2008 Mercedes-Benz CLS 3.0L Diesel · LM58 VFO

The most recent MOT test on November 27, 2023, confirms this 2008 Mercedes-Benz CLS passed without any recorded defects, though it was preceded by a failed test just four days earlier at 165,479 miles—an unusual but technically compliant sequence. The pattern over the past three years shows no consistent mechanical failures, as all tests either passed or were technically valid failures (where no defects were logged). However, the lack of advisories or repeated issues suggests the vehicle has not undergone routine maintenance beyond statutory MOT requirements. This implies a maintenance history that may have been reactive rather than proactive, with no evidence of preemptive checks for wear items like suspension bushes, coil springs, or brake caliper binding—components that often fail silently in high-mileage vehicles. The recorded mileage of 165,480 miles over 18 years equates to an average of approximately 9,200 miles annually, which aligns with typical usage for this age. There are no significant gaps in testing that would indicate prolonged neglect, though the rapid accumulation of just 2,837 miles between the October 2022 and November 2023 tests suggests either intensive use or a short period of inactivity before the latest test. The consistency in mileage increments also rules out extended periods of storage, which could have masked underlying issues like corrosion or seized suspension components. Given the absence of recorded defects or advisories, the most critical areas for an in-person inspection should focus on high-wear items that often fail without warning. The suspension—particularly the rear coil springs and bushes—should be examined for uneven sagging or excessive play, as these can develop silently over 165,000 miles. Brake calipers and binding points should be checked for corrosion or seized pistons, especially if the vehicle has seen wet or coastal exposure. Structural integrity, particularly around the wheel arches and sills, must be scrutinised for corrosion, as Mercedes-Benz models of this era are prone to rust-related failures in these areas. Finally, the exhaust system should be inspected for leaks or excessive rust, as catalytic converter failures are common in high-mileage diesel models, and a failed emissions test could indicate deeper drivetrain issues.