Cleaning and checking
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Check the brake fluid reservoir, the level switch, the check valves and seals.
Replace the seals if necessary.
Carefully clean the components that were not replaced. Clean off all contaminants and old brake fluid. Use new brake fluid.