2015 Fiat Doblo 1.6L Diesel · WN15 WDK

Chronic corrosion on the suspension and a recurring pattern of worn or perished drivetrain boots define the mechanical profile of this 2015 Fiat Doblo. Across its MOT history, the most recent test on 20 May 2026 was a pass, but it carried an advisory for a corroded rear coil spring and a minor defect for a severely deteriorated nearside front drive shaft CV boot. The prior test in April 2025 flagged slight play in both front anti-roll bar linkage ball joints, a minor exhaust gas leak from the backbox, and another deteriorated CV boot (though recorded earlier in 2022 for the offside unit). A genuine safety failure occurred in June 2024 when the nearside side repeater and registration plate lamp were inoperative, and in April 2023 a major defect was recorded for excessive wear in the offside front suspension arm rear bush. Two further advisories on front daytime running lights not functioning and nearside outer sill damage also appeared in the 2024 tests, alongside a minor windscreen damage marker from 2022. The overall trajectory shows the vehicle passing each subsequent annual test, but with a steadily lengthening list of advisories and minor defects relating to suspension components, boots, lighting, and exhaust integrity, indicating progressive wear across multiple systems rather than a stable condition. Mileage accumulation is notably high for the vehicle's age, with 149,471 miles recorded against an 11-year-old platform, equating to roughly 13,588 miles annually. This is well above average for a vehicle of this type and means that wear-prone consumables, suspension joints, bushes, brake components, and drivetrain elements have all been subjected to significantly more stress than a typical example. The testing record is reasonably consistent on an annual basis from 2021 onwards, with no prolonged SORN periods evident in the gap between tests, suggesting the vehicle has remained in regular service throughout. The high annual mileage combined with the corrosion advisories and bush wear suggests that components such as springs, dampers, anti-roll bar links, and the offside front arm bush specifically may be approaching or past the threshold where replacement becomes necessary, rather than simply being monitored items. For a prospective buyer, the priority on inspection is the suspension and underbody, given the recorded advisories for the rear coil spring corrosion and both front anti-roll bar linkage ball joints. On a test drive, listen for clonks or rattling from the front end over speed humps, uneven surfaces, and during direction changes, which would indicate worn link joints. Pay particular attention to knocking or vagueness from the offside front suspension area, where the rear arm bush was previously recorded as excessively worn, and check for any wandering or uneven tyre wear that could point to geometry issues stemming from tired bushes. Visually inspect the springs for flaking, scaling, or visible section loss, especially on the rear, and examine the subframe and inner sills for corrosion that may not yet have reached the MOT failure threshold but could be advancing. The nearside outer sill damage advisory from 2024 should also be physically inspected to ensure it has not progressed into a structural concern. The drivetrain boots require close attention, with deteriorated CV boots flagged at three separate tests between 2022 and 2026 on both sides of the front axle. On a road test, listen for clicking or popping from the front wheels during full-lock turns at low speed, and feel for any vibration through the steering or drivetrain under load, both of which would suggest a perished boot has allowed grease loss and joint contamination. Inspect both boots physically for splits, tears, or missing grease, and check the surrounding underbody area for flung grease. The exhaust backbox leak noted in 2025 should be evaluated for any increase in noise or fumes inside the cabin, and the daytime running lights and side repeaters should be confirmed as fully operational, given the failures and advisories recorded in 2024. Finally, a thorough inspection of all brake discs, pads, and pipes is warranted given the high mileage, even though no specific brake advisories have yet been recorded.