2001 Mercedes-Benz S-Class 3.2L Diesel · LS51 AKG

The 2001 Mercedes-Benz S-Class has maintained a clean MOT history with no defects recorded in either of the two most recent tests, most recently passing on 1 October 2025 at 110,207 miles. This suggests a stable roadworthiness trend over the past year, though the absence of advisories or minor faults means critical components like suspension bushes, coil springs, and binding calipers were not explicitly cleared. The latest test occurred just nine months ago, which is acceptable but not ideal for a vehicle of this age—given the average annual mileage of around 4,400, a more frequent inspection cycle (every six months) would have been prudent for early detection of wear in high-stress areas. The recorded mileage of 110,207 miles over 25 years aligns with conservative usage, averaging just 4,408 miles annually. This low rate could indicate periods of inactivity, which may have allowed minor corrosion or fluid degradation to develop undetected. The gap between tests—12 months between July 2024 and October 2025—is standard, but without intermediate checks, potential issues in areas like brake disc uniformity or suspension alignment may have gone unaddressed. The lack of mileage spikes or abrupt jumps also implies the vehicle was not subjected to aggressive driving, though this does not preclude gradual wear in underbody components. A buyer should prioritise an independent inspection of the suspension geometry, particularly the rear trailing arms and bushings, as these are common failure points in high-mileage Mercedes-Benz models. The absence of MOT advisories does not guarantee these are intact, and wear in these areas can lead to uneven tyre wear or handling issues. Brake discs and calipers should be examined for lateral runout or uneven wear, as the tester did not specifically comment on binding or excessive noise. Additionally, the underbody should be scrutinised for corrosion around the sills, subframe, and exhaust system—critical for structural integrity given the vehicle’s age. Fluid levels (brakes, power steering, differential) should also be verified, as prolonged low-mileage periods can accelerate degradation in sealed systems.