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

NOTE: Sound insulation is only fitted in vehicles with diesel engines.

Sound insulation can only be replaced with the following removed:

Instrument panel or
WINDSCREEN

Fig 1: Identifying Expanding Foam Tape, Adhesive Bead And Sound Insulation On Windscreen

Courtesy of BMW OF NORTH AMERICA, INC.

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

Stick new expanding foam tape (5) on sound insulation (7) along press-down elements (6).

Expanding foam tape (5) may only be stuck up to corner point of sound insulation (7).

Dashboard trim panel
Windscreen
Adhesive bead
Retaining strip, bottom
Expanding foam tape (sound insulation, cowl panel)
Press-down elements for (7)
Sound insulation, bulkhead upper section
Side frame