2006 Mercedes-Benz S-Class 3.0L Diesel · IMZ 1522

The 2006 Mercedes-Benz S-Class presents a stable and clean roadworthiness profile. The most recent test on 3 February 2026 at 121,519 miles passed with no defects recorded, continuing an unbroken five-year sequence of passes with zero advisories. The maintenance trend shows no worsening or recurring faults across the available history. Annual mileage remains low for a two-decade-old executive saloon. The records show 112,808 miles at the 21 January 2022 test, rising to 114,382 by 10 January 2023, 118,932 by 9 January 2024, 119,570 by 1 February 2025, and 121,519 by the 2026 test. That equates to roughly 2,200 miles per year over the last four years, well below the 6,076-mile annual average implied by the total. The clean sheet across all entries suggests the previous keeper maintained the car to a reasonable standard, though sparse testing detail limits deeper fault analysis. A buyer should still commission an independent inspection of suspension bushes, coil springs, and brake discs given the vehicle's age and likely periods of standing. Long idle spells on an S-Class of this era commonly provoke corrosion on structural underbody members and seizing of brake calipers even when MOT tests record no advisories. Verify the service history matches the low recorded mileage and confirm there are no hidden intermittent faults in the air suspension or emissions systems. The absence of MOT defects is reassuring, but twenty years of age demands hands-on checks beyond the DVSA record.