2011 Citroen C4 1.6L Diesel · HN11 AAV

The Citroën C4’s most recent MOT test on 26 November 2025—just six months ago—confirms the vehicle remains roadworthy with no defects recorded. Despite two consecutive failures in July 2023 and November 2024 at identical mileages (71,376 and 75,649 miles respectively), both were rectified promptly, and the car has since passed every subsequent test without issue. This suggests a pattern of timely repairs rather than chronic neglect, though the repeated failures at the same intervals warrant scrutiny of components that might have been overlooked or inadequately serviced. The recorded mileage of 78,181 miles over 15 years equates to approximately 5,212 miles annually, which is unusually low for a vehicle of this age. The gap between the 2023 and 2024 tests—spanning 14 months—indicates a prolonged period of inactivity, which could contribute to accelerated wear on suspension bushes, coil springs, and fluid-based systems if the car was left stationary. The identical mileages at failure points in 2023 and 2024 also imply the issues were not progressive but rather recurring at predictable intervals, potentially linked to specific maintenance cycles or component lifespan. Given the history, a buyer should prioritise a thorough inspection of the suspension system, particularly the rear axle where binding brakes were previously flagged in the 2024 failure. Corrosion in wheel arches, subframe, and sills should be checked, as prolonged standing increases rust risk. The braking system—especially rear calipers and discs—needs verification for uneven wear or binding, while fluid levels and condition should be assessed for leaks or contamination. Tyre tread depth and lateral wear patterns should also be examined, as the repeated failures at similar mileages could hint at tyre-related issues, such as underinflation or improper alignment. Finally, the exhaust system should be inspected for leaks or excessive corrosion, particularly around joints and mounting points.