2009 Mercedes CLS 3.0L Diesel · WF09 XEM

The vehicle presents a concerning roadworthiness profile with a clear trend of deferred maintenance on critical safety components. While it passed its latest test in December 2025 at 147,033 miles, this followed a significant failure just 12 days prior. The record reveals a persistent failure to address corroded front brake pipes and pitted brake discs, which were flagged across multiple years. The recurring presence of oil leaks and seepage suggests that the owner is performing only the minimum repairs required to pass an MOT rather than pursuing preventative mechanical care. At 147,033 miles over 17 years, the Mercedes has covered an average of approximately 8,650 miles per year, which is consistent with a premium grand tourer of age. The data shows consistent usage, with a 5,000-mile gap between July 2024 and December 2024, and another 8,500-mile interval between the previous tests. However, the steady mileage does not offset the age-related degradation of rubber components and metalworkwork lines, which is clearly evident in the inspection history. A buyer must conduct a thorough physical inspection of the braking and steering systems. The tester has repeatedly identified corrosion on the front brake pipes and deterioration in the rear hoses, indicating a high risk of future fluid failure. The history also notes previous play in the steering rack inner joints, suspension arm ball joints, and worn arm bushes as of 2023. The buyer should verify if these suspension components were actually replaced, as neglected bushes often lead to unpredictable handling and accelerated tyre wear. The power steering seepage and persistent oil leaks require immediate attention to determine if they are minor seals or catastrophic failures. Furthermore, the 2024 failure regarding the supplementary restraint system lamp must be double-checked to ensure the airbag system is fully functional. Given the pattern of allowing tyres to reach the legal limit in 2025, the previous owner likely overlooked basic consumables until a failure was imminent, suggesting further hidden faults may exist.