16 11 120 Removing and installing / replacing expansion tank for tank ventilation

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove rear right wheel,

Remove rear right wheel arch trim.

Unfasten plastic nut (1).

Unfasten hose clip (2) and remove hose.

Tilt expansion tank (3) forwards at bottom.

Fig 1: Unfastening Plastic Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release hose clip (1) and disconnect hose (2).

Release hose clip (3) and disconnect hose (4).

Remove expansion tank (5).

Fig 2: Releasing Hose Clip And Disconnect Hose

Courtesy of BMW OF NORTH AMERICA, INC.