2007 Ford Fiesta 1.4L Diesel · FN57 RHJ

Repeated failures involving exhaust emissions and visible smoke stand as the defining mechanical hurdle in the history of this 2007 Ford Fiesta, pointing to ongoing management issues within the combustion and diesel particulate systems. The vehicle secured a pass on 2022-02-16, successfully rectifying a prior failure from the very same day for excessive metered smoke on a non-turbocharged engine. This follows an earlier failure in February 2021 for visible smoke emissions from a diesel particulate filter alongside an inoperative indicator, as well as a 2017 test featuring multiple failures including incorrect headlamp aim, an ineffective wiper, and a non-functioning stop lamp. While recent tests from 2020 through 2022 show clear passes without recorded defects, the historical recurrence of emission and electrical faults demands close scrutiny of the engine management and exhaust configuration. Accumulating 141,270 miles over its roughly nineteen years on the road places this Ford Fiesta at an average of approximately 7,435 miles per year, representing standard annual usage for a vehicle of this age. The testing log reveals a notable data gap between March 2019 and February 2020, as well as a significant period between the September 2017 test and the March 2019 test, indicating periods where testing cadence shifted or the vehicle experienced changes in operational status. This steady mileage accumulation over nearly two decades means that foundational mechanical assemblies, drivetrain components, and structural elements have been subjected to consistent wear and tear, making comprehensive physical inspection vital regardless of the routine mileage rate. Prospective buyers must conduct a rigorous physical assessment focusing directly on the components previously flagged in the MOT records, beginning with a thorough examination of the exhaust system, diesel particulate filter, and related sensors for signs of soot buildup, leaks, or failing regeneration cycles. During a static check, verify that all exterior lighting functions correctly, paying attention to the headlamp aim and directional indicators that previously caused test failures, and inspect the windscreen for the minor stone damage noted in the 2017 advisory. On the road test, listen closely for any unusual engine hesitation, excessive smoke under acceleration, or erratic idling that would point to lingering combustion or emission faults. Assess the braking response and ensure the suspension handles road irregularities quietly without knocks or excessive body roll, while checking that the steering remains centered and responsive. Given the history of emission and lighting defects, a pre-purchase mechanical inspection to verify the health of the fuel injection system and electrical earths will help confirm the true roadworthiness of this high-mileage hatchback.