There are some conditions in servicing cooling module at Volvo C30. Don’t underestimate the importance of Volvo’s 2.4 engine cooling system. It’s better to choose fluid in combination of 2010 year, 2.5 volume of motor and engine code of B5254T7. It’s important to use 6.5 liters of coolant which has Green color. In other way 2007 C30 won’t be used quite long and efficiently.
It’s obvious that every B4164S3 motor needs good service as stated by Volvo in instruction. 2.0 C30 motors of 2008 year will serve more by optimal service. Look at Volvo’s requirements and make your 2009 C30 serve longer and with no problem. If you choose other than Green coolant or use less than 6.5 liters, you can’t expect normal work.