2006 Ford Fusion 1.4L Diesel · WU06 UBX

The vehicle is currently roadworthy following a pass in March 2026, but the maintenance trend shows a concerning pattern of structural degradation and mechanical neglect. While the most recent test at 99,376 miles cleared the immediate failures, the history from April 2025 reveals significant issues including a heavy coolant leak and emission failures. The transition from a corroded brake pipe in 2024 to a rusty sill and floor suggests that structural corrosion is progressing actively rather than being addressed with preventative measures. At 99,376 miles, this Ford Fusion has averaged approximately 5,000 miles per year, which is significantly below the national average for a twenty-year-old car. The mileage gap between April 2024 and April 2025 was only roughly 3,200 miles, indicating consistent but low-intensity use. However, low mileage on a vehicle of this age often correlates with perished rubber-based components and accelerated surface corrosion, which aligns with the recurring rust advisories and coolant leaks noted in the record. A buyer must conduct a thorough physical inspection of the underbody structural integrity. The tester repeatedly flagged rust on the offside rear floor and sill across 2024, 2025, and 2026, which requires a close look to ensure the corrosion has not compromised the structural members. The nearside front wheel bearing that failed in 2025 should be checked for continued play or noise, as these components often fail rapidly. Additionally, the previous heavy coolant leak reported in 2025 necessitates a pressure test of the cooling system to ensure the repair was effective and that no thermal damage occurred to the head head.