Version with hose clamps:

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Release hose clamps.

Remove hoses (1) and (2).

Fig 1: Removing Hoses

Courtesy of BMW OF NORTH AMERICA, INC.