2012 Mercedes-Benz B-Class 1.6L Petrol · NL62 NWS

The 2012 Mercedes-Benz B-Class presents a stable and reassuring mechanical picture based on the official DVSA MOT record. The most recent test, conducted on 4 September 2025 at 32,971 miles, passed with zero defects recorded. This clean outcome is not an isolated event but part of a consistent pattern. The vehicle has passed its last four consecutive MOTs, with the only blemish being a single failed test on 15 August 2022 at 25,751 miles, which was followed by a pass on the same day, indicating the issue was rectified promptly. The maintenance trend is demonstrably stable and improving, reflecting a vehicle that has been kept in sound working order with no recurring faults or advisories. The mileage profile is exceptionally low for a vehicle of this age. At roughly 2,355 miles per year, the usage is well below the UK average. The record shows a steady, gradual accumulation of miles, with a notable jump of 3,312 miles between the September 2024 test (29,659 miles) and the September 2025 test (32,971 miles), compared to the more modest 2,819 miles covered in the preceding year. This recent uptick in usage is not a concern in itself but confirms the vehicle is being driven regularly rather than sitting idle for extended periods, which can cause its own issues like brake seizure and perished rubber components. Despite the clean MOT history, a low-mileage vehicle of this age demands a careful physical inspection. The absence of advisories is encouraging, but it does not guarantee the absence of age-related deterioration. A buyer should meticulously check the condition of all suspension bushes and coil springs for perishing and cracking, as these degrade with time as much as mileage. The braking system, particularly the rear calipers and discs, should be inspected for signs of binding or surface corrosion, a common issue on lightly used cars. Tyre age and sidewall condition are critical, as even ample tread depth is irrelevant if the rubber is over five to six years old and showing signs of crazing. Finally, a thorough underbody inspection is essential to assess structural integrity. The subframes, sills, and suspension mounting points must be checked for corrosion, which can be exacerbated by long periods of standing. The exhaust system should be examined for leaks and corrosion, paying close attention to the flexi-joint and mountings. While the MOT record is a strong positive indicator, it is a snapshot in time. A pre-purchase inspection by a qualified technician is the only way to verify that this vehicle's mechanical condition aligns with its exemplary paperwork.