2015 Citroen C4 1.6L Diesel · RO15 LKA

The most recent MOT on 23 April 2026 recorded a pass, but a concurrent failure was logged for a non‑functioning horn, which is a mandatory safety item under regulation 7.7(a). Prior to that the vehicle suffered a failure in April 2024 for a defective anti‑roll‑bar linkage dust cover and excessive play in the near‑side front track‑rod end, both classified as major defects, together with advisory notes on tyre condition and rear‑exhaust mounting. Earlier MOTs in 2025 and 2024 highlighted front brake disc and pad wear, while the 2023‑2021 tests were clean. The pattern shows a shift from a clean record to emerging suspension and safety‑system concerns, indicating a maintenance trend that is beginning to deteriorate rather than improve. At 101 626 miles for an eleven‑year‑old Citroën C4 the average annual mileage works out at roughly 9 200 miles, which sits within the normal UK usage envelope. The mileage does not suggest excessive short‑trip abuse, but it does imply that wear items such as brake discs, pads, tyres and suspension components have been subjected to a substantial distance. The presence of a rear‑exhaust mounting advisory and front‑track‑rod play suggests that some of the load‑bearing parts may have been operating under higher stress, potentially accelerated by any periods of low mileage or standing that can allow corrosion to develop unnoticed. A prospective buyer should give particular attention to the horn – verify that it produces a clear, audible tone on both low and high settings, as a faulty horn is a legal failure point. Inspect the front brake system for disc thickness, pad remaining material and any uneven wear that could indicate caliper sticking; a test‑drive should reveal any shudder or pulsation when applying the brakes. Examine the rear‑exhaust mounting for signs of cracking, rust or loose brackets, and check the anti‑roll‑bar linkage dust cover for missing or damaged sealing that could let grit infiltrate the joint. The near‑side front track‑rod end must be checked for excessive play by applying firm steering input while the vehicle is stationary; any clunk or looseness under load points to imminent replacement. Tyre condition warrants close scrutiny – the near‑side rear tyre was flagged as near the legal limit and the off‑side rear tyre has a cut; look for tread depth below 1.6 mm, sidewall cracking, or the cut extending towards the ply, and verify that the spare tyre, if present, is also serviceable. Given the vehicle’s age, even with a moderate mileage, time‑related degradation should be assessed. Inspect the battery for sulphation and confirm it holds charge under load, as twelve‑volt units often lose capacity after a decade of intermittent use. Examine all fluid reservoirs – engine oil, coolant, brake fluid and power‑steering fluid – for colour, level and any signs of contamination; fluids typically require replacement at least every two years regardless of mileage. Look for corrosion on chassis mounting points, especially around the suspension and exhaust brackets, and ensure that rubber bushings and mounts are not cracked or collapsed. A thorough visual and tactile inspection of the under‑carriage, combined with a careful road test for any unusual noises, vibrations or handling irregularities, will give a clear indication of whether the car remains mechanically sound or is approaching a point where major component replacement will be required.