2016 Mercedes-Benz CLS 3.0L Diesel · LS16 MBO

The 2016 Mercedes-Benz CLS has demonstrated a consistent roadworthiness record over the past two years, with the most recent MOT test on 2025-07-22 at 82,513 miles resulting in a clean pass and no advisories. This suggests the vehicle has avoided significant mechanical or structural failures during its most recent service intervals. The absence of defects across the last four tests—including the 2024 and 2023 examinations—indicates that, at least on paper, the vehicle has been maintained at a level sufficient to meet DVSA standards. However, the single failure in October 2022, despite the same mileage, warrants scrutiny, as it represents an outlier in an otherwise stable pattern. The mileage progression reveals a steady accumulation of approximately 8,250 miles annually, which aligns with typical usage for a vehicle of this age. There are no abrupt jumps or prolonged stagnation periods that would raise immediate concern, though the gap between the 2022 failure and subsequent pass—just 42 days—implies either a swift correction or a minor oversight that was quickly addressed. The lack of advisories in recent tests further supports that major components like suspension bushes, coil springs, or brake calipers have not been flagged for imminent failure. Given this history, a prospective buyer should prioritise a thorough inspection of the suspension system, particularly the rear axle where binding calipers or worn bushes could develop without warning. The brakes, while never failed, should be assessed for uneven wear or corrosion on the discs and pads, especially if the vehicle has experienced wet or salted roads. Structural integrity, particularly around the wheel arches and sills, should be checked for corrosion, as this is a common issue for Mercedes-Benz models of this era. The absence of advisories in recent tests does not preclude gradual wear, so attention to fluid levels—brakes, power steering, and coolant—will be critical. Finally, the engine bay should be inspected for leaks or degraded hoses, as these are often silent until they escalate.