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/Installing Fan Blade And Motor
Courtesy of VOLVO CARS OF NORTH AMERICA.
Remove the nut or clip
Pull off the fan blade
Pull the cable out of the clamping and the connector
Remove the nuts or bolts and take the fan motor out.