2015 Citroen C1 1.0L Petrol · GC15 AAV

The 998cc petrol engine in the Citroen C1 typically returns around 50-60 mpg in mixed driving, keeping fuel costs reasonable despite the high mileage — expect roughly £1,200-£1,500 annually in fuel if covering 8,000-10,000 miles. Road tax is £20 per year as the car falls below the £40,000 list price threshold for premium VED and emits under 100g/km CO2, placing it in a low tax bracket.

Insurance for the C1 is generally in groups 3-7 depending on variant, meaning relatively cheap premiums typically £300-£500 annually for a standard driver. However, the very high mileage may slightly affect valuations and insurance quotes.

Estimated annual maintenance for a C1 at this mileage could be £500-£900, factoring in wear items like brakes, suspension components, and tyres. Given the recent MOT failures, immediate remedial costs of £400-£700 should be budgeted on top. Total estimated annual running costs: £2,400-£3,100.

The MOT history points to front suspension components as the key area to scrutinise. The 2025 failure flagged both front anti-roll bar linkages and front suspension arm rear bushes as excessively worn — physically inspect these by hand for play, and listen for clonking noises over speed bumps. The brake pads were also noted as wearing thin, so check disc condition and remaining pad material.

Given the mileage approaching 160,000, inspect the engine bay for oil leaks (the small three-cylinder unit can weep from cam cover gaskets), check coolant condition, and look for signs of timing chain stretch — listen for a rattle on cold start. Examine the underside for corrosion, particularly around suspension mounting points and the rear axle area, as C1s of this age can develop surface rust.

Test all electrical items including the side repeater (which failed in 2025) and both front position lamps (which failed in 2024) — repeated minor electrical failures may indicate underlying wiring or switch issues. Check the clutch for slipping or heavy biting point, and verify the operation of all warning lights on the dashboard.