2020 Mercedes-Benz GLB 200 AMG Line Premium D A 1.9L Diesel · OY70 XSW

The vehicle presents a stable and reassuring maintenance trend, culminating in a completely clean MOT pass on 2 October 2025 at 39,984 miles. The tester recorded zero advisories or defects on that most recent test, indicating that all major safety and emissions systems were functioning correctly at that point. The absence of recurring mechanical failures across the three-test history suggests consistent servicing rather than reactive repairs. A single advisory appeared in October 2024 at 31,384 miles, but it related solely to a child seat obstructing the nearside rear adult belt inspection, not a mechanical fault. The mileage accumulation is remarkably linear. Between October 2023 and October 2024, the car covered 8,335 miles, and between October 2024 and October 2025, it added a further 8,600 miles. This steady annual rate of roughly 8,500 miles per year is slightly above the average implied by the current odometer reading, yet the consistent pattern points to regular daily use rather than prolonged standing or sudden high-mileage bursts. The MOT record is sparse in the best possible sense, with only three entries over the life of the vehicle, all resulting in passes. Despite the clean MOT record, a prospective buyer should still conduct a thorough physical inspection. The 2020 GLB 200 uses a MacPherson strut front and multi-link rear suspension, and at this mileage, front lower arm bushes and rear trailing arm bushes should be checked for perishing or play. Brake disc thickness and pad condition deserve attention, particularly the rear calipers, which are a common sticking point on Mercedes-Benz SUVs of this era. The diesel particulate filter and EGR system should be assessed for soot loading, especially if the mileage includes a significant proportion of short urban trips. Structurally, the underbody and inner wing arches should be inspected for corrosion, a known concern on GLB models used in areas with winter road salt. Tyre condition and date codes should be verified, as uneven wear on the rear axle could indicate alignment drift or worn suspension linkages. The clean MOT record provides confidence, but a pre-purchase inspection remains essential to confirm that the vehicle's mechanical integrity matches its paper history.