Remove the master cylinder
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.
Remove the master cylinder from the power brake booster.
Lift the master cylinder up carefully to avoid damaging the brake pipes.
Pull the brake pipes out of the mountings on the firewall.
NOTE:
Hold the master cylinder in the horizontal position so that no air enters the brake system.
Remove the driver's side soundproofing panel