Coolant
Genuine Volvo coolant diluted with clean water in proportions of 50/50 is the only cooling medium which can be guaranteed by Volvo. This mixture helps to prevent damage due to corrosion and freezing.
Type C coolant (blue-green) must not be mixed with any other type.
Under normal circumstances; coolant requires replacement only when system is drained, for example in the course of repair work.
Use only type C coolant as a replacement.