2015 Mercedes-Benz B-Class Electric · LM65 PCF

The most recent DVSA examination on 29 December 2025 returned a pass with no defects recorded, which represents a positive outcome and indicates the vehicle was presented in a roadworthy condition at that time. However, evaluating the broader maintenance trend requires looking at the progression of advisories and prior failure. Following the 2022 failed test, which was primarily related to lighting and tyre condition, the vehicle passed in 2023 with advisory notices concerning brake disc wear on both axles. The 2024 test noted continued brake disc deterioration at the rear alongside a rear brake imbalance advisory and front tyre sidewall damage. The transition from these accumulating advisories to a completely clean 2025 pass suggests either timely corrective maintenance or the issues falling just outside advisory thresholds. Prospective buyers should interpret this as a vehicle with a pattern of brake wear that warrants close inspection, rather than assuming the recent clean test indicates the braking system has been overhauled. The recorded mileage of 54,287 miles over approximately 11 years equates to an average annual usage of around 4,935 miles, which is substantially below the national average. This low-mileage profile suggests either limited regular use or extended standing periods between journeys. Low annual mileage reduces wear on major drivetrain components but introduces calendar-based degradation concerns, as certain materials and fluids deteriorate with age regardless of use. Rubber components, lubricants, and the 12V battery all degrade over time, making age-related checks particularly important for this vehicle. The relatively consistent MOT dates indicate the vehicle has been kept registered and used periodically, though the gaps between tests suggest intermittent rather than daily use. Given the recurring brake-related advisories across multiple tests, particular attention should be directed to the braking system during physical inspection and test drive. The notes regarding pitted and scored brake discs indicate surface corrosion and wear that can progress to juddering under braking, reduced stopping efficiency, and potential caliper binding if the corrosion becomes severe. A test drive should include steady braking from moderate speed to check for pulsation through the pedal or steering wheel, and a warm-up cycle with several stops from around 40 mph to assess for pulling to either side, which would confirm the previously noted rear imbalance. The discs themselves should be inspected for lipping at the outer edge, and the caliper sliding pins and guide bushes examined for free movement, as seized calipers are a common consequence of low-use vehicles in the UK climate. Beyond the braking system, the low-mileage and 11-year age profile necessitates thorough age-related inspection. Tyres should be examined closely for sidewall perishing and cracking, which can occur even with adequate tread depth on older vehicles, as noted in the 2024 advisory regarding front tyre sidewall damage. Brake discs across both axles are likely to show surface corrosion from standing, which may lift during use but could also indicate binding calipers if present on the inner face. The 12V battery should be load-tested, as batteries beyond five years frequently fail without warning, particularly in vehicles used infrequently. Fluid condition is equally important: brake fluid absorbs moisture over time and should be replaced every two to three years regardless of mileage, while coolant and automatic transmission fluid in this Mercedes-Benz B-Class also degrade with age. Verifying full service history with stamps confirming time-based rather than purely mileage-based servicing will be essential, and inspecting the underbody for surface corrosion, exhaust integrity, and any oil leaks from the engine or transmission seals should form part of any pre-purchase evaluation.