13 Removing intake duct (N54)
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
Unfasten screws. Tightening torque, see 13 71 5AZ Unlock intake duct (1) at side and detach from air cleaner housing. Remove intake duct (2) in direction of arrow.