2005 Toyota HI-ACE 2.5L Diesel · MM55 HTG

The vehicle most recently passed its MOT on 15 January 2026, but the overall maintenance trend is concerning and appears to be worsening. While the vehicle has a consistent history of passing, there is a chronic and escalating pattern of structural corrosion and suspension deterioration. A significant failure in February 2024 regarding a holed sill and excessive emissions indicates that the vehicle has suffered from neglect or harsh environmental exposure, and the subsequent advisories suggest that corrosion is now spreading across the underbody and suspension mounting areas. With a recorded mileage of 143,863 miles over 21 years, the vehicle has averaged approximately 6,851 miles per year. This usage rate is typical for its age and suggests a moderate duty cycle. However, the mechanical implications are driven more by the vehicle's age than the odometer reading. At this stage of its life, the primary concerns are the degradation of rubber components and the oxidation of the chassis, rather than excessive drivetrain wear from high mileage. During a test drive, you must be alert for specific mechanical symptoms. The reported spongy brake pedal suggests air in the hydraulic system or a failing master cylinder, which requires immediate investigation to ensure stopping power. Listen for a rhythmic humming or droning noise from the nearside front, which would indicate the progressing wear of the wheel bearing. Additionally, listen for knocking or clunking sounds when traversing uneven surfaces, as this is a classic symptom of the worn anti-roll bar linkage pins and bushes noted in the latest inspection. Given the previous failure for dense smoke, observe the exhaust output under acceleration to ensure the engine is combusting fuel efficiently and is not suffering from injector or turbocharger degradation. A comprehensive physical inspection of the underbody is critical. You should specifically examine the rear outer vehicle structure and the lower suspension arm mountings for advanced corrosion. Pay close attention to the quality of the previous repair to the offside rear sill to ensure it was welded professionally rather than patched superficially. Check the rear coil springs for heavy scaling or thinning, as these have been flagged as corroded in multiple years. Finally, verify the condition of the brake discs for pitting and check the tyres for uneven wear or sidewall cracking, which would indicate that the suspension geometry is compromised by the worn bushings and linkages.