Disconnecting switch
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.
Ignition off.
Carefully insert an electrician's screwdriver or weatherstrip tool between the panel and the side edge of the switch. Carefully pry outwards until the switch can be gripped with the fingers.
NOTE:
Put something between the screwdriver and the surrounding panel so as not to damage it.
Pull the switch out.
Disconnect the connector.
Replace the switch.