For filling up the system you will use 5.7-6 liters of special Red coolant type. It’s important to provide cooling for Citroen’s engine with 1.6 liters volume. Only exact type of antifreeze will suit Citroen DS3 cooling system. Before choosing fluid note that engine code 5FS (EP6C) and volume of 1.6 were installed to your car in 2010. Otherwise DS3 made in 2010 won’t serve you long enough.
It’s obvious that every 9HR(DV6C) motor needs good service as stated by Citroen in instruction. If you choose other than Red coolant or use less than 5.7-6 liters, you can’t expect normal work. Look at Citroen’s requirements and make your 2010 DS3 serve longer and with no problem. 1.4 DS3 motors of 2010 year will serve more by optimal service.