2009 Citroen C1 1.0L Petrol · FP09 XHT

The car shows a persistent trend of corrosion and wear on consumables, culminating in a pass on 2026-06-08 that flagged sub-frame corrosion and perishing rear tyres. Previous records indicate a history of structural and system failures, including excessively corroded rear brake pipes and a major exhaust leak in 2021, as well as parking brake inefficiency and a deteriorated CV boot in 2023. While the vehicle has passed its most recent tests, the recurring nature of tyre degradation and the emergence of sub-frame corrosion suggest a vehicle experiencing typical age-related deterioration of its chassis and rubber components. With 159,414 miles recorded over 17 years, the vehicle has averaged approximately 9,377 miles per year, which is consistent with typical usage for its age. This level of accumulation means that high-wear components, including the drivetrain, suspension bushings, and braking system, have been subjected to significant operational stress. The consistent annual testing pattern confirms the vehicle has remained in active use, though the high total mileage increases the likelihood of fatigue in mechanical linkages and mounting points. Inspection should focus heavily on the underbody, specifically the front sub-frame to determine the extent of the corrosion noted in June 2026. Given the 2021 failure for excessively corroded rear brake pipes and the 2023 parking brake failure, a thorough check of the brake line integrity and the feel of the handbrake engagement is essential. Listen for clicking or popping sounds from the front wheels during tight turns, which would indicate if the previously flagged nearside front CV boot issue has recurred or if the joint is now wearing. The recurrence of perishing and worn tyres across multiple tests, most recently on the rear axle in 2026, necessitates a close inspection of the sidewalls for cracking. During the test drive, listen for any audible exhaust leaks or drones, following the minor leak advisory from 2025. Any vibration through the steering wheel or unusual knocks when traversing uneven surfaces should be noted, as these may relate to the high-mileage wear of the suspension components or the recorded sub-frame corrosion.