2017 Ford Transit 350 Heavy oil · YS66 YGO

The roadworthiness of this vehicle is currently questionable following a failure in the latest test on 31 January 2025 at 153,142 miles. While the vehicle maintained a clean record for several years, the most recent failure without recorded defects in the history suggests a mechanical or emissions-related issue that was not resolved or documented. The maintenance trend appears unstable, as the vehicle moved from a period of perfect passes to a failure after reaching the 150,000-mile threshold. The mileage profile indicates high-intensity use, averaging approximately 17,000 miles per year over its nine-year life. A significant surge in usage occurred between October 2023 at 119,547 miles and January 2025 at 153,142 miles, covering over 33,000 miles in just under sixteen months. This rapid accumulation places immense strain on the drivetrain, heavy-duty suspension, and braking components. The gap between the 2023 pass and the 2025 failure shows the vehicle was being worked hard consistently, which often accelerates the wear of consumable parts and suspension bushings. A physical inspection must focus on the structural integrity of the chassis and mounting points, given the high mileage and age of this Ford Transit. You should check for signs of excessive corrosion on the rear arches and coil springs, which frequently fail under heavy loads. Because the most recent failure lacked specific defect notes, a thorough check of the exhaust system and potential emissions leaks is necessary to identify why the vehicle failed the retest. Examine the brake discs for thinning and the binding calipers to ensure the high-mileage usage has not led to premature mechanical failure of the braking system.