Section 1 (Specifications & Drive Belt Routing): Servicing
WARNING: This page is about a different car, the 2004 Volvo XC90 and 2003 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.
The coolant does not usually need replacing. In the case of larger repairs when coolant needs to be drained, new coolant must be used because the old has been exposed to oxidation and dirt. Clean the cooling system when replacing coolant. Fill with 50/50 mix of clean water and coolant.