11 61 095 Removing and installing/replacing DISA adjustment unit
WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Turn off ignition.
E46 only:
Disconnect intake hose between air-mass flow sensor and connecting piece.
Unlock plug (1) and detach from DISA adjustment unit (DISA = differentiated air intake system).
Release screws.
Withdraw DISA adjustment unit (1) from intake air manifold.