2017 Mercedes-Benz B-Class 2.1L Diesel · EY66 AEU

The Mercedes-Benz B-Class in question presents a remarkably clean MOT history, with the most recent test on 20 January 2026 at 18,271 miles showing no defects—an outcome mirrored across all prior annual inspections since 2023 . The sole anomaly is the 2023-01-19 failure , which, despite no recorded defects, suggests a procedural or administrative error rather than a mechanical issue. This consistency indicates a vehicle that has either been meticulously maintained or, more likely, driven infrequently enough to avoid significant wear. There are no advisories or recurring faults to suggest deteriorating components, and the absence of major defects in structural integrity, brakes, or emissions over three years of testing is unusual for a vehicle of this age and mileage. The pattern here is stable, with no signs of worsening conditions. The mileage data reveals a striking anomaly: 2,030 miles per year over nine years, which is exceptionally low for a car of this vintage. Between 2023 (13,209 miles) and 2026 (18,271 miles) , the vehicle accumulated just 5,062 miles in three years , implying either very light use or prolonged periods of disuse. Such low mileage reduces wear on consumables like tyres, brakes, and suspension, but it also raises questions about fluid changes, battery health, and potential corrosion from infrequent operation. The lack of mileage accumulation could also mean the odometer has been tampered with, though the MOT records provide no evidence of that. Without further service history, a buyer should verify whether the low mileage is genuine or artificially suppressed. Given the absence of defects in the MOT records, the primary focus for a prospective buyer should be on hidden wear from disuse . The vehicle’s age and low mileage suggest potential issues with battery condition, fluid degradation (brake fluid, coolant, differential oil), and corrosion in less accessible areas —such as wheel arches, suspension mounts, or exhaust components—due to prolonged inactivity. While the MOT history clears it of immediate mechanical failures, a pre-purchase inspection should include a comprehensive fluid check, battery load test, and close examination of suspension bushes, coil springs, and brake calipers for signs of seizing or corrosion. The lack of recorded advisories does not eliminate the need for a thorough mechanical assessment, particularly in a vehicle that may have sat unused for extended periods.