In-depth Reviews

Citroën C4 Cactus hatchback - MPG, running costs & CO2

The Citroen C4 Cactus can return over 63mpg, so fuel station visits will be rare

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MPG, running costs & CO2 Rating

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Citroen C4 Cactus MPG & CO2

All C4 Cactus engines were revised in 2019 to meet stringent RDE2-compliant emissions legislation. This brings improved fuel economy, lower emissions and peace of mind for drivers who want to keep their C4 Cactus for a few years and continue to meet emissions standards. Citroen’s petrol engine range is definitely the one to go for if you don’t cover many miles a year or mostly make short trips around town.

All engines are fitted with stop-start to save fuel in traffic. The 108bhp 1.2-litre PureTech 110 engine with the manual gearbox returns 51.5mpg and has CO2 emissions from 131g/km, getting it a reasonable Benefit-in-Kind (BiK) rating. You get 20bhp extra if you spec the six-speed automatic gearbox, but it’s costlier to buy and is slightly less economical, with figures of 47.3mpg and 138g/km of CO2. Every C4 Cactus costs £150 a year to tax.

Fuel economy figures for the diesel models are even more impressive. In 2019, the BlueHDi diesel was reworked for RDE2-compliance and should return better fuel economy and lower emissions. Just like the petrol engine, there are two power outputs - 99bhp for cars with a manual gearbox and 118bhp for those with an automatic. These return up to 63.4mpg and 58.2mpg respectively, and the manual is best for company-car drivers with low CO2 emissions (and therefore a lower BiK rating) of 119g/km.


All Citroens come with a three-year/60,000-mile warranty that can be extended by one or two years at extra cost. Rivals Hyundai and Kia do better, with five and seven years of cover respectively, although if you tend to buy your car on finance and change it every three years, that won’t be as much of an issue.


A range of modestly powered engines means no Citroen C4 Cactus is likely to be expensive to insure. The insurance group ratings range from group 16 to 22.


Citroen dealers run service plans that mean you can pay for your Cactus’ servicing with interest-free monthly payments. The plans cover your car for either 20 months (two services) or 32 months (three services). Contact your local dealer for exact prices.

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