2011 Citroen C1 1.0L Petrol · LS11 TXM

The 2011 Citroen C1 passed its most recent MOT on 10 September 2025 at 75,612 miles, but the maintenance trend is mixed rather than clearly improving. The same test initially failed on corroded rear brake pipes, a defective rear exhaust mounting, and a seeping oil filter, all of which were rectified before a pass was issued on the same day. Corrosion of brake lines has appeared consistently across multiple tests, signalling an ongoing issue with pipe condition rather than a one-off fix. The rear exhaust mounting was also flagged in the 2025 test, indicating a recurring weakness in that area. While the car is currently roadworthy, the pattern of corrosion-related advisories and minor fluid seeps suggests attentive but reactive maintenance rather than proactive component renewal. The mileage progression tells a story of light, steady use. Between September 2023 at 62,373 miles and September 2024 at 68,871 miles, the car covered 6,498 miles in twelve months. The following year it recorded 75,612 miles, meaning it added 6,741 miles between September 2024 and September 2025. That is consistent with roughly 5,000 miles annually over its fifteen-year life, well below the UK average. Such low annual mileage often points to short urban trips, which can accelerate brake corrosion and exhaust deterioration due to incomplete warm-up cycles and moisture retention. There are no suspicious gaps or sudden spikes in the recorded data, and the mileage progression appears genuine and well-documented. A buyer should focus their inspection on the underside, particularly the rear brake pipes where corrosion has been flagged repeatedly on both nearside and offside. Check whether the pipes have been replaced since the September 2025 test or merely cleaned and greased, as the advisory wording suggests surface contamination was masking the corrosion rather than resolving it. The rear exhaust mounting has also failed twice, so examine the rubber hangers and mounting points for perishing or fresh replacement. The oil filter seep noted in 2025 warrants attention; confirm whether the filter housing gasket or the filter itself was replaced, and inspect the surrounding block for signs of oil tracking toward the alternator or exhaust manifold. Tyre wear patterns are another concern. The 2024 failure revealed an offside front tyre with exposed cords and a nearside front tyre worn to 2 mm on the inner edge, suggesting tracking or suspension geometry issues. Although the 2025 test recorded no tyre defects, the earlier failures indicate uneven wear that may recur if alignment was not corrected. Have the tracking checked and inspect inner tyre sidewalls for feathering. The repeated registration plate lamp failures across multiple years point to a minor electrical niggle, likely corroded bulb holders or wiring connectors, which is inexpensive to fix but symptomatic of a vehicle that has not always had minor faults addressed promptly. Overall, the C1 presents as a low-mileage urban runabout with a history of corrosion management rather than corrosion prevention. A thorough underside inspection and confirmation of recent brake pipe and exhaust mounting replacements are essential before purchase.