2009 Toyota Prius 1.8L Hybrid electric (clean) · FJ59 YBC

Corrosion is the dominant theme in this Prius’s MOT record, with vehicle‑structure advisories appearing in three consecutive years and a brake‑pipe corrosion advisory persisting into 2024, while a 2025 failure highlighted a split constant‑velocity (CV) joint boot and an excessively corroded rear brake pipe that rendered the vehicle unsafe. The most recent test in June 2026 passed, but the advisory on structural corrosion remains, indicating that while the inspector judged rigidity to be acceptable, the underlying rust has not been fully addressed and could progress. At 219,370 mi the car averages roughly 12,900 mi per year over its 17‑year life, a mileage level that places significant cumulative wear on drivetrain components, suspension bushings, brake wear items and the hybrid battery cooling system. The MOT history shows no gaps, suggesting the vehicle has been driven regularly rather than stored for long periods, which means wear is likely to be evenly distributed rather than concentrated from sudden high‑speed use. High mileage combined with the noted CV joint boot split and rear brake‑pipe corrosion points to accelerated degradation of those specific parts. When inspecting the vehicle, focus first on the chassis and subframe for any active rust penetration, especially around mounting points for the suspension arms and the rear axle where corrosion was previously flagged. Listen for any creaking or knocking over bumps that could indicate weakened brackets or compromised bushings, and feel for any looseness in the steering column that might arise from structural rust. Given the past brake‑pipe corrosion, check the rear brake hoses for signs of pitting, swelling or fluid leakage, and test the pedal for a firm, consistent feel without sponginess or a drop in pressure. The split CV joint boot recorded in 2025 should be examined for grease leakage around the front axle and for a characteristic clicking or whine that intensifies under acceleration or when turning. Verify that the near‑side rear tyre, which was deemed dangerous for tread depth, has been replaced and inspect the remaining tyres for even wear and sufficient depth. Finally, a thorough check of the rear brake system—including caliper operation, disc condition and any rust on the pipe fittings—will confirm whether the earlier corrosion issue has been remedied or if further replacement is required before the vehicle can be considered reliably roadworthy.