2007 Iris.bus Unknown 10.3L Diesel · YN57 AEV

The vehicle is currently roadworthy following its pass on March 28, 2026, but the maintenance trend shows a shift towards developing mechanical weaknesses. While the March 2025 test resulted in no defects, the most recent inspection identified specific issues related to the air suspension system and structural integrity. This indicates that the vehicle is beginning to show the effects of its age and high usage, despite a successful previous year. At 368,552 miles, this bus has covered an average of approximately 19,400 miles per year over its 19-year life. The gap between the March 2025 and March 2026 tests shows consistent use, though the high cumulative mileage suggests the vehicle has likely undergone heavy-duty service. This level of mileage typically places significant stress on the drivetrain, chassis, and suspension components, which explains the emergence of air leaks in the latest record. A buyer must prioritise a thorough inspection of the air suspension system, as the 2026 test flagged air leaks in both the nearside rear and nearside front bags. These leaks often deteriorate and can lead to total failure of the suspension height if not addressed immediately. Furthermore, the tester noted corrosion on the structure under item 6.1.1 (c) (i). Although structural rigidity remains currently intact, the presence of corrosion requires close monitoring to ensure the rust does not progress to structural fractures that would compromise the chassis in the near future.