2016 Citroen C4 1.6L Diesel · EN16 NSZ

The 1.6-litre HDi diesel engine in the 2016 Citroën C4 typically returns around 60-65 mpg on the motorway and 45-50 mpg in mixed driving, making it a frugal choice for high-mileage drivers. As a car first registered in June 2016, this C4 falls just outside the scope of the newer VED bands introduced later that year, so it should sit in a relatively modest tax bracket — likely £20-£30 per year depending on exact CO2 figures. Road tax for diesel vehicles of this age remains affordable provided the car is not subject to any upcoming low-emission zone charges, though cities like London and Birmingham may apply daily charges that buyers should factor in.

Insurance for the Citroën C4 typically falls into groups 15-22 depending on trim level, placing it in a moderately affordable bracket for most drivers. Annual premiums will vary significantly based on your driving history, location, and age, but generally expect to pay less than you would for equivalent petrol or hybrid competitors. Routine maintenance costs for the C4 are reasonable, with annual servicing typically costing £150-£250 depending on whether you use a main dealer or independent garage. Common replacement parts including brake pads, filters, and tyres are competitively priced due to shared platforms with Peugeot models.

Estimated annual running costs for this vehicle, factoring in fuel for approximately 8,000-10,000 miles, road tax, insurance, and routine maintenance, would likely fall in the region of £1,400-£1,800 per year. This makes the C4 diesel a cost-effective choice for those covering higher mileages, though diesel owners should budget for potential DPF-related repairs as the vehicle ages past 80,000 miles.

Based on the MOT history, the specific items to prioritise during inspection are the offside front tyre condition and the reversing lamp functionality. While these were flagged in 2024 and presumably rectified, check that the replacement tyres are of matching quality and that the reversing lamp operates reliably. Tyre wear patterns on the offside front can sometimes indicate tracking issues or worn suspension components, so inspect the inner and outer tread carefully and look for any uneven wear or feathering. Also examine the condition of all other tyres, as the advisory suggests the offside front was nearing the legal limit and others may be similarly aged.

For the 1.6 HDi diesel engine specifically, check for any signs of turbocharger wear including blue smoke on startup or under acceleration, which could indicate failing turbo seals. Listen for any rattling from the timing chain area on cold start, as this engine can suffer from timing chain stretch on higher-mileage examples. Inspect the exhaust system for excessive soot or smoke, which might suggest DPF issues — a costly repair on diesel vehicles. Check the engine oil level and condition via the dipstick, and look for any mayonnaise-like residue under the oil cap which could indicate head gasket concerns, though these are uncommon on this engine.

General inspection points should include a thorough check of the clutch operation for any slipping or juddering, examination of the bodywork for the typical Citroën C4 corrosion hotspots around the wheel arches and lower door panels, and verification that all electrical systems function correctly including the infotainment unit, climate control, and central locking. Test drive the vehicle over varied road surfaces to listen for any suspension knocks or clonks, and check that the steering remains precise without excessive play. Finally, confirm that all warning lights on the dashboard illuminate and extinguish correctly during ignition.