2015 Citroen C4 1.6L Diesel · KN15 ACZ

The 1.6 HDi diesel in the C4 typically returns around 55-65 mpg in real-world driving, which keeps fuel costs reasonable for higher-mileage use, and this 95,823-mile example suggests it has been used as exactly that kind of high-miler. Road tax on a 2015 diesel of this size usually sits in a moderate band, but check the current VED rate as post-2017 changes affect cars over £40,000 new. Insurance for a C4 generally falls into a middle group, and diesel servicing intervals tend to be every 12 months or 12,000-18,000 miles. Allow for typical diesel maintenance items such as timing belt changes, clutch wear (diesel clutches can be expensive) and AdBlue system checks. Estimated annual running cost: £1,200-£1,600 covering fuel, tax, insurance and routine maintenance including brake and suspension wear items.

Start with the items that have failed or been flagged on the MOT record. Inspect both front brake pads and both rear brake pads for remaining thickness, as these have failed or been advised on at every recent test. Check the front suspension arm pin or bush on the nearside (the most recent failure), the anti-roll bar linkage ball joints and their dust covers, and the front sub-frame bushes, which were advised on in 2024 and may have worsened. Verify that the rear registration plate lamp functions correctly across all sources, as this has been an MOT failure on two separate occasions, suggesting a possible wiring or connector fault rather than a simple bulb issue. Beyond the MOT items, inspect the clutch for slipping or juddering, check for oil leaks from the 1.6 HDi engine, and examine the underside for corrosion common to French cars of this era. Confirm that the timing belt and water pump have been replaced on schedule, as neglect here leads to expensive engine damage.