2009 Citroen C1 1.0L Petrol · AV09 HTT

The most recent MOT test on 2026-04-02 resulted in a failure, with the vehicle presenting two major defects—both relating to excessive binding in the rear service brakes on both the nearside and offside sides—alongside an ongoing advisory regarding corroded brake pipes covered in grease or other material. This marks a significant deterioration from the clean pass in 2021, where no major issues were recorded, and the subsequent tests in 2022 and 2023 showed only minor or advisory defects. The progression from 2023 to 2026 indicates a concerning trend, with brake binding and corrosion becoming progressively more severe, suggesting either prolonged neglect of brake system maintenance or underlying mechanical wear that has compounded over time. The 2025 test, despite passing, still flagged binding in the rear brakes and corrosion in the coil springs and brake pipes, reinforcing the need for immediate attention to prevent further degradation of braking performance and structural integrity. The vehicle’s recorded mileage of 98,375 miles for a 2009 model—approximately 5,787 miles per year—is unusually low for its age, which is around 17 years old. Such low annual mileage often reflects either light usage, long periods of inactivity, or improper storage conditions, such as standing for extended periods without movement. While low mileage can reduce wear on components like tyres and suspension, it also raises concerns about standing corrosion, particularly in the brake system and exhaust components, where stagnant fluids and lack of dynamic movement can accelerate rust and degradation. The brake pipes and pipes in the MOT history are repeatedly cited as corroded, which is more likely to occur when the vehicle is stationary for prolonged periods, allowing moisture to penetrate and corrode internal surfaces. This highlights the importance of regular movement and, if applicable, protective measures like draining fluids or using anti-rust sprays. For a prospective buyer, this Citroën C1 requires a thorough inspection of the braking system, as the recurring binding and corrosion issues are critical. During a test drive, listen for uneven brake pedal response, particularly on the near and offside rear brakes, where binding may cause hesitation or a spongy feel. Check for excessive brake dust accumulation around the rear wheels, which could indicate worn pads or discs contributing to binding. Visually inspect the rear brake pipes for any signs of leakage or further corrosion, and ensure there is no fluid pooling beneath the vehicle. The offside rear coil spring’s corrosion, noted in previous MOTs, should be examined for structural integrity, as a failing spring can lead to uneven ride quality and potential suspension failure. Additionally, verify that the front tyres, which were worn close to legal limits in earlier tests, are now fully compliant, and check for sidewall cracking or perishing, which can weaken tyre integrity over time. Given the vehicle’s age and the recurring maintenance issues, it is advisable to prioritise a comprehensive mechanical inspection by a qualified technician before purchase. Addressing the brake system defects immediately is paramount, as binding brakes can compromise stopping performance and increase the risk of accidents. If possible, arrange for a brake fluid flush to remove any contaminants that may have accumulated from standing, and consider replacing the brake pipes if they are severely corroded or compromised. For the suspension, particularly the offside rear coil spring, assess its condition for signs of failure, such as excessive sagging or noise when driving over bumps. Lastly, ensure all fluids—oil, coolant, and brake fluid—are up to date, as standing vehicles can lead to fluid degradation over time, further exacerbating wear and corrosion. If the vehicle has been stored for extended periods, consider checking the 12V battery for signs of weakness, as prolonged inactivity can drain it, and verify that the exhaust system, despite minor leaks, remains structurally sound to avoid carbon monoxide risks.