The Mercedes-Benz 350SL presents a clean MOT history with no defects recorded in its most recent test on 24 February 2025 at 70,929 miles, marking a stable trend over the past six years. The absence of advisories or failures in every documented inspection—including the 2023, 2022, 2019, and 2017 tests—suggests the vehicle has been maintained to a high standard, at least in terms of compliance with basic roadworthiness criteria. The fact that the last three tests (2022 onwards) show minimal mileage progression—just 351 miles between 2022 and 2023, and 351 miles again between 2023 and 2025—implies either very light use or prolonged storage, which could mask underlying wear. No recurring issues have been flagged, but the lack of advisories may also indicate a previous owner who prioritised passing the MOT over addressing minor wear before it became critical.
The vehicle’s recorded mileage of 70,929 over 13 years—roughly 5,456 miles annually—is exceptionally low for its age, falling well below the UK average for a car of this vintage. The gap between the 2019 and 2022 tests (1,023 miles over three years) is particularly striking, raising questions about whether the car was stored for extended periods or used sporadically. Such low mileage reduces typical wear on components like suspension bushes, brake pads, and clutch plates, but it also means fluids (brake fluid, engine oil, coolant) may have degraded due to condensation or lack of circulation. The absence of mileage accumulation suggests the previous owner may have treated the car as a secondary or occasional vehicle rather than a daily driver.
Given the clean MOT history, a prospective buyer should still conduct a thorough pre-purchase inspection, focusing on areas less scrutinised in routine tests. Pay particular attention to the suspension—specifically the coil springs, dampers, and anti-roll bars—for signs of corrosion or fatigue, given the car’s age and potential exposure to moisture during storage. The braking system, including calipers, brake discs, and hydraulic lines, should be checked for binding or uneven wear, even though no MOT advisories were recorded. The exhaust system may also warrant inspection for surface rust or leaks, particularly around the manifold and catalytic converter, as these are prone to corrosion over time. Finally, verify fluid levels and condition—brake fluid, engine oil, and coolant—since stagnation could lead to degradation or contamination, and ensure the battery remains in good health after prolonged periods of inactivity.