2008 Citroen C4 1.6L Diesel · CY08 AAX

The most recent MOT test for this 2008 Citroën C4 occurred on 2025-11-21, where the vehicle was granted a clean pass with no recorded defects. However, the test history reveals a concerning pattern of failure on the parking brake system during its 2024-07-09 MOT, which was marked as both a dangerous and major failure. This failure indicated that the rear parking brake was non-functional on both the nearside and offside, with the offside requiring an abnormally high effort—95 kg—compared to the required 50 kg. The subsequent MOTs in 2023 and 2024 passed without issues, suggesting that the problem was either rectified or the vehicle was temporarily out of use during the critical period. While the immediate trend appears to have stabilised, the presence of a past major failure on the parking brake mechanism demands careful attention, particularly given the vehicle’s age and the potential for cumulative wear in this critical safety component. The recorded mileage of 107,466 miles for a vehicle aged approximately 18 years represents a relatively low annual usage rate of around 5,970 miles per year, which is unusually low for its age. Such low mileage can often result from prolonged periods of inactivity, particularly if the vehicle was stored rather than driven regularly. However, this usage profile does not necessarily reflect optimal maintenance practices, as low mileage can sometimes mask underlying issues that develop from standing rather than from wear and tear. For instance, standing vehicles are more susceptible to corrosion in brake systems, particularly the parking brake components, which may explain the observed failure. Additionally, fluid degradation—such as in the brake fluid reservoir or differential fluid—can accelerate over time, even with minimal use, leading to binding calipers or seized parking brake cables. The vehicle’s history of low annual mileage should prompt a thorough inspection of standing-related corrosion and the integrity of the parking brake assembly, as these are areas prone to failure when a car is not in regular service. Given the past MOT failure on the parking brake system, the prospective buyer should prioritise a detailed inspection of the rear parking brake mechanism, including the cable assembly, brake shoes, and linkage. On a test drive, listen for any unusual noises when engaging the parking brake, such as grinding, dragging, or excessive resistance, which may indicate worn brake components or a misaligned mechanism. Inspect the rear wheels for signs of uneven wear or binding, which could suggest a malfunctioning parking brake. The offside failure with a 95 kg effort suggests a potential issue with the cable tension or a seized component, so checking for smooth operation and proper cable routing is essential. Impending maintenance should include replacing the parking brake cables, shoes, and potentially the parking brake actuator if corrosion or excessive wear is detected. Additionally, the buyer should ensure that the vehicle’s service history records any prior repairs to the parking brake system, as this will help gauge the extent of the previous failure and the effectiveness of any corrective actions taken. For the broader vehicle inspection, given the vehicle’s age and the low but irregular mileage, the buyer should focus on several key areas. First, examine the tyres for signs of sidewall perishing or cracking, which can occur even with low mileage if the vehicle has been stored for extended periods. Check the tread depth and look for uneven wear patterns, which may indicate suspension or alignment issues. The 12-volt battery should be tested for charge capacity and corrosion on the terminals, as standing vehicles are prone to battery drain and terminal oxidation. Inspect the exhaust system for leaks or corrosion, particularly around the catalytic converter and tailpipe, as these areas can degrade over time regardless of usage. Fluid levels—particularly brake fluid, differential fluid, and coolant—should be checked for degradation, with a recommendation to replace them if they have been in the vehicle for more than five years, as fluid breaks down over time even with minimal use. Finally, the suspension components, including coil springs, shock absorbers, and suspension bushes, should be inspected for signs of wear or excessive play, as low-mileage vehicles can sometimes develop standing-related issues in these areas. A thorough visual and functional inspection of the steering and suspension linkages is also advisable to ensure there are no hidden problems that could lead to a future MOT failure.