General information about foam filling
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.
Foam filling with front-rear channels and one lateral channel.
Foam filling with front-rear channels, one lateral channel and a design channel.
Foam filling with front-rear channels, two lateral channels and a design channel.
Foam filling with linked front-rear channels, two lateral channels and a design channel
(The channels are used to secure upholstery to the foam filling.)