WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Removing Clamps From Inner Boot
Courtesy of VOLVO CARS OF NORTH AMERICA.
Secure the drive shaft in a vise with soft jaws.
Remove the clamps from the boot. Cut the boot and remove it from the shaft.