2016 Ford Fiesta 1.0L Petrol · OV66 JHA

A persistent and unresolved emissions warning lamp defect dominates the mechanical record of this 2016 Ford Fiesta, raising genuine concern about the long-term health of the engine management system. Across three consecutive annual tests from 2024 through 2026, the engine malfunction indicator lamp has been recorded as inoperative or showing a fault on every occasion the vehicle was presented, resulting in a prs (permanently rejected status) failure on each test date despite the car subsequently passing after presumed remedial work. This recurring pattern suggests an underlying issue that has either not been fully rectified or is reoccurring, rather than a one-off sensor glitch, and is the single most important mechanical risk factor for any prospective buyer to investigate thoroughly. Recorded mileage of 67,389 miles over ten years equates to an average annual accumulation of roughly 6,700 miles, which is broadly consistent with typical mixed private use for a vehicle of this age and segment. There are no extended lay-up gaps in the testing record, with annual MOT certificates presented consistently from 2022 onwards, indicating that the vehicle has remained in regular service. Mileage progression between recorded tests appears steady rather than showing any anomalous jumps, which means the wear-related advisories observed can be attributed to genuine in-service use rather than prolonged standing followed by intensive running, though the persistent MIL issue must be considered alongside any normal consumable wear. For a prospective buyer, the priority pre-purchase actions centre entirely on the recurring engine management lamp fault. It is essential to establish what diagnostic trouble codes have been stored and what rectification work has been carried out, particularly whether the fault relates to a lambda sensor, catalytic converter efficiency, an EVAP system leak, or an electrical wiring issue within the MIL circuit itself, all of which are documented failure modes on this model. The vehicle should be driven long enough on a test drive for the engine to reach full operating temperature, and any hesitation, rough idle, flat spots under acceleration, or illumination of the lamp during the drive should be treated as immediate grounds for further investigation or price renegotiation. Requesting evidence of the diagnostic readout and the repair invoice from the most recent rectification is advisable before committing to purchase. Secondary inspection items should focus on the components flagged as advisories, namely the offside front and nearside rear tyres, which have been noted as worn close to the legal limit or worn on the edge across multiple tests. Uneven edge wear, particularly on the front offside, can indicate front suspension geometry problems such as worn wishbone bushes, top mount deterioration, or tracking misalignment, so a test drive over uneven road surfaces should be used to listen for clonking from the front suspension and to feel for any pulling to one side under braking. The front brake discs and pads should also be physically inspected for wear and any lipping on the disc edges, as brake component condition is not separately recorded in the MOT data. A minor windscreen damage note from 2025 should be checked to ensure it has not progressed into the driver's direct line of sight, as this would elevate it from a minor defect to a prs failure at the next test.