2015 Citroen C4 2.0L Diesel · AX15 WFS

The most recent MOT on 9 December 2025 was a pass, but it carried three advisories concerning the rear registration plate and wear on both front suspension arm pins or bushes. This follows a failure just six days earlier for an off‑side rear service brake that was lagging, with an advisory for brake binding, and it mirrors earlier advisories for front suspension wear, steering‑rack play and tyre damage. The pattern shows a vehicle that is being kept road‑legal but where key wear items are repeatedly flagged and not fully rectified, indicating a maintenance trend that is stagnating rather than improving. At 137,064 miles for a 2015 model the car averages roughly 12,500 miles per year, well above the UK average of about 8,000 miles. Such a mileage level accelerates the consumption of wear items – brake pads and discs, suspension bushings, steering joints and tyre tread – and it also raises the likelihood of internal component fatigue in the drivetrain and engine. The relatively high annual usage suggests the car has spent a substantial amount of time under load, which can exacerbate corrosion on suspension mounting points and increase the risk of heat‑related brake disc cracking. Prospective buyers should give particular attention to the front suspension arm pins and bushes on both sides; feel for any looseness or clunking when the wheels are turned at low speed and when driving over bumps. The steering rack has been noted for play within the allowable limit, but any increase in steering effort, shimmy at higher speeds or uneven wheel return could signal that the inner joints are deteriorating and may soon require replacement. The rear service brake on the off‑side was previously lagging and binding, and the 2021 MOT recorded dangerously thin rear pads and a severely weakened rear disc; a thorough inspection of pad thickness, disc surface condition and caliper operation is essential, and a test‑drive should reveal any pulsation, reduced braking force or a soft pedal. Tyre condition also warrants scrutiny – the off‑side front tyre was bald on the inner shoulder in 2023 and a near‑side rear tyre had a cut reaching the ply – so both tread depth and sidewall integrity should be measured, and any uneven wear patterns could point to lingering suspension or alignment issues. Beyond the specific defects, the car’s age means that time‑related checks are prudent. Verify that the 12‑volt battery holds charge and that terminal corrosion is absent, as prolonged standing can weaken battery life. Inspect all fluid reservoirs for signs of discoloration, water ingress or low levels; coolant, brake fluid and engine oil typically require replacement on a calendar basis even if mileage is modest. Examine the under‑carriage and wheel arches for rust, especially around suspension mounting points and brake calipers, and ensure the rear registration plate is securely fitted and legible. A complete service history, with stamps confirming regular oil changes, brake servicing and suspension component replacement, will provide further confidence in the vehicle’s overall roadworthiness.