Removing the sill trim panel and mounting clamps
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.
Press the lock tabs inwards using weatherstrip tool 9814071 and release the sill trim panel by carefully pulling upwards.