Removing the front seat adjustment knobs
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.
Remove the side panel. See Side panel, replacing (manual seats) or Side panel and control panel power seat, replacing (power seats).
Removing the adjustment knob from the lumber support:
Turn the knob counter-clockwise as far as possible.
Using some force, pull the knob outwards while turning it counter-clockwise.
Remove the washer.
Removing the adjustment knob for the backrest:
Pull off the knob with a twisting movement.
Remove the nut from the shaft.
Remove the guide for the adjustment knob.