2011 Citroen C1 1.0L Petrol · GF11 SFV

The most recent DVSA examination on 23 March 2026 resulted in a Pass, though it was preceded only three days earlier by a Fail with a Dangerous defect concerning a leaking offside front-to-rear brake pipe, alongside a Major defect for an inoperative registration plate lamp. The pattern across the recorded tests suggests a vehicle that is fundamentally serviceable but is showing progressive deterioration in its hydraulic braking circuit and general underbody condition. The repeat advisories relating to brake pipe corrosion from 2023 and 2024, culminating in an actual fluid leak and dangerous failure in early 2026, indicate a clear worsening trend in the braking system. The underbody corrosion advisory recorded at both the failure and the subsequent pass further suggests that structural surface corrosion is advancing, which is consistent with age and exposure. Overall, the maintenance trend cannot be described as stable; a prospective buyer should treat the braking system and underbody as priority areas for verification. At 121,007 miles over approximately fifteen years, this C1 is showing roughly 8,067 miles per year, which is broadly typical for a small city car of its vintage and not in itself a concern. However, the MOT history is somewhat sparse, with only five recorded tests spanning 2022 to 2026, which suggests the vehicle may have had periods of light use or standing, both of which carry their own mechanical implications. Low or irregular usage tends to accelerate degradation of brake components through corrosion of discs and binding of calipers, drying and cracking of rubber components such as tyres and flexible brake hoses, and discharge of the 12V battery. Equally, the cumulative mileage is high in absolute terms, meaning that consumables such as suspension bushes, coil springs, exhaust mounts, and timing or auxiliary drive belts will have absorbed substantial wear. Given the recurring brake-related advisories and the recent dangerous failure, a thorough inspection of the entire hydraulic braking circuit is essential. The front-to-rear brake pipework should be examined for signs of corrosion, surface rust, weeping joints, or previous repairs, and the flexible hoses should be checked for cracking or bulging. On a test drive, listen for any brake pedal sponginess indicating air ingress, and feel for pulling to one side under braking, which could suggest a hydraulic imbalance or a seized caliper slide. The front discs noted as worn and pitted in 2023 will now almost certainly require replacement, and uneven wear or a juddering sensation through the brake pedal on application would confirm the need for discs and likely caliper refurbishment. The rear brake pipe corrosion noted over consecutive tests should also be assumed to have progressed and budgeted for full replacement of the metal pipework. Beyond the braking concerns, several age- and mileage-related items warrant attention before purchase. The tyres should be inspected closely for sidewall perishing and cracking, particularly given the nearside rear tyre advisory from 2023, as a fifteen-year-old tyre that has seen prolonged standing is highly susceptible to rubber degradation regardless of tread depth. The underbody should be examined on a ramp for the extent of structural corrosion, paying particular attention to suspension mounting points, sills, and the rear axle area. The 12V battery should be load-tested, as a fifteen-year-old vehicle is well beyond typical battery life, and all fluid services should be verified, including brake fluid (which absorbs moisture over time and should be renewed biennially), coolant, and engine oil, with the service history stamps checked to confirm adherence to schedule. Finally, given the high annual mileage implied, inspect the clutch operation for any slipping or judder, and check the exhaust system for blowing joints or internal corrosion, as these are common wear items on higher-mileage C1s.