2021 Mercedes-Benz S 350 L AMG LN Prem + Exec D A 2.9L Diesel · KT70 AXK

The most recent DVSA MOT carried out on 15 July 2025 recorded a full pass with no recorded defects, following an identical clean result on the 15 January 2024 test. The absence of any advisory or failure items across two consecutive annual examinations indicates a stable maintenance pattern and suggests that the vehicle has been kept in a condition that meets the statutory safety and emissions standards without any emerging mechanical concerns. At 30,288 miles on the odometer the S‑Class has logged roughly 6,000 miles per annum since its first registration in 2021. This annual average sits comfortably within the typical usage envelope for a premium executive saloon and points to relatively light duty rather than high‑stress operation. The low mileage reduces the cumulative wear on consumables such as brake pads, clutch components and tyre tread, but it can also be a sign that the car may have spent extended periods stationary, a factor that can promote age‑related deterioration in rubber and metal components despite the modest distance covered. When inspecting the vehicle, give particular attention to the condition of the tyres. Even if the tread depth appears acceptable, examine the sidewalls for cracking, dry rot or hardening that can develop simply from age, especially if the car has been stored for long stretches. Look for any uneven wear patterns that could betray misalignment, worn suspension bushes or degraded coil springs, and listen for clunking or creaking noises when the steering wheel is turned or when the car is driven over bumps. The AMG suspension geometry is sophisticated, so any looseness in the rear sub‑frame mounts or front wishbone bushes should be flagged for further specialist assessment. Because the car is now five years old, time‑based services are as important as mileage‑based ones. Verify that the service book shows oil and filter changes at the recommended intervals, and confirm that the brake fluid has been flushed within the last two years, as moisture absorption can lower boiling points and affect braking performance. Inspect the brake discs for surface corrosion or glazing, and check that the calipers move freely without binding. A visual check of the battery terminals for corrosion and a load test of the 12 V battery will reveal any loss of capacity that can arise from prolonged periods of inactivity. Finally, ensure that all AMG‑specific electronic systems – such as the active suspension, AMG‑sport steering and exhaust valve actuation – are free of fault codes, and confirm that any manufacturer recalls applicable to the 2021 S 350 have been completed. A thorough test drive listening for any abnormal hums, vibrations or hesitation will round off the evaluation before committing to purchase.