2009 Mercedes Viano 2.1L Diesel · KX09 YHA

The vehicle currently holds a roadworthy status, but the maintenance history indicates a trend of structural and mechanical degradation. While it passed its most recent test in July 2025 at 365,042 miles, this followed a failure just six days prior. The failure revealed a critical fuel tank leak which appears to have been addressed, yet the re-test also highlighted that the parking brake efficiency only marginally met the legal threshold, suggesting the braking system is nearing the end of its current effective life or requires urgent mechanical adjustment. At 365,042 miles, this 17-year-old Viano has covered significant ground, averaging over 21,000 miles annually. The data shows a notable surge in usage between July 2024 and July 2025, where the vehicle covered approximately 8,000 miles in less than ten months. This high intensity of use is consistent with the wear observed on consumables like the tyres noted in 2022, but such high mileage also places extreme strain on the drivetrain, suspension components, and structural mounting points. A buyer must prioritise a thorough inspection of the chassis and underbody. The record consistently flags corrosion on the nearside and offside front vehicle structures near mounting points across 2024 and 2025. Although these were not classified as serious failures to security yet, the presence of rust in these specific areas suggests an ongoing process that will accelerate. Furthermore, the previous failure for a seriously weakened anti-roll bar in 2022 indicates the suspension's lateral stability components are susceptible to rapid corrosion. The persistent oil leak mentioned in the July 2025 test requires close monitoring to determine if it is a minor seal failure or escalating. The marginal performance of the parking brake necessitates a physical inspection to check for binding calipers, worn adjuster cables, or thin discs. The combination of high mileage and recurring structural issues suggests that the vehicle is entering a stage of its lifecycle where significant mechanical repairs may become frequent.