Version without inside reading lamps:

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Lever out complete ceiling light (1) in direction of arrow.

Fig 1: Removing Ceiling Light

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection underneath and remove complete ceiling light (1).