2018 Mercedes-Benz S-Class 4.0L Petrol · 6 JSH

The 2018 Mercedes-Benz S-Class presents a fully clean MOT record with no defects, advisories, or failures across all five recorded tests. The most recent examination on 10 June 2026 at 21,568 miles returned a pass with zero defects. The maintenance trend is stable and consistently strong. No recurring faults, emerging wear patterns, or structural concerns appear anywhere in the history. The mileage accumulation is notably low for an eight-year-old vehicle. Annual usage averages roughly 2,696 miles, climbing from 10,432 miles in May 2022 to 21,568 miles by June 2026. The increments are steady and gradual, with no sudden jumps or suspiciously large gaps between tests. Each annual MOT records a consistent year-on-year increase of approximately 2,000 to 3,400 miles, suggesting regular but light use rather than prolonged standing or aggressive mileage inflation. A spotless MOT history on a premium saloon like this is encouraging, but low mileage alone does not guarantee trouble-free ownership. Extended periods of short journeys or infrequent use on a complex vehicle such as the S-Class can introduce issues that MOT tests do not always capture. Seals, gaskets, and rubber suspension bushes can perish from age rather than mileage. Brake discs and calipers may surface-corrode if the car sits for weeks at a time. The air suspension system, a known area of attention on this generation, merits close inspection for slow leaks or compressor fatigue even though no fault was flagged. Prospective buyers should commission an independent inspection focused on structural corrosion around the subframes, inner wing arches, and sill bases, as well as a thorough assessment of the drivetrain, steering rack, and electronic systems. Tyre age and condition deserve attention too, since low-mileage cars often run on the same rubber for years beyond its safe service life. The MOT record confirms diligent annual compliance and no mechanical defects, but a hands-on evaluation remains essential before committing to a vehicle of this complexity and value.