2020 Mercedes-Benz GLB 220 AMG Line Prem D 4M A 1.9L Diesel · BU70 NLF

The latest MOT test conducted on 19 June 2026 resulted in a pass with no recorded defects or advisories. Looking at the historical data from 2023 through to 2026, the maintenance trend is exceptionally stable, showing a consistent ability to meet all DVSA safety and environmental standards without any recorded failures. This clean record suggests that the vehicle has been subject to a high standard of care and has not suffered from any significant structural or mechanical deterioration that would typically trigger an advisory notice. The recorded mileage of 33,166 miles for a six-year-old vehicle represents an average annual usage of approximately 5,528 miles, which is notably low for a diesel-engined Mercedes-Benz GLB. While lower mileage generally equates to less wear on the engine, transmission, and suspension bushes, it carries specific mechanical implications. Low-mileage diesel vehicles can sometimes suffer from carbon buildup in the exhaust system or EGR valves if they are primarily used for short, low-speed journeys that do not allow the engine to reach optimal operating temperatures. You should consider whether the vehicle has been used for longer motorway runs to ensure the diesel particulate filter remains clear and functional. Because the MOT history is entirely free of defects, your physical inspection should prioritize age-related degradation rather than wear-and-tear. Closely examine the tyres for any signs of perishing, such as cracking in the sidewalls or between the tread blocks, which can occur due to age and ozone exposure even if the tread depth remains high. During the test drive, pay attention to the braking system; check for any brake shudder or a pulling sensation to the side, which could indicate binding calipers or unevenly corroded brake discs resulting from infrequent use. You should also listen for any unusual clunks or knocks from the suspension, as rubber components can harden and lose their damping properties over time when not regularly cycled through their full range of motion. Finally, verify that the service history follows a time-based interval rather than solely a mileage-based one. Essential fluids such as engine oil, coolant, and brake fluid require replacement based on the calendar to prevent chemical degradation and moisture contamination. Check the condition of the 12V battery, as vehicles that spend significant time stationary are prone to battery discharge and sulphation, which can lead to unexpected starting issues. Confirming that the service book contains regular annual stamps will provide much greater confidence in the vehicle's long-term reliability than the low mileage alone.