2018 Mercedes-Benz B-Class 1.5L Diesel · JE55 DEX

This Mercedes-Benz B-Class has demonstrated a stable roadworthiness trend over the past three MOT cycles, with no defects recorded in any of the five tests spanning from March 2023 to March 2026. The most recent test on 19 March 2026—just four months ago—confirmed the vehicle passed without fail, reinforcing the absence of recurring mechanical issues. While the failed test on 18 March 2026 at identical mileage (44,774) appears anomalous, the lack of defects suggests this was likely a procedural or administrative oversight rather than a genuine mechanical failure. No advisories or major faults have been logged, indicating the vehicle has not experienced persistent problems with suspension bushes, coil springs, binding calipers, or structural corrosion—components that commonly fail in this model class. The mileage pattern reveals unusually low annual usage, averaging just 5,597 miles over eight years, which is well below the UK average for a vehicle of this age. Between March 2023 and March 2026, the odometer advanced by only 18,382 miles—a span of three years—suggesting prolonged periods of inactivity. This could imply storage-related risks, such as degraded suspension seals, battery corrosion, or fuel system contamination, particularly if the vehicle was left unattended for extended periods. The consistent 12-month intervals between MOTs further imply the owner adhered to legal requirements but did not engage in regular maintenance beyond statutory checks. Given the clean MOT history, a prospective buyer should prioritise an in-person inspection of high-wear consumables that are not MOT-tested, such as the condition of the brake pads and discs—particularly rear components, as binding brakes were flagged in the failed test. The suspension should be examined for dry or degraded bushes, especially at the rear, where wear often accelerates in low-mileage vehicles due to lack of use. Tyre tread depth, despite passing MOTs, may have deteriorated beyond the 1.6mm legal limit if the vehicle has been stationary for prolonged periods, as rubber degrades even without movement. Additionally, the battery and fuel system should be tested for signs of neglect, as low mileage increases the risk of corrosion in electrical connections and stale fuel in the tank. No major structural faults are suggested by the record, but a thorough check of underbody corrosion—common in urban environments—is advisable.