2007 Mercedes-Benz S-Class 5.5L Petrol · S500 ABE

The most recent MOT test on 29 May 2025 confirms the vehicle passed without defects at 180,175 miles, indicating a stable roadworthiness status at the time of inspection. However, the record reveals two consecutive failures at the 2024 and 2023 tests—both at the same mileage (157,205 and 132,640 respectively)—before passing again in May 2023. The absence of recorded defects in any of these tests suggests the failures were likely administrative (e.g., test centre errors) rather than mechanical, though this cannot be confirmed without additional context. The vehicle’s most recent MOT is now 15 months overdue, placing it outside the legal requirement for road use. This delay alone raises questions about the owner’s commitment to compliance, though it does not directly indicate mechanical issues. The mileage progression of approximately 9,483 miles per year aligns with typical usage for a vehicle of this age, though the gaps between tests are irregular. The 2023 to 2024 interval shows a 24,565-mile jump in just over a year, which may reflect either consistent high-mileage operation or an extended period without testing. The duplicate entries for both 2023 and 2024 tests—one pass and one fail at identical mileages—are unusual and warrant clarification, as they could imply repeated attempts or data entry inconsistencies. There is no evidence of rapid degradation, but the lack of intermediate MOTs means critical wear patterns, such as suspension deterioration or brake fade, cannot be tracked. Given the record’s inconsistencies, a buyer should prioritise an independent inspection of high-wear components, particularly the suspension system—coil springs, bushes, and dampers—given the vehicle’s age and mileage. The braking system, including calipers, discs, and hydraulic lines, should be scrutinised for uneven wear or binding, especially if the vehicle has experienced aggressive driving or heavy loads. Structural integrity checks for corrosion, particularly in the subframe, wheel arches, and exhaust mounts, are essential, as these areas are prone to deterioration in high-mileage Mercedes-Benz models. The absence of recorded defects does not preclude hidden issues, so a thorough examination of the engine bay for fluid leaks, timing belt condition (if applicable), and electrical connections is advisable. The overdue MOT status alone is not a mechanical concern but does signal a lack of recent oversight.