For 2003 C 15 engine it’s necessary to get normal temperature balance. For filling up the system you will use 7 liters of special Red coolant type. There are some conditions in servicing cooling module at Citroen C 15. You should be careful at choosing liquids for Citroen especially for vehicles having 1.9 motor. You may use code of motor 161A(XUD7) and volume figure of 1.8 or just tell the 1989 year of production to buy liquid.
So, don’t choose different from Red coolant and obey the number of 8 liters. Look at Citroen’s requirements and make your 2005 C 15 serve longer and with no problem. Providing you keep the rules 1.9 motor installed in C 15 of 2001 year will be long lasting. A lot of WJX(DW8B) motors are used long in Citroen cars but only with good service.