2009 Mercedes B-Class 2.0L Diesel · MT59 AEN

The vehicle is currently roadworthy, but the maintenance history indicates a trend of worsening mechanical neglect. While it passed its most recent test in January 2026 at 162,481 miles, this followed just four days after a failure that revealed multiple significant defects. The presence of recurring advisories related to the braking system, exhaust, and drive shaft components suggests that the owner is only addressing the minimum legal requirements to pass the MOT rather than performing preventative maintenance. At 162,481 miles, this 17-year-old B-Class has averaged approximately 9,558 miles per year, which is consistent with typical UK usage patterns for its age. However, the interval between tests shows fluctuations. Between December 2023 and December 2024, the car covered 7,174 miles, yet it accumulated another 8,682 miles in the five months leading up to the January 2026 test. This recent spike in mileage correlates with the rapid deterioration of components such as the CV boot and windscreen wiper blades. A buyer must conduct a thorough inspection of the braking and suspension systems. The record consistently flags corroded offside front brake pipes and an imbalanced rear axle, which indicates potential caliper sticking or deep-seated pipe corrosion. The fractured offside rear coil spring noted in late 2024 is a sign that the suspension components are reaching the end of their service life. Furthermore, the ongoing corrosion on the center exhaust requires a close look to ensure structural thinning has not progressed to the point of imminent failure. The recent January 2026 failure also highlighted that engine and body covers are restricting inspection, which is a common tactic to hide oil leaks or mounting rust from the tester. The buyer should verify that the nearside front CV boot has been replaced and is intact, as a split boot quickly leads to expensive drives joint failure. Given the high mileage and the frequency of minor electrical and mechanical failures, the vehicle is likely to require further investment to maintain reliable roadworthiness.