2004 Mercedes-Benz CL 500 5.0L Petrol · PN54 AAU

This Mercedes-Benz CL 500 shows a stable roadworthiness trend, having passed its most recent MOT test on 24 May 2022 at 110,835 miles without any defects or advisories recorded. The absence of repeated failures or warnings suggests the vehicle has not undergone significant mechanical issues requiring MOT intervention. However, the test date is now over four years old, which exceeds the standard three-year MOT cycle for vehicles over three years old. This gap means critical components such as brakes, suspension, and emissions systems could have degraded beyond what a single test captures, particularly given the vehicle’s age and luxury engineering complexity. The recorded mileage of 110,835 miles over approximately 22 years equates to around 5,038 miles annually, a figure well below average for a vehicle of this age and class. While low mileage can indicate lighter use or prolonged storage, it also implies potential neglect in fluid changes, suspension maintenance, and other time-based wear. The lack of MOT history beyond 2022 means there is no data to confirm whether earlier tests revealed hidden issues—such as failing emissions, worn suspension bushes, or corrosion—that might have been addressed or left unresolved. Buyers should treat this as a red flag for incomplete maintenance records. Given the sparse MOT data, an in-person inspection should prioritise high-wear areas common in luxury vehicles of this era. Focus on the suspension system for deteriorated bushes, cracked coil springs, or binding components, as these often fail progressively without MOT detection. The braking system warrants thorough checking, including disc thickness, caliper binding, and rotor warpage, especially if the vehicle has been stationary for extended periods. Structural corrosion, particularly around the sills, wheel arches, and underbody, should be examined closely, as this model is prone to rust in high-humidity regions. Emissions systems, if equipped with DPF or catalytic converters, may require diagnostic scanning for codes, though this would not appear on the MOT record. Finally, verify fluid levels and condition—brake fluid, power steering, and engine oil—since their degradation is not captured by MOT testing.