2006 Mercedes-Benz C 2.1L Diesel · KS56 BFU

The most recent MOT test on November 21, 2025, confirms this Mercedes-Benz C remains roadworthy with no defects recorded at 146,748 miles. Over the past four annual tests, there has been a consistent pattern of compliance—no advisories or failures—though the single failure in November 2023 stands out as an anomaly. That test, conducted just five days before passing, suggests either a minor oversight or a temporary issue resolved before the retest. The absence of recurring faults implies the vehicle has been maintained at a baseline level, though the lack of advisories does not guarantee hidden wear in high-stress components like suspension bushes or drivetrain joints. The mileage progression shows steady usage with approximately 5,428 miles accumulated annually since the 2022 test, aligning with the average for a vehicle of this age. There is no evidence of prolonged neglect—no gaps exceeding a year between tests—and no abrupt spikes in mileage that would indicate aggressive driving or deferred maintenance. The 2023 failure, however, occurred within just 14 miles of the previous test, which could hint at a minor, intermittent issue rather than a broader trend. Overall, the mileage record reflects typical long-term ownership without extreme wear patterns. Given the clean MOT history, an in-person inspection should prioritise areas not directly tested by the MOT but critical for structural integrity and longevity. Focus on the suspension system—particularly the condition of coil springs, bushes, and dampers—for signs of fatigue or corrosion, as these are often overlooked until failure. The braking system, while not flagged, should be checked for uneven wear on discs or calipers, as binding or excessive noise would have been noted in previous tests. Examine the underbody for corrosion around wheel arches and sills, especially given the vehicle’s age, and inspect the exhaust system for leaks or sagging supports. The 2023 failure, though resolved, warrants scrutiny of the electrical or minor mechanical systems that might have triggered it, such as faulty sensors or loose connections.