WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Lever out door switch center (1) in direction of arrow.
Fig 1: Removing Door Switch Center
Courtesy of BMW OF NORTH AMERICA, INC.
Disconnect associated plug connection(s) and remove door switch center (1).