before the next test—indicates a component that was likely replaced or repaired, yet the offside counterpart remains under close observation. The recorded mileage of 174,096 miles over eight years equates to an average of 21,762 miles annually, which is unusually high for a vehicle of this age. The gap between the 2023 and 2022 tests—19,642 miles in a year—suggests either intensive commercial use or prolonged periods of operation without extended rest. The 2024 tests, spaced just 12 days apart, further imply either a rushed repair or a test retake after an initial failure. This pattern raises questions about whether maintenance intervals were consistently adhered to or if critical components were overlooked until they reached MOT thresholds. A buyer should prioritise a thorough inspection of the front suspension components, particularly the steering rack and ball joints, as these have been flagged repeatedly. The steering rack’s free play at the wheel suggests internal wear, while the ball joints—especially the offside front lower arm—show signs of gradual degradation. The 2022 front brake disc advisories warrant checking for uneven wear or scoring, as pitting can compromise braking performance over time. Structural elements like the chassis and subframe should also be examined for corrosion, particularly around wheel arches and suspension mounts, given the vehicle’s age and mileage. Documented advisories alone cannot confirm whether repairs were properly executed, so visual and functional checks are essential.