41 00... Position Of Shaped Parts For Cavity Sealing
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
Cavity sealing is carried out in specific body areas in order to reduce internal noise and to reduce condensate. 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 expanding to the shape of the cavities.
Because it is not possible to heat the body to this extent for a body repair, a different procedure See 41 00... INSTALLING A CAVITY ACOUSTIC BAFFLE (EXPANDED) , 41 00... INSTALLING A CAVITY ACOUSTIC BAFFLE (NOT EXPANDED) or 41 00... INSTALLING A CAVITY SEALING WITH 2-COMPONENT PU CAVITY FOAM has been specified for this situation.