2017 Mercedes-Benz S-Class 2.9L Diesel · ND60 AAA

This Mercedes-Benz S-Class presents a clean and stable MOT history, with the most recent test in February 2023 at 50,997 miles passing without any defects. The absence of advisories or failures across all three recorded tests—including the latest—indicates that major mechanical components such as brakes, suspension, steering, and structural integrity have remained within acceptable tolerances. However, the near-three-year gap since the last MOT (as of July 2026) raises a red flag: a vehicle of this age and specification should ideally undergo an annual inspection to verify ongoing condition, particularly given its low annual mileage. Without a recent test, there’s no confirmation that wear items like tyres, brake pads, or fluid levels have been maintained to current standards. The mileage pattern is unusually low for a vehicle of this age, averaging just over 5,600 miles per year since 2017. This suggests either infrequent use or prolonged periods of inactivity, which can exacerbate issues like fluid degradation, rubber hardening, and corrosion. The recorded mileages—31,968 in December 2020, 39,122 in December 2021, and 50,997 in February 2023—show minimal annual accumulation, with no sudden spikes that might indicate heavy usage or neglect. The lack of mileage progression also means wear on consumables like tyres, brake discs, and suspension bushes may have been slower than average, but this does not preclude latent problems from developing during periods of disuse. For a prospective buyer, the primary focus should be on verifying the condition of components that degrade over time even with low mileage. Given the absence of MOT advisories, there’s no direct evidence of binding brakes, worn suspension bushes, or corroded exhaust systems, but a thorough inspection should still check for fluid leaks, tyre condition (including uneven wear or dry rot), and brake disc thickness. The rear brakes, in particular, should be tested for smooth operation, as Mercedes S-Class models can suffer from binding calipers if fluid levels drop or if the vehicle has been left unused for extended periods. Structural corrosion, while uncommon in well-maintained luxury vehicles, should also be inspected, especially around wheel arches, sills, and underbody panels where moisture could have caused hidden deterioration.