2006 Mercedes-Benz S-Class 3.0L Diesel · H11 AAH

The most recent MOT test on 2025-04-02 confirms the vehicle remains roadworthy, with no defects or advisories recorded. This reflects a stable maintenance trend over the past three years, as all subsequent tests—including the 2024-02-21 and 2022-09-13 examinations—also passed without failings. The single 2022-09-12 failure (though no defects were logged) suggests either a minor administrative oversight or a brief period of non-use, given the immediate passing the following day. No recurring issues have been documented, which is unusual for a vehicle of this age and mileage, though this does not preclude hidden wear or deferred maintenance. The recorded mileage of 177,299 miles over approximately 20 years equates to an average of 8,865 miles annually, a rate consistent with typical use for its class. There are no significant gaps in service intervals, though the 2021-09-07 to 2022-09-12 period shows a 12-month gap between tests, which is permissible but suggests the vehicle may have been stationary or lightly used during that time. The lack of advisories or defects in recent tests implies no urgent mechanical concerns, but the absence of service records means critical components like timing belts, suspension bushes, or transmission fluid changes cannot be confirmed. Given the clean MOT history, a buyer should prioritise an independent inspection of high-wear items such as the suspension system—particularly coil springs, bushes, and shock absorbers—given the vehicle’s age. The brakes, including caliper binding, disc thickness, and rotor corrosion, warrant thorough examination, as do the exhaust system for leaks or structural fatigue. The engine bay should be checked for oil leaks, coolant deterioration, and the integrity of hoses, while the underbody should be scrutinised for rust penetration, especially around the sills, subframe, and wheel arches. The 2022 failure, though unexplained, may warrant inquiry into whether the vehicle was driven during that period, as prolonged inactivity can exacerbate mechanical issues.