2009 Citroen C1 1.0L Petrol · FD58 OYL

Chronic underbody corrosion and recurring braking system defects define the mechanical history of this vehicle. While the most recent test on 26 May 2025 resulted in a pass, the record shows a persistent trend of deterioration, specifically regarding structural oxidation and brake component wear. From rear sub-frame corrosion in 2022 to general underbody corrosion and a minor exhaust leak in 2025, the vehicle exhibits a pattern of age-related decay that has required intermittent attention. With 96,435 recorded miles over seventeen years, the vehicle has averaged approximately 5,673 miles per annum. This low annual accumulation suggests the car has seen lighter use than average for its age. However, the presence of binding brakes and corroded brake pipes in the 2022 record, alongside the 2025 advisory for perishing tyres, often coincides with vehicles that have spent significant periods stationary, which can accelerate the seizing of calipers and the degradation of rubber components. A physical inspection should prioritise the underside of the vehicle, specifically the rear sub-frame and the areas previously treated with underseal, to ensure the corrosion is superficial and not compromising structural integrity. During a test drive, pay close attention to the braking performance; any pulling to one side, pedal judder, or a feeling of the vehicle being held back may indicate lingering issues with binding calipers or brake imbalance. Listen for any abnormal knocks over bumps that could suggest further suspension or chassis deterioration. The 2024 record specifically noted the emission of blue smoke during acceleration, which indicates oil entering the combustion chamber. This should be verified by observing the exhaust during hard acceleration to determine if the issue persists. Additionally, the minor exhaust leak flagged in 2025 should be checked for audible hissing or a change in exhaust note, as this may necessitate a replacement of the lower exhaust section. Finally, inspect the offside front inner tyre for the cracking and perishing noted in the latest inspection.