2010 Alexander Dennis Enviro 200 4.5L Diesel · YN60 FKO

The vehicle remains technically roadworthy, but the maintenance trend shows signs of structural degradation that require close monitoring. The most recent test conducted in June 2025 at 322,173 miles resulted in an advisory for the offside chassis third cross member being corroded. While the vehicle passed, the presence of structural corrosion on a primary support member indicates that the chassis is beginning to succumb to rust, which may lead to future failures if not treated or replaced. The mileage accumulation is consistent with a heavy-duty commercial profile, averaging approximately 20,000 miles per annum. A significant discrepancy is noted between the July 2022 and August 2021 records, where the mileage dropped from 546,249 miles to 345,082 miles, suggesting either a clerical recording error or an engine replacement during that period. Excluding this anomaly, the progression from 235,618 miles in 2023 to the current reading confirms high usage rates that place considerable stress on the drivetrain, air systems, and suspension components. A prospective buyer must prioritise a physical inspection of the chassis, specifically targeting the depth of the rust on the offside cross member identified in the latest report. The previous advisory regarding a lightly corroded air tank at the drive tackle in 2022 suggests that the air braking system components are susceptible to environmental wear. Furthermore, the oil leak noted in the offside engine area in 2023 should be verified to ensure it has been rectified rather than masked, as high-mileage engines are prone to seal failures that can impact long-term reliability.