41 00... Position Of Shaped Parts For Cavity Sealing
WARNING: This page is about a different car, the 2008 BMW 760Li, 2007 BMW 760Li, 2006 BMW 760i, and 2006 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
In order to reduce the interior noise and to prevent condensation water, the cavities are partitioned in specific areas of the body. To do this, shaped parts are inserted in the cavities. These shaped parts adapt themselves optimally due to heating of the body to approx. 180°C by expansion to the shape of the cavities.
As it is not possible to heat the body to this extent for a body repair, a different procedure has been laid down for this instance.