2006 Toyota Yaris 1.3L Petrol · EX56 OBD

A pattern of progressive structural and lighting deterioration defines the MOT history of this twenty-year-old Toyota Yaris, with chassis corrosion now affecting both subframes and rear suspension components. The most recent test on 29 July 2026 returned a pass, but it carried four advisories, the most significant being corrosion to the front and rear subframes and a corroded nearside front upper brake pipe covered in grease. The 2025 test followed a similar theme, with advisories logged against the rear subframe corrosion, two worn subframe pins or bushes, and slight ferrule corrosion on both rear brake hoses. These advisories are not isolated observations; the rear coil springs and shock absorber casings were flagged for corrosion as far back as the August 2024 test. Subframe corrosion, once initiated, tends to spread along box sections and mounting points, and the progression from localised component rust in 2024 to a general subframe advisory by 2025 and a more pronounced front and rear subframe advisory in 2026 suggests the corrosion is advancing rather than stable. The 2026 advisory specifies that structural rigidity is not yet significantly reduced, but this is a threshold assessment, and further annual testing will be needed to confirm the rate of deterioration. Mileage accumulation across the recorded tests is broadly consistent with the age of the vehicle, working out at roughly 6,500 miles per year over a twenty-year service life. The annual MOT cadence has been maintained without multi-year gaps, indicating the car has remained in regular use rather than laid up for extended periods, which can otherwise mask underlying corrosion or allow brake and suspension components to seize. There is no evidence in the records of unusually rapid mileage accumulation between tests that might suggest a long motorway commute or commercial use. The roughly even usage pattern means wear-related advisories have developed gradually, and the suspension, brake, and chassis components now flagged have reached a stage where environmental exposure over two decades has begun to compromise surface protection. The absence of long test intervals also means there are no unrecorded periods during which significant repairs could have been carried out without appearing in the MOT history. For a prospective buyer, the primary mechanical concerns centre on the rear suspension and underbody, where multiple advisories have accumulated. Both rear coil springs and both rear shock absorber casings were noted as corroded in 2024, and the rear subframe was first flagged for corrosion in 2025 and then again in 2026 alongside the front subframe. On a test drive, listen for clonking or knocking noises from the rear over uneven surfaces, which could indicate advanced spring failure or worn subframe bushes, and pay particular attention to any vagueness or shunt through the rear suspension over bumps. The 2026 advisory for play in the nearside steering rack inner joint warrants a careful check for looseness or a knocking sensation through the steering when turning at low speed, as well as any uneven tyre wear on the front nearside. The nearside front upper brake pipe, recorded as corroded and covered in grease, should be inspected closely for any active seepage, and the brake pedal should feel firm and progressive during a test drive with no sponginess or excessive travel. The headlamp issues recorded in 2022 and 2025, involving severely reduced light output from product contamination and seriously defective lenses, demonstrate that the front lamp units have been a recurring weakness on this vehicle, even though the 2026 test only recorded a minor registration plate lamp defect. Lamp alignment and lens condition should be re-checked at the point of purchase, as condensation inside the units or hazing of the polycarbonate will accelerate again once the protective coating has failed. Stop lamp failures in both 2022 and 2025 also warrant a physical inspection of all rear lighting, as these are simple electrical faults that can recur. The brake hose ferrule corrosion noted on both rear hoses in 2025 has not reappeared as an advisory in 2026, suggesting either no deterioration or that the components were attended to, but the hoses themselves should be examined for cracking or bulging under pressure. Taken together, the record points to a car that remains roadworthy but carries an accumulating list of corrosion-related advisories that any buyer should monitor closely at each subsequent MOT.