2012 Citroen C1 1.0L Petrol · PN12 DPF

The most recent MOT test on the 2012 Citroën C1 occurred on 2025-10-23, resulting in a passing outcome despite persistent advisories that indicate ongoing but not critical issues. While the vehicle has not failed an MOT since 2022, the recurring advisories—particularly the persistent oil leak, offside tyre wear close to legal limits, and corrosion on the rear brake pipes—suggest a maintenance trend that has not fully resolved. The fact that the oil leak and tyre wear advisories persist across multiple tests indicates a lack of effective mitigation, which may reflect either a failing oil seal or a design-related issue with the tyre mounting. The minor headlamp failure in 2025-10-23 further highlights a need for attention to electrical components, which can sometimes be overlooked in low-mileage vehicles standing for extended periods. The recorded mileage of 66,286 miles for a vehicle aged 14 years represents a relatively low annual usage rate of approximately 4,735 miles per annum, which is unusually low for its age. Such low mileage can often stem from infrequent use, long periods of storage, or environmental factors like indoor parking, which may contribute to issues such as battery degradation, standing corrosion on brake components, and tyre perishing from exposure to moisture or UV light. However, the absence of higher mileage accumulation over the past decade suggests that wear on consumables like oil, brake pads, and suspension components may not have progressed as rapidly as one might expect in a similarly aged vehicle with higher usage. The near-stable mileage figures also raise questions about whether the vehicle has been driven regularly enough to maintain fluid levels and lubrication, or if it has been left in a state of disuse, which can accelerate wear on non-moving parts like seals and corrosion-prone areas. To proceed with a thorough inspection, the prospective buyer should prioritise checking the oil leak source, which could stem from a failing oil pan gasket, valve cover gasket, or a worn oil filter housing seal. During a test drive, listen for a persistent, oily smell near the engine bay or observe for dark oil spots on the driveway, particularly around the front of the engine. The offside rear tyre wear advisories, which have appeared in multiple MOTs, warrant inspection for uneven loading, which may indicate misalignment, suspension issues, or improper wheel balancing. Look for lateral tread wear patterns, cupping, or signs of excessive flexing in the tyre sidewall, which could suggest suspension binding or camber misalignment. The corroded brake pipes on both sides of the vehicle should be addressed promptly, as corrosion can lead to brake fluid leaks, reduced hydraulic pressure, and eventual failure. Inspect the pipes for cracks, bulges, or excessive grease buildup, and consider replacing them if the corrosion is severe, as this is a critical safety issue. For the Citroën C1’s age and the observed low mileage, the buyer should also conduct a comprehensive physical inspection of the vehicle’s structural integrity, particularly focusing on areas prone to standing corrosion. Check the underbody for rust around the wheel arches, rocker panels, and beneath the rear axle, as prolonged exposure to moisture can accelerate corrosion in these regions. Inspect the brake discs and calipers for signs of corrosion, binding, or uneven wear, which may indicate a need for servicing or replacement, especially given the previous advisories. The rear anti-roll bar linkage pin or bush, which showed wear in 2024’s MOT, should be examined for excessive play or signs of fatigue, as this can lead to suspension clunks and reduced handling stability. Additionally, verify the condition of the tyres beyond the legal limits, including sidewall perishing, which can compromise tyre integrity under load. Finally, given the vehicle’s age and potential periods of disuse, test the 12V battery for charge retention and listen for any clicking sounds when starting, as a weak battery can lead to electrical gremlins and poor performance. Time-based fluid servicing, such as checking and replacing the engine oil and coolant, should also be considered, as fluids degrade over time regardless of mileage, and a 14-year-old vehicle may benefit from a full fluid refresh.