2005 Mercedes CLS 5.0L Petrol · KY55 XRW

The vehicle’s most recent MOT on 2026-05-19 resulted in a pass, though it carried multiple advisories, including rust on front and rear suspension components and a defective rear exhaust mounting. This test followed a prior failure on the same date, suggesting unresolved issues. The recurring corrosion on suspension bushes, subframe mounts, and brake pipes indicates a persistent vulnerability to environmental degradation, while the exhaust system has shown repeated mounting defects. Structural concerns, such as corroded crashbar mounts and weakened seat belt anchorage in 2025, highlight long-term exposure to moisture or poor maintenance. Despite the recent pass, the pattern of rust and mechanical wear suggests a maintenance trend that remains unstable, with no clear resolution of critical faults. The vehicle’s mileage of 132,597 miles aligns with an average annual usage of 6,314 miles, which is typical for its 21-year age. However, the MOT records reveal inconsistent inspection intervals, with the 2024-12-10 test occurring 12 months after the 2023-11-22 test, followed by a gap of 17 months before the 2025-12-03 failure. This irregularity may indicate periods of neglect or infrequent servicing. Notably, the 2025-12-03 test identified severe corrosion on subframe mounts and an insecure rear crashbar, which could compromise structural integrity. While the 2024 and 2023 tests showed minor issues like worn tyres and brake disc scoring, the 2025 failure marked a significant escalation in critical faults, suggesting a deterioration in the vehicle’s condition over time. A buyer should prioritise inspecting the suspension system for further rust progression, particularly around subframe mounts and rear crashbar connections, as these areas have shown structural weakening. The exhaust system’s recurring mounting defects and corrosion on brake pipes require close examination for leaks or compromised integrity. Brake discs and tyres, which have repeatedly approached legal limits, should be assessed for wear and replacement history. Additionally, the presence of rust on front suspension components and seat belt anchorage points raises concerns about long-term safety and potential hidden damage. Physical verification of these elements is essential to confirm whether the vehicle’s condition has stabilised or continues to deteriorate.