For 2008 C1 engine it’s necessary to get normal temperature balance. Only Red antifreeze type is suitable and you’ll need 4 liters of it. There are some conditions in servicing cooling module at Citroen C1. Don’t underestimate the importance of Citroen’s 1.4 engine cooling system. It’s better to choose fluid in combination of 2011 year, 1.4 volume of motor and engine code of DV4D.
Look at Citroen’s requirements and make your 2009 C1 serve longer and with no problem. It’s obvious that every DV4D motor needs good service as stated by Citroen in instruction. Better buy 4.4 liters of good antifreeze in Red color. 1.4 C1 motors of 2011 year will serve more by optimal service.