2006 Mercedes-Benz S-Class 5.5L Petrol · AG55 FDZ

The roadworthiness of this Mercedes-Benz S-Class appears exceptionally stable, with the vehicle achieving five consecutive clean MOT passes between July 2021 and August 2025. The most recent inspection on 15 August 2025 at 114,293 miles resulted in no recorded defects or advisories, indicating a high standard of preventative maintenance. This consistent lack of failures suggests that the vehicle has been well-serviced and that major mechanical or structural issues are currently absent from the test record. The recorded mileage of 114,293 miles over a twenty-year lifespan averages approximately 5,715 miles per annum, which is notably low for a luxury saloon of this class. The data shows a steady, incremental increase in usage, with roughly 7,800 to 10,000 miles added between each annual test. This pattern points toward regular, light use rather than prolonged periods of inactivity, which often helps prevent the common issues associated with long-term storage, such as seized calipers or degraded rubber seals. While the MOT history is clean, a prospective buyer should focus their physical inspection on the complex air suspension system and electronic components inherent to this model, as these are not always fully captured by the standard MOT test. Check the vehicle for signs of uneven ride height or compressor noise, as these luxury-specific systems can be costly to rectify. Examine the underside for any early signs of surface corrosion on the subframes and fuel lines, ensuring that the clean MOT record is matched by a lack of hidden structural deterioration. Given the age of the vehicle, verifying the condition of the transmission fluid and engine cooling system remains a priority despite the impeccable test results.