2006 Fiat Doblo 1.9L Diesel · KM55 CZK

Structural integrity sits at the centre of this Fiat Doblò's mechanical story. The January 2026 test exposed advanced corrosion on both rear inner integral body structures, with the examiner recording that rigidity was significantly reduced - a major category defect of sufficient seriousness to fail the vehicle outright. The car returned to the same test station just six days later and passed cleanly, suggesting either temporary repair work or a re-test under appeal conditions, but the underlying corrosion remains in the chassis rather than having been genuinely resolved. Against this, the rest of the MOT record across 2024 and 2025 is reassuring, with clean passes and only minor advisories, which indicates the body corrosion is a localised but serious late-life development rather than a long-standing gradual deterioration. Annual usage of roughly 6,250 miles places this Doblò squarely within the typical bracket for a twenty-year-old light commercial, and the recorded test dates are evenly spaced without any multi-year lay-up or sudden mileage jumps. That consistent pattern means the engine, transmission, and drivetrain components have accumulated wear at a steady and predictable rate rather than suffering the extremes of either long stationary periods or heavy sustained use. The advisories recorded in 2022 and 2025 - oil leaks, exhaust smoke, and front brake wear - are all consistent with a working vehicle of this age and mileage. However, the appearance of two oil leak advisories across separate tests, combined with the excessive smoke finding on the failed test, suggests the engine's sealing components and potentially piston rings or valve guides are beginning to show their age. A prospective buyer should treat the rear inner body structure corrosion as the priority concern and physically inspect both rear inner arches, the load floor edges, and the area around the rear mounting points for perforation, flaking metal, or previous patch repairs that may be concealing further weakness. On a test drive, listen for any clonks or structural flex from the rear over speed humps and uneven surfaces, particularly when the load area is unladen, as a compromised inner structure can transmit road noise and movement into the cabin. The Doblò is known for rear axle and suspension component wear at this age, so pay close attention to any knocking from the rear over bumps, and check for uneven tyre wear on the inside shoulders which would point to rear beam bush deterioration. The front brake discs and pads flagged in 2025 should be inspected for remaining material and surface condition, as the advisories suggested both components were approaching the end of their useful life. On test, feel for any judder through the brake pedal or steering wheel under firm application, which would confirm disc runout or thickness variation. The anti-roll bar linkage wear noted in 2022 should be rechecked by hand for any free play or sloppiness at the front bar, as these small bushes tend to deteriorate further between tests. Finally, ask for documentary evidence of any repair work carried out between the January 2026 failure and re-test, and consider a structural survey by a body specialist before purchase given the major category findings on integral body components.