2000 Mercedes CL 500 5.0L Petrol · W659 FOW

The vehicle is currently roadworthy but the maintenance history shows a worsening trend regarding structural and exhaust integrity. While the most recent test in December 2023 at 176,885 miles passed, it followed a failure just one day prior due to an exhaust leak that prevented an emissions test. This failure also highlighted significant corrosion on the rear suspension component mounting areas and a rusty rear undercarriage. Although the tester classified the rust as not excessive, the presence of these issues indicates an active process of oxidation that has not been previously addressed. The mileage pattern is consistent with a low-use vehicle of this age, averaging approximately 6,800 miles per year. There is a significant gap in data between the November 2021 test at 109,774 miles and the November 2022 test at 175,890 miles, representing over 66,000 miles driven in a single year. This sudden burst of activity after a quieter period often accelerates the degradation of rubber components and bushings, as seen in the deteriorated bushes and brake hoses recorded in earlier years. A physical inspection must focus heavily on the rear undercarriage and suspension mounting points to ensure the corrosion noted in late 2023 has not progressed into structural thinning. The buyer should also examine the front lower arm ball joints and shock absorber mounts, which have shown recurring wear between 2020 and 2021. Furthermore, the exhaust system that caused the 2023 failure requires a thorough check to ensure the leak was properly rectified and not merely masked.