2018 Fiat Doblo 1.2L Diesel · CX68 FCG

The Fiat Doblo’s most recent MOT history reveals a concerning inconsistency at its final test, where the vehicle failed twice on the same day—once for an active supplementary restraint system fault and once for an inoperative headlamp levelling device. This dual failure, occurring just 10 months ago at 62,430 miles, suggests either a rushed or incomplete repair process, as both issues were not resolved in the same cycle. Prior to this, the vehicle had passed flawlessly for three consecutive years, indicating a stable roadworthiness trend until the October 2025 test. The supplementary restraint system warning lamp failure is particularly critical, as it directly relates to passenger safety and may imply either a faulty airbag control module or wiring issue that was not properly addressed. The headlamp levelling defect, while less urgent, points to potential suspension or steering misalignment that could affect visibility and handling. The recorded mileage of 62,430 miles over eight years aligns with typical usage patterns for this vehicle’s age, averaging around 7,800 miles annually. There are no extreme gaps or rapid mileage jumps in the record, though the final 7,493 miles between the 2024 and 2025 tests—covering just 12 months—suggest consistent driving rather than neglect. The absence of any advisory notes in earlier MOTs implies that previous owners either maintained the vehicle diligently or that wear items like tyres, brakes, and suspension components were replaced proactively. However, the sudden failure in 2025 introduces uncertainty about whether intermediate checks were performed between tests. Given the recent failures, a buyer should prioritise an immediate inspection of the supplementary restraint system, including the airbag control module and wiring harness, to confirm the fault has been permanently resolved. The headlamp levelling device’s inoperability warrants checking for suspension bush deterioration, steering rack wear, or frame misalignment, as these can also affect ride quality and braking performance. Additionally, the rear brakes—though not explicitly faulted—should be scrutinised for uneven wear or binding, particularly if the vehicle exhibits pulling or reduced stopping efficiency. Corrosion around wheel arches, sills, and the subframe is another critical area to assess, as the Doblo’s van body is prone to rust progression over time. Finally, the exhaust system should be inspected for leaks or damage, as emissions-related faults are often tied to catalytic converter efficiency or catalytic converter damage, which can accelerate if left unchecked.