51 48 ... Removing and installing/replacing sound insulation on cowl panel/windscreen

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2008 BMW 335xi, 2008 BMW 335i, 2008 BMW 328xi, 2008 BMW 328i, and 2007 BMW 335xi. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Sound insulation can only be replaced with the following removed:

Windscreen

IMPORTANT: Press down expanding foam tape (5) shortly before installing windscreen (2) (with hand roller) or stick on if replacing.

Relaxed expanding foam tape could crush cement bead (3) (leaks, wind noises).

Replacement:

Attach new expanding foam tape (5) to bulkhead upper section (6).

Expanding foam tape (5) may only be stuck up to corner point of bulkhead upper section (6).

Dashboard trim panel
Windscreen
Glue bead
Retaining strip, bottom
Expanding foam tape (sound insulation, cowl panel)
Bulkhead upper section

Fig 1: Identifying Dashboard Trim Panel, Foam Tape, Windscreen, Glue Bead And Bulkhead Upper Section

Courtesy of BMW OF NORTH AMERICA, INC.